bluuebunny/crossref_metadata_2025 huggingface dataset:
Generation of Superfluorescence from Multiexcitons Confined in Semiconductor Quantum Dots
Authors: Fujioka Gen , Otani Yuki , Yu Xi , Miyajima Kensuke
Published: September 2024

Superfluorescences from triexcitons and biexcitons confined in semiconductor quantum dots were observed by time-resolved photoluminescence measurements. Superfluorescence of the triexcitons shows a shorter pulse width and a broader spectral width than that of the biexcitons.
Compressed Meta-Optical Encoder for Image Classification
Authors: Wirth-Singh Anna , Xiang Jinlin , Choi Minho , Fröch Johannes , Huang Luocheng , Shlizerman Eli , Majumdar Arka
Published: September 2024

For MNIST image classification, we compress a CNN to a single convolutional layer and linear electronic backend. We implement the convolution optically via engineering the PSF of meta-optics and demonstrate classification accuracy exceeding 93%.
A Ceramic Radiative Cooler with Near-Ideal Solar Reflectance and Intrinsic Selective Emittance
Authors: Varghese Nithin Jo , Mandal Jyotirmoy
Published: September 2024

A ceramic bi-layer, owing to its porosity, long wavelength infrared (LWIR) Christiansen effect, and Reststrahlen band behavior, exhibits a near-ideal solar reflectance (R
solar
> 0.99) and a high selective LWIR emittance (ε
LWIR
) without the use of any metal backings.
Optimal Photonic Crystal Laser Designs via Superpotentials
Authors: Sadri Koorosh , Karcher Jonas , Barsukova Maria , Zhang Zeyu , Rechtsman Mikael C.
Published: September 2024

Typical photonic crystal lasers exhibit either localized defect modes or extended Bloch modes. Here we theoretically propose the concept of photonic crystal superpotentials and show that they can achieve optimal performance in the trade-off between power versus spatial and spectral purity.
Counter-directional generation of photon-pairs in periodically poled Rb-KTiOPO4
Authors: Swillo Marcin , Mutter Patrick , Amores Albert Peralta , Zukauskas Andrius , Pasiskevicius Valdas
Published: September 2024

For the first time, we show spectral and polarization indistinguishability of photon pairs generated in counter-propagating degenerate spontaneous parametric downconversion in the telecommunications band using first-order quasi-phase-matching in periodically poled Rb-KTiOPO4.
Quantum squeezing of edge-states in a nonlinear resonator
Authors: Lustig Eran , Guidry Melissa A. , Lukin Daniil M. , Fan Shanhui , Vučković Jelena
Published: September 2024

In this work we study quadrature-squeezed multi-frequency edge states. We show how edge-states and band-topology shape the squeezing spectrum by pumping a Kerr nonlinear integrated micro-ring resonator with CW light.
Self-suppressed quantum diffusion and fundamental noise limit of soliton microcombs
Authors: Jin Xing , Lv Zhe , Gong Qihuang , Yang Qi-Fan
Published: September 2024

We theoretically and numerically investigate the quantum diffusion of dissipative Kerr solitons in multi-mode microresonators. Our results indicate that dispersive-wave radiation changes effective viscosity, reducing the diffusion rate by up to 20 dB.
Experimental demonstration of photonic Landau levels
Authors: Barsukova Maria , Grisé Fabien , Zhang Zeyu , Vaidya Sachin , Guglielmon Jonathan , Weinstein Michael I. , He Li , Zhen Bo , McEntaffer Randall , Rechtsman Mikael C.
Published: September 2024

We experimentally observe dispersive Landau levels resulting from a strain-induced pseudomagnetic fields in a photonic crystal slab. An additional strain corresponding to a pseudoelectric field flattens the bands.
Three Dimensional Reconfigurable Optical Singularities in Bilayer Photonic Crystals
Authors: Ni Xueqi , Liu Yuan , Lou Beicheng , Zhang Mingjie , Hu Evelyn L. , Fan Shanhui , Mazur Eric , Tang Haoning
Published: September 2024

This paper explores tunable bilayer photonic crystals (BPhCs) for dynamic control of optical singularities, demonstrating bidirectional/unidirectional polarization, and spatiotemporal phase singularities. This study enables multidimensional control in ultrafast and quantum optics.
Engineering Form Birefringence in All-Glass Metasurfaces: A Geometric Perspective on Phase-Space Filling
Authors: Oliveira M. B. Silva , Piccardo M.
Published: September 2024

We demonstrate all-glass metasurfaces for high-power lasers, detailing design criteria for complete 2D phase-space coverage through geometric reasoning. This enables full wavefront manipulation in monolithic devices paving the road to intense vectorial laser-matter interactions.
Coherent Excitation of Chiral Phonons Using THz Light
Authors: Biggs Megan F. , Ho Sin-Hang (Enoch) , Alejandro Aldair , Lutz Matthew J. , Moss Clayton D. , Latin Abigail J. , Johnson Jeremy A.
Published: September 2024

A circular polarized THz pulse is used to excite coherent chiral phonon motion in non-magnetic LiNbO3 and β-BaB2O4, which in turn induces a transient magnetic moment that we probe via the ultrafast Faraday effect.
Chiral optical nanocavity with atomically thin mirrors
Authors: Suárez-Forero D.G. , Ni R. , Sarkar S. , Mehrabad M. Jalali , Hafezi M. , Zhou Y.
Published: September 2024

We demonstrate the design and fabrication of a 2D optical cavity composed of two atomically thin mirrors made of transition metal dichalcogenide (TMD) monolayers. Under a magnetic field, the cavity acquires a chiral behavior due to the active nature of the TMD mirrors.
Effects of Magnetic Ordering on A-mode Peaks using Raman Spectroscopy in Magnetic Topological Material EuCd2As2
Authors: Kang J. H. , Petrides I. , Roychowdhury S. , Shekhar C. , Felser C. , Narang P. , Wong C. W.
Published: September 2024

Magneto-Raman spectroscopy reveals magnetic ordering dependent helical phonon vibration modes in FM- and AFM-EuCd2As2 samples below their critical temperatures. While AFM-sample has the same spectra in co-circular polarizations, FM-sample has different degree of circular polarization.
Photon statistics of squeezed light from a silicon nitride microresonator without photon number resolving detectors
Authors: Borghi Massimo , Brusaschi Emanuele , Bacchi Marcello , Liscidini Marco , Galli Matteo , Bajoni Daniele
Published: September 2024

