bluuebunny/crossref_metadata_2025 huggingface dataset:
Electron Correlations and Memory Effects in High Harmonic Generation from Perovskite BiFeO3
Authors: Alam Didarul , Chini Michael , Turkowski Volodymyr
Published: July 2023

We analyze the effects of electron correlations and memory in high harmonic generation from BiFeO3 using Dynamical Mean-Field Theory and Time-Dependent Density-Functional Theory. We observe both effects lead to an extension of the harmonic cutoff.
Impedance Peaking in Silicon Traveling Wave Mach-Zehnder Modulators
Authors: Mohammadi Abdolkhalegh , Levasseur Simon , Shi Wei
Published: July 2023

We experimentally study silicon photonic traveling-wave modulators with different on-chip terminating resistors for impedance peaking. A 63.5 GHz bandwidth is achieved for a single-segment silicon modulator.
Silicon four-quadrant photodetector working at the wavelength of 1550 nm
Authors: Wang Zhao , Zou Kai , Meng Yun , Hu Xiaolong
Published: July 2023

We fabricated a silicon four-quadrant photodetector that uses sub-bandgap optical absorption and operates at the 1550-nm telecommunication and the visible wavelengths, and applied it to the measurements of beam positions and deflection angles.
A Machine Learning-Based Model for Characterizing Stationary-and-Dynamic Behavior of VCSEL
Authors: Khan Ihtesham , Marchisio Andrea , Tunesi Lorenzo , Masood Muhammad Umar , Ghillino Enrico , Curri Vittorio , Carena Andrea , Bardella Paolo
Published: July 2023

We propose a machine learning-based framework to acquire parameters that define stationary-and-dynamic behavior of VCSEL. Circuit-level simulations of light-current and S21 are used to train the model. In terms of relative-prediction-error promising results are achieved.
Topology optimization of a broadband and fabrication-friendly polarization splitter-rotator on silicon platform
Authors: Xu Jiefeng , Wang Xi , Wu Yifan , Li Yihang , Wang Lei , He Zhixue , Xiao Xi , Xu Ke
Published: July 2023

A fabrication-friendly polarization splitter-rotator is designed by particle swarm optimization. The device has a short length of 26.62 µm and <1 dB loss with 127 nm optical bandwidth.
Two-Step Hot Electron Decay in Ti1-xAlxN Films
Authors: Ho I Hong , Chang Ching-Wen , Gwo Shangjr , Ahn Hyeyoung
Published: July 2023

We report two-step electron-phonon interaction process in MBE-grown Ti1-xAlxN thin films. Strong and ultrafast (<0.2 ps) as well as long-living (≥1 ns) electron-phonon interaction is observed for Ti-rich Ti1-xAlxN in the whole visible spectral range.
Novel structural temperature sensor base on microfiber coil resonator modified by MXene Nb2C
Authors: Wu Q. , Xiao Y. , Zhao G. , Ran J. , Zhang M.
Published: July 2023

We report a spatial structure all-fiber temperature sensor based on MXene Nb2C modified microfiber coil resonator with a free spectral range of 0.391 nm and a sensitivity of 123.2 pm/°C. We highlight the potential of space-structured all-fiber devices in the field of sensors.
Realization of bound states in the continuum in anti-PT-symmetric optical systems: a proposal and analysis
Authors: Zhang Jiawei , Feng Ziyao , Sun Xiankai
Published: July 2023

We propose a parallel-cascaded-resonator system where bound states in the continuum and anti-PT symmetry can be achieved simultaneously under the condition of the phase shift between the adjacent resonators being an integer multiple of π.
MMI-Based Power Combiner for Trident Edge Couplers on Thin Film Lithium Niobate for Nonlinear Applications
Authors: Gerguis John O. , Chang Gregory , Abdelrahman Mohamed I. , Qi Minghao
Published: July 2023

We present an MMI-based power combiner that can be used with trident edge couplers to achieve high efficiency for both the fundamental and second harmonics in on-chip nonlinear processes which span a large bandwidth.
Carrier Injection Micro-ring Modulator with a High Drop Signal ON-OFF Ratio Fabricated in AIM Photonics Technology
Authors: Uddin M. Rakib , Dikshit Amit , Hossain M. Jobayer , Timalsina Yukta , Khatijah Siti , Mann Javery , Fahrenkopf Nicholas M. , Baiocco Christopher , Harame David L.
Published: July 2023

A carrier injection micro-ring modulator with a high drop signal ON-OFF ratio of 19 dB and a large wavelength modulation of 2.5nm at 1.1V is demonstrated.
Equilibrium dynamics of multiple interacting waves with signed analogous masses
Authors: Zhang Ping , Guo Qing , Wu Hao , Gong Zeyu , Nie Binbin , Hu Yi , Chen Zhigang , Xu Jingjun
Published: July 2023

We report the first experimental realization of equilibrium dynamics of multiple interacting waves with signed analogous masses in optical fiber. The mutually confined pulses show a robust feature upon certain collisions.
Ultrafast Pump-Probe Nano-Imaging with Far-From-Equilibrium Excitation
Authors: Wilcken Roland , Chavez Emily K. , Esses Branden L. , Nishida Jun , Johnson Samuel C. , Raschke Markus B.
Published: July 2023

Heterodyne vis-pump IR-probe nano-imaging is developed to reveal, with simultaneous spatial, spectral, and temporal resolutions, solar-cell relevant polaron dynamics in perovskites and thermal transport across 2D heterointerfaces in phonon-polariton nano-thermometry.
Non-local optical response in quantum materials
Authors: Zhang Ding , Naik Gururaj
Published: July 2023

The optical response of quantum materials under low-intensity illumination is interesting and remains unexplored. We had shown nonlinear effects in 1T-TaS2, a charge-ordered material. Here, we extend our model to include nonlocal optical effects.
Spectral Phase Dispersion Measurements in Frequency Comb Generating Linear Microresonators
Authors: Kerber Grace , Puckett Matthew , Wu Jianfeng , Nelson Karl D. , Courtright Logan , Young Joshua T. , Shandilya Pradyoth H. , Hoyt Chad , Hu Jonathan , Menyuk Curtis , Cundiff Steven
Published: July 2023

