Dynamically switchable edge-detection and bright-field imaging based on a phase-change nonlocal metasurface [0.03%]
基于相变非局部元表面的动态可切换边缘检测和亮场成像
Kenan Guo,Shuyuan Xiao,Tingting Liu
Kenan Guo
Optical metasurfaces offer significant advantages in enhancing the speed, efficiency, and miniaturization of imaging systems. However, most existing metasurfaces are limited to static functionalities and lack reconfigurability, which is a k...
Ultra-flat electro-optic frequency comb based on a chirp-modulated lithium niobate resonator [0.03%]
基于啁啾调制铌酸锂谐振器的超平坦电光频率梳
Yujie Zhang,Tao Jia,Jiamin Rong et al.
Yujie Zhang et al.
Chirp modulation can generate a relatively flat electro-optic frequency comb (EO comb) and offers the advantage of frequency reconfigurability, demonstrating significant potential in high-precision sensing and absorption spectroscopy measur...
Meta-coupler empowered dynamic wavefront control with on-chip polarization reconfiguration [0.03%]
元耦合器赋能的动态波前控制与片上偏振重构技术
Bin Fang,Yantao Li,Yu Lei et al.
Bin Fang et al.
Metasurfaces consisting of subwavelength structures have shown unparalleled capability in light field manipulation. However, their functionalities are typically static after fabrication, limiting their practical applications. Though persist...
Selective processing of CFRP by two-color double-pulse femtosecond laser [0.03%]
采用双色飞秒激光双脉冲选择性加工CFRP材料
Huan Yao,Meiling Chen,Lan Jiang et al.
Huan Yao et al.
This paper employed a two-color double-pulse femtosecond laser (TDFL) technology for surface processing of carbon fiber reinforced polymers (CFRP). By exploring the changes in ablation thresholds for resin and carbon fiber under varying wav...
PSLFM: a single-frame uncalibrated photometric stereoscopic light field measurement scheme based on dense convolutional neural networks [0.03%]
基于密集卷积神经网络的单帧非标定光度立体光场测量方法（PLSFM）
Kaiyi Zhang,Xing Zhao,Ya Wen et al.
Kaiyi Zhang et al.
In the realm of 3D measurement, photometric stereo excels in capturing high-frequency details but suffers from accumulated errors that lead to low-frequency distortions in the reconstructed surface. Conversely, light field (LF) reconstructi...
Construction of optical lattice-type skyrmion arrays in tightly focused electromagnetic field [0.03%]
紧聚焦电磁场中光学晶格型skyrmion阵列的构造研究
Canghai Wang,Jiming Wang,Can Huang et al.
Canghai Wang et al.
By utilizing the time inversion of radiation from spatial dipole arrays, we propose a method for constructing the spatial lattice-type skyrmion arrays under 4π focusing conditions, including Néel-, Bloch-, and Anti-skyrmions/merons. The R...
Efficient evaluation of the Jacobian in the damped least-squares method for optical design problems using algorithmic differentiation [0.03%]
利用算法微分在阻尼最小二乘法中有效计算光学设计问题的雅克比矩阵
Tobias Seger,Christoph Menke,Matthias Sonntag et al.
Tobias Seger et al.
The fast evaluation of the Jacobian is an essential part of the optimization of optical systems using the damped least-squares algorithm. While finite differences provide an intuitive way to approximate derivatives, algorithmic differentiat...
RecNet: advanced encoder-decoder architecture for SHG-FROG pulse reconstruction with enhanced noise immunity and convergence [0.03%]
具备增强的抗噪性和收敛性的SHG-FROG脉冲重建的先进编解码架构RecNet
Haili Sun,Wenjiang Tan,Yucong Yin et al.
Haili Sun et al.
This paper presents RecNet, an innovative convolutional neural network designed for reconstructing cecond harmonic generation frequency-resolved optical gating (SHG-FROG) traces. Unlike conventional approaches, RecNet incorporates noiseless...
Ziyang Liu,Tianjiao Zeng,Xu Zhan et al.
Ziyang Liu et al.
Lensless imaging offers a lightweight, compact alternative to traditional lens-based systems, ideal for exploration in space-constrained environments. However, the absence of a focusing lens and limited lighting in such environments often r...
Optical lattices with variable spacings generated by binary phase transmission gratings [0.03%]
由二元相位传输光栅生成的间距可变光学晶格
Hyok Sang Han,Ahreum Lee,Sarthak Subhankar et al.
Hyok Sang Han et al.
Optical accordion lattices are routinely used in quantum simulation and quantum computation experiments to tune optical lattice spacings. Here, we present a technique for creating tunable optical lattices using binary-phase transmission gra...