physics.optics papers | Gist.Science

Bridge Scaling in Conditioned Henyey-Greenstein Random Walks

This paper uses Monte Carlo simulations to demonstrate that fixed-length bridge paths in three-dimensional Henyey-Greenstein random walks exhibit four significant deviations from classical Brownian-excursion theory—such as super-diffusive amplitude scaling and a Rayleigh midpoint distribution—due to the walk's evolution on a two-dimensional Markovian state space, raising the question of whether these anomalies represent a permanent universality-class shift or a slow crossover.

Claude Zeller (Claude Zeller Consulting LLC)Thu, 12 Ma🔬 cond-mat

Fast Programming of In-Plane Hyperbolic Phonon Polariton Optics Through van der Waals Crystals using the Phase-Change Material In3SbTe2

This paper demonstrates a fast and reconfigurable method for programming in-plane hyperbolic phonon polariton optics by using optical laser pulses to create tailored launching and confining nanostructures in the phase-change material In3SbTe2 beneath α-MoO3 flakes, enabling precise alignment and dynamic control of polariton propagation without time-consuming conventional nanofabrication.

Lina Jäckering, Umberto Saldarelli, Aaron Moos, Lukas Conrads, Enrique Terán-García, Christian Lanza, Aitana Tarazaga Martín-Luengo, Gonzalo Álvarez-Pérez, Pablo Alonso-González, Matthias Wuttig, Thomas TaubnerThu, 12 Ma🔬 physics.optics

Photonic nanojets as emergent free-space power flux funnels

This paper introduces a reduced local field model that reinterprets photonic nanojets as emergent free-space power flux funnels sustained by effective transverse modes, providing a self-consistent explanation for their morphology and confinement limits that bridges full-wave Maxwell fields with a simplified oscillator description.

Mirza Karamehmedovic, Cristian Placinta, Tobias Abilock Mikkelsen, Jesper GlückstadThu, 12 Ma🔬 physics.optics

A fully solution-processed organic microcavity laser in the strong light-matter coupling regime

This paper reports the first fully solution-processed organic microcavity laser operating in the strong light-matter coupling regime, demonstrating reversible polariton condensate redistribution and establishing a scalable, low-cost route for polaritonic and quantum photonic technologies.

Hassan A. Qureshi, Henri Lyyra, Akseli Korkeamäki, Oskar Tuomi, Antti J. Moilanen, Konstantinos S. DaskalakisThu, 12 Ma🔬 cond-mat.mtrl-sci

Light-Matter Interactions Beyond the Dipole Approximation in Extended Systems Without Multipole Expansion

This paper presents a computationally efficient theoretical framework based on the Power-Zienau-Woolley Hamiltonian and maximally localized Wannier functions that accurately captures light-matter interactions beyond the electric-dipole approximation in extended systems without requiring finite-order multipole expansions, thereby enabling precise first-principles simulations of spatially structured light dynamics in nanoscale materials.

Rishabh Dora, Roman Korol, Vishal Tiwari, Rahul Chourasiya, Ignacio FrancoThu, 12 Ma⚛️ quant-ph

Deep learning assisted inverse design of nonreciprocal multilayer photonic structures

This paper demonstrates that deep learning models, specifically forward neural networks, inverse design networks, and variational autoencoders, can significantly reduce computational costs and improve performance by enabling rapid, accurate prediction and efficient generation of nonreciprocal multilayer photonic structures.

Weiran Zhang, Hao Pan, Shubo WangThu, 12 Ma🔬 physics.optics

Solid-state laser cooling of Yb3+-doped KY3F10 to 145 K

This paper reports the successful laser cooling of Yb3+-doped KY3F10 crystals to 145 K and 151 K using a 100-W pump source, establishing the material as a competitive alternative to Yb:YLF for solid-state optical cryocooling.

Luca Koldeweyh, Stefan Püschel, Zoe Liestmann, Hiroki TanakaThu, 12 Ma🔬 physics.optics

Vectorial engineering of second-harmonic generation in silicon-based waveguides integrated with 2D materials

This paper demonstrates that accounting for the full vectorial and tensorial nature of electromagnetic fields and second-order susceptibility in silicon nitride waveguides integrated with monolayer MoS $_2$ enables efficient, phase-matched cross-polarized second-harmonic generation, achieving a 220-fold enhancement over free-space excitation and establishing fundamental design guidelines for 2D-material-based nonlinear photonic devices.

Mohd Rehan, Nathalia B. Tomazio, Alisson R. Cadore, Daniel F. Londono-Giraldo, Daniel A. Matos, Gustavo S. Wiederhecker, Christiano J. S. de MatosThu, 12 Ma🔬 physics.app-ph

Arbitrary Polarization Generation in Magneto-optical Metasurfaces Enabled by Bound States in the Continuum

This paper demonstrates a magneto-optical metasurface that utilizes an external magnetic field to transform symmetry-protected bound states in the continuum into tunable quasi-BICs, enabling the continuous generation of arbitrary polarization states at normal radiation without requiring structural modifications.

Siyuan Gao, Guangtai Lu, Satoshi Iwamoto, Yasutomo OtaThu, 12 Ma🔬 physics.optics

Single-shot in situ pulse-duration measurement using plasma grating

This paper presents a direct, single-shot, in situ diagnostic method using a plasma grating to accurately measure the pulse duration of ultra-intense laser pulses at the focal region, overcoming the damage and spatial averaging limitations of existing techniques.

