bluuebunny/crossref_metadata_2025 huggingface dataset:
Generation of circularly polarized ultra-broadband MIR pulses through the laser-induced filament of atmosphere
Authors: Huang Wei-Hong , Sie Yi-Ruei , Luo Chih-Wei
Published: September 2024

Circularly polarized MIR pulses were generated by polarization-twisting optical dual pulses via a modified Michelson interferometer with the turnability of frequency, helicity, and time interval between two pulses.
Deterministic vortices evolving from partially coherent fields
Authors: Miao Wenrui , Zhang Yongtao , Gbur Greg
Published: September 2024

It has long been believed that there is an intrinsic conflict between vortices and partial coherence. However, we demonstrate that a partially coherent beam can be designed, through the use of fractional Fourier transforms (FracFTs), to manifest a deterministic vortex at any range and for any degree of spatial coherence in the source plane.
Chip-based Multidimensional Entanglement Network with Hybrid Multiplexing
Authors: Zhai Chonghao , Zheng Yun , Liu Dajian , Dai Daoxin , Wang Jianwei
Published: September 2024

We demonstrate a chip-based multidimensional entanglement network with hybrid multiplexing technology and develop a technique that can efficiently retrieve multidimensional entanglement in complex-medium quantum channels, which is important for practical uses.
Genetic Algorithm-Enabled Microcomb Tailoring in Microring Resonators
Authors: Mazoukh Celine , Di Lauro Luigi , Alamgir Imtiaz , Perron Nicolas , Fischer Bennet , Rahim Aadhi A. , Eshaghi Armaghan , Little Brent E. , Chu Sai T. , Moss David. J. , Morandotti Roberto
Published: September 2024

We present a novel approach to robustly tailor microcomb states in microring resonators pumped with a continuous-wave laser source, employing genetic algorithms to optimize the parameters required for coherent state generation.
Counter-propagating solitons in coupled ring microresonators
Authors: Yu Yan , Ge Jinhao , Gao Maodong , Yuan Zhiquan , Jin Warren , Guo Joel , Chen Hao-Jing , Ji Qing-Xin , Feshali Avi , Paniccia Mario , Bowers John , Vahala Kerry
Published: September 2024

Counter-propagating solitons are generated in CMOS-ready coupled microresonators featuring normal dispersion. In each direction, the soliton mode locks and compensates the dispersion through the formation of a pulse pair. Both the spectra and the radiofrequency beatnotes of counter-propagating solitons are observed.
Plasmonics-engineered dispersive-dissipative modal couplings
Authors: Zhu Xiaoxiu , Xiong Xiao , Cao Qi-Tao , Zhu Zhendong , Liu Wenjing , Gong Qihuang , Xiao Yun-Feng
Published: September 2024

We establish the phase diagram for the plasmonics-engineered couplings between whispering gallery modes, and experimentally demonstrate exotic phenomena with an integrated hybrid microresonator, including the engineered dissipative-dispersive couplings, and modal splitting at tens of gigahertz.
On-chip terahertz plasmonic reflector
Authors: Rajabali Shima , Enkner Josefine , Cortese Erika , Beck Mattias , De Liberato Simone , Faist Jérôme , Scalari Giacomo
Published: September 2024

Recent research revealed that in resonators with deep subwavelength gaps coupled to two-dimensional electron gases, propagating plasmons lead to energy leakage, hindering polaritonic resonance. This study introduces plasmonic reflectors to create an artificial energy stopband, confining terahertz-range plasmons and recovering polaritonic resonances. Using this approach demonstrates a normalized coupling ratio of Ω
R
/ω0 = 0.36, enabling the observation of polaritonic resonances not seen without plasmonic reflectors.
All-Optical Subcycle Microscopy at the Atomic Scale
Authors: Hayes Johannes , Siday Thomas , Schiegl Felix , Sandner Fabian , Menden Peter , Bergbauer Valentin , Zizlsperger Martin , Nerreter Svenja , Lingl Sonja , Repp Jascha , Wilhelm Jan , Huber Markus A. , Gerasimenko Yaroslav A. , Huber Rupert
Published: September 2024

Utilizing a qualitatively new nonlinear contrast mechanism in near-field light-matter interaction emanating from ultrafast tunneling currents, we promote all-optical microscopy to the atomic scale. This way we trace atomically confined tunneling currents with subcycle precision.
Enabling phase-stable quantum protocols over optical fiber networks
Authors: Nardelli N. V. , Shalm L. K. , Mazurek M. D. , Fortier T. M.
Published: September 2024

We present a path length stabilization protocol using interleaved photonic classical and quantum channels through a 200 m fiber link and demonstrate a phase drift < λ⁄50 over 10 minutes.
Local and Non-Local Phase-Change Metasurfaces for Reconfigurable Optical Edge-Detection
Authors: Kendall Stuart , de Galarreta Carlota Ruiz , Shields Joe , Yang Guoce , Wang Mengyun , Lee June Sang , Farmakidis Nikolaos , Moskalenko Andy , Huang Kairan , Mencagli Mario , Deguzman Lou , Alù Andrea , Bertolotti Jacopo , Bhaskaran Harish , Wright C. David
Published: September 2024

Local and non-local phase-change metasurfaces for dual-function edge-detection/bright-field imaging are designed and simulated. Reconfigurability is via switching phase-change material between crystal and amorphous states. Applications include fast pre-processing for image analysis, optical microscopy and more.
How Much Time Does a Photon Spend as an Atomic Excitation Before Being Transmitted?
Authors: Thompson Kyle , Li Kehui , Angulo Daniela , Nixon Vida-Michelle , Sinclair Josiah , Sivakumar Amal Vijayalekshmi , Wiseman Howard M. , Steinberg Aephraim M.
Published: September 2024

We show that if a photon is transmitted through an atom cloud, the time it spent as an atomic excitation along the way—as measured by weakly probing the atoms— is equal to the group delay, which can be negative.
Efficient heralding of pure single-photons at telecom wavelength from pulsed cavity-enhanced SPDC
Authors: Planas Xavier Barcons , Chrzanowski Helen M. , Messner Leon , Wolters Janik
Published: September 2024