We present measurements of the spectral phase in a waveguide Bragg reflector using a Michelson interferometer. When compared with theory, these measurements support the dispersion engineering in novel linear Bragg grating frequency comb microresonators.
Optimizing the enhancement of nonlinear effects with spectrally periodic solitons
Authors: Lourdesamy Joshua P. , Widjaja Justin , Hawi Georgio , Kesarwani Sharvil , Runge Antoine F. J. , de Sterke C. Martijn
Published: July 2023

We study the enhancement of the nonlinear effects through linear dispersion engineering. The amplitudes of the J frequency components follow a simple relation, from which we can derive that the enhancement factor increases as 0.687J.
Numerical Studies of an Optical Parametric Amplifier Seeded by a Fiber-Amplified Pulse
Authors: Lu Brittany , Wernsing Keith , Carbajo Sergio
Published: July 2023

We report on simulations in 2D space and time of a tunable optical parametric amplifier in Type-I BBO that is seeded by a broad spectrum, high spectral energy density, fiber-amplified pulse.
Topologically Protected Entangled Biphoton States in High-order Topological Insulators
Authors: Hu Chenhua , Jiang Zhen , Xi Chaoxiang , Wang Hui , He Guangqiang
Published: July 2023

We demonstrate different structures of high-order topological insulators supporting topologically protected biphoton states and theoretically explained that the photon pairs generated from the four-wave mixing (FWM) process are continuous frequency entangled.
Security Flaws From Time-Varying Encoding in High Speed MDI QKD
Authors: Gnanapandithan Amita , Lo Hoi-Kwong , Qian Li
Published: July 2023

Electro-optic phase modulators are commonly used for polarization and phase encoding in quantum key distribution. Here, a novel state preparation flaw which arises during high speed electro-optic phase modulation is identified and characterized. The impact of this state preparation flaw on the secure key rate is quantified.
3D meta-optics: a platform for wavefront shaping and optical sensing
Authors: Ren Haoran
Published: July 2023

Ultrathin meta-optics has transformed recent photonic design. I will highlight a new 3D meta-optics platform with unleashed height degree of freedom for both wavefront engineering and ultrahigh-sensitivity molecular sensing. In this talk, I will discuss the design, 3D laser nanoprinting, and applications of various 3D metasurfaces.
2D THz Measurement of Magnon-Phonon Coupling in Multiferroic BiFeO3
Authors: Rader Claire , Nielson Megan F. , Knighton Brittany E. , Alejandro Aldair , Johnson Jeremy A.
Published: July 2023

With 2D THz spectroscopy we directly measure magnon-phonon coupling in multiferroic BiFeO3. Using theoretical modeling, we are able to decipher different types of coupling that appear in 2D spectral features.
Photon Pair Generation in OAM Modes at 780 and 1550 nm via Spontaneous Intermodal Four Wave Mixing
Authors: Shahar Daniel I. , Liu Xiao , Kim Dong Beom , Lorenz Virginia O. , Ramachandran Siddharth
Published: July 2023

We demonstrate the generation of photon pairs at ~780 and ~1550 nm with a coincidence-to-accidental ratio of ~3200 via spontaneous intermodal four wave mixing mediated by a ring-core fiber stably guiding orbital angular momentum modes.
Experimental demonstration of multiparty reference-frame-independent QKD
Authors: Lee Donghwa , Shin Kyujin , Kim Yosep , Lim Hyang-Tag , Kim Yong-Su
Published: July 2023

We report that RFI-QKD protocol can be extended to multiparty system using Greenberger-Horne-Zeilinger (GHZ) state. We derive the asymptotic key rate and perform proof-of-principle experiment to verify the feasibility of secure quantum network.
Energy-time entangled and Einstein-Podolsky-Rosen steerable large-alphabet quantum key distribution
Authors: Chang Kai-Chi , Sarihan Murat Can , Cheng Xiang , Wong Chee Wei
Published: July 2023

We experimentally demonstrated the violation of energy-time entanglement and Einstein-Podolsky-Rosen steering inequality, toward high-dimensional quantum key distribution with secure photon information efficiency of 3.68 bits/coincidences, and secure key rate of 1.77 Mbits/s.
A monolithic bulk ppKTP cavity for quantum frequency conversion from 637 nm to telecom wavelength
Authors: Mann Felix , Gewers Felipe , Chrzanowski Helen M. , Ramelow Sven
Published: July 2023

We demonstrate an efficient low-noise quantum f requency c onverter based on a thermally self-stabilizing monolithic bulk ppKTP cavity for the conversion of single photons from nitrogen-vacancy centers in diamond to telecommunication wavelength.
PT-symmetric AlGaAs Coupled DFB Lasers for Tunable THz Wave Generation
Authors: Liu Yuzhou G. N. , Zhao Yifan , Santis Christos T. , Jarrahi Mona , Khajavikhan Mercedeh
Published: July 2023

We report the design and fabrication of a PT-symmetric AlGaAs coupled DFB laser for THz beat frequency generation. The THz beat signal can be tuned by varying the gain contrast between the two DFB lasers.
Nanoscale Optical Mode Imaging and Spectroscopy of Dielectric Metasurfaces Based on the Bound State in Continuum
Authors: Boehm Alex , Gennaro Sylvain D. , Doiron Chloe F. , Beechem Thomas E. , Sinclair Michael B. , Brener Igal , Sarma Raktim , Ohta Taisuke
Published: July 2023

We use photoemission electron microscopy for hyperspectral imaging of electromagnetic field localization in broken-symmetry III-V semiconductor metasurfaces with high selectivity to characterize complex resonant mode profiles, determine coherent interaction lengths, and corroborate FDTD simulations.
Coherent Dynamics of the Swing-up Excitation Technique
Authors: Kim Sang Kyu , Boos Katarina , Sbresny Friedrich , Kremser Malte , Riedl Hubert , Bopp Frederik , Rauhaus William , Scaparra Bianca , Jöns Klaus D. , Finley Jonathan J. , Hanschke Lukas , Müller Kai
Published: July 2023

We demonstrate the coherent character of the recently proposed swing-up excitation using two red-detuned pulses with an InGaAs quantum dot by exploring the multidimensional parameter-space and investigate the quality of photons generated using this scheme.
The interplay of disorder and nonlinearity in topological slow-light waveguides
Authors: Karcher Jonas F. , Gopalakrishnan Sarang , Rechtsman Mikael C.
Published: July 2023

