Dynamic response characteristics of optical beam deflection in liquid crystal optical phased array [0.03%]
液晶光学相控阵光束偏转的动态响应特性分析
Yi Zhang,Qidong Wang,Huilin Jiang et al.
Yi Zhang et al.
The beam deflector based on liquid crystal optical phased array (LCOPA) is a crucial component of space laser communication systems. Understanding and mastering the beam deflection characteristics under the dynamic response of LCOPA is esse...
Space-time reconstruction for lensless imaging using implicit neural representations [0.03%]
基于隐式神经表示的无镜头成像时空重建方法
Tiffany Chien,Ruiming Cao,Fanglin Linda Liu et al.
Tiffany Chien et al.
Many computational imaging inverse problems are challenged by noise, model mismatch, and other imperfections that decrease reconstruction quality. For data taken sequentially in time, instead of reconstructing each frame independently, spac...
Improving the rising edge of the temporal contrast of PHELIX by spatial conditioning in an unfolded stretcher [0.03%]
通过展开 stretcher 中的空间调理提高 PHELIX 的时间对比度的上升边缘
Simon Roeder,Yannik Zobus,Zsuzsanna Major et al.
Simon Roeder et al.
We showcase a new, unfolded stretcher setup at the PHELIX facility that incorporates a beam expander for spatial conditioning of the rising edge in the temporal contrast. With this purely optical technique we are able to improve the rising-...
Bin-Juan Lei,Jian-Cheng Li,You-Ling Chen et al.
Bin-Juan Lei et al.
We have proposed and experimentally demonstrated a novel chaotic signal generator using a solitary deformed square microcavity laser. The carrier density in the microcavity laser exhibits periodic or chaotic oscillation due to the interacti...
Deep learning based measurement accuracy improvement of high dynamic range objects in fringe projection profilometry [0.03%]
基于深度学习的条纹投影 profilometry 中高动态范围物体测量精度改进方法
Mengmeng Shen,Liangbo He,Haihua Zhang et al.
Mengmeng Shen et al.
One of the key factors affecting the accuracy of three-dimensional (3D) measurement in fringe projection profilometry (FPP) is the phase retrieve accuracy. In the 3D measurement of high dynamic range (HDR) objects, fringe saturation and/or ...
Diffractive microoptics in porous silicon oxide by grayscale lithography [0.03%]
灰度光刻技术在多孔硅氧化物中制备衍射微光学元件
Leander Siegle,Dajie Xie,Corey A Richards et al.
Leander Siegle et al.
We demonstrate focusing as well as imaging using diffractive microoptics, manufactured by two-photon polymerization grayscale lithography (2GL), that have been 3D printed into porous silicon oxide. While typical doublet lens systems require...
Generation of strong mechanical squeezing through the joint effect of two-tone driving and parametric pumping [0.03%]
两音调驱动和参量泵浦的合力产生强机械挤压态
Xiao-Jie Wu,Huan-Huan Cheng,Qiannan Wu et al.
Xiao-Jie Wu et al.
We propose an innovative scheme to efficiently prepare strong mechanical squeezing by utilizing the synergistic mechanism of two-tone driving and parametric pumping in an optomechanical system. By reasonably choosing the system parameters, ...
Innozag amplifier: optimizing the Innoslab platform to improve beam quality and gain [0.03%]
利用Innoslab平台优化放大器的光束质量和增益发明：innozag放大器
Mohanna Najafi,Mahdi Shayganmanesh,M Mahdi Majidof et al.
Mohanna Najafi et al.
This study presents an innovative zigzag-type Innoslab amplifier platform, termed 'Innozag,' that merges the essential attributes of both Innoslab and zigzag slab amplifiers. A thorough theoretical and experimental examination has been perf...
Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence [0.03%]
工作于Littrow入射的偏振不敏感高效率二维介质光栅耦合器
Mingle Qiao,Yongfang Xie,Shihao Kang et al.
Mingle Qiao et al.
In this paper, a transmission two-dimensional (2D) all-dielectric grating with cuboid arrays is proposed, which has high diffraction efficiency and good polarization independence under Littrow mounting conditions at an incident wavelength o...
Error analysis model-driven workflow for self-calibration stitching testing of X-ray flat surfaces [0.03%]
基于模型驱动的工作流程的X射线大平面自校准拼接检测误差分析方法
Yong Liu,Haopeng Jian,Shuai Xue et al.
Yong Liu et al.
Self-calibration stitching test is widely utilized for testing X-ray flat surfaces. Various factors, including environment disturbances, motion errors, misalignments, overlapping ratios, and sub-aperture sizes can affect the accuracy. Previ...