Highly efficient sources of pure single photons are essential for photonic quantum technologies. We present a source of pure single-photons with 85% heralding efficiency based on pulsed spontaneous parametric down-conversion in a monolithic cavity.
Dual quantum comb generation via cascaded cavities
Authors: Cheng Xiang , Chang Kai-Chi , Chen Yujie , Sarihan Murat Can , Wong Chee Wei
Published: September 2024

We demonstrated the dual quantum comb generation via a cascaded cavities scheme. The dual quantum comb state is examined via temporally-resolved correlation measurements, verifying the quantum coherence of the constituent quantum comb states.
Disordered Metasurface Doublets for Asymmetric Visibility and Synergistic Imaging in the Mid-infrared
Authors: Audhkhasi Romil , Zhelyeznyakov Maksym , Wirth-Singh Anna , Majumdar Arka
Published: September 2024

We propose an all-silicon metasurface doublet that performs imaging in the mid-infrared only along a predefined light propagation direction. As a second application, we optimize two metasurfaces to perform imaging only when used in conjunction with each other.
All-Dielectric Metasurface With Over 500 nm of Tuning in the Midwave Infrared
Authors: Frantz J. A. , McGinnis Cobey L. , Clabeau A. , Bekele R. Y. , Myers J. D. , Moore A. F. , Nguyen V. Q. , Sanghera J. S.
Published: September 2024

An all-dielectric metasurface filter, based on an As2S3 metasurface paired with an As2S3 shifter, with over 500 nm of tuning in the midwave infrared is presented. Theoretical results are compared to experimental data.
Optical memory in non-diffractive speckle fields
Authors: Lee Kang-Min , Acevedo Cristian Hernando , Dawda Shubham , Dogariu Aristide
Published: September 2024

We numerically and experimentally demonstrate an optical memory effect that occurs when a perfect vortex beam interacts with inhomogeneous media. Our results suggest a new way to effectively characterize randomly inhomogeneous media.
Enhancing the Size of Momentum Bandgaps Using Resonant Spatiotemporal Metasurfaces
Authors: Garg P. , Wang X. , Lamprianidis A. , Mirmoosa M. S. , Asadchy V. S. , Rockstuhl C.
Published: September 2024

Photonic time crystals often require high modulation depths of material properties to exhibit large momentum bandgaps. We show that such a requirement can be dramatically relaxed by exploiting the structural resonances of a spatiotemporal metasurface.
Ultrafast Optical Modulation by Virtual Interband Transitions
Authors: Narimanov Evgenii E.
Published: September 2024

We present an approach to non-perturbative optical modulation based on virtual interband transition excitation. It can induce a large change of the refractive index, that is inherently ultra-fast and dissipation-free.
Ultrafast Nanoscopy of Single-Grain Morphology and Charge Carrier Dynamics in Metal Halide Perovskites
Authors: Nerreter Svenja , Zizlsperger Martin , Yuan Qimu , Lohmann Kilian B. , Sandner Fabian , Schiegl Felix , Meineke Christian , Gerasimenko Yaroslav , Herz Laura M. , Siday Thomas , Huber Markus A. , Johnston Michael B. , Huber Rupert
Published: September 2024

Deep-subcycle shifts of terahertz near-field waveforms reveal the interplay of ultrafast carrier dynamics and nano-morphology in metal halide perovskites. A surprising robustness of out-of-plane diffusion against structural and chemical variations is found on the nanoscale.
Ultrafast scanning tunneling spectroscopy of a phonon-driven atomic vacancy in a monolayer crystal
Authors: Gerasimenko Yaroslav A. , Roelcke Carmen , Kastner Lukas Z. , Graml Maximilian , Biereder Andreas , Wilhelm Jan , Repp Jascha , Huber Rupert
Published: September 2024

Understanding the interplay of atomic and electronic motion requires probing at intrinsic space-time-energy scales. We resolve phonon modulations of defect-bound states by sampling electronic spectra with atomic and sub-ps precision, faster than a vibration period.
Anomalous relativistic reflectivity in near-critical density femtosecond laser-plasma interactions
Authors: Cao Sida , Gong Zheng , Edwards Matthew R.
Published: September 2024

We report an anomalous opacity effect in relativistic near-critical density laser-plasma interactions due to a drifting electron density spike. Orders-of-magnitude higher reflectivity than the relativistic transparency expectation is demonstrated by particle-in-cell simulations.
Efficient valleytronic switches for high-sensitivity electric-field measurements
Authors: Borsch Markus , Mi Zetian , Huber Rupert , Kira Mackillo
Published: September 2024

We study the efficiency of lightwave-induced valleytronic switching of coherent excitons using quantum-dynamic cluster expansion computations and apply a sequence of valleytronic switches for high-sensitivity detection of electric-field fluctuations.
Quantum entanglement of microwave and optical photonic qubits with a chip-scale transducer
Authors: Lake David P. , Meesala Srujan , Wood Steven , Chiappina Piero , Zhong Changchun , Beyer Andrew D. , Shaw Matthew D. , Jiang Liang , Painter Oskar
Published: September 2024

We generate entangled microwave and optical photonic qubits with a chip-scale piezo-optomechanical transducer. We envision such an entangled pair source as an important building block for optical networking of superconducting quantum processors.
Higher-Order Topological Corner and Edge Modes in Polaritonic 2D-SSH and Breathing Kagome Lattices
Authors: Gagel P. , Düreth J. , Betzold S. , Landry A. , Mayer C. G. , Laibacher D. , Dam S. , Beierlein J. , Emmerling M. , Höfling S. , Klembt S.
Published: September 2024

We demonstrate lasing from higher-order topological corner and edge modes in polaritonic two-dimensional Su-Schrieffer-Heeger and breathing Kagome lattices. Novel hybrid III/V-dielectric microcavities are implemented, ensuring precise inter-site couplings and thus topologically protected laser modes.
Observation of Topological Singularity Mapping in Photonic Kagome Lattice
Authors: Wang Yihan , Bongiovanni Domenico , Hu Zhichan , Wang Junqian , Lei Sihong , Liu Xiuying , Song Daohong , Morandotti Roberto , Chen Zhigang
Published: September 2024

We report momentum-to-real-space topological singularity mapping in photonic Kagome lattice, where selective excitation of pseudospin states around the Dirac point leads to direct observation of pseudospin-dependent optical vortex generation.
Quantized pumping in disordered nonlinear Thouless pumps
Authors: Chaudhari Abhijit , Jürgensen Marius , Rechtsman Mikael C.
Published: September 2024