We study the robustness of a photonic Chern insulator (in both linear and nonlinear regimes) supporting multiple-winding slow light modes over a broad range of frequencies against fabrication disorder and nonlinearity by numerics and analytics.
Topological Energy Pumping in Floquet Synthetic Dimensions with a Driven-Dissipative Photonic Molecule
Authors: Sridhar Sashank Kaushik , Ghosh Sayan , Dutt Avik
Published: July 2023

We introduce topological energy pumping in a quasiperiodically-modulated photonic molecule with two Floquet synthetic dimensions. We predict experimental signatures of topology that are enhanced by the driven-dissipative nature of our half-BHZ-model implementation.
Broadband Quantum Memory in Atomic Barium Vapor with 95% Storage Efficiency
Authors: Shinbrough Kai , Hunt Benjamin D. , Park Sehyun , Oolman Kathleen , Loveridge Tegan , Eden J. Gary , Lorenz Virginia O.
Published: July 2023

We measure 95.6±0.3% storage efficiency of ultrafast photons in a collisionally broadened barium vapor quantum memory. We measure 31±1% total efficiency, limited by control field power, and a 0.515(6) ns lifetime, limited by motional dephasing.
Higher-order topological corner states in a distorted photonic Kagome lattice
Authors: Zhong Qi , Liang Yongsheng , Xiong Jianqi , Song Limin , Hou Fucheng , Tang Liqin , Song Daohong , Chen Zhigang
Published: July 2023

We experimentally demonstrate photonic higher-order topological corner states in a C6- symmetric lattice of “inverse star of David” shape - the distorted Kagome lattice. Topological nature of such corner states is discussed from the fractional corner anomaly.
Pseudospin evolution and vortex transmutation due to topological singularity mapping in photonic graphene
Authors: Lei Sihong , Xia Shiqi , Song Daohong , Chen Zhigang
Published: July 2023

The charge of converted vortices from topological singularity mapping is usually invariant during propagation. Here, we demonstrate pseudospin evolution and periodic vortex transmutation by proper excitation of a ring spectrum in the Dirac cone.
A Gaussian Boson Sampling for Graph Computation
Authors: Zhu H. H. , Chen H. S. , Li S. Y. , Chen T. , Cai H. , Chin L. P. , Zhang X. D. , Liu A. Q.
Published: July 2023

A gaussian boson sampling microprocessor for graph applications, such as solving task assignment, Boolean satisfiability, graph clique, max cut, vertex cover problems, is demonstrated and achieved. It manifests the ability of photonic quantum computing to realize practical applications for conventionally intractable computations.
Extreme Ultraviolet Metaoptics enabled by Vacuum Guiding
Authors: Ossiander Marcus , Hampel Hana K. , Meretska Maryna L. , Lim Soon Wei D. , Knefz Nico , Jauk Thomas , Schultze Martin , Capasso Federico
Published: July 2023

We experimentally demonstrate a dielectric metalens operating at 50 nm wavelength by leveraging that holes in a Silicon membrane guide extreme ultraviolet light. A knife edge measurement shows focusing down to 1.7 times the diffraction limit.
Experimental Investigation of a Graphene-Inserted Metal-Slot-Added Waveguide Electroabsorption Modulator
Authors: Seo Jihoon , Lee Jungwoo , Kwon Min-Suk
Published: July 2023

We experimentally investigate an intensity modulator based on a graphene-inserted metal-slot-added waveguide. We demonstrate that the modulator has a large extinction ratio of 3.92 dB when the waveguide is only 5 μm long.
Temporal trapping: an all-optical route to strong coupling and quantum information processing
Authors: Yanagimoto Ryotatsu , Ng Edwin , Jankowski Marc , Mabuchi Hideo , Hamerly Ryan
Published: July 2023

We propose a novel confinement method of photons, temporal trapping, to circumvent the tradeoff between optical confinement and loss in nonlinear photonics, showing a potential route to all-optical strong coupling and deterministic optical quantum computation.
Non-Hermitian Topologically Enhanced Sensing
Authors: Parto Midya , Leefmans Christian , Williams James , Marandi Alireza
Published: July 2023

We experimentally demonstrate enhanced sensitivities within non-Hermitian topological lattices realized in a dissipatively-coupled network of time-multiplexed resonators. Our demonstration paves the way for realizing optical sensors with unprecedented sensitivities using notions of non-Hermiticity and topology.
High-speed plasmonic ITO modulators
Authors: Thomaschewski Martin , Gui Yaliang , Patil Chandraman , Wang Hao , Meng Jiawei , Dalir Hamed , Sorger Volker J.
Published: July 2023

Electro-optic modulators are critical building blocks for many signal processing systems which adhere to requirements given by both electrical and optical constraints. We present recently developed nanophotonic electro-optic devices enabling the next generation of electro-optic modulators featuring a significantly improved device performance regarding modulation efficiency (VπL < 1 Vmm), device footprint (< 1 mm2) and bandwidth (> 100 GHz). These novel high-performance nanophotonic electro-optic modulators and switches are based on transparent conducting oxides (ITO) which provide the critical material properties for practical deployment in future electro-optic modulation applications.
Single-photon path entanglement based on integrated silicon photonics
Authors: Zhang Gong , Wang Chao , Goh Koon Tong , Ng Si Qi , Ho Raymond , Semenenko Henry , Srinivasan Srinivasan Ashwyn , Wang Haibo , Chen Yue , Haw Jing Yan , Gong Xiao , Van Campenhout Joris , -W. Lim Charles C.
Published: July 2023

A silicon photonic platform with high-speed single-photon entanglement generation and detection is demonstrated using decoy state source and homodyne detection. A CHSH Bell violation test is performed on-chip, showing a violation lower bound of 2.59.
Backaction Evasion in Optical Lever Detection
Authors: Hao Shan , Purdy T. P.
Published: July 2023