We measure the photon number statistics of squeezed light from a silicon nitride resonator using on-off detectors. The distribution is well described by that of the product of a two-mode squeezer and two uncorrelated single-mode thermal states.
High-Dimensional Biphoton Emission in the OAM Basis
Authors: Shahar Daniel I. , Demas Jeffrey , Greenberg Aaron P. , Ramachandran Siddharth
Published: September 2024

We demonstrate a 7-dimensional, fiber-based, single-apertured source of spectrally overlapping biphotons distinguished by orbital angular momentum enabled by the large modal density of a ring core fiber. Abstract
Photonic Crystal Superpotentials: Realization of Airy Resonances
Authors: Zhang Zeyu , Barsukova Maria , Rechtsman Mikael C.
Published: September 2024

We theoretically show that a slowly-varying perturbation to photonic crystal is described using a Schrödinger equation in the vicinity of a quadratic band edge. We use such a ‘superpotential’ to describe photonic crystal Airy resonances.
Light Guiding and Directional Coupling in Nonlinear Photonic Crystals
Authors: Yesharim Ofir , Izhak Shani , Arie Ady
Published: September 2024

A new waveguiding mechanism is theoretically and experimentally demonstrated, using sum frequency generation and 2D periodically poled KTP crystals, where a frequency superposition beam is guided and manipulated on-chip without any linear refractive index change.
Ultrafast Negative Diffusion in gold films
Authors: Block A. , Yu R. , Un I.W. , Varghese S. , Liebel M. , van Hulst N.F. , Fan S. , Tielrooij K.J. , Sivan Y.
Published: September 2024

Using ultrafast thermo-modulation microscopy, we show that the spatio-temporal heat diffusion in gold films has an initial ps-scale, electron-dominated diffusion, followed by an unexpected negative diffusion stage, and only then a much slower phonon-dominated diffusion.
Coherent Amplification in Ultrafast Electron Microscopy
Authors: Bucher Tomer , Nahari Harel , Sheinfux Hanan Herzig , Ruimy Ron , Niedermayr Arthur , Dahan Raphael , Yan Qinghui , Adiv Yuval , Yannai Michael , Chen Jialin , Kurman Yaniv , Park Sang Tae , Masiel Daniel J. , Janzen Eli , Edgar James H. , Carbone Fabrizio , Bartal Guy , Tsesses Shai , Koppens Frank H.L. , Vanacore Giovanni Maria , Kaminer Ido
Published: September 2024

We present free-electron imaging of sub-cycle spatio-temporal dynamics of 2D polariton wavepackets, demonstrating the first simultaneous time-, space-, and phase-resolved measurement of such phenomena, and resolving their novel features like vortex-anti-vortex singularities for record-low intensities.
Steering Quantum Dynamics through Electronic Entanglement in Molecules Pumped by Atto and Few Femto Second Pulses
Authors: Remacle Francoise
Published: September 2024

Broad energy band width atto pulses excite superposition of electronic states that entangle electronic and nuclear motions. We discuss how to exploit this entanglement to steer the force on the nuclei and control chemical reactivity
Controlling High Harmonic Supercontinuum Generation with the Spectral Polarization of the Driver
Authors: Ragonis Eldar , Ben-Arosh Eran , Merensky Lev , Fleischer Avner
Published: September 2024

A High-Harmonic-Generation (HHG) scheme offering continuous control over the bandwidth of the spectral peaks is presented. The scheme uses a vectorial two-color driver with close frequencies, generated by spectrally splitting an input laser pulse and recombining the two halves after their polarizations are made cross-elliptical counter-rotating.
Optimizing Fermi Level Engineering for Single Neutral Silicon Vacancy Centers in Diamond
Authors: Das Arunava , Mukherjee Sounak , Zhang Zi-Huai , Edmonds Andrew M. , Palmer Nicola , Patel Rajesh , Markham Matthew L. , de Leon Nathalie P.
Published: September 2024

We use Fourier transform infrared spectroscopy (FTIR) and photoluminescence spectroscopy to characterize boron and nitrogen concentrations needed for the stabilization of neutral silicon vacancy centers (SiV0) in Si-implanted diamonds co-doped with boron and nitrogen.
A Scalable Entanglement-Based Distributed Multi-User QKD System for Networks
Authors: Kaltwasser Jakob , Tippmann Maximilian , Niederschuh Florian , Dolejsky Till , Mengler Maximilian , Seip Joschka , Fitzke Erik , Walther Thomas
Published: September 2024

We report on the progress of our time-bin coding quantum key distribution network. We demonstrate its flexible operation, detector time multiplexing to reduce the number of detectors, and a key exchange with spatially separated parties.
Networked multi-user continuous-variable quantum key distribution using squeezed state
Authors: Bian Yiming , Yu Song , Zhang Yichen
Published: September 2024

We report a continuous-variable quantum key distribution protocol with high resistance to channel loss and excess noise by using a squeezed state source and multiple homodyne detectors.
Freeform High-Q Metasurfaces Enabled by Tailored Optical Nearfields
Authors: Zhou You , Shao Yixuan , Dai Tianxiang , Mao Chenkai , Fan Jonathan
Published: September 2024

We present a new concept in freeform photonic optimization in which resonances in metasurfaces are directly engineered using the adjoint variables method. We apply this strategy for designing nonlocal, chiral metasurfaces with high quality factors.
Steering Loss with Hyperbolic Shear Metasurfaces
Authors: Renzi Enrico Maria , Galiffi Emanuele , Ni Xiang , Alù Andrea
Published: September 2024

We introduce metasurfaces supporting hyperbolic surface waves with strong axial dispersion and asymmetric loss distribution stemming from microscopic shear phenomena. Their features offer enhanced broadband light matter interactions and inherent resilience to material loss.
Expanding Entanglement Using Metasurfaces
Authors: Nemirovsky-Levy Liat , Kam Amit , Segev Mordechai , Bartal Guy
Published: September 2024

