Hybrid Longitudinal-Transverse Propagating Electric Fields in Photonic Crystal Waveguides

This paper presents a theoretical and experimental demonstration that breaking the in-plane mirror symmetry in one-dimensional antislot photonic crystal waveguides induces hybridization between longitudinal and transverse electric fields, creating tunable hybrid modes and a geometry-dependent photonic bandgap that enables advanced on-chip photonic functionalities.

Yanrong Zhang, Hooman Barati Sedeh, Christopher S. Whittington + 3 more2026-03-06🔬 physics.optics

Revealing the Topology invariance of vectorial vortex beam in complex media

This paper proposes a novel paradigm combining a topological non-separability measure derived from global Stokes fields with a physics-guided machine learning framework to achieve high-fidelity identification of vectorial vortex beam topological features up to 200, effectively bridging the gap between theoretical invariance and physical observability in extreme complex media.

Shuailing Wang, Jingping Xu, Yaping Yang2026-03-06🔬 physics.optics

Thermal stable nonlinear Raman-Nath diffraction and Cherenkov radiation in PPKTP crystals

This study experimentally demonstrates that periodically poled potassium titanyl phosphate (PPKTP) crystals exhibit significantly enhanced thermal stability compared to periodically poled lithium niobate (PPLN) for nonlinear Raman-Nath diffraction and Cherenkov radiation, making them highly promising for parallel optical computing applications.

Tao Xie, YangMing Liu, WenXin Zhu + 2 more2026-03-06🔬 physics.optics

Beam Geometry-Controlled Nonequilibrium Formation of WS2/CsPbBr3 Hybrids and Interfacial Carrier Dynamics

This study demonstrates that using femtosecond Bessel beam laser ablation, rather than Gaussian beams, enables the scalable, defect-controlled synthesis of WS2/CsPbBr3 hybrids with optimized interfacial carrier dynamics and extended lifetimes by leveraging axially extended energy distribution to minimize thermal damage while exceeding electronic destabilization thresholds.

Rajendra Kumar Challa, M. S. S. Bharathi, Rahul Murali + 2 more2026-03-06🔬 physics.optics

Real-Space Plasmon Imaging Reveals Modified Electronic Structure of Gold at the Monolayer Limit

This study presents the first optical characterization of a stable, quasi-freestanding gold monolayer formed by intercalating gold between graphene and SiC, revealing that its modified electronic structure supports mid-infrared plasmon-polaritons with a Drude weight nearly double that of bulk gold, thereby establishing it as a viable two-dimensional metal for nanoscale photonics and electronics.

Andrei Bylinkin, Philippe Roelli, Naveen Shetty + 8 more2026-03-06🔬 cond-mat.mtrl-sci

Integrated Microcomb-Driven Vortex Electromagnetic Waves for Broadband Forward-looking Sensing

This paper presents a chip-scale microwave photonic architecture using a dissipative Kerr soliton microcomb to generate broadband, high-purity vortex electromagnetic waves with 15 programmable orbital angular momentum modes, enabling superior forward-looking sensing that overcomes the diffraction limits of conventional microwave systems.

Guanqun Sun, Zhekai Zheng, Jiacheng Guo + 6 more2026-03-06🔬 physics.optics

Self-organization of cavity solitons in Brillouin-Kerr ring resonators

This study demonstrates that the interplay between four-wave mixing and cascade Brillouin lasing in coherently driven passive optical-fibre resonators spontaneously generates highly stable, paracrystalline patterns of temporal cavity solitons locked by long-range acoustic oscillations, a phenomenon accurately described by a unified mean-field model.

Corentin Simon, Matteo Conforti, Loïc Van Bellinghen + 4 more2026-03-06🔬 physics.optics

Pulse-duration-sensitive high harmonics and attosecond locally-chiral light from a chiral topological Weyl semimetal

This theoretical study demonstrates that pulse-duration-sensitive high harmonic generation in the chiral Weyl semimetal RhSi not only extends to higher photon energies by promoting multi-band excitations but also enables the synthesis of attosecond locally chiral light with pronounced circular dichroism, offering a pathway toward compact chiral light sources and topological electronics.

Alba de las Heras, Ofer Neufeld, Angel Rubio2026-03-06⚛️ quant-ph

Impact of scissors-correction schemes on second-harmonic generation in ultraviolet nonlinear-optical crystals

This study introduces a unified static-limit formulation to compare two scissors-correction schemes for calculating second-harmonic generation in ultraviolet nonlinear-optical crystals, revealing that while both preserve spectral shapes, scheme-N yields systematically larger magnitudes and that apparent violations of Kleinman symmetry in practice stem from sum-rule approximations rather than the underlying theory.

YingXing Cheng, Zhihua Yang, Shilie Pan2026-03-06🔬 physics.optics