247 papers
This paper reports the first experimental demonstration of a resonant optical diagonal Tellegen effect in a metasurface composed of randomly distributed cobalt-silicon nanoscatterers, achieving a response 100 times stronger than natural materials and enabling bias-free nonreciprocal optical devices.
This study employs a stochastic-process model to demonstrate that the optimal autocorrelation of time-series signals for solving multi-armed bandit problems depends on the reward environment, with negative autocorrelation being advantageous in reward-rich settings and positive autocorrelation in reward-poor ones, while performance remains independent of autocorrelation when the sum of winning probabilities equals one.
This paper demonstrates a reconfigurable nanophotonic interface on thin-film lithium niobate that utilizes nonlinear Čerenkov radiation in integrated microring resonators to generate and engineer multidimensional structured light, including optical vortices, skyrmions, and vortex microcombs, directly from chip to free space.
This paper introduces a high-precision 3D cellular force measurement technique that utilizes fluorescent nanodiamonds to directly quantify micropillar rotational angles via optically detected magnetic resonance and laser polarization modulation, thereby overcoming the resolution limits and deformation assumptions of conventional displacement-based methods.
This paper proposes and experimentally demonstrates an optics-free classical ghost imaging scheme using visible light and digital micromirror devices to generate grayscale and binary amplitude-only computer-generated holograms, enabling high-quality cross-correlation imaging that is particularly promising for wavelength regimes like X-rays where conventional optics are unavailable.
This paper expands a previously developed FDTD-based numerical pipeline to quantitatively model coherent nonlinear microscopy, specifically third-harmonic generation, in axially layered anisotropic materials obeying Kleinman Symmetry, thereby overcoming prior limitations regarding diagonal-only nonlinear susceptibilities and enabling better interpretation of images affected by sample linear heterogeneity.
This paper demonstrates that post-fabrication ion beam irradiation can effectively tune the dissipative losses of chiral dielectric metasurfaces to achieve critical coupling, thereby enhancing circular dichroism from 0.70 to 0.85 and offering a new pathway for optimizing optical chirality in engineered nanostructures.
This comment argues that the "real-space spin Chern number" proposed in a recent Physical Review Letters article is not a novel topological invariant but is mathematically equivalent to the Euler characteristic of the surface as described by the Chern-Gauss-Bonnet theorem, thereby characterizing the geometry of the surface rather than the polarization state of the optical field.
This paper presents a unified theoretical model incorporating spatial and temporal gain dynamics that elucidates the distinct mechanisms—Q-switching interplay for below-threshold and Kerr nonlinearity/dispersion dominance for above-threshold—driving breathing solitons in fibre lasers, a framework validated by experimental observations.
Using time-resolved spectroscopy and open-dissipative Gross-Pitaevskii modeling, this study reveals that inter-mode coherent energy transfer driven by an incoherent excitonic reservoir causes ultrafast picosecond population oscillations in a ballistically propagating exciton-polariton condensate.
This paper theoretically proposes a compact, electrically driven terahertz lasing mechanism that utilizes the Berry curvature dipole in a DC-biased, low-symmetry two-dimensional material within a Fabry-Perot cavity to achieve bias-tunable, chiral coherent emission without requiring complex multi-layer device structures.
This paper introduces mid-wave infrared photothermal (MWIP) microscopy, a technique operating in the 2000–2500 nm spectral window that achieves submicron-resolution, depth-resolved molecular and metabolic imaging of endogenous biomolecules and drug transport in deep tissues and intact tumor spheroids by leveraging a dark-field detection scheme to suppress water background.
This paper demonstrates that quantum mechanical operator techniques provide an elegant and powerful alternative framework for deriving and validating the propagation of and paraxial beams with Airy-type initial conditions, confirming theoretical predictions through experimental agreement.
This paper presents a proof-of-principle high-dimensional quantum key distribution protocol using position-momentum entanglement that achieves 5.07 bits per photon with 90 modes and theoretically demonstrates the potential to scale to over 700 Mb/s with 4400 modes using advanced sources and detectors.
This paper presents a theoretical framework demonstrating that hyperbolic phonon polaritons in anisotropic 2D materials, such as -MoO, can mediate and enhance long-range, highly directional mid-infrared energy transfer between dipoles at room temperature, extending interactions far beyond the near-field limits of conventional platforms.
This paper demonstrates a programmable high-dimensional temporal mode processor using a Raman quantum memory in warm cesium vapor, which enables on-demand storage, filtering, and conversion of orthogonal temporal waveforms to serve as a coherent interface between MHz- and GHz-bandwidth modes for scalable quantum networks.
This paper presents a compact, intensity-based phase retrieval method for convergent beams that utilizes a practical Fourier-transform recipe to adapt multi-plane Gerchberg-Saxton reconstruction, thereby reducing the size, weight, and cost of nonlinear curvature wavefront sensors while maintaining robustness and improving signal-to-noise ratio.
This paper proposes a multi-Agent collaborative architecture that integrates Large Language Models with existing optical network O&M tools to automate key tasks like channel management and fault resolution, thereby establishing a conceptual framework for future autonomous, closed-loop network operations.
This paper demonstrates that low-contrast silicon metasurfaces supporting quasi-bound states in the continuum can achieve single-nanoparticle resolution by detecting step-like shifts in resonance wavelength, linewidth, and amplitude caused by the binding of individual 100 nm particles.
This paper demonstrates that utilizing passively phase-stable standing waves within an integrated optical control system enables rapid, multi-mode laser cooling of trapped calcium ions to the quantum ground state, significantly outperforming conventional running-wave schemes in cooling speed, bandwidth, and final phonon occupancy.