We propose metasurfaces-based scheme to expand the polarization entanglement between two photons. Our approach increases the entanglement dimension, expanding the biphoton state into a hyperentangled state with polarization and OAM entanglement imprinted onto two photons.
Optimal Continuous Dynamical Decoupling in N-type Atomic Ensemble Quantum Memories
Authors: Loveridge Tegan , Shinbrough Kai , Lorenz Virginia O.
Published: September 2024

We simulate N-type quantum memory in atomic ensembles with a high-lying sensor state in the regime of continuous dynamical decoupling. We find order-of-magnitude memory lifetime enhancements for realistic experimental parameters.
New Horizons in SPDC X-ray Imaging
Authors: Goodrich Justin C. , Mahon Ryan , Hanrahan Joseph , Dziubelski Monika , Abrahao Raphael A. , Karmakar Sanjit , Gofron Kazimierz J. , Caswell Thomas A. , Allan Daniel , Berman Lonny , Fluerasu Andrei , Nomerotski Andrei , DaVià Cinzia , McSweeney Sean
Published: September 2024

The SPDC of X-rays via nonlinear Bragg diffraction from a diamond crystal is explored at a synchrotron light source. In this report we share, to the best of our knowledge, our record detection of SPDC X-rays along with imaging applications.
Observation of X-ray Photon Pairs with a Pixelated Detector
Authors: Strizhevsky E. , Klein Y. , Hartmann R. , Francoual S. , Schulli T. , Zhou T. , Sharma A. , Pietsch U. , Strüder L. , Altamura D. , Giannini C. , Shokr M. , Shwartz S.
Published: September 2024

We showcase the application of a 2-dimensional detector for observing energy and momentum-correlated x-ray pairs. This detector introduces novel possibilities for applications in quantum x-ray optics.
Deterministic quantum state generators and stabilizers from nonlinear photonic filter cavities
Authors: Chen Sean , Rivera Nicholas , Sloan Jamison , Soljačić Marin
Published: September 2024

We develop new schemes that exploit specially designed Kerr nonlinear resonators with non-Markovian dissipation to deterministically generate and stabilize important non-Gaussian quantum states (e.g., Fock, cat, and photon-number-comb states) from simple inputs.
Radiation Pressure Measurement on Power-Reporting Lightsail Membranes
Authors: Michaeli L. , Gao R. , Kelzenberg M. D. , Hail C. U. , Sader J. E. , Atwater H. A.
Published: September 2024

We measure radiation pressure forces exerted on a 50-nm-thick silicon nitride lightsail membrane by a collimated beam, as a function of angle. The lightsail reports the driving power by simultaneously acting as a micromechanical bolometer.
Measuring Bell Inequalities via Diffraction
Authors: Pollack Gilad , Kfir Ofer
Published: September 2024

We propose a diffractive approach for Bell-inequality measurements of double-slit qubits, where the bases and digitization error are post-selected. This work enables quantifying entanglements of particles regardless of internal degrees of freedom.
Programmable high-dimensional mode-sorting of time-frequency states of single photons
Authors: Serino L. , Bhattacharjee A. , Stefszky M. , Eigner C. , Brecht B. , Silberhorn C.
Published: September 2024

We demonstrate a high-dimensional mode-sorter for single photons based on a multi-output quantum pulse gate, which can programmatically switch encoding between temporal modes, frequency bins and time bins, reaching a fidelity of 0.967 ± 0.031 at the single-photon level.
Tunable Mode-Locking Laser via a Nested Microring Resonator
Authors: Di Lauro Luigi , Rahim Aadhi. A. , Alamgir Imtiaz , Dmitriev Pavel , Perron Nicolas , Mazoukh Celine , Fischer Bennet , Roztocki Piotr , Rimoldi Cristina , Chemnitz Mario , Eshaghi Armaghan , Evgeny Viktorov A. , Kovalev Anton V. , Little Brent E. , Chu Sai T. , Moss David J. , Morandotti Roberto
Published: September 2024

We demonstrate an ultra-stable, tunable mode-locked laser cavity featuring a nested microring resonator for generating and switching between different repetition rates. Our approach offers a solution for spectroscopy, metrology, and communications applications.
Second Harmonic Generation in Photonic Time Crystals
Authors: Konforty Noa , Cohen Moshe-Ishay , Segal Ohad , Plotnik Yonatan , Segev Mordechai
Published: September 2024

We study the process of second harmonic generation in photonic time-crystals. We find the phase matching condition of the process and show it can be tailored by the photonic time-crystal band structure.
Using Temporal Reflection for Probing the Trajectory of Raman Solitons inside a Photonic Crystal Fiber
Authors: Zhang Junchi , Donaldson William R. , Agrawal Govind P.
Published: September 2024

We discuss experiments employing temporal reflection inside a photonic crystal fiber to probe the trajectory of a decelerating short soliton undergoing Raman-induced red shift along the fiber’s length.
Time-Domain Bound States in the Continuum
Authors: Schiller Oded , Segal Ohad , Plotnik Yonatan , Segev Mordechai
Published: September 2024

We present the concept of temporal Bound States in the Continuum (BIC): bound states in the time dimension embedded in the spatial frequency continuum. These BICs are analytic solutions to Maxwell’s equations in time-varying media.
Voltage-Modulated Nanoplasmonic Metal Luminescence in Electrochemical Surface-Enhanced Raman Spectroscopy
Authors: Zhao Yuming , Xiao Chuan , Mejia Elieser , Zhou Wei
Published: September 2024

This study explores dynamic voltage-modulated nanoplasmonic metal luminescence at the electrode-electrolyte interface using nanolaminate nano-optoelectrode arrays. We demonstrate a negative voltage modulation slope in nanoplasmonic metal luminescence during electrochemical surface-enhanced Raman spectroscopy measurements.
Entanglement between a telecom photon and a room-temperature atomic-vapor quantum memory
Authors: Wang Yang , Craddock Alexander N. , Giraldo Felipe , Sekelsky Rourke , Flament Mael , Namazi Mehdi
Published: September 2024

We report experimental results of entangling a telecom photon and a long-lived atomic quantum memory, a key step in building a quantum repeater for long-distance quantum communications.
Band structure measurements in multi-dimensional synthetic frequency lattices
Authors: Cheng Dali , Lustig Eran , Wang Kai , Fan Shanhui
Published: September 2024