Solitons have been shown to exhibit rigorously quantized motion in Thouless pumps, despite not uniformly populating a band. Here we experimentally demonstrate that they maintain that quantization even in the presence of disorder up to a critical threshold, unlike Wannier functions.
Probing the Formation of Nonlinear Optical States with Free Electrons
Authors: Henke Jan-Wilke , Yang Yujia , Kappert F. Jasmin , Raja Arslan S. , Arend Germaine , Huang Guanhao , Feist Armin , Qiu Zheru , Wang Rui Ning , Tusnin Aleksandr , Tikan Alexey , Kippenberg Tobias J. , Ropers Claus
Published: September 2024

Combining nonlinear integrated photonics with electron microscopy, we probe the formation of optical dissipative structures in Si3N4 microresonators with free electrons and find unique spectral fingerprints in the electron spectrum that enable new electron beam modulation schemes.
Fast-gain for photonic emulation of synthetic lattices with fully populated bands
Authors: Dikopoltsev Alexander , Heckelmann Ina , Bertrand Mathieu , Scalari Giacomo , Beck Mattias , Zilberberg Oded , Faist Jérôme
Published: September 2024

Photonic emulators facilitate solid-state phenomena exploration and optical quantum-inspired device development. We propose and demonstrate fast-gain semiconductor ring lasers as coherent lattice emulators with fully populated reciprocal space, harnessing interactions unique to synthetic space.
Modulation and Trapping of 2D Excitons Using Surface Acoustic Wave Resonators
Authors: Ripin Adina , Boyer Hannah , Li Mo
Published: September 2024

We aim to trap exciton in monolayer and homobilayer WSe2 using an on-chip surface acoustic wave resonator. Trapping of excitons is detected from the spatial pattern of the photoluminescence (PL) of the excitons.
Optical Pump THz Probe Spectroscopy on Metal-Organic Frameworks
Authors: Ostresh Sarah , Nyakuchena James , Streater Daniel , Wang Denan , Cody Claire , Hooper Reagan , Zhang Xiaoyi , Reinhart Benjamin , Ma Qiushi , He Peilei , Brudvig Gary W. , Huang Jier , Neu Jens
Published: September 2024

Optical Pump THz Probe (OPTP) Spectroscopy is an outstanding technique to understand photoconductivity in emerging materials. We utilized OPTP to explore the photoconductivity in porous crystalline metal-organic frameworks (MOFs). MOFs are highly porous and their properties can be adjusted by synthesize and chemical composition, making them an tool box for advanced ultralight electro-optical applications. These applications are limited by the insight into the underlying photophysics in MOFs. Our OPTP results revealed ultrafast photoconductivity. We were able to understand the influence of different metal centers in two types of MOFs and OPTP results agreed with catalytical activity measurements and demonstrate that the catalysis in this material is more determined by photoconductivity than by “common” catalytic chemistry wisdom.
Identifying Anharmonic Coupling Pathways using 2D THz Spectroscopy
Authors: Biggs Megan F. , Knighton Brittany E. , Alejandro Aldair , Hassler Abby , Rader Claire , Mousavi Seyyed Jabbar , Johnson Jeremy A.
Published: September 2024

We combine Raman scattering, terahertz transmission, sample angle dependences, and two-dimensional THz scans to determine 16 possible anharmonic couplings in x-cut beta-barium borate, but are limited in further analysis by overlapping coupling signals.
Machine learning discovers parsimonious equations governing incoherent emission steering from semiconductor metasurfaces
Authors: Desai Saaketh , Dingreville Remi , Iyer Prasad P.
Published: September 2024

We develop neural network based equation learners to discover governing equations relating metasurfaceincoherent emission steering to critical features defining its spatial refractive index profiles.
Integrated Magnetic Field Camera Based on Infrared Absorption ODMR Mediated by Diamond NV Centers
Authors: Bopp Julian M. , Conradi Hauke , Perona Felipe , Palaci Anil , Wollenberg Jonas , Flisgen Thomas , Liero Armin , Christopher Heike , Keil Norbert , Knolle Wolfgang , Knigge Andrea , Heinrich Wolfgang , Kleinert Moritz , Schröder Tim
Published: September 2024

Life sciences demand for chip-integrated, fiber-packaged magnetic field cameras to image pulses propagating along nerves. For the first time, we propose and demonstrate such a magnetic field camera employing diamond NV infrared absorption ODMR.
Transmission in a Field-Deployed Multimode Fiber Cable
Authors: Dallachiesa L. , Ryf R. , Mazur M. , Fontaine N. K. , Sillard P. , Antonelli C.
Published: September 2024

In this invited paper, we review our recent results for mode-division-multiplexed transmission over subsets of spatial modes in a field-deployed 15-mode fiber cable, and analysis of impulse responses from individual fiber strands in the cable.
Laser Nutation Alignment with Multicore Fiber for Common Optical Path FSOC System
Authors: Fan Qirun , Ao Xueyuan , Du Haoze , Xu Qirui , Zhong Jingzhe , Luo Li , Dai Xiaoxiao , Yang Qi , Tang Ming , Liu Chen
Published: September 2024

We utilize multicore fiber with a stepped structure to nutate the laser terminals within large range and construct a common optical path for the free space optical communication terminal without splitting the incident light beam.
Large-scale photonic chip based pulse interleaver for low-noise microwave generation
Authors: Qiu Zheru , Singh Neetesh , Liu Yang , Ji Xinru , Wang Rui Ning , Kärtner Franz X. , Kippenberg Tobias
Published: September 2024

We demonstrate a 64-times multiplication of a mode-locked laser’s 217 MHz pulse repetition rate using an integrated Si3N4 interleaver with a compact 8.5 mm × 1.7 mm footprint, for the generation of a low-noise 14 GHz microwave signal.
Wavelength-division-multiplexed Transmission and Dispersion Compensation Enabled by Soliton Microcombs and Cascaded Microrings
Authors: Liu Yuanbin , Zhang Hongyi , Liu Jiacheng , Lu Liangjun , Du Jiangbing , Li Yu , He Zuyuan , Chen Jianping , Zhou Linjie , Poon Andrew W.
Published: September 2024

