Enhanced 2.7 µm wavelength sub-80 ns pulse generation via iron-chromium co-doped ZnS polycrystalline [0.03%]
通过铁和铬共掺杂的ZnS多晶生成增强的2.7µm波长亚80ns脉冲
Shuaiyi Zhang,Xiaohui Hu,Xiangzheng Kong et al.
Shuaiyi Zhang et al.
Zinc-sulfide (ZnS) polycrystalline co-doped with Cr2+ and Fe2+ ions, when used as a saturable absorber (SA), exhibits a longer recovery time and a larger excited state absorption cross-section compared to Fe:ZnS polycrystalline, due to the ...
Complete model identification for measuring photodetector's data age in high-speed and high-precision interferometry [0.03%]
高速高精度干涉测量中光电探测器数据老化完全模型识别方法
Yunke Sun,Zhaoyang Zhang,Xu Xing et al.
Yunke Sun et al.
Data age in photodetectors is a key indicator in high-speed and high-precision interferometry. Accurately measuring it is essential for ensuring timely control of high-speed movement and synchronization in dynamic calibration. Current metho...
Analysis and correction of phase calculation errors introduced by residual coherence in short-coherence heterodyne interferometry [0.03%]
短相干度异频干扰法中剩余相干性引入的相位计算误差分析与校正
Sizepeng Zhao,Anqi Liu,Shuai Yang et al.
Sizepeng Zhao et al.
Short-coherence heterodyne interferometry is believed to be a novel common-path interferometric measurement technique that relies on a short-coherence heterodyne laser source as its critical core component. This approach offers high precisi...
Terahertz time-of-flight tomography algorithm for different curvature samples [0.03%]
曲率不同的样品太赫兹飞行时间层析成像算法
Yu Zhou,Quanyong Li,Zongyu Cui et al.
Yu Zhou et al.
Traditional guide rail-based terahertz reflection tomography works well with planar samples and complements transmission tomography. Most imaging methods perform effectively with plane-like or simple curvature samples. However, these method...
320 Gbps co-planar stripline Mach-Zehnder modulator on a generic indium phosphide integrated photonics platform [0.03%]
一种通用的磷化铟集成光子平台上的共面地带式马赫曾德尔调制器（调制速率320Gbps）
James Arthur Hillier,Arezou Meighan,Qian Hu et al.
James Arthur Hillier et al.
We present the design and characterization of co-planar stripline Mach-Zehnder modulators on an InP platform. The co-planar design exhibited 50 Ω impedance with velocity-matched optical and electrical signals. We investigated devices with ...
Nanosecond laser-induced surface damage growth and its mechanism of single crystal CaF2 (111) at 193 nm [0.03%]
纳秒激光在193nm下单晶氟化钙（111）表面损伤演化及其机理研究
Chong Shan,Huamin Kou,Dapeng Jiang et al.
Chong Shan et al.
The damage growth of calcium fluoride crystal (CaF2) induced by 193 nm laser irradiation poses a significant risk to the operation of deep-ultraviolet photolithography. It is crucial to explore the damage growth characteristics and mechanis...
Spectroscopy and SESAM mode-locking of a disordered Yb:Gd2SrAl2O7 crystal [0.03%]
无序Yb:Gd2SrAl2O7晶体的光谱学及SESAM锁模研究
Huang-Jun Zeng,Zhang-Lang Lin,Pavel Loiko et al.
Huang-Jun Zeng et al.
We report on the polarized spectroscopy, continuous-wave laser operation, and mode-locked laser performance of an ytterbium-doped disordered tetragonal rare-earth strontium aluminate crystal, Yb3+:Gd2SrAl2O7. In the continuous-wave regime, ...
Channel-resolved photoionization time delay of hydrogen atoms in two-color ultraviolet laser fields [0.03%]
双色极紫外激光场中氢原子通道分辨的光电子摄动时间延迟
Xuan-Hong Gao,Wen-Quan Jing,Jin-Xu Du et al.
Xuan-Hong Gao et al.
We investigate theoretically the phase-dependent photoelectron spectra in resonance-enhanced multiphoton ionization (REMPI) of hydrogen atoms with 200-400-nm ultraviolet laser fields by solving the time-dependent Schrödinger equation. Unli...
Dynamic graphical control of camouflage color with microwave/infrared stealth based on electromagnetic metastructures [0.03%]
基于电磁超构表面的微波/红外隐身动态图形化控色伪装技术
Zhihui Yang,Yuhan Yang,Xiaotong Zhao et al.
Zhihui Yang et al.
Ground targets in complex environments demand adaptive camouflage that dynamically blends with the background. Conventional adaptive chromic materials often overlook radar wave absorption and infrared radiation reduction, compounded by rigi...
Low complexity fiber nonlinearity compensation scheme fusing single-channel digital back propagation with dual phase-conjugate twin waves for DSCM-WDM system [0.03%]
一种基于单通道数字后向传播与双相共轭补偿的DSCM-WDM系统非线性效应融合补偿方案
Wanxiang Bi,Chenglin Bai,Tianchi Chen et al.
Wanxiang Bi et al.
In coherent systems combining digital subcarrier multiplexing (DSCM) and wavelength division multiplexing (WDM), signals are subject to self-subcarrier nonlinearity (SSN), cross-subcarrier nonlinearity (CSN), and cross-phase modulation (XPM...