We experimentally demonstrate a method to fully measure multi-dimensional band structures in synthetic frequency dimensions by introducing a gauge potential into the lattice Hamiltonian. We use this method to study non-Hermitian topology in high dimensions.
Ultrafast dynamics of chiral phonons in tungsten disulfide
Authors: Lin Tong , Chen Xiaotong , Xu Rui , Luo Jiaming , Zhu Hanyu
Published: September 2024

Linearly and circularly polarized phonons in monolayer WS2 are directly excited by resonant infrared pulses. The dynamics of coherent and incoherent chiral phonons are measured by time-resolved Raman spectroscopy and reveal possible depolarization mechanisms.
Two-dimensional nonlinear optics with a twist
Authors: Norden Tenzin , Martinez Luis M. , Tarefder Nehan , Kwock Kevin W. C. , McClintock Luke M. , Olsen Nicholas , Zhu Xiaoyang , Holzman Luke , Hone James C. , Yoo Jinkyoung , Zhu Jian-Xin , Schuck P. James , Taylor Antoinette J. , Prasankumar Rohit P. , Kort-Kamp Wilton J. M. , Padmanabhan Prashant
Published: September 2024

We demonstrate multi-beam structured nonlinear optics in a monolayer van der Waals crystal, realizing the independent manipulation of the wavelength and topological charge of a vortex beam through second- and third-order nonlinearities. Our results pave the way for a new route to realize nanoscale tunable sources of vortex light.
Procrustean entanglement concentration for quantum-classical coexistence
Authors: Lu Hsuan-Hao , Alshowkan Muneer , Alnas Jude , Lukens Joseph M. , Peters Nicholas A.
Published: September 2024

We present a theoretical framework for Procrustean entanglement concentration tailored for polarization-entangled states infiltrated by polarized classical crosstalk, and experimentally validate its efficacy in a deployed quantum local area network.
General image compression using random-PSF metasurfaces and computational back-end
Authors: Zhang Yubo , Chen Rui , Choi Minho , Fröch Johannes E. , Majumdar Arka
Published: September 2024

Compressive imaging that reduces the pixel numbers can lower the cost and power consumption. Here, we use a random-PSF metasurface and computational back-end to achieve a compression rate of 50% for general scenes.
Photo-physics of Silicon X-center Ensembles with Above Bandgap Excitations
Authors: Fan Cody , Sarihan Murat Can , Huang Jiahui , Kang Jin Ho , Liang Baolai , Wong Chee Wei
Published: September 2024

We study the carrier dynamics of X-center ensembles in silicon, which were obtained via ion implantation and annealing on a bulk silicon substrate.
Temperature-Resolved Photoionization Spectroscopy of the Nitrogen–Vacancy 1E Singlet State
Authors: Blakley Sean M. , Mai Thuc , Walker Angela Hight , McMichael Robert D.
Published: September 2024

By applying wavelength-tuned spin-selective photoionization, the energies of the 1E and 1A1 nitrogen–vacancy (NV) singlet states relative to the diamond band-gap edges are determined as a function of temperature.
Fluorescence by nonclassical light: Getting it right
Authors: Drago C. , McLean A. , Jimenez R. , Sipe J. E.
Published: September 2024

We calculate the fluorescence of cold cesium atoms excited by low intensity, non-degenerate squeezed light, which enhances the fluorescence rate compared to classical light. The signal is predicted to be in an experimentally detectable regime.
Photon-pair Generation via Raman-active N2 Defects in Silicon Nitride Waveguides
Authors: Oolman Kathleen , Shinbrough Kai , Lorenz Virginia O.
Published: September 2024

We show preliminary photon-pair generation data from Raman-active interstitial N2 defects in silicon nitride waveguides. Using calculated phase-mismatch of the propagating photons, we propose an experimental scheme for deterministic single-photon generation using non-degenerate pumping wavelengths.
Room-Temperature Silicon Nitride Quantum Emitters for Advancing Quantum Key Distribution
Authors: Senichev Alexander , Martin Zachariah O. , Peana Samuel , Kryvobok Artem , Lagutchev Alexei S. , Boltasseva Alexandra , Shalaev Vladimir M.
Published: September 2024

Newly discovered silicon nitride quantum emitters hold great promise for industrial-scale quantum photonic applications. We assess the performance of intrinsic room-temperature SiN single-photon emitters for quantum key distribution, showcasing their exceptional brightness and single-photon purity.
Comparing optical thermalization dynamics in different lattices via Kullback-Leibler divergence
Authors: Yang Guowen , Bongiovanni Domenico , Song Daohong , Morandotti Roberto , Chen Zhigang , Efremidis Nikolaos K.
Published: September 2024

We study optical thermalization dynamics in different optical lattices by evaluating mode occupation and entropy maximization under different nonlinear conditions. Via the Kullback-Leibler divergence, we unveil the difference in thermalization speed towards reaching the Rayleigh-Jeans distribution.
Optical condensation of light via Joule-Thomson expansion
Authors: Pyrialakos Georgios G. , Kirsch Marco S. , Altenkirch Richard M. , Beck Julius , Ren Huizhong , Selim Mahmoud A , Jung Pawel S , Khajavikhan Mercedeh , Szameit Alexander , Heinrich Matthias , Christodoulides Demetrios
Published: September 2024

We establish a thermodynamic framework for an all-optical Joule-Thomson expansion process in multimoded nonlinear systems. We experimentally demonstrate that power from single-site inputs can universally condense into the fundamental mode of a waveguide lattice.
Stochastic approach in Thermodynamics of nonlinear multimode lattices
Authors: Makris K. G. , Pyrialakos G. G. , Wu F. O. , Christodoulides D. N.
Published: September 2024

We develop a stochastic Langevin type of approach for thermodynamics of weakly nonlinear multimode optical systems. Our analytical theory captures the complex system-bath dynamics, based on the mixing that caused by optical nonlinearity.
Nanoplasmonics for Purcell-enhanced Spontaneous Emission in Diamond Silicon Vacancy Centers
Authors: Li Hengming , Acil Deniz , Boyce Andrew M. , Wilson Nathaniel C. , Shen Qixin , Mikkelsen Maiken H.
Published: September 2024