We demonstrate wavelength-division-multiplexed data transmission and dispersion compensation of 25 Gb/s × 9 on-off-keying signals over a 20-km singlemode fiber using an integrated single-soliton microcomb and a cascaded microring resonator-based reconfigurable dispersion compensator.
Silicon Photonic Integration of DWDM and Mode-Division Multiplexing for Advancing Multi-Dimensional Data Transmission
Authors: Parsons Robert , Meng Xiang , Robinson James , Hattink Maarten , Novick Asher , Rizzo Anthony , Dave Utsav D. , Lipson Michal , Bergman Keren
Published: September 2024

We demonstrate an innovative integration of DWDM and Mode-Division Multiplexing, enabling multi-dimensional transmission with 8 wavelengths and 4 modes. The packaged photonic chip demonstrates a remarkable 512 Gbps aggregate bandwidth with a BER < 1e-9.
Multi-comb Interferometry Using Photonic Molecule Microcombs
Authors: Rebolledo-Salgado Israel , Girardi Marcello , Helgason Óskar Bjarki , Zelan Martin , Torres-Company Victor
Published: September 2024

Microcomb-based phase-sensitive interferometry is demonstrated over a broad bandwidth using power-efficient solitons. This work highlights the possibilities of spatial multi-sensing using chip-scale frequency combs enabled by wafer-scale manufacturing with a high yield.
Beyond Labels: Advancing Single Molecule Sensitivity with Hot Fabry-Perot Micro Cavities
Authors: Saavedra Carlos , Sole-Barber Daniel , Rasch Julia , Needham Lisa-Maria , Goldsmith Randall
Published: September 2024

Fiber-Fabry-Perot microcavities are tools that enhance light-matter interactions. A new detection scheme exploiting photo-thermal effects and Pound-Drever-Hall locking technique enabled label-free detection of solution-phase single biomolecules hundred times smaller than the wavelength in solution phase.
New HOPE for Lipid Imaging: New Hybrid Optical Parametrically-oscillating Emitter at 1.7 µm for Lipid-based Photoacoustic Microscopy
Authors: Sharmin Najia , Chen Ji-Xiang , Tang Huajun , Lee Nikki Pui Yue , Tong Yitian , Wong Kenneth K.Y.
Published: September 2024

A new-type hybrid optical parametrically-oscillating emitter (HOPE) is proposed at 1725 nm, attaining less than 0.1 ns pulse width jitter. It is applied for lipid-based photoacoustic microscopy, differentiating fatty and healthy human liver specimens.
Precision Frequency Comb Spectroscopy of Reactive Molecular Plasmas
Authors: Sadiek Ibrahim , Lang Norbert , Fleisher Adam J. , van Helden Jean-Pierre
Published: September 2024

Using precision frequency comb spectroscopy, we study low-pressure molecular plasmas containing nitrogen, hydrogen, and a carbon source. We obtain precise quantum-state-resolved knowledge of plasma-generated molecules, providing insights into the non-thermal nature of plasma chemical processes.
Dual-wavelength emission from an Yb:YAG thin-disk laser
Authors: Boubekraoui Ayoub , Graf Thomas , Ahmed Marwan Abdou
Published: September 2024

We experimentally demonstrate a dual-wavelength emission with adjustable wavelength separation from 0 nm to 27 nm from an Yb:YAG thin-disk laser by using a pair of high diffraction efficiency grating waveguide structures inside the resonator.
High Speed Optical Wireless Receiver with Wide Coverage
Authors: Chen Rui , Ali Wajahat , Liu Yi , Crisp Michael , Penty Richard V.
Published: September 2024

An optical wireless receiver at 850 nm is realized, providing 8.6 Gbps maximum data rate and >7 Gbps data rate across a 9.5 cm lateral coverage at 3 m range with a BER of < 2 × 10−3.
Polarization Fading Suppression Based on Passive Metasurface for Self-homodyne Coherent Detection
Authors: Cheng Zhi , Wang Yue , Zhou Jing , Wang Zhuo , Qu Jiaqi , Wang Li , Yu Changyuan
Published: September 2024

Passive metasurface using supercell design achieves non-uniformly mapping of SOPs on Poincaré sphere to suppress polarization fading. Applied in a 60-Gbaud DP-16QAM self-homodyne optical network, it reduces the probability of burst error by over 40%.
A Fully Programmable On-Chip Planar Waveguide for Machine Learning
Authors: Stein Martin M. , Onodera Tatsuhiro , Ash Benjamin A. , Sohoni Mandar M. , Bosch Melissa , Yanagimoto Ryotatsu , Jankowski Marc , McKenna Timothy P. , Wang Tianyu , Shvets Gennady , Shcherbakov Maxim R. , Wright Logan G. , McMahon Peter L.
Published: September 2024

We introduce a device containing a planar waveguide whose spatial refractive index profile n(x, z) can be programmed in real time. We demonstrate use this device as an optical neural network.
A single-wavelength non-coherent photonic matrix multiplication circuit for optical neural networks
Authors: Tang Rui , Okano Makoto , Toprasertpong Kasidit , Takagi Shinichi , Takenaka Mitsuru
Published: September 2024

We demonstrate a single-wavelength, non-coherent silicon photonic 4×4 matrix multiplication circuit for optical neural networks. An accuracy of 91.7% is obtained using this circuit in a simple neural network for classifying Iris flowers.
Fiber Source of Spectrally Uncorrelated Photon Pairs Based on Intermodal Four-Wave Mixing
Authors: Alexander Kasper , Silva Rodrigo , Koefoed Jacob G. , Rishøj Lars , Rottwitt Karsten
Published: September 2024

Using intermodal four-wave mixing (FWM) in an optical step-index fiber, we demonstrate a process capable of generating photon pairs with low spectral correlations without the need for optical filtering of the FWM sideband.
Control of nonlinear recurrences in optical fibers by fine tuning of gain
Authors: Vanderhaegen Guillaume , Szriftgiser Pascal , Kudlinski Alexandre , Armaroli Andrea , Conforti Matteo , Mussot Arnaud , Trillo Stefano
Published: September 2024

We demonstrate experimentally the influence of forcing on the nonlinear stage of modulational instability in standard optical fibers. Weak linear amplification via Raman gain is tuned to characterize the separatrix crossing behavior between successive recurrences.
Characterization of Two-Dimensional Materials using Ultrafast Spectroscopy and Imaging
Authors: Purz Torben L. , Alfrey Adam , Cao Yuhang , Deng Hui , Cundiff Steven T. , Martin Eric W.
Published: September 2024

