On-chip reconfigurable diffractive optical neural network based on Sb2S3 [0.03%]
基于硫化锑的片上可重构衍射光学神经网络
Yifan Wang,Wei Lin,Shaoxiang Duan et al.
Yifan Wang et al.
A Sb2S3-based reconfigurable diffractive optical neural network (RDONN) for on-chip integration is proposed. The RDONN can be integrated into standard silicon-on-insulator systems, offering a compact, passive, all-optical solution for imple...
Detailed study of laser diode array collimation based on a tolerancing analysis [0.03%]
基于容差分析的激光二极管阵列准直研究
Marcus Baumgart,Andreas Hofbauer,Marcus Hennecke et al.
Marcus Baumgart et al.
This work investigates how misalignments of collimation lenses affect two performance criteria: minimum throughput within an angular window and maximum beam height. Based on these criteria, we establish an alignment concept for the first se...
Incoherent light interferometer for single-shot, dual wavelength, areal topography measurements of a reflective surface [0.03%]
一种单次扫描双波长干涉测量反射表面面形的非相干光干涉仪
Anna Michalska,David McKendrick,Nick Weston et al.
Anna Michalska et al.
This paper introduces an interferometer for single-shot areal quantitative phase imaging at two wavelengths simultaneously, suitable for use with low coherence sources. It operates in reflection geometry with on-axis illumination, so that i...
Femtosecond laser fabricated semi-tapered waveguide for Q-switched vortex laser generation [0.03%]
飞秒激光制造的半锥形波导用于q开关涡旋激光产生
Wenqing Sun,Fengqin Liu,Jing Guan et al.
Wenqing Sun et al.
Dielectric waveguides are widely recognized as excellent and versatile components for integrated multifunctional photonic chips, thanks to their strong optical confinement capabilities. In this study, we present a novel semi-tapered depress...
Sub-GHz optical pulsing using a thermally generated heterostructure with strong optomechanical coupling [0.03%]
利用强光机械耦合的热生成异质结构实现sub-ghz光学脉冲
Brett Poulsen,Michael Zylstra,Jayshri Sabarinathan
Brett Poulsen
Thermal engineering can be used to exploit absorption in a silicon optical cavity. In this work, the steady state profile of the heat generated by absorption is shaped and used to generate a dynamic heterostructure in a weakly confined sili...
All-fiber magnetic field sensor based on narrow-bandwidth laser internal cavity modulation with coated magnetic fluid [0.03%]
基于窄带宽激光腔内调制的包覆磁流体全光纤磁场传感器
Xujin Li,Haodong Liu,Yiguang Yang et al.
Xujin Li et al.
In this paper we present a magnetic probe structure based on magneto-fluidic and laser internal cavity modulation. We used a single-mode-no-core-single-mode fiber structure coated by a magnetic fluid as a sensing element, and inserted the s...
Haoqi Luo,Liangliang Liu,Junyu Zhang et al.
Haoqi Luo et al.
Dynamic control of bound states in the continuum (BICs) is usually achieved by engineering structural geometries of lossless optical systems, leading to a passive nature for most current BIC devices. Introducing materials with tunable permi...
Effect of Tm3+ concentration on structure, spectral properties and cross relaxation of Tm:CaF2 crystal [0.03%]
Tm3+浓度对Tm：CaF2晶体结构、光谱性质及交叉弛豫的影响
Shaochen Liu,Dapeng Jiang,Zhang Zhen et al.
Shaochen Liu et al.
Through the investigation of spectral characteristics, the evolution of cluster proportions and the cross-relaxation process in Tm:CaF2 crystals as a function of Tm doping concentration has been clarified. A quantitative model has been esta...
Realization of a 4 kHz, large energy single-frequency ns optical parametric oscillator by suppressing optical parametric generation [0.03%]
通过抑制光参量生成实现4kHz大能量单频纳秒级光学参量振荡器
Xuechen Cao,Donglin Cheng,Yanan Chen et al.
Xuechen Cao et al.
Large energy single-frequency nanosecond (ns) near-infrared light source is an essential device in the field of the remote chemical analysis based on the laser-induced breakdown spectroscopy (LIBS). In this paper, a large energy single-freq...
Jiaxin Li,Hanqi Bao,Xiaoli Zhu et al.
Jiaxin Li et al.
Spatial differentiation is the key element for edge detection and holds unquestionable significance in the current information era. All-optical computation based on metasurfaces has emerged as a powerful platform for spatial differentiation...