Slow spontaneous emission limits photonic-based quantum information applications. Here, we discuss our recent progress in realizing ultrafast emission in silicon vacancy centers through integrating diamond membranes with sub-diffraction limited plasmonic cavities through Purcell enhancement.
Time Domain Phase Engineering of Metasurfaces Enables Passive Ultrafast Photonic Streaking
Authors: Karl Nicholas , Iyer Prasad
Published: September 2024

We describe a time-domain nano-photonic design principle for controlling electromagnetic waves at femtosecond timescales and illustrate a metasurface design that numerically demonstrates streaking of ultrafast pulses passively using arrays of resonance-based dielectric metasurfaces.
Toward high-gain laser-driven electron undulation
Authors: Balanov Amnon , Ruimy Ron , Kaminer Ido
Published: September 2024

We find an unexplored regime of inverse Compton scattering, achieving high-gain undulation as in FELs. We show the potential for soft-X-ray and extreme ultraviolet radiation sources based on next-generation electron sources and state-of-the-art laser sources.
Free-electron ponderomotive guiding for strong coupling and single-photon nonlinearity
Authors: Karnieli Aviv , Rivera Nicholas , Roques-Carmes Charles , Fan Shanhui
Published: September 2024

We show how ponderomotive guiding of free electrons inside hollow optical fibers enables strong electron-photon coupling, together with exceptionally high single photon nonlinearities.
Topological Protected Transport of Broadband Quantum Frequency Comb in Valley Photonic Crystals
Authors: Jiang Zhen , Wang Hongwei , Su Yikai , Jiang Chun , He Guangqiang
Published: September 2024

We propose on-chip topological transport of quantum frequency comb (10 THz) with frequency entanglement in valley photonic crystals. Our proposal could open new avenues for high-dimensional information processing utilizing topology in quantum system.
Theory and Experiment of Nanoscale Heterostructure Scintillators
Authors: Shultzman Avner , Beer Orr , Strassberg Rotem , Dosovitskiy Georgy , Schütz Roman , Veber Noam , Roques-Carmes Charles , Bekenstein Yehonadav , Kaminer Ido
Published: September 2024

We develop a framework modeling nanoscale their light yield quantitatively and comparing with new fabricated multilayer polymer-scintillators. This combined theory-experiment approach unveils the prospects of controlling secondary-electrons for future enhanced scintillators.
Light emission from sub-keV free electrons
Authors: Roitman Dolev , Karnieli Aviv , Tsesses Shai , Barkay Zahava , Arie Ady
Published: September 2024

We demonstrate coherent free-electron radiation in visible wavelengths with electron energies as low as 300 eV – a major step towards broadband, tunable, energy efficient on-chip light sources and observation of quantum emission recoil effects.
Analog Information Processing on a Photonic Chip with Programmable Photonic Integrated Circuits
Authors: Miri Mohammad-Ali , Zelaya Kevin , Markowitz Matthew
Published: September 2024

An architecture for efficient integrated photonic implementation of arbitrary discrete linear operators is discussed. This is built by interlacing waveguide arrays with programmable active layers.
Correlation-driven Nonequilibrium Exciton Site Transition in a WSe2/WS2 Moiré Supercell
Authors: Kim Jinjae , Park Jiwon , Choi Hyojin , Kim Taeho , Cha Soonyoung , Lee Yewon , Watanabe Kenji , Taniguchi Takashi , Kim Jonghwan , Jo Moon-Ho , Choi Hyunyong
Published: September 2024

We have investigated the site-dependent nonequilibrium exciton correlations in WSe2/WS2 heterobilayers. Near-zero angles exhibit intriguing polarization switching and enhanced Pauli blocking, while a 60° twist angle shows no such correlations, emphasizing moiré supercell configuration dependence.
Solid High Harmonic Enhancement Near the Band Gap Edge
Authors: Kowalczyk Katarzyna M. , Allegre Hortense , Broughton Joseph , Wyatt Adam S. , Zhang Yu , Springate Emma , Tisch John W.G. , Marangos Jon , Matthews Mary
Published: September 2024

We present a SWIR wavelength dependence study of high harmonics from MgO and α-Al2O3. We report robust enhancement for harmonic energies corresponding to the widest bandgap accompanied by gradual changes to the harmonic anisotropy.
Ponderomotive detuning of excitonic high harmonics in GaN
Authors: Wu You , Chen Z. , Ayala C. , Levit M. , Nisim I. , Wu Y. , Mi Z. , Cundiff S. T. , Kira M. , Krüger M.
Published: September 2024

Quantitative theory–experiment analysis demonstrates that ponderomotive detuning reveals a set of excitonic resonances in high harmonics emitted by a 200nm-thick GaN crystal. We show that these dynamical resonances are sensitive to electronic many-body effects.
Photonic neural network and in-situ training in a synthetic frequency dimension
Authors: Gottlieb Felix , Wang Kai
Published: September 2024

We develop a scalable photonic neural network utilizing the discrete frequency degree of freedom of light with the ability to train itself based on an in-situ backpropagation method with minimal reliance on external computers.
Coherence Awareness in Diffractive Neural Networks
Authors: Kleiner Matan , Michaeli Lior , Michaeli Tomer
Published: September 2024

We demonstrate the significant i nfluence of th e il lumination co herence on diffractive networks, and propose a framework for network optimization with any prescribed degree of spatial and temporal coherence. We analyze performance for varied coherence properties.
Lensless microimaging via a multimode fiber probe based on compression sampled speckles
Authors: Wang Lele , Zhang Yiwei , Li Dan , Yan Ping , Xiao Qirong
Published: September 2024

The all-fiber lensless microimaging scheme was experimentally demonstrated for the first time. Natural scenes reconstruction and distance detection are implemented with dual networks and partially diffuse speckles. Highly integrated structure is suitable for implantable micro-endoscopes.
Single-arm Interferometric Plasmonic Sensor integrated on a cladded polymeric photonic platform
Authors: Fotiadis K. , Damakoudi L. , Simos St. , Chatzianagnostou E. , Spasopoulos D. , Bellas D. V. , Bhalerao O. , Suckow S. , Lemme Max , Lidorikis E. , Pleros N.
Published: September 2024