Jimin Wang, Yanlei Zuo, Kainan Zhou, Zhaoli Li, Pengyu Wei, Xiao Wang, Jie Mu, Xiaodong Wang, Xiaoming Zeng, Zhaohui Wu, Hao Peng, C. Riconda, S. WeberThu, 12 Ma🔬 physics.optics

Information-Theoretic Spectroscopy: Universal Sparsity of Extinction Manifold and Optimal Sensing across Scattering Regimes

This paper demonstrates that the optical extinction manifold of dielectric materials exhibits intrinsic sparsity best captured by the Discrete Cosine Transform rather than the FFT, enabling a compressed sensing architecture that achieves high-fidelity material reconstruction with a 51–94% reduction in hardware sensors by overcoming traditional Nyquist limits.

Proity Nayeeb AkbarThu, 12 Ma🔬 physics.app-ph

Frozen mode in coupled single-mode waveguides with gratings

This paper presents a systematic methodology for designing and fabricating slow-light photonic integrated circuits based on third-order exceptional points (stationary inflection points) in three-way coupled waveguides with lateral gratings, demonstrating their feasibility for delay functionalities in standard silicon platforms.

Albert Herrero-Parareda, Nathaniel Furman, Bradley J. Thompson, Ricky Gibson, Ilya Vitebskiy, Filippo CapolinoThu, 12 Ma🔬 physics.optics

Avalanche Sensing via Kerr frequency comb in an Optical Microcavity

This paper proposes and validates a novel avalanche sensing scheme that leverages Kerr nonlinearity in optical microcavities to amplify weak perturbations through abrupt state transitions in frequency combs, thereby overcoming the sensitivity limitations of traditional frequency-shift detection methods.

Chenchen Wang, Qingyi Zhou, Lan Yang, Zongfu YuThu, 12 Ma🔬 physics.optics

Learning Latent Transmission and Glare Maps for Lens Veiling Glare Removal

This paper proposes VeilGen, an unsupervised generative model that learns latent transmission and glare maps to synthesize realistic veiling glare datasets, and DeVeiler, a restoration network that leverages these maps to effectively remove veiling glare from simplified optical systems.

Xiaolong Qian, Qi Jiang, Lei Sun, Zongxi Yu, Kailun Yang, Peixuan Wu, Jiacheng Zhou, Yao Gao, Yaoguang Ma, Ming-Hsuan Yang, Kaiwei WangMon, 09 Ma🔬 physics.optics

RF heating-enhanced photoacoustic tomography

This paper introduces RF Heating-Enhanced Photoacoustic Tomography (HEPAT), a novel imaging modality that integrates a low-cost RF heater with photoacoustic tomography to map RF absorption via temperature-dependent thermomechanical changes, thereby providing complementary contrast and expanding diagnostic capabilities without the need for expensive RF sources.

Skyler P. Selvin, XuanHao Wang, Handi Deng, Bohua Chen, Cheng MaMon, 09 Ma🔬 physics.optics

Online unsupervised Hebbian learning in deep photonic neuromorphic networks

This paper presents and experimentally demonstrates a purely photonic deep neuromorphic network that achieves 100% accuracy on a letter recognition task by utilizing a local optical feedback mechanism with non-volatile phase-change material synapses to enable online, unsupervised Hebbian learning without inefficient optical-electrical-optical conversions.

Xi Li, Disha Biswas, Peng Zhou, Wesley H. Brigner, Anna Capuano, Joseph S. Friedman, Qing GuMon, 09 Ma🔬 physics.optics

Laser interferometry as a robust neuromorphic platform for machine learning

This paper presents a robust neuromorphic platform for machine learning that implements optical neural networks using only linear optical resources and coherent states, achieving necessary nonlinearity through phase-shift encoding to enable straightforward experimental in situ training and inference while demonstrating high resilience to photon losses.

Amanuel Anteneh, Kyungeun Kim, J. M. Schwarz, Israel Klich, Olivier PfisterMon, 09 Ma🔬 physics.optics

First-Return Statistics in Henyey-Greenstein Scattering: Colored Motzkin Polynomials and the Cauchy Kernel

This paper establishes a computationally efficient framework that maps three-dimensional Henyey-Greenstein scattering in a semi-infinite medium to one-dimensional combinatorial first-passage theory by introducing an empirically derived Boundary Truncation Factor, accurately modeled by a Cauchy kernel for moderate anisotropy, to calculate first-return statistics for photons under arbitrary incidence angles.

C Zeller, R CorderyMon, 09 Ma🔬 physics.optics

Integrating the advantages of two single-pixel imaging schemes via holographic projection in ghost-imaging systems

This paper presents a lensless ghost imaging system that integrates two single-pixel imaging schemes via computer-generated holographic projection to achieve high-frame-rate operation, significantly improved image visibility, and the flexible generation of positive and negative image copies.

Liming Li, Zhenguo Zhao, Gongxiang Wei, Wenfei Zhang, Huiqiang LiuMon, 09 Ma🔬 physics.optics

Chiral exceptional bound states in the continuum: a higher-order singularity for on-chip control of quantum emission

This paper presents a fully integrable and reconfigurable dual-microring platform that utilizes chiral exceptional bound states in the continuum as a higher-order non-Hermitian singularity to achieve unprecedented dynamic control over quantum emission properties, including Purcell enhancement and lineshape, with significantly improved reconfiguration efficiency for on-chip quantum photonic applications.

Jin Li, Kexun Wu, Qi Hao, Yan Chen, Jiawei WangMon, 09 Ma🔬 physics.optics

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