Tunable terahertz signal generation based on an on-chip wideband electro-optic frequency comb [0.03%]
基于集成宽带电光频率梳的太赫兹信号可调制技术
Tianyi Li,Xiaozhou Ma,Zhiyao Wang et al.
Tianyi Li et al.
We demonstrate a low-noise, tunable terahertz (THz) source based on an electro-optic frequency comb. In this approach, the lithium niobate electro-optic comb serves as the master laser, and two distributed feedback (DFB) lasers serve as sla...
Ultracompact and ultrasensitive fiber-tip nanoforce sensor enabled by Vernier effect and cantilever with a hole [0.03%]
基于vernier效应和带孔悬臂的超紧凑型和超高灵敏度纳米力传感器（英文）
Qi Zhang,Xinsai Zhang,Hanwen Yu et al.
Qi Zhang et al.
An ultracompact and ultrasensitive force sensor based on Vernier effect is proposed that consists of a graded index fiber-based beam collimator and a 3D micro-printed force sensing probe. The probe incorporates a cantilever and a polymer ha...
Joule-level, 20 ns Cr-Tm-Ho:YAG master oscillator power amplifier system [0.03%]
基于Cr-Tm-Ho:YAG的主振荡功率放大系统达到 joule 级能量和 20ns 脉宽
Wenhao Guo,Zebiao Gan,Qixuan Fan et al.
Wenhao Guo et al.
We report on a compact, flash-lamp-pumped Cr-Tm-Ho:YAG (CTH:YAG) master oscillator power amplifier (MOPA) system operating at room temperature. The actively Q-switched oscillator produces 20 ns seed pulses at 2087 nm with an energy of 265 m...
Dynamically tunable varifocal device of an abruptly autofocusing beam via a liquid crystal moiré plate [0.03%]
一种利用液晶莫尔板实现涡旋聚焦光束动态可调变焦的器件
Jialong Yan,Yang Liu,Weiqi Chen et al.
Jialong Yan et al.
In this work, we propose a moiré-type phase plate utilizing a liquid crystal (LC) element to generate tunable abruptly autofocusing Airy beams (AABs). Based on the cubic phase characteristics of the AAB and the phase modulation principle o...
Mie theory-based calculation of pumping enhancing and nano-lasing abilities for a single dielectric sphere [0.03%]
基于mie理论的单个介电纳米球泵浦增强和nano-lasing能力计算
Kai-Lin Hsiao,Tsung-Yu Huang
Kai-Lin Hsiao
To conquer ohmic losses and enhance pump absorption efficiency of a nanolaser, we theoretically calculate Mie coefficients of a single dielectric sphere and obtain negative effective permittivity and permeability simultaneously at frequenci...
Optical encryption-transmission via computational ghost imaging and fractional OAM multiplexing [0.03%]
基于分数轨道角动量多路复用和计算鬼成像的光学加密传输
Kuihao Zhang,Jixin Qiu,Zinan Huang et al.
Kuihao Zhang et al.
This paper proposes a solution that combines computational ghost imaging (CGI), fractional orbital angular momentum (FOAM), and deep learning for the secure encryption and transmission of optical images. In the information collection and en...
Generation of gigahertz-repetition-rate femtosecond vortex beams by an optical parametric oscillator [0.03%]
采用光学参量振荡器产生吉赫兹重复频率飞秒涡旋光脉冲序列
Hui Tong,Yue Shi,Hua Wang et al.
Hui Tong et al.
The generation of GHz-repetition-rate femtosecond vortex beams is reported for the first time, to the best of our knowledge. A self-developed GHz-repetition-rate Kerr-lens mode-locked Yb:CYA laser was used to pump an optical parametric osci...
Photonic molecules via coupled thin-film lithium niobate Fabry-Pérot photonic crystal micro-resonators [0.03%]
基于薄膜铌酸锂耦合法布里-珀罗型光子晶体微腔的光子分子
Hyeon Hwang,Seokjoo Go,Guhwan Kim et al.
Hyeon Hwang et al.
We demonstrate a photonic molecule platform based on photonic crystal (PhC) Fabry-Pérot micro-resonators on thin-film lithium niobate, featuring standing-wave resonances confined between PhC mirrors. By adjusting the number of PhC unit cel...
Elizabeth K Benitez,Yashas Khattar,Matthew P Borg
Elizabeth K Benitez
Self-aligned focusing schlieren (SAFS) is a relatively new diagnostic that has proven particularly useful in the field of hypersonic aerodynamic experimentation. A modification of the SAFS technique is proposed to automatically sweep throug...
Time-gated Raman spectroscopy using a 3D-stacked back-side illuminated CMOS SPAD array [0.03%]
基于三维堆叠背照式CMOS SPAD阵列的时间门控拉曼光谱技术
Gillian E Brown,Andrew B Matheson,Yuanyuan Hua et al.
Gillian E Brown et al.
Atlas is a 128 × 128-pixel array, consisting of 512 × 512 back-side illuminated (BSI) single photon avalanche diodes (SPADs) in 3D-stacked 65/40 nm CMOS technology. On-pixel auto-correlator and single photon counting capabilities have bee...