We demonstrate a high-sensitivity single-arm interferometric plasmo-photonic refractive index sensor co-integrated for the first time on a cladded SU-8 polymer waveguide platform, reporting a low-complexity and low-cost sensor with an experimental sensitivity of 6069 nm/RIU.
Efficient Continuous-Wave Tm,Ho:GdScO3 Laser at 2.1 μm
Authors: Eremeev Kirill , Loiko Pavel , Li Shanming , Zhao Chengchun , Hang Ying , Chen Weidong , Elabedine Ghassen Zin , Mateos Xavier , Camy Patrice , Braud Alain , Griebner Uwe , Petrov Valentin
Published: September 2024

We report on the growth, polarized spectroscopy and first laser operation of orthorhombic Tm,Ho:GdScO3 perovskite-type crystal featuring broadband emission properties. The Tm,Ho:GdScO3 laser generated 521 mW near 2.1 µm with a slope efficiency of 30%.
44.6 fs pulse generation in an Er:fiber laser at 540 MHz repetition rate
Authors: Chen Zhendong , Yang Ruoao , Tang Yangpeng , Pan Duo , Wang Ya , Cao Jingpeng , Wu Jian Jun , Zhang Zhigang , Chen Jingbiao
Published: September 2024

We demonstrate a mode-locked ring-cavity Er:fiber laser at a repetition rate of 540 MHz. The pulse duration is 44.6 fs with a spectral bandwidth of 82 nm. The maximum output power is 280 mW.
Ultrafast Laser Stress Generation and Morphology in Fused Silica
Authors: Laverty Kevin A. , Humphreys Caroline A. , Calixtro Francisco A. , Arnold Ian J. , Chalifoux Brandon D.
Published: September 2024

Ultrafast laser generated structural modification morphology depends on pulse energy and repetition rate. We present integrated stress measurements and cross-section micrographs showing the peak stress correlates to a transition between nanograting formation and melting.
Performance Analysis of an UWB/SDM Optical Network Node with PIC-based Flexible WaveBand-Selective Switches
Authors: Papapavlou Charalampos , Paximadis Konstantinos , Gomez Braulio , Marom Dan M. , Tomkos Ioannis
Published: September 2024

We analyze a hierarchical optical node architecture supporting flexible band switching using WBSSs across a variety of spatial/spectral granularities from a wavelength channel to full-fiber switching, offering high-performance along with significant size/cost-savings.
Demonstration of Mitigation of Both Turbulence and Misalignment in a 50-Gbit/s/channel Free-Space Mode-Division-Multiplexed Optical Link Using Complex Beamforming
Authors: Ramakrishnan Muralekrishnan , Zhou Huibin , Jiang Zile , Su Xinzhou , Duan Yuxiang , Alhaddad Abdulrahman , Tur Moshe , Willner Alan
Published: September 2024

We experimentally demonstrate a beamforming technique for mitigating channel crosstalk effects due to both misalignment and turbulence in a two-mode-multiplexed free-space-optical communication link, achieving a crosstalk reduction by ~15 dB in a 50-Gbits/s/channel link.
Foundry-fabricated Visible-Wavelength Polarization Splitter and Rotator on a Silicon Nitride-on-Insulator Platform
Authors: Sundaram Vijay Soorya Shunmuga , Deenadayalan Venkatesh , Palone Thomas , Fanto Michael L. , Howland Greg , Preble Stefan
Published: September 2024

We present the first foundry-fabricated polarization rotator in the visible-wavelength-regime of 647-657nm on a silicon nitride-on-insulator platform. Polarization-Extinction-Ratio (PER) of > 18dB and insertion loss (IL) < 1dB are experimentally shown.
Manufacturing High-Q Silicon Nitride Photonic Chips via Silicon Hardmask Etching
Authors: Liu Shuai , Zhang Yuheng , Zhang Zheshen
Published: September 2024

We present a robust process for fabricating high-Q, dispersion-engineered Si3N4 photonic chips using amorphous silicon hardmask etching with PECVD SiO2 cladding, achieving an intrinsic quality factor up to ~ 17.5 × 106 and an average intrinsic quality factor of ~ 13 × 106. We anticipate a further reduction in propagation loss through LPCVD SiO2 cladding.
CMOS analog electronics for on-chip monitoring and control of Silicon Photonics circuits
Authors: Zanetto F. , Crico M. , Martinez A. , SeyedinNavadeh S. , Morichetti F. , Melloni A. , Ferrari G. , Sampietro M.
Published: September 2024

We report on the monolithic cointegration of CMOS analog electronic circuits in a commercial Silicon Photonics technology, providing the essential building blocks for on-chip amplification and processing of electrical signals.
Design and realization of octave-spanning, low fceo microcombs at sub-telecom wavelengths in silicon nitride
Authors: Colación Gabriel , Rukh Lala , Melton Tristan , Aldhafeeri Alwaleed , Chin Hsiao-Hsuan , Wong Chee Wei , Drake Tara
Published: September 2024

We present design and experimental characterization of microcombs with octave bandwidth, harmonic dispersive waves, and low carrier-envelope-offset frequency (fceo) for f-2f self-referencing. The method of tuning fceo is independent of changes in the spectral envelope.
Frequency Division of a Brillouin laser for robust ultralow-noise signal generation
Authors: Loh William , Gray Dodd , Irion Reed , May Owen , Belanger Connor , Plant Jason , Yegnanarayanan Sivasubramaniam
Published: September 2024

We divide a Brillouin laser to 10 GHz frequency to reach ultralow levels of phase noise of -95 dBc/Hz and -110 dBc/Hz at 10 Hz and 100 Hz offset frequencies.
Optical fiber bending-induced parabolic microresonator with ±0.01 pm-precise tunable and pm-small free spectrum range
Authors: Crespo-Ballesteros Manuel , Sumetsky Misha
Published: September 2024

By bending an optical fiber, we introduce a parabolic microresonator having more than 45 equally spaced eigenwavelengths whose free spectral range is continuously tuned between 1.09 and 1.73 pm with better than ±0.01 pm precision.
Temporal Solitons in Ring Resonators
Authors: Leo François
Published: September 2024

In this talk I will present our recent results about soliton generation in fiber and integrated resonators. I will discuss active solitons, parametrically driven solitons as well as electro-optic solitons.
Demonstration of Viability for Dual Comb Spectroscopy Using an Erbium Dual Comb Fiber Laser Based on Polarization Multiplexing
Authors: Collin Aldia P. E. , Perner Lukas W. , Ballentin Jonas K. C. , Łaszczych Zbigniew , Bahl Monika , Heckl Oliver H.
Published: September 2024