We experimentally and theoretically investigate how measurement backaction from optical force noise can be evaded in an optical lever detection system probing a high Q membrane mechanical resonator.
Overcoming Spectral Diffusion for Enhanced Spin-Photon Entanglement using NV Defect Centers in Diamond Nanostructures
Authors: Orphal-Kobin Laura , Unterguggenberger Kilian , Pregnolato Tommaso , Kemf Natalia , Matalla Mathias , Unger Ralph-Stephan , Ostermay Ina , Pieplow Gregor , Schröder Tim
Published: July 2023

Optically coherent NV defect centers in diamond nanostructures are demonstrated using a combination of methods that mitigate spectral diffusion, including sample choice, fabrication, and experimental control. Entanglement rates enhanced by orders of magnitude are proposed.
Two-photon emission and correlations from a superlattice-based superconducting light-emitting diode
Authors: Bouscher Shlomi , Panna Dmitry , Balasubramanian Krishna , Jacovi Ronen , Kumar Ankit , Schneider Christian , Höfling Sven , Hayat Alex
Published: July 2023

We demonstrate evidence of two-photon emission and photon pair correlations, resulting from injected Cooper-pairs in superconductor-semiconductor structures. Such structures can be utilized for multiple applications including enhanced two-photon gain, electrically-driven entangled-photon generation and Bell-state analyzers.
Raman enhancement induced by localization of light (TiO2@Silica plus silica nanoparticles)
Authors: Dipold Jessica , Wetter Niklaus U. , Freitas Anderson Z. , Marques Francisco C. , Dogariu Aristide , Jiménez-Villar Ernesto
Published: July 2023

Strong enhancement of the Raman signal is observed in ethanol suspension of TiO2@Silica, being stronger as the TiO2@Silica filling fraction is increased above threshold, and when silica nanoparticles are added.
Discovery of a Graphene Sibling: The Photonic Topological Quadratic-Node Semimetal
Authors: Gao Zihe , Zhao Haoqi , Wu Tianwei , Feng Xilin , Zhang Zhifeng , Qiao Xingdu , Chiu Ching-Kai , Feng Liang
Published: July 2023

We report the experimental discovery of the topological quadratic-node semimetal in a photonic microring lattice with a robust second-order nodal point at the Brillouin zone center and two Dirac points at the Brillouin zone boundary.
Inter-vortex forward Brillouin scattering by chiral flexural phonons in twisted photonic crystal fibre
Authors: Zeng Xinglin , Russell Philip St.J. , Geilen Andreas , Becker Steven , Stiller Birgit
Published: July 2023

We report forward stimulated Brillouin scattering between orthogonal circularly polarized vortex modes in chiral photonic crystal fibre. The interaction is mediated by cork-screw-like flexural phonons, which provide both linear and orbital angular momentum.
Fundamental Limits to Enhancing the Local Density of States Through Nanostructuring
Authors: Chao Pengning , Defo Rodrick Kuate , Molesky Sean , Rodriguez Alejandro
Published: July 2023

We analyze bounds to the electromagnetic local density of states achievable via material structuring, deriving novel results including finite bound saturation in the infinite susceptibility limit and sub-linear bandwidth scaling for lossy materials.
Framework of Free-Electron Quantum Optics Using Photonic Integrated Circuits
Authors: Huang Guanhao , Engelsen Nils J. , Kfir Ofer , Ropers Claus , Kippenberg Tobias J.
Published: July 2023

We develop a framework of using photonic integrated circuits for free-electron quantum optics applications. We formulate the interaction using a three-dimensional QED quantization procedure, and discuss a few fundamental limitations and specific application scenarios.
Fermi edge singularity in neutral cold electron-hole system
Authors: Choksy D.J. , Szwed E.A. , Butov L.V. , Baldwin K.W. , Pfeiffer L.N.
Published: July 2023

We studied the Fermi edge singularity due to Cooper-pair-like excitons at the Fermi energy in the photoluminescence spectra of neutral dense ultracold electron-hole plasma and a crossover from BEC to BCS-like exciton condensate with density.
An Explicit Formula for Electron-hole Recollisions by Extreme Tailoring of Feynman Path Integrals
Authors: Wu Qile , Sherwin Mark. S.
Published: July 2023

An explicit formula is derived for analysis of high-order sideband generation in a two-band model. We show the possibility of extracting information on band structures and dephasing rates from sideband signals with simple algebraic calculations.
A quantum-bit encoding converter for quantum interconnects
Authors: Asenbeck Beate Elisabeth , Darras Tom , Guccione Giovanni , Cavailies Adrien , Le Jeannic Hanna , Laurat Julien
Published: July 2023

Here we demonstrate the conversion of quantum information between optical discrete- and continuous-variable qubits. We certify the protocol with fidelities exceeding the classical limit. Our result demonstrates an essential tool for enabling interconnected quantum architectures.
Single extracellular particle trapping with ultra-low heat generation using optical anapoles
Authors: Hong Ikjun , Hong Chuchuan , Ndukaife Justus C.
Published: July 2023

We experimentally demonstrate the trapping of nanoscale supermeres using a nonradiating anapole mode. All-dielectric anapole improves electric field enhancement with negligible heat dissipation, allowing low-power near-field trapping.
Smart Snapshot spectropolarimetric imaging enabled by optical metasurfaces and deep learning
Authors: Zhang Lidan , Zhou Chen , Ding Yimin , Ahn Hyunju , Chang Shengyuan , Duan Yao , Chen Xi , Rahman Md Tarek , Liu Zhiwen , Ni Xingjie
Published: July 2023

We present broadband full-stokes spectropolarimetry using a chiral metasurface, which can retrieve spatially distributed wavelength information and full-stokes polarization states in a single shot.
Dispersion control with integrated plasmonic metasurfaces
Authors: Geromel René , Georgi Philip , Protte Maximilian , Bartley Tim , Huang Lingling , Zentgraf Thomas
Published: July 2023

We present a miniaturized pulse shaping device that creates an arbitrary dispersion through the interaction of multiple metasurfaces on less than 2 mm3 volume. For this, a metalens and a grating-metasurface between two silver mirrors are fabricated. The grating contains further phase information to achieve the device's pulse shaping functionality.
Direct observation of dynamics of photonic bound states
Authors: Javadi Alisa , Tomm Natasha , Mahmoodian Sahand , Antoniadis Nadia O. , Schott Rüdiger , Valentin Sascha R. , Wieck Andreas D. , Ludwig Arne , Warburton Richard J.
Published: July 2023

