3 papers
physics.optics2026
Edge-Enhanced Diffractive Neural Networks Based on Spin-Multiplexed Nonlocal Metasurfaces
Qianqian He, Kenan Guo, Jumin Qiu +2
Single-layer diffractive neural networks often face classification accuracy bottlenecks due to limited wavefront modulation capabilities. Edge detection, as an optical image proces…
physics.optics2025
Tunable edge and depth sensing via phase-change nonlocal metasurfaces
Kenan Guo, Yue Jiang, Shuyuan Xiao +1
Performing simultaneous depth-of-field (DoF) extension and edge enhancement within a single optical element remains a fundamental challenge in advanced imaging. Here, we propose a…
physics.optics2024
Continuous Varifocal Metalens Based on Phase-Change Material
Yilong Cui, Liang Hou, Kenan Guo +4
Metasurfaces have provided new opportunities for the realization of flat lenses, among which tunable metalenses have garnered considerable attention due to their flexible functiona…