We demonstrate a rapid non-contact determination of layer thickness for transition metal dichalcogenides using hyperspectral four-wave mixing imaging, applicable to in-situ growth characterization. We further characterize the material with decay time maps.
Low-voltage Injection-free Electroluminescence Device based on a Monolayer MoSe2/WSe2 Lateral Heterostructure
Authors: Zhong Yutong , Ma Hanyuan , Lv Qian , Li Yongzhuo , Feng Jiabin , Li Chen , Xu Jialu , Yu Chenxin , Lv Ruitao , Ning Cun-Zheng
Published: September 2024

We demonstrate an injection-free electroluminescence device fabricated with a CVD-grown monolayer MoSe2/WSe2 lateral heterostructure. The device is based on impact generation of excitons through an alternating voltage as low as ±1 V at room temperature.
Polarization-Resolved Third-Harmonic Generation in 2-, 3-, and 4-layer Black Phosphorus
Authors: Matias Victor L. , Ribeiro Henrique B. , Heinz Tony , Rosa Henrique G. , de Matos Christiano J. S.
Published: September 2024

We present THG in 2-to-4 layer exfoliated black phosphorus. We observe a change in the polarization-dependent THG pattern when compared to bulk BP, as well as an excitonically increased THG intensity peak for bilayer BP.
Anisotropic and Nonlinear Optical Properties of 2D Transition Metal Carbides and Nitrides (MXenes)
Authors: Simon Jeffrey , Reigle Benjamin , Fruhling Colton , Zhang Danzhen , Ippolito Stefano , Kim Hyunho , Shalaev Vladimir , Gogotsi Yury , Boltasseva Alexandra
Published: September 2024

We report the experimentally retrieved anisotropic optical permittivity of several MXenes which indicate that these materials exhibit a hyperbolic dispersion relationship. Additionally, we describe the thickness dependencies of both linear and nonlinear properties of these MXenes.
Solar Spectroscopy Approaching 10−9 Precision with a Frequency-Modulated Laser Heterodyne Radiometer
Authors: Fredrick Connor , Cole Ryan K. , Parts Winter , Terrien Ryan , Mahadevan Suvrath , Diddams Scott A.
Published: September 2024

We lock a laser to a solar iron line thereby adapting laboratory spectroscopy techniques to thermal light that has traveled 150 million km. This permits frequency tracking of solar dynamics with Doppler precision approaching 1 ppb.
Flexible Data Rate and Power Efficiency Pulse-Position-Modulation Communication with Independent Free-Running Clocks
Authors: Guo Cheng , Essiambre René-Jean , Dacha Sai Kanth , Blanco-Redondo Andrea , Kschischang Frank R. , Banaszek Konrad , Sandoz James D. , Cloonan John , Sayem Ayed A. , Vasilyev Michael
Published: September 2024

Pulse-Position Modulation (PPM) format using independent free-running clocks transmitted optically is demonstrated with PPM orders from 210 to 216, enabling flexible data rate and Photon Information Efficiency (PIE).
Defect mode lasing in a non-Hermitian 1D trivial SSH lattice
Authors: Goudarzi Kiyanoush , Gharajeh Abouzar , Seifollahi Fargol , Ramezani Hamidreza , Gu Qing
Published: September 2024

We experimentally demonstrate single-mode robust lasing in the telecommunication wavelengths. Introducing a defect ring leads to a lower lasing threshold and tunability of the lasing location by adjusting the position of the defect ring.
Hysteresis Behavior of Continuous-Wave External Cavity Quantum Cascade Lasers
Authors: Schundelmeier Jonas , Yang Quankui , Hugger Stefan
Published: September 2024

We investigate hysteresis of an external-cavity-QCL for variations of resonator length and grating angle. Experimental results are compared with two different theoretical models. Simulations suggest that hysteresis is caused by self-stabilization due to mode coupling.
High-Capacity Transmission with Single External Laser Source and Polymer-Based Splitters for Co-Packaged Optics
Authors: Suda Satoshi , Rasel Md Omar Faruk , Kurosu Takayuki , Noriki Akihiro , Nakamura Fumi , Amano Takeru
Published: September 2024

We demonstrated high-capacity optical transmission using a polymer-based 1×4 splitter and a single external laser source (ELS) with an extremely high power of +20 dBm per channel, potentially achieving a bandwidth of 3.2 Tbps.
Charge Separation in Metal-Semiconductor Nanocatalytic Heterojunctions
Authors: Gyawali Sunil , Tirumala Ravi Teja A. , Andiappan Marimuthu , Bristow Alan D.
Published: September 2024

The rate equation associated with recombination dynamics of photoexcited charge carriers in Cu2O and Cu2O/Pd nanocatalysts shows suppressed Auger scattering in Cu2O/Pd possibly due to the photoexcited electron transfer across the heterojunction.
Significant increase of performances of a kHz laser-plasma accelerator using a H2 plasma
Authors: Monzac J. , Smartsev S. , Huijts J. , Rovige L. , Andriyash I. A. , Vernier A. , Kaur J. , Cavagna A. , Cheng Z. , Lopez-Martens R. , Faure J.
Published: September 2024

By using a Hydrogen plasma, we significantly increased the performances of our kHz laser-plasma accelerator. We achieved excellent level of stability both on the spectrum and the spatial profile of the electron beam.
Topological Frequency Combs
Authors: Flower Christopher J. , Mehrabad Mahmoud Jalali , Xu Lida , Moille Gregory , Srinivasan Kartik , Mittal Sunil , Hafezi Mohammad
Published: September 2024

We demonstrate the generation of a novel type of frequency comb, the topological frequency comb, in a lattice of hundreds of ring resonators. Our results bring together the fields of topological photonics and frequency combs.
Long-distance Transmission Using Multi-mode Fibers
Authors: van den Hout Menno
Published: September 2024

Space-division multiplexing through multi-mode fibers has been proposed as a solution for the ever-increasing demand for bandwidth. This invited talk addresses how large-mode-count multi-mode fibers can be used for long-distance optical communication.
Optical-to-microwave phase coherent link at 19th digit accuracy
Authors: Rauf Benjamin , Baldoni Ignacio , Wolferstetter Martin , Fricke Andreas , Fischer Marc , Giunta Michele , Holzwarth Ronald
Published: September 2024