We demonstrate for the first t ime t he v iability o f d ual-comb spectroscopy using a free-running polarization-multiplexed erbium dual-comb laser. For the current laser parameters, we achieve an optical resolution of 4.152 GHz.
Polarization-Multiplexed Dual-Comb Generation with Tunable Repetition Rates
Authors: Liu Bowen , Dai Maolin , Shirahata Takuma , Yamashita Shinji , Set Sze Yun
Published: September 2024

We demonstrate a bidirectional polarization-multiplexed fiber laser and explore its potentials towards self-referenced dual-comb generation with tunable repetition rates. Regardless of ambient temperature fluctuations, the absolute deviation of dual-comb frequencies’ difference is within 0.52 Hz.
Visible-Light Fiber Amplifier Based on Halide Perovskite Quantum Dots
Authors: Wang Yue , Kang Chun Hong , Li Kuang-Hui , Ng Tien Khee , Ooi Boon S.
Published: September 2024

We report, for the first time, on a high optical gain visible-light amplifier of up to 22 dB using a facile dip-coating method of CsPbBr3 quantum dots on a fiber facet.
Using Colloidal Quantum Shells as a Novel Gain Medium for Integrated Visible Lasers
Authors: Tanghe I. , Waters A. , Huang J. , Molkens K. , Vandekerckhove T. , Van Thourhout D. , Zamkov M. , Geiregat P.
Published: September 2024

Colloidal Quantum Shells (QSs) are a class of novel solution-processible nanocrystals. In this work, their potential for optical gain is investigated and lasing with optical excitation is demonstrated.
Optimizing Optical and Scintillation Properties through the Replacement of Organic Chains, Ion Doping, and Anions in Two-Dimensional Perovskite Crystals
Authors: Birowosuto M. D. , Kowal D. , Sheikh M. A. K. , Mahato S. , Makowski M. , Maddalena F. , Dang C. , Arramel A. , Witkowski M. E. , Drozdowski W.
Published: September 2024

Enhancing two-dimensional perovskite crystals, low-temperature-solution-grown scintillators exhibit >10 photons/keV light yield and <10 ns decay time. Optical and scintillation properties are tuned by replacing ions and adding ion doping for timing and spectral applications.
An Ultra-high Concentration of Colloidal Quantum Dots for Efficient Light Generation in A Packaged LED
Authors: Huang Tzu Chia , Chang Ching , Huang Chung-Ping , Kuo Hao-Chung , Lin Chien-Chung
Published: September 2024

In this study, we propose various methods to increase the colloidal quantum dot (CQD) efficiency in a packaged LED. The amount of CQD is much higher than the regular concentration with some of them over 40% of weight percentage. The microcarriers were applied to hold the CQDs and an 63.5% improvement of color conversion efficiency can be observed.
Imaging-free, few-shot, three-dimensional focusing on point-like emitters in confocal microscopy
Authors: Sahoo Swetapadma , Jiang Junyue , Li Jaden , Loehr Kieran , Germany Chad E. , Zhou Jincheng , Clark Bryan K. , Bogdanov Simeon I.
Published: September 2024

We introduce a rapid, noise-robust, three-dimensional focusing framework for as-is confocal microscopes. We show automated real-time focusing on nanoscale emitters for SNR down to 1, and position tracking with a precision below 10 nm.
Phase-change-material integrated, phase-error corrected, resolution-enhanced Michelson Interferometer Fourier Transform Spectrometer
Authors: Shen Jianhao , Donnelly Daniel , Perera Asela , Chakravarty Swapnajit
Published: September 2024

We experimentally demonstrate a hybrid silicon waveguide integrated with phase change materials to enable active phase error correction for spectral decomposition in compact on-chip Fourier Transform spectrometer based on spatially heterodyned array of Michelson interferometers.
Multi-layer Optical Convolutional Neural Network with Nonlinear Activation
Authors: Huang Zheng , Wang Conghe , Shi Wanxin , Wu Shukai , Yang Sigang , Chen Hongwei
Published: September 2024

We present a compact multi-layer optical convolutional neural network for pre-sensor computing with nonlinear activation by masks and an image intensifier. This can off-load 83.1% computation to optics and achieve competitive accuracies for classification tasks.
Chemical kinetics study with a GHz mid-infrared dual-comb spectrometer
Authors: Hoghooghi Nazanin , Chang Peter , Egbert Scott , Burch Matt , Shaik Rizwan , Lynch Patrick , Diddams Scott , Rieker Gregory B.
Published: September 2024

We study abundance and temperature of species in reactant to product breakdown of 1,3,5-trioxane inside a shock-tube using a 1 GHz repetition rate mid-infrared dual-comb spectrometer with optical bandwidth > 30 THz.
High-resolution and High-rate Dual-comb FMCW Lidar with Coherent Comb Stitching
Authors: Cao Xianyi , Wang Long , Li Tianyi , Cai Minglu , Wu Guiling , Chen Jianping , Wu Kan
Published: September 2024

A dual-comb FMCW Lidar with coherent comb stitching (CCS) technique is firstly demonstrated. CCS can simultaneously achieve 65 GHz high frequency sweeping range, millimeter-level ranging resolution and 100 kHz high voxel acquisition rate.
Mode-Resolved Direct Frequency Comb Cavity Ring-Down Spectroscopy using an Interband Cascade Laser
Authors: Chen Tzu-Ling , Markus Charles R. , Ober Douglas C. , Sterczewski Lukasz A. , Huang Yi-Jan , Canedy Chadwick L. , Vurgaftman Igor , Frez Clifford , Meyer Jerry R. , Bagheri Maghmood , Okumura Mitchio
Published: September 2024

We demonstrate a mid-infrared mode-resolved direct frequency comb CRDS with a 3.27 µm interband cascade laser. Absorption for each comb line is extracted during cavity scanning. The compact design achieves a 1.7 km equivalent pathlength, showcasing sensitivity surpassing 4 × 10
−
7 cm
−
1.
Microcomb-Based Digital Holography
Authors: Amann Stephan , Vicentini Edoardo , Xu Bingxin , He Yang , Hänsch Theodor W. , Lin Qiang , Vahala Kerry , Picqué Nathalie
Published: September 2024