We observe strong interaction between individual optical photons mediated by a single quantum dot. The nonlinear interaction results in dispersion for single-photon states and two-photon states.
Nonperturbative carrier generation and symmetry reduction in bismuth by intense terahertz excitation
Authors: Runge Matthias , Ghalgaoui Ahmed , Gonzalez-Vallejo Isabel , Thiemann Fabian , Hoegen Michael Horn-von , Reimann Klaus , Woerner Michael , Elsaesser Thomas
Published: July 2023

The semimetal bismuth is studied by two-dimensional terahertz (2D-THz) spectroscopy in the nonperturbative regime. We observe and separate different components of the nonlinear THz response, including high harmonic generation and pump-probe signals pointing to anisotropic transient carrier distributions and phonon backfolding at reduced symmetry.
Dissipative light bullet attractor in a passive coherently driven multimode Kerr cavity
Authors: Sun Y. , Parra-Rivas P. , Milián C. , Kartashov Y. V. , Ferraro M. , Mangini F. , Jauberteau R. , Talenti F. R. , Wabnitz S.
Published: July 2023

We show the existence of stable light bullets and breathers in a coherently driven, passive multimode Kerr cavity with a three-dimensional potential. Bullet stabilisation is possible due to the temporal component of the potential.
Creating Single Color Centers in Nanodiamonds with Ion Implantation
Authors: Xu Xiaohui , Martin Zachariah O. , Titze Michael , Wang Yongqiang , Sychev Demid , Henshaw Jacob , Lagutchev Alexei S. , Htoon Han , Bielejec Ed , Bogdanov Simeon , Shalaev Vladimir M. , Boltasseva Alexandra
Published: July 2023

We report the first demonstration of single silicon vacancy center creation in 20 nm nanodiamonds using silicon ion implantation combined with thermal annealing. Room-temperature single photon emission with linewidth below 10 nm is observed.
Generalized Energy Conservation Relation in a Space-Time Varying Medium
Authors: Zhang Junchi , Donaldson William R. , Agrawal Govind P.
Published: July 2023

A generalized form of energy conservation relation is derived for a space-time varying medium. We use this relation to discuss the condition under which parametric gain can exist in such a medium.
Nonlinear Propagation of High-Intensity Pulsed Light: First-principles Calculations
Authors: Yamada Atsushi , Yamada Shunsuke , Yabana Kazuhiro
Published: July 2023

Light propagation of high-intensity pulsed light is calculated by first-principles computational method based on time-dependent density functional theory. Transition of optical response at surface with light intensity, from linear response to plasma reflection, is investigated.
Distributed phase sensing using two-mode squeezed states in a truncated SU(1,1) interferometer
Authors: Hong Seongjin , Feldman Matthew A. , Marvinney Claire E. , Febbraro Michael , Marino Alberto M. , Pooser Raphael C.
Published: July 2023

We demonstrate distributed phase sensing with a truncated SU(1,1) interferometer through the measurement of a linear combination of two phases distributed between the two beams of a two-mode squeezed state. We theoretically analyze the sensitivity enhancement with respect to the corresponding classical strategy and experimentally demonstrate a 2 dB quantum noise reduction in the measurement of a linear combination of two phases.
Two-frequency pulse compounds in waveguides with single zero-dispersion and zero-nonlinearity points
Authors: Melchert Oliver , Bose Surajit , Willms Stephanie , Babushkin Ihar , Morgner Uwe , Demircan Ayhan
Published: July 2023

We study propagation dynamics of incoherently coupled two-frequency pulse compounds in waveguides with single zero-dispersion and zero-nonlinearity points. We demonstrate nonlinear-photonics meta-atoms and molecule-like bound-states of pulses that persist in presence of the Raman effect.
Controlling the coherent response of arbitrarily shaped plasmonic nanoparticles
Authors: Meron O. , Nehemya S. , Arieli U. , Bahar E. , Suchowski H.
Published: July 2023

We utilize an ultra-broadband pulse-shaper to control the coherent electronic motion in arbitrarily shaped nanoparticles, steering the third-order nonlinear response from destructive to constructive interference. Our results outperform the transform-limited case by a 200% enhancement.
Space-Time Modulated Metasurfaces for Steering of Frequency-Shifted Beams
Authors: Thureja Prachi , Sisler Jared F. , Grajower Meir Y. , Sokhoyan Ruzan , Atwater Harry A.
Published: July 2023

We demonstrate steering of frequency-shifted beams at telecom wavelengths using ITO-based metasurfaces. Driving wavefronts up to 10 MHz are superimposed with spatial phase gradients to control the spectrum and propagation direction of the scattered light.
Demonstration of ultra-compact setup for synthesis of space-time wave packets
Authors: Yessenov Murat , Mhibik Oussama , Mach Lam , Hayward Tina M. , Menon Rajesh , Glebov Leonid , Divliansky Ivan , Abouraddy Ayman F.
Published: July 2023

We introduce an ultra-compact and robust system to generate space-time wave packets based on chirped volume Bragg gratings to spatially resolve the spectrum, which reduced the volume of the synthesis setup down to 25 × 25 × 8 mm3.
Temporal Shaping of Light at the Nanoscale with Photonic Funnels
Authors: LaMountain J. , Raju A. , Briggs A. , Wasserman D. , Podolskiy V.A.
Published: July 2023

Photonic funnels have been demonstrated as a flexible platform to confine light to deep subwavelength spatial areas. Here we consider the utility of this platform to provide temporal, as well as spatial, light shaping.
Coulomb-Enhanced Multi-Photon Processes in Quantum Materials
Authors: Wu You , Ayala C. , Wang P. , Mi Z. , Cundiff S. T. , Kira M.
Published: July 2023

Theory for multi-photon processes is presented to determine extreme nonlinear effects in quantum materials. Our systematic quantum theory predicts that Coulombic many-body effects massively enhance high harmonics and multi-photon absorption.
Versatile power-efficient octave-spanning soliton crystals with high conversion in a Si3N4 microresonator
Authors: Afridi Adnan Ali , Weng Haizhong , McDermott Michael , Tu Huilan , Lu Qiaoyin , Guo Weihua , Donegan John F.
Published: July 2023

