Bidirectional deep neural network-assisted design of terahertz vortex beam metasurfaces [0.03%]
基于双向深度神经网络的太赫兹涡旋光束调控元表面设计
Jiusheng Li,Ruilu Huang
Jiusheng Li
Vortex beams, whose topological charges form an infinite-dimensional Hilbert space, theoretically offer unlimited communication capacity and hold great potential for future 6G applications. Addressing the challenges of time-consuming and in...
Wavefront correction with a diffractive optical neural network in-the-loop [0.03%]
基于衍射光学神经网络的波前校正技术
Fansanqiu Li,Xianjin Liu,Jun-Jun Xiao
Fansanqiu Li
Wavefront correction is of great significance in a variety of fields but still faces many challenges. Here we propose an all-optical wavefront calibration routine based on a diffractive optical neural network (DONN), which consists of pre-t...
Evaluating tartrazine as an optical clearing agent for fluorescence lifetime imaging [0.03%]
评价酒石黄作为荧光寿命成像的光学透明剂的效果
Nanxue Yuan,Saif Ragab,Luis Chavez et al.
Nanxue Yuan et al.
Fluorescence lifetime imaging (FLI) offers valuable insights into the molecular and functional properties of biological tissues. However, in deeper tissues, optical properties (scattering and absorption) diminish fluorescence signal signifi...
Spectral phase interferometry for direct electric-field reconstruction of chirped wavepackets generated from a tapered undulator [0.03%]
采用扇形扭摆器产生线性频率 chirp 的塞曼 Compton 源的频谱相位干涉法电场重建研究
Takao Fuji,Takashi Tanaka,Tatsuo Kaneyasu et al.
Takao Fuji et al.
Tapered undulators are designed to generate broadband, chirped radiation for advanced synchrotron light sources. However, the complete electric-field waveform of the radiation has never been directly measured. Here, we report the first, to ...
Full-field characterization of liquid crystal devices with geometrical correction for thick samples [0.03%]
几何校正的完整区域向列型液晶器件表征方法及厚样品的影响研究
T Jankowski,M Józwik,A Pakuła et al.
T Jankowski et al.
We present a full-field interferometric method for simultaneous measurement of thickness deformations and birefringence in liquid crystal (LC) layers. The approach employs a Mach-Zehnder interferometer with Temporal Phase Shifting (TPS) tec...
Triple-channel SPR ion-imprinted fiber sensor enabled by MoS2 thickness-tuned resonance for multiplexed heavy metal ion detection [0.03%]
基于MoS2厚度调谐共振的三通道SPR离子印迹光纤传感器用于多种重金属离子检测
Zhiyong Yin,JianPeng Wang,Xinlu Zhang et al.
Zhiyong Yin et al.
The distinction of multiple heavy metal ions (Cu2+, Ni2+, Pb2+) in water using surface plasmon resonance (SPR) is inherently challenging due to their nearly identical impact on the bulk refractive index. We demonstrate a novel triple-channe...
Flexible sensitivity-tuning strategy for extending the dynamic range of UWFBG-based fiber-optic accelerometers [0.03%]
基于UWFBG的光纤加速度计可调灵敏度和增大声量范围的动态范围扩展策略
Zhengzheng Tan,Jianguan Tang,Jie Zhu et al.
Zhengzheng Tan et al.
In this Letter, a technique to enhance the dynamic range (DR) of fiber-optic accelerometers (FOAs) is proposed by incorporating an ultra-weak fiber Bragg grating (UWFBG) into the sensing fiber segment. Demodulation can be performed between ...
2 μm pumped optical rectification in LiNbO3 for >2% laser-to-0.4 THz conversion [0.03%]
用于＞2％激光转换至0.4THz的2μm泵浦的LiNbO3光电整流
Yufang Ding,Zhixuan Hu,Yuting Wang et al.
Yufang Ding et al.
Optical rectification (OR) in lithium niobate (LN) crystals, pumped by near-infrared lasers with tilted pulse front, has emerged as a widely adopted approach for generating broadband terahertz (THz) pulses in the frequency range of 0.1-1 TH...
Ultralow-complexity fiber nonlinearity compensation based on gradient-driven pruned Kolmogorov-Arnold network [0.03%]
基于梯度驱动剪枝的Kolmogorov-Arnold网络的超低复杂度光纤非线性补偿
Hao Qin,Chuanchuan Yang,Tianxiang Lan et al.
Hao Qin et al.
Fiber nonlinearity compensation is crucial for enhancing the transmission distance and data capacity of wavelength-division multiplexing (WDM) coherent optical communication systems, while existing equalizers based on conventional neural ne...
Xiutao Yang,Jun Gou,Yanshuai Zhang et al.
Xiutao Yang et al.
Mg2Si, a narrow-bandgap semiconductor, excels in near-infrared (NIR) (700-1700 nm) light harvesting. However, Mg2Si-based NIR photodetectors (PDs) on silicon show limited response beyond 1100 nm. This study presents a high-performance Mg2Si...