Lensless three-dimensional hyperspectral imaging is performed with a Kerr comb of 100 GHz line spacing. Broad microcombs will enable an unprecedented combination of long axial range, high precision and fast acquisition rate.
High Frequency Ytterbium Regenerative Amplifier Based on Yb:CALYO with sub-135 fs Pulses
Authors: Petrov Lyuben S. , Georgiev Kaloyan , Velkov Dimitar , Trifonov Anton , Xu Xiaodong , Grishin Mikhail , Buchvarov Ivan
Published: September 2024

We present enhanced functionalities of Yb-regenerative amplifier based on a single disordered Yb:CaYAlO4 crystal, providing a sub-135 fs and high repetition rates of 0.5–1 MHz ultrafast pulses of 6.3 Watts at 1043 nm.
Measurement and Thermal Description of Laser Ablation Threshold in Ultra-wide Pulse Durations
Authors: Endo Tsubasa , Tani Shuntaro , Sakurai Haruyuki , Kobayashi Yohei
Published: September 2024

We measured laser ablation thresholds for copper at pulse durations from 300 fs to 1 µs. We found a thermal description of the threshold to be valid for >5 ps.
Silicon Photonic Integrated Circuits for Heterodyne Interferometric Imaging of Incoherent Light Source
Authors: Chen Humphry , Fu Mingye , Shing Lawrence , Vasudevan Gopal , Kowalczyk Tony , Hurlburt Neal , Ben Yoo S.J.
Published: September 2024

We demonstrate a photonic-integrated-circuit heterodyne imaging system with polarization-diverse gratings, heterodyne mixing, and associated photonic components on-chip. Proof-of-principle experiments demonstrate spectrum recovery using two apertures.
Enhanced photoresponse beyond the bandgap spectral limit of a normal-incidence silicon photodetector by helium-ion implantation
Authors: Wang Zhao , Wen Xiaolei , Zou Kai , Meng Yun , Zeng Jinwei , Wang Jian , Hu Huan , Hu Xiaolong
Published: September 2024

We enhance the photoresponse beyond the bandgap spectral limit of a normal-incidence silicon photodetector by helium-ion implantation. The minimal detectable optical power is improved from −33.2 dBm to −63.1 dBm at 1550-nm wavelength.
High Sensitivity FSR-Free Sidewall Grating Slot Waveguide Microring Resonator Biochemical Sensors
Authors: Cheng Weiqing , Sun Xiao , Ye Shengwei , Yuan Bocheng , Marsh John H. , Hou Lianping
Published: September 2024

A compact sidewall grating slot microring resonator is demonstrated with a high sensitivity of 620 nm/RIU and a limit of detection of 1.4×10-4 RIU, offering an unbounded detection range.
FPGA-Programmable 512 Gbps 2.5D DWDM Photonic Network Interface Card
Authors: Robinson James , Hattink Maarten , Dai Liang Yuan , Haimowitz Max , Li Mao , Jang Daniel , Morrissey Padraic , Malik Arun Kumar , O’Brien Peter , Robertson Seth , Seok Mingoo , Bergman Keren
Published: September 2024

We present a 2.5D integrated, FPGA-programmable silicon photonic network interface card implementing a bidirectional 512Gbps dense wavelength-division multiplexed link. We demonstrate sixteen transmitter and eight of sixteen receiver channels operating error-free at 16 Gbps each.
Nonlinear Distortion Resilient Nyquist Sampling Receiver
Authors: Mandalawi Younus , Venugopalan Abhinand , Meier Janosch , Singh Karanveer , Hosni Mohamed I. , Yadav Deepanshu , Schneider Thomas
Published: September 2024

We experimentally studied the effect of nonlinear distortion on a Nyquist sampling receiver, that enables high-bandwidth signal detection with low-bandwidth devices. Our findings confirm resilience to MZM nonlinearities, reducing stringent parameters on the modulator design.
200-Gb/s/λ Linewidth-Tolerant Transmission Using Phase Retrieval Field Recovery
Authors: Huang Hanzi , Chen Haoshuo , Huang Yetian , Guo Cheng , Gao Qi , Fontaine Nicolas K. , Mazur Mikael , Dallachiesa Lauren , Ryf Roland , Li Zhengxuan , Song Yingxiong
Published: September 2024

Utilizing a phase retrieval receiver, we experimentally demonstrate 50-GBaud probabilistically shaped 64-QAM transmission over 40-km SSMF using a MHz-level uncooled DFB laser, achieving a net date rate exceeding 200 Gb/s.
Electrically Programmable Non-Volatile Silicon Photonic Content Addressable Memory (CAM) cell
Authors: Lian Chuanyu , Sun Hongyi , Huang Yi-Siou , Vitale Steven A. , Hu Juejun , Takeuchi Ichiro , Youngblood Nathan , Vagionas Christos , Ríos Ocampo Carlos A.
Published: September 2024

We experimentally demonstrate the first electrically programmable, non-volatile silicon photonic content addressable memory cell using Sb2Se3 phase change material on microring resonators, opening the path for light-based search operations in zero-power look-up tables.
Vis-NIR Broadband Dual-Comb Spectroscopy towards Highly-Functional Measurements with a High-Power, High-Coherence Fiber Comb System
Authors: Zhu Ruichen , Tian Haochen , Li Runmin , Xing Sida , Schibli Thomas R. , Kato Takashi , Asahara Akifumi , Minoshima Kaoru
Published: September 2024

We demonstrate the generation of a broadband high-power dual-comb source spanning from visible to NIR range based on nonlinear broadening and wavelength conversion of an Er fiber comb. Preliminary dual-comb measurements successfully retrieved the broad visible spectrum.
Sustained Robust Excitonic Radiation in Suspended Monolayer WSe2 within the Low Power Regime for Quantum Emitter Applications
Authors: Chen Zheng-Zhe , Chang Chiao-Yun , Tsai Ya-Ting , Tsai Po-Cheng , Lin Shih-Yen , Shih Min-Hsiung
Published: September 2024

We quantitatively demonstrate that suspended WSe2 monolayer exhibited remarkably higher percentage of excitonic emission against contacted WSe2 at low-pumping region, where Shockley–Read–Hall recombination dominates, highlighting its potential for developing compact, high-efficiency quantum emitters in the future.