We present a transportable clockwork system capable of porting the optical spectral purity down to the microwave domain at the level of a few parts in 10−19.
Mechanical-Sharing Dual-Comb Fiber Laser for Terahertz Dual-Comb Spectroscopy
Authors: Nakajima Yoshiaki , Yumoto Takumi , Uchiyama Ryusei , Kubota Kousuke , Takeshi Naoki , Yoshioka Takuma , Matsubara Shinchi , Tokizane Yu , Yasui Takeshi
Published: September 2024

We developed a simple and compact terahertz spectroscopy system based on asynchronous optical sampling using a mechanical-sharing dual-comb fiber laser. The streamlined spectroscopy system successfully detected the absorption of airborne water molecules.
Spectral mechanism of multimode fiber-based saturable absorber
Authors: Sulimany Kfir , Halevi Dotan , Gat Omri , Bromberg Yaron
Published: September 2024

Nonlinear multimode interference-based saturable absorbers analysis and designs have traditionally focused on monochromatic nonlinear beam propagation. Our experimental and numerical findings suggest that spectral effects may dictate the absorber’s behavior and enable their control.
Nonlinearities in Tapered Multi Mode Fibers
Authors: Arduin Andrea , Rishøj Lars , Lægsgaard Jesper
Published: September 2024

We demonstrate propagation of higher order modes in fiber tapers with negligible intermodal coupling, enabling wavelength control of dispersive wave generation in a single LP0,m mode around 800nm.
Vector Magnetometry With Spin-1 Manifold of Ultracold 87Rb Atoms
Authors: Manna Goutam , Jaiswal Shubham , Adhikary Pratik , Ghosh Saikat
Published: September 2024

We simultaneously store and retrieve light pulses in the long-lived ground state coherences of 87Rb spin-1 manifold. The retrieved signal from this atomic interferometer can be characterised and used for vector magnetometry with high precision.
A 1.7 nJ 978 nm Core-Pumped All-Polarization-Maintaining Ytterbium-Doped Femtosecond Fiber Laser
Authors: Wang Weijin , Zhou Xiangxiang , Zhou Yue , Xu Kun
Published: September 2024

We report a 978 nm NALM-based all-PM Yb-doped fiber laser. The pulse is compressed to 234 fs with a pulse energy of 1.7 nJ, over three times that of other all-PM 978 nm fiber lasers.
11-GHz SESAM-Modelocked Femtosecond Yb:YLF Laser
Authors: Okuyucu Serdar , Demirbas Umit , Thesinga Jelto , Edelmann Marvin , Pergament Mikhail , Kärtner Franz X.
Published: September 2024

We report the first GHz Yb:YLF laser generating 210 fs long pulses at 40 mW average power output from a low-cost, self-starting, single-mode diode pumped cavity with integrated relative intensity noise <0.45%.
Engineered Coupling Enables Octave-spanning Soliton Microcombs in Thin-film Lithium Niobate
Authors: Song Yunxiang , Hu Yaowen , Zhu Xinrui , Yang Kiyoul , Lončar Marko
Published: September 2024

We present an octave-spanning soliton microcomb in thin-film lithium niobate. The comb is connected between 126 and 252 THz, with repetition rate 491.85 GHz. Engineered coupling suppresses Raman lasing and enhances comb extraction.
Soliton Generation in AlGaAs-On-Insulator Microresonators via Thermal Compensation
Authors: Zhao Yanjing , Ye Chaochao , Liu Yang , Zhou Yueguang , Yvind Kresten , Pu Minhao
Published: September 2024

We employ the thermal compensation technique for Kerr comb generation in an AlGaAs-on-insulator microresonator and demonstrate perfect soliton crystal and multi-soliton states at room temperature.
Suppression of Microcomb Thermorefractive Noise using Kerr Induced Synchronization
Authors: Shandilya Pradyoth , Moille Grégory , Stone Jordan , Javid Usman A. , D’Aguanno Giuseppe , Srinivasan Kartik , Menyuk Curtis R.
Published: September 2024

Thermorefractive fluctuations, due to the small modal volume of on-chip microresonators, is one of the main noise sources in integrated frequency combs. We demonstrate that Kerr-induced synchronization suppresses such noise, regardless of the microresonator’s properties.
Large Magneto-Optical Glass for Ultra-High Power Laser Isolators
Authors: Suzuki Futoshi , Furuyama Tadahito , Sato Fumio , Masuda Noriaki , Kawaguchi Haruki , Yasuhara Ryo , Tokita Shigeki
Published: September 2024

A new magneto-optical glass with suppressed thermally induced depolarization was developed. The glass can be manufactured in large sizes, paving the way for the development of large-diameter isolators suitable for ultra-high power lasers.
A short review and recent upgrades at the THz light source TeraFERMI at the free-electron laser facility FERMI
Authors: Schmidt Johannes , Di Pietro Paola , Winnerl Stephan , Perucchi Andrea
Published: September 2024

The THz light source TeraFERMI generates strong electric fields focusing on research of nonlinear phenomena in condensed and soft matter. We report about THz pulse properties and recent instrumental upgrades now available.
Efficient Photoconductive Switches on GaN for THz Generation
Authors: Uzundal Can , Feng Qixin , Wang Feng
Published: September 2024

We demonstrate efficient generation of THz pulses (>10 pJ and >30% efficiency) in GaN photoconductive switches coupled to a strip-line waveguide. We employ a quadratic electrooptic effect of excitonic origin to probe the THz pulses.
Characterization of Passivation Layer Losses using on-chip Chalcogenide Glass Resonators with Ultra-high Q-factor in the Mid-infrared Region
Authors: Suk Daewon , Ko Kiyoung , Kim Jingyu , Park Sang-Hee Ko , Wang Rongping , Choi Duk-Yong , Lee Hansuek
Published: September 2024

We optically characterize the absorption loss and surface property of nanometer-thin Al2O3 and TiO2 passivation layers using chalcogenide glass-based on-chip resonators with ultra-high Q-factor in the mid-IR region.
n2 Database and New Data on Nonlinear Optical Properties in Long-Wave Infrared
Authors: Polyanskiy Mikhail N. , Pogorelsky Igor V. , Babzien Marcus , Vodopyanov Konstantin L. , Palmer Mark A.
Published: September 2024