We demonstrate various octave-spanning soliton crystals in a Si3N4 microresonator. The conversion efficiency can reach above 50% and the repetition rate (frep) can be tuned from 6 to 8 THz.
A standing-wave approach to mapping key photonic microwave resonances in aqueous spheroids
Authors: Song Yuchen , Hu Miao , Slepkov Aaron D.
Published: July 2023

We show that scalar standing-wave solutions accurately predict certain fundamental microwave Mie resonances in high-index aqueous oblate and prolate spheroids. We compare this simplified method with results obtained using multipole expansion and finite element methods.
Accelerated Adjoint Shape Optimization via Automatic Differentiation
Authors: Hooten Sean , Van Vaerenbergh Thomas , Fiorentino Marco , Beausoleil Ray
Published: July 2023

We use automatic differentiation to enhance shape optimization approaches to photonic inverse design, resulting in over two orders-of-magnitude improvement in the gradient calculation time of our grating coupler proof-of-concept.
Characteristics of Image Sensors with Metaphotonic Color-Routing Nanostructures and the Rapid Resolution-Restoring Demosaic Algorithm
Authors: Lee Sangyun , Roh Sookyoung , Choo Hyuck , Yun Seokho
Published: July 2023

We simulate characteristics of colour-routing image sensors revealing higher peak-SNR and color fidelity with slightly degraded spatial resolutions compared to those of conventional sensors. To compensate, we propose the rapid resolution-restoring demosaic algorithm for colour-routers.
Resonant Metalenses Formulated from Quasi-Bound States in the Continuum for Visible Light
Authors: Malek Stephanie C. , Xu Yuan , Yu Nanfang
Published: July 2023

We experimentally demonstrated a nonlocal, wavefront-shaping metasurface that focuses a narrowband of green light but behaves like a transparent substrate over a broad visible spectrum.
Integrated Software Model for Design, Optimization, and Reverse Engineering of High-Power Laser Systems
Authors: Hirschman Jack , Lemons Randy , Wang Minyang , Kroetz Peter , Carbajo Sergio
Published: July 2023

Modeling chirped-pulse amplification (CPA)- and nonlinear optics (NLO)-based systems is crucial to advance CPA+NLO design and optimization. We present a modular and expandable start-to-end model for engineering and reverse engineering CPA+NLO systems.
Multi-Octave, Multi-Mode Deep-Strong Light-Matter Interaction
Authors: Mornhinweg J. , Halbhuber M. , Diebel L. , Zeller V. , Riepl J. , Bougeard D. , Huber R. , Lange C.
Published: July 2023

Coupling multiple, highly non-resonant cavity and electronic modes, we reach unprecedented coupling strengths equivalent to ΩR/ωc=3.19. The new regime features over 10 polaritons spanning 6 octaves and vacuum ground state populations exceeding 1 photon.
Octave-spanning microcombs generation with controllable intracavity soliton states
Authors: Ye Feng , Cheng Zihao , Huang Dongmei , Liu Xuanyi , Fu H. Y. , Wai P. K. A. , Li Qian
Published: July 2023

We propose a monolithically integrated scheme to efficiently generate robust octave-spanning microcombs with controllable intracavity soliton states using a single CW pump.
Metagrating Design based on Reinforcement Learning
Authors: Wang Zi , Zhu Wenqi , Song Junyeob , Chen Lu , Koksal Okan , Agrawal Amit
Published: July 2023

We demonstrate an algorithm based on reinforcement learning to realize high efficiency multifunctional metagrating devices without the requirement of a training dataset.
Design of an on-chip Vanadium Dioxide driven Plasmonic Modulator Based on Hybrid Orthogonal Junctions on Silicon-on-Insulator
Authors: Tanyi Gregory , Lim Christina , Unnithan Ranjith R
Published: July 2023

We present a plasmonic modulator using a hybrid orthogonal coupling geometry with vanadium dioxide as the modulation material on a silicon-on-insulator platform. The presented device is compact with a nanoscale modulating area and takes advantage of the first order insulator to metal transition of vanadium dioxide to achieve a high modulation depth of 46.89dB/μm. The device has applications in integrated high speed communications systems which require a high modulation depth as well as small device sizes.
From Non-Scattering to Super-Scattering States with the Topology of Light and Matter
Authors: Sedeh Hooman Barati , Litchinitser Natalia
Published: July 2023

We demonstrate the existence of a hybrid anapole state in an all-dielectric cuboid particle and discuss how such a non-scattering state can be changed to super-scattering mode by modifying the topology of light and matter.
Long-range polarization transport in indirect excitons in MoSe2/WSe2 heterostructure
Authors: Zhou Zhiwen , Szwed E.A. , Choksy D.J. , Fowler-Gerace L.H. , Butov L.V.
Published: July 2023

We observed the long-range polarization transport in a system of indirect excitons in van der Waals MoSe2/WSe2 heterostructure. The polarization transport decay distance reaches and exceeds 100 microns and diverges at the resonant excitation.
Fast and Coherent Optical Control with 256 Visible-Wavelength Channels
Authors: Christen Ian , Propson Thomas , Sattari Hamed , Choong Gregory , Petremand Yves , Prieto Ivan , Menssen Adrian J. , Ghadimi Amir H. , Englund Dirk
Published: July 2023

Individual control of hundreds of atomic qubits necessitates individual control of hundreds of optical channels. We implement 256 visible-light modulators in thin-film lithium niobate, actuated and stabilized in parallel by an FPGA-based architecture.
Navigation-grade resonant-fiber optic gyroscope with a broadband source
Authors: Ma Huilian , Liu Shuang , Hu Junyi , Liu Lu , Wang Yuxin , Wang Hewei
Published: July 2023

We report a broadband source-driven resonant-fiber optic gyroscope with 0.0029°/h1/2 angle random walk and 0.0063°/h bias stability when using a 100-meter-long fiber-optic ring resonator of 7.6 cm diameter.
Femtosecond Laser Inscribed Helical Long-Period Fiber Grating for Multiple-Order OAM Mode Generation
Authors: Jiang Chen , Zhou Kaiming , Sun Bing , Wan Ying , Ma Yuehui , Mou Chengbo , Liu Yunqi
Published: July 2023

