Xi'an Institute of Optics and Precision Mechanics

Spectrally stable dispersion matching for peridynamic approximation of periodic atomistic chains

Peridynamics and atomistic lattice models both describe motion through nonlocal interactions, but a generic peridynamic kernel does not necessarily reproduce atomistic dispersion. This article constructs a spectrally stable, dispersion-matched peridynamic approximation for one-di...

PVmatAgent: A Large Language Model (LLM) Agent for Perovskite Photovoltaic Material Design and Analysis

ABSTRACT The rapid advancement of large language models (LLMs) has opened new opportunities for materials informatics. However, LLMs fall short in photovoltaic (PV) material design due to their lack of domain grounding, unreliable outputs, and inability to perform integrated comp...

Optical phased array LiDAR chips towards polarization-resolved 4D sensing

Optical phased array (OPA)-based LiDAR technology provides high-speed, solid-state sensing for autonomous vehicles, robotics, and aerial systems. However, current OPA-based LiDAR platforms lack the ability to accurately recognize and classify materials, limiting their effectivene...

Deformable Sparse-Gradient Regularization for Extreme Image Denoising

Extreme noise severely degrades image quality in photon-limited imaging systems and challenges existing denoising methods. Classical total variation (TV) models rely on fixed local gradients and often introduce cross-edge smoothing, while deep learning methods may become unstable...

Microcomb-driven large-scale fully connected quantum network

Abstract Fully connected quantum networks enable simultaneous connection of every user to every other user and are a highly versatile and robust networking architecture. However, the scalability of such networks remains a great challenge for practical applications. Here we constr...