We introduce an n2 database within the refractiveindex.info database of optical constants and augment it by measuring nonlinear refraction and absorption at 9.2 µm in materials relevant for high-peak-power long-wave-infrared lasers.
Geiger-mode Single Photon Detection at 2 µm
Authors: Herrera Daniel J. , Dadey Adam A. , March Stephen D. , Bank Seth R. , Campbell Joe C.
Published: September 2024

We report the first 2 µm Geiger-mode single photon counting results using an AlInAsSb SACM avalanche photodiode. Avalanche probabilities greater than 90% were measured at 80 K, corresponding with single photon detection efficiencies of 12.6%.
Fully Integrated Pulse Analyzer Using Silicon Photonics
Authors: Kondo Keisuke , Oshima Hiroki , Hayama Ryo , Sugihara Okihiro
Published: September 2024

We demonstrate a fully integrated pulse analyzer fabricated using silicon photonics. The device consists of an on-chip optical correlator and micro-ring filter. Pulse measurements on a chip with very high sensitivity was demonstrated.
CMOS-compatible metasurfaces integrated with optoelectronic devices: Tuning light-matter interaction at the nanoscale
Authors: Fischer Inga Anita
Published: September 2024

Optical metasurfaces can be utilized to manipulate light properties in ultra-thin layers. We present recent results on integrating metallic and dielectric metasurfaces with optoelectronic devices for refractive index sensing and wavelength-selective photodetection.
Thin film lithium niobate optical phased array for two-dimensional beam steering
Authors: Yue Gongcheng , Li Yang
Published: September 2024

We present a 16-channel thin film lithium niobate optical phased array working at the near-infrared wavelengths. We utilize electro-optic modulation and wavelength tuning to realize beam steering of 24° and 8°, respectively, in two dimensions.
Lithography-free Reconfigurable Integrated Photonics
Authors: Wu Tianwei , Menarini Marco , Gao Zihe , Feng Liang
Published: September 2024

We report an unprecedented lithography-free paradigm for an integrated photonic processor, which establishes remarkable field programmability and functionality from a global perspective, enabling accurate multiply–accumulate operations and in-situ training of optical neural networks.
High Performance In-Line Er-Doped Waveguide Amplifiers Using Room Temperature Sputtered Er:TeO2 Thin Film
Authors: Zhong Yile , Yan Kunlun , Madden Steve
Published: September 2024

Monolithic integrated Er-doped waveguide amplifiers with more than 10 dB net fibre-to-fibre gain under 1480 nm pumping are demonstrated, paving the road for room temperature sputtered Er:TeO2 thin film to CMOS-compatible integrated photonics.
Backscattering in Antiresonant Hollow Core Fibers: from Air Scattering to Surface Scattering
Authors: Wei Xuhao , Wheeler Natalie V. , Gorajoobi Shahab Bakhtiari , Sandoghchi Seyed Reza , Poletti Francesco , Slavík Radan
Published: September 2024

We use a custom-developed high-sensitivity optical time domain reflectometer to monitor evacuation of an antiresonant hollow core fiber. While initially backscattering from the air-filled core is dominant, as gas pressure reduces, surface-related backscattering is measured.
Artificial Neural Network Assisted Hollow-Core Antiresonant Fiber Design for Supercontinuum Generation
Authors: Shih Mulaine , Nelson-Quillin Heidi D. , Garrett Kerry E. , Coyle Eleanor , Secondo Ray , Keyser Christian K. , Mills Matthew S. , Harper Eric
Published: September 2024

We investigated the nonlinear Raman-Kerr effect of methane in hollow core antiresonant fibers and used ANNs to correlate fiber geometry to simulated spectra, allowing for the rapid design of supercontinuum-generating optical fibers.
Electrical Control of Spin-Polarized Exciton Polaritons in Perovskite Metasurfaces
Authors: Wang Yutao , Adamo Giorgio , Ha Son Tung , Tian Jingyi , Soci Cesare
Published: September 2024

We report spin-polarized electroluminescence emission from exciton polaritons in light-emitting perovskite metatransistors with broken C2 symmetry. The spin state of the polariton can be electrically selected by controlling charge injection into the device.
Phase-Change-Material Trimmed, Fixed-Wavelength Slow Wave Michelson Interferometer Sensors for Low-Cost Chem-Bio Sensing Applications
Authors: Shen Jianhao , Perera Asela , Donnelly Daniel , Chakravarty Swapnajit
Published: September 2024

We experimentally demonstrated compact Michelson interferometer sensors with slow wave enhanced phase sensitivity 277,750 rad/RIU-cm. We overcome fabrication imperfections by actively tuning interferometer fringes using phase change materials for fixed wavelength low-cost chem-bio sensors on-chip.
High Performance Folded Thin-Film Lithium Niobate Modulators on Quartz Substrate Fabricated by Photolithography
Authors: Tang Yongqian , Li Heng , Chen Quanan , Dai Xiangyang , Lu Qiaoyin , Lu Mingzhi , Guo Weihua
Published: September 2024

We report a high-performance folded thin-film lithium-niobate modulator through photolithography. The fabricated modulator exhibits the V
π
of 1.85V and extinction-ratio ~25dB under P
π
~17mW with the smooth EE response and EO bandwidth higher than 67GHz.
Pump-controlled mode-locking switching in an all-polarization-maintaining fiber laser
Authors: Dai Maolin , Liu Bowen , Ye Guanyu , Ma Yifan , Yamaguchi Naoki , Shirahata Takuma , Set Sze Yun , Yamashita Shinji
Published: September 2024

We demonstrate the pump-controlled mode-locking switching in an all-polarization-maintaining, CNT-mode-locked fiber laser. By simply changing the injected pump power, the mode-locking can be switched between two wavelengths, or built up at both wavelengths.
Femtosecond Pulse Characterization using Nanophotonic Parametric Amplification
Authors: Zacharias Thomas , Gray Robert , Williams James , Ledezma Luis , Marandi Alireza
Published: September 2024