We demonstrate the inscription of helical long-period gratings (HLPGs) in a few-mode fiber using femtosecond laser. The first-, second-, and third-order orbital angular momentum (OAM) modes can be directly generated using the HLPGs.
Tunable Terahertz Nonlinearities in Graphene
Authors: Hafez Hassan A.
Published: July 2023

Among all the materials we know, graphene exhibits the largest optical nonlinearity, especially at the THz frequencies. This nonlinearity can be efficiently controlled and widely tuned via electrical gating with only a few volts.
Single-Shot Acquisition of Hybrid-Amplified THz-Repetition-Frequency Bursts
Authors: Stummer Vinzenz , Flöry Tobias , Kaksis Edgar , Schneller Matthias , Kitzler-Zeiler Markus , Pugzlys Audrius , Baltuska Andrius
Published: July 2023

We demonstrate single-shot acquisition of hybrid two-step amplified bursts, in which spectral modulations are deliberately suppressed in a femtosecond chirped-pulse amplifier and then recovered in an optical parametric amplifier, anticipating several exciting resonant multiphoton applications.
Titanium:sapphire-on-insulator microresonator laser
Authors: Yang J. , Lukin D. M. , Guidry M. A. , Ahn G. H. , Van Gasse K. , Vučković J.
Published: July 2023

We develop a titanium:sapphire-on-insulator integrated photonic platform and demonstrate a thin-film chip-integrated microdisk laser. The microresonators feature optical quality factors exceeding 1 million, enabling a sub-milliwatt lasing threshold. These results pave the way for low-cost, compact, chip-integrated titanium:sapphire lasers.
Visible 780 nm SBS laser with mW level threshold in an ultra-high 145 million Q integrated waveguide resonator
Authors: Chauhan Nitesh , Isichenko Andrei , Liu Kaikai , Blumenthal Daniel J.
Published: July 2023

We demonstrate 780nm Brillouin lasing in a waveguide coupled Si3N4 resonator with record-low loss (0.36dB/m) and record-high Qi =145x106. A 3mW S1 threshold is measured and cascaded S2 and S3 operation are demonstrated.
308 Tb/s Real-Time Transmission over 1260 km Widened C+L band EDFA Amplified Weakly Coupled 7-Core MCFs using 400 Gb/s/carrier Transceivers
Authors: Feng Lipeng , Zhang Anxu , Feng Zhenhua , Ling Haitao , Luo Yang , Zhang Lei , Zhang Li , Shen Lei , Liu Yuyang , Zhang Mingming , Huo Xiaoli , Li Junjie
Published: July 2023

We demonstrate a 308 Tb/s transmission over 1260 km 7-core fiber link using real-time 400Gb/s/carrier transceivers and widened C+L band EDFAs, achieving a record capacity-distance product in commercial-ready systems to the best of our knowledge.
Ultra-Stable Optical Substrates for High-Average-Power Applications
Authors: Power Erik P. , Bucht Sara , Bromage Jake , Zuegel Jonathan D.
Published: July 2023

Sub-aperture tests and modeling of a “flow-cell” substrate demonstrated <30-s stabilization time. At full-aperture, 2.6-W/cm2 absorbed power density, COMSOL predicts >160× improvement in average-power handling and 150× reduction in warmup time versus passively cooled silica.
Piezo-optomechanical Control of Silicon Photonic Resonator with CMOS Compatibility
Authors: Talcott Gina M. , Leenheer Andrew J. , Starbuck Andrew , Musick Kate , Pomerene Andrew , Dallo Christina , Trotter Douglas C. , Madaras Scott , Gehl Michael , Lentine Anthony L. , Eichenfield Matt , Otterstrom Nils T.
Published: July 2023

We demonstrate piezo-optomechanical phase control in a c-band silicon-photonic resonator using CMOS-compatible AlN microactuators. We achieve a frequency tuning response of 26.91 ± 0.77 MHz/V DC, operating at picowatt to nanowatt power levels.
Observation of Spectral Reorganization of Space-time Wavepackets in Dispersive Materials
Authors: Hall Layton A. , Abouraddy Ayman F.
Published: July 2023

We observe for the first time, the rich structural spatio-temporal dynamics of propagation invariant space-time wave packets which exist in normal and anomalous dispersive mediums.
Transferring the Timing Stability of a Mode-Locked Laser to a Microcomb Using the Electro-Optic Sampling-Based Timing Detector
Authors: Ahn Changmin , Yang Hui , Jeon Igju , Lee Hansuek , Kim Jungwon
Published: July 2023

We transferred the timing stability of a 2-GHz mode-locked laser to a 21.956-GHz microcomb with electro-optic sampling-based timing detection. The phase noise of the microcomb was suppressed by >40 dB at 1-Hz offset frequency.
Ten-Mode Erbium-Doped Fiber Amplifier with Extended Gain Bandwidth of 43 nm
Authors: Wu Yan , Wen Jianxiang , Chen Haoshuo , Mazur Mikael , Fontaine Nicolas K. , Ryf Roland , Pang Fufei , Wang Tingyun
Published: July 2023

We design and fabricate a ten-mode erbium-doped fiber with an extended 15-dB gain bandwidth of 43 nm using Er and Al co-doping, which enables both space- and wavelength-division multiplexing to further scale fiber capacity.
60-Mode Erbium Doped Fiber Amplifier with Low Differential Modal Gain
Authors: Greenberg A. P. , Ma Z. , Kabagöz H. B. , Shahar D. I. , Ramachandran S.
Published: July 2023

We numerically simulate a telecom fiber amplifier with a recently demonstrated fiber that transmits 60 uncoupled modes. We predict differential modal gains as low as 0.5 dB with a simple pump profile comprising only two modes.
A Simple and Low-latency MP2P Aggregation Architecture for Uplink Fronthaul
Authors: Zhong Linsheng , Gao Wanchao , Dai Xiaoxiao , Cheng Mengfan , Deng Lei , Yang Qi , Liu Deming
Published: July 2023

We proposed an economical, low-latency, MP2P uplink fronthaul architecture capable of aggregating four end-users with commercial 25G optical modules and a single photodiode. 4×380.16MHz bands are received independently over 20 km fiber.
TDMA Frame Design and Demonstration of Encrypted Coherent Fronthaul with Flexible and Monitored Rate
Authors: Wei Zixian , Zhang Jinsong , Li Weijia , Plant David V.
Published: July 2023