We introduce and experimentally demonstrate a FROG-based ultrashort pulse characterization technique using nanophotonic parametric amplification as a crucial tool for ultrafast nanophotonic circuits, and measure sub-50-femtosecond pulses.
TIPTOE Laser Waveform Sampling with AlGaN Photodiode for Fast Scanning Measurements
Authors: Lantigua Christopher , Truong Tran-Chau , Kincaid Chelsea , Khatri Dipendra , Mushtaq Aamir , Chini Michael
Published: September 2024

Multiphoton excitation in AlGaN provides a sub-cycle gate capable of sampling few-cycle waveforms in the near-infrared. We demonstrate near-infrared laser waveform sampling using an AlGaN photodiode in a scanning TIPTOE geometry.
Realization of a Compact Photoelectric Platform for Optical Convolution Processing
Authors: Ning Shupeng , Zhu Hanqing , Feng Chenghao , Uselton Christian , Gu Jiaqi , Tang Rongxing , Pan David Z. , Chen Ray T.
Published: September 2024

We presents a hardware-efficient o ptical c omputing a rchitecture f or structured neural networks (OSNNs). The performance of our neural chip was validated on a photonic-electronic testing platform experimentally, demonstrating reduced optical component utilization and small deviation.
Active nonlinear mid-infrared photonics
Authors: Kazakov Dmitry , Letsou Theodore P. , Piccardo Marco , Columbo Lorenzo , Brambilla Massimo , Prati Franco , Ratra Pawan , Dal Cin Sandro , Beiser Maximilian , Opacak Nikola , Lugiato Luigi A. , Pushkarsky Michael , Caffey David , Day Timothy , Schwarz Benedikt , Capasso Federico
Published: September 2024

Our DC-driven semiconductor laser chip generates one picosecond solitons at 8.3 µm, using active nonlinear resonators. It integrates all components (pump, resonator, filter), enabling turnkey, background-free bright pulse generation with immediate applications in nonlinear mid-infrared photonics.
Sub-Terahertz field-resolved detection using a thin-film lithium niobate platform
Authors: Tomasino Alessandro , Shams-Ansari Amirhassan , Lončar Marko , Benea-Chelmus Ileana-Cristina
Published: September 2024

We present a new class of thin-film lithium niobate integrated detectors, featuring a millimeter-long sensitive area and capable of performing the off-focus field-resolved reconstruction of sub-terahertz transients.
Ultrafast Mid-Infrared Pulse Generation by Band-Edge-Mediated Four-Wave Mixing in Gas-Filled Antiresonant Hollow-Core Fiber
Authors: Bai Ruhai , Gavara Trivikramarao , Wang Yuxi , Xiong Daiqi , Deng Ang , Hean Kevin , Ji Shuaihao , Wu Xu , Chang Wonkeun
Published: September 2024

We demonstrate the generation of ultrashort pulses at 4.57 µm in the mid-infrared region. This is achieved through band-edge-induced four-wave mixing in a gas-filled antiresonant hollow-core fiber when the system is pumped at 2 µm.
Stable supercontinuum generation in water at high repetition rates
Authors: Vanderhaegen A. , Keller K. R. , Rojas-Aedo R. , Ludwig M. , Brida D.
Published: September 2024

Water is an effective nonlinear medium for supercontinuum (SC) generation. We demonstrate high SC signal stability through precise liquid velocity control and superior spectral broadening compared to established solids at multi-kilohertz (kHz) repetition rates.
Silicon Photonic Physical Unclonable Functions Based on an Actively-tuned Waveguide Array
Authors: Yiu Gow-Zin , Hsu Chung-Yu , Sun Chia-Heng , Chen Pai-Yen , Chang You-Chia
Published: September 2024

We demonstrate experimentally physical unclonable functions based on an 8-channel waveguide array with embedded phase shifters to actively generate challenge-response pairs. We generate 128 challenges and show unclonability between 6 copies on the same wafer.
Self-injection-locking FMCW laser source on the lithium niobate platform
Authors: Li Xinhang , Cai Minglu , Xu Ruiyang , Fan Yihao , Liu Chuxin , Guo Yuyao , E Siyu , Jin Minhui , Wu Kan , Li Yu , Lu Liangjun , Chen Jianping , Zhou Linjie
Published: September 2024

We demonstrate a hybrid-integrated linear-chirp frequency-modulated continuous wave laser based on self-injection locking to a high-Q lithium niobate multimode microring resonator with a 1 kHz linewidth and 1 MHz modulation speed.
Observation of fundamental charge noise in electro-optic photonic integrated circuits
Authors: Zhang Junyin , Li Zihan , Riemensberger Johann , Lihachev Grigory , Huang Guanhao , Kippenberg Tobias J.
Published: September 2024

We observed a novel 1/f-type frequency noise in Lithium Niobate and Lithium Tantalate microresonators, distinct from thermorefractive noise and originating from thermodynamic charge fluctuations. Our results establish electrical Johnson-Nyquist noise as the fundamental refractive noise limit for Pockels integrated photonics.
Fast and Generalizable Light Field Propagation Modelling in Optical Fiber by Physics-Informed Neural Operator
Authors: Luo Xiao , Zhang Min , Song Yuchen , Jiang Xiaotian , Wang Danshi
Published: September 2024

An unsupervised physics-informed neural operator is proposed for fast light field propagation modelling in optical fiber of different configurations. The learned PHE-operator obtains accuracy results and shows generalizable performance with lower complexity and running time.
Efficient Modeling of Photonic Lanterns: A Taper Reference Frame Approach
Authors: Tschernig Konrad , Bhargava Swati , Cruz-Delgado Daniel , Eikenberry Stephen , Leon-Saval Sergio , Amezcua-Correa Rodrigo , Bandres Miguel A.
Published: September 2024

We develop a method to efficiently model light propagation in photonic lanterns. By working in the taper reference frame, our model avoids resizing the tapered potential and preserves resolution in the region of interest.
High-Speed Quantum Noise Stream Cipher System Enabled by Optical Fiber-based Encryption and Low-Complexity Digital Decryption
Authors: Matsumoto Ryosuke , Kodama Takahiro
Published: September 2024

We propose secure digital-coherent system utilizing high-speed encryption/decryption through fiber and simplified digital back propagation (DBP). Negligible penalty is observed by detecting 64-Gbaud 216-level PSK-like chipper signals through a 5-stage DBP with precise fiber parameters.