We introduce a TDMA frame design scheme considering the flexible rate and physical layer security. A 225.39-Gbps to 281.62-Gbps net rate tuning with a step of 3.124 Gbps/pol./λ is achieved on a coherent optical transmission system.
190 mJ & 85 ns Electro-Optically Q-switched 2.79 μm Cr:Er:YSGG Laser
Authors: Martyshkin D. , Fedorov V. , Hamlin S. J. , Mirov S.
Published: July 2023

We report on a 2.79 μm flashlamp pumped electro-optically Q-switched Cr:Er:YSGG laser. The maximum output energy of 190mJ was demonstrated in 85 ns pulses at a 3 Hz repetition rate.
40-GHz resonant-cavity 2-D photodetector array using InP/InGaAs DH structure for advanced optical wireless communications
Authors: Umezawa Toshimasa , Matsumoto Atsushi , Akahane Kouich , Kanno Atsushi , Yamamoto Naokatsu
Published: July 2023

We present a resonant cavity 4×4 photodetector array operated at up to 40 GHz. It enables the separation of wavelengths in the WDM-FSO beam and simultaneously increases the aperture size against the optical alignment issue.
Dual Wavelength DFB Laser Array Based on Four Phase Shifted Sampled Bragg Gratings for THz Generation
Authors: Fan Yizhe , Yuan Bocheng , Ye Shengwei , Sun Yiming , Marsh John H. , Hou Lianping
Published: July 2023

Based on four-phase shifted sampled Bragg gratings, a stable dual-wavelength DFB laser array is reported with frequency separations of 240 GHz, 320 GHz, 640 GHz, 800 GHz, and 1000 GHz.
Wavelength-Agile Dual-Comb Diagnostics of Pulsed Lasers
Authors: Sterczewski Łukasz A. , Sotor Jarosław
Published: July 2023

We show multi-kHz rate laser pulse diagnostics that rely on two-photon detection in a dual-comb configuration without mutual spectral overlap or polarization alignment between the sources. The technique enables us to probe soliton molecule dynamics.
Phase-defined dissipative soliton molecules in ultrafast laser resonators
Authors: Liu Yusong , Huang Siyun , Liu Haoguang , Sun Yixiang , Xia Ran , Yan Lisong , Luo Yiyang , Liu Huanhuan , Xu Gang , Sun Qizhen , Tang Xiahui , Shum Perry Ping
Published: July 2023

Artificial manipulations on dissipative soliton molecules stimulate the exploration for controllable temporal and internal assemblies. Phase-defined four regions are implemented to constitute the high-distinguishable quaternary encoding format and realizes the all-optical storage.
GaSb-Based SESAM Mode-Locked Upconversion-Pumped Thulium Laser at 2308 nm
Authors: Tyazhev Aleksey , Gaulke Marco , Loiko Pavel , Heidrich Jonas , Golling Matthias , Guillemot Lauren , Godin Thomas , Dupont Hippolyte , Druon Frédéric , Camy Patrice , Keller Ursula , Hideur Ammar
Published: July 2023

A thulium laser operating on the 3H4→3H5 transition with upconversion pumping by an ytterbium-fiber laser is passively mode-locked by an GaSb-based SESAM delivering 1.19 ps pulses at 2308 nm with 252 mW average output power.
Integration of Phase Change Material with Commercial 45nm Monolithic Silicon Photonics
Authors: Wu Changming , Sturm Daniel , Adya Uthkarsh , Li Mo , Moazeni Sajjad
Published: July 2023

State-of-the-art commercial silicon photonics can be transformed by adding non-volatile optical reconfigurability, which can be enabled using phase change materials (PCM). We present the first-ever integration of PCM with a commercial-foundry 45nm monolithic silicon photonic process.
Single-cycle Optical Control of Valence Electrons in a Solid and Free Electrons in a Beam
Authors: Morimoto Yuya
Published: July 2023

We review our recent results on single-cycle-driven high-order harmonic generation from electrons in a crystal lacking inversion symmetry and the production of an isolated attosecond peak in a sub-relativistic electron beam with a single-cycle waveform.
Dual-Comb Platform for Compressive Sampling
Authors: Baumann E. , Potvin S. , Deschênes J.-D. , Coddington I. , Newbury N.R. , Giorgetta F.R.
Published: July 2023

We present compressive sampling in a dual-comb platform using time-programmable frequency combs and achieving compression factors in excess of 155 while maintaining bandwidth and resolution.
643 mW Average Power Lithium Niobate THz Source
Authors: Vogel Tim , Saraceno Clara J.
Published: July 2023

We demonstrate power scaling of a THz source based on the tilted-pulse front method in lithium niobate to a record-high average power of 643 mW, obtained at 40 kHz repetition rate.
High-efficiency optical parametric amplifier for generating intense narrowband THz pulses
Authors: Seo Meenkyo , Mun Je-Hoi , Heo Jaeuk , Kim Dong Eon
Published: July 2023

We demonstrate an effective method to generate high-energy narrowband THz pulses by super-Gaussian laser pulses produced from the high-efficiency (over 55%) optical parametric amplifier (OPA).
Enhanced generation of µJ-level broadband terahertz pulses in BNA enabled by a hollow-core fiber compressor
Authors: Jeong Young-Gyun , Zanotto Luca , Seo Dong-Jae , Kyoung Jisoo , Schmidt Bruno E. , Shalaby Mostafa , Razzari Luca
Published: July 2023

We demonstrate enhanced and broadband terahertz generation in a collinearly pumped BNA organic crystal. Suitably compressed ytterbium laser pulses yield a 75% increase in conversion efficiency and a spectral coverage up to 12 THz.
Comb Emission of a THz-QCL Characterized by Fourier Transform Analysis Over Different Current Regimes
Authors: Sorgi Alessia , Cappelli Francesco , Eramo Roberto , De Natale Paolo , Riccardi Elisa , Pistore Valentino , Vitiello Miriam S. , Consolino Luigi
Published: July 2023

The Fourier-transform Analysis of Comb Emission (FACE) is here exploited to asses the coherence level of the comb emission of a novel QCL heterostructure lasing at THz frequencies in different driven current regimes.