Crack-free, partial-ring cladding surface waveguides in sapphire fabricated by femtosecond laser direct inscription [0.03%]
用于制造蓝宝石部分环状包层表面波导的皮秒激光直写技术
Wei Lyu,Yuying Wang,Yu Xie et al.
Wei Lyu et al.
Femtosecond laser direct writing is highly effective for fabricating three-dimensional photonic waveguides deep inside ultra-hard crystals. Extending this capability to the surface realm, where waveguides interact directly with the sample i...
Single-sideband spectrally resolution-enhanced laser heterodyne spectrometer for upper atmospheric sensing [0.03%]
单边带光谱分辨率增强激光异频雷达用于高层大气探测
Jun Li,Guishi Wang,Kun Liu et al.
Jun Li et al.
A single-sideband laser heterodyne spectrometer (LHS) was developed for the first time, to the best of our knowledge. A multi-channel configuration employing different band-pass filters and frequency-shifted LOs achieves single-sideband det...
Non-contact air humidity recognition based on the fusion of laser-induced breakdown spectroscopy-acoustic signals and machine learning [0.03%]
基于激光诱导击穿光谱-声信号融合的非接触式空气湿度识别方法
Dongdong Deng,Yu Zhang,Shihao Liu et al.
Dongdong Deng et al.
Addressing the limited adaptability of traditional air humidity detection technology in complex environments, a multimodal air humidity recognition system based on the fusion of laser-induced breakdown spectroscopy (LIBS) and laser-induced ...
Wavelength-encoded multi-wavevector excitation for filling the spatial frequency gap in label-free plasmonic super-resolution imaging [0.03%]
基于波长编码的多波矢激励超分辨成像填补等离激元空间频率空白区效应
Haonan Zhang,Xiaoyu Yang,Conghui Gan et al.
Haonan Zhang et al.
Optical super-resolution microscopy under surface plasmon illumination has been proven to realize an ultra-high imaging resolution based on the deep Spatial Frequency Shift (SFS) effect. However, SFS super-resolution imaging always suffers ...
NIR-VIS multispectral fused imaging with extended depth-of-field for high-throughput virtual staining [0.03%]
具有扩展景深的近红外-可见光多光谱融合成像实现高通量虚拟染色
Chenzhuo Tang,Yue Wang,Bingshan Chen et al.
Chenzhuo Tang et al.
Accurate histological analysis plays an irreplaceable role in disease diagnosis. Although virtual staining has alleviated some of the costly and tedious steps involved in histochemical staining processes, most methods employ low-throughput ...
Proximal selenium co-doping in Er:CaF2 crystal for efficient 2.75 µm lasers [0.03%]
硒在铒掺杂氟化钙晶体近程共掺作用对高效2.75µm激光的影响研究
Fan Zhang,Xuan Tong,Wudi Wang et al.
Fan Zhang et al.
Non-radiative relaxation hinders the performance of erbium-based mid-infrared lasers. Here, we demonstrate that anion-engineering in fluorite crystal provides a solution to this challenge, facilitating efficient laser operation. The Er,Se-c...
Jyrki Laatikainen,Olga Korotkova
Jyrki Laatikainen
We obtain a complete characterization of a vectorial, random light beam carrying orbital angular momentum (OAM) across L modes in its 2L-dimensional polar Fourier space defined by the Modelization Matrix (MM), whose elements are scalar radi...
High-efficiency kilowatt-level continuous-wave Yb:Y2O3 ceramic thin-disk laser [0.03%]
高效率千瓦级连续波Yb:Y2O3陶瓷薄盘激光器
Dongliang Xing,Naijie Zhang,Jie Ma et al.
Dongliang Xing et al.
We report a kilowatt-class Yb:Y2O3 ceramic thin-disk laser enabled by a diamond heat sink. Under 976 nm diode pumping, continuous-wave (CW) output power of 1089 W at 1031.7 nm is achieved with an optical-to-optical efficiency of 73%. To the...
QingQing Han,Min Sun,Xin Wang et al.
QingQing Han et al.
Thin-film lithium tantalate (TFLT) is considered a key next-generation platform for integrated photonics due to its strong electro-optic effect and low propagation loss. This work demonstrates for the first time, to the best of our knowledg...
Wavefront imaging with low coherence illumination simplifies the optical diffraction tomography setup and improves the signal-to-noise ratio [0.03%]
低相干性照明的波前成像简化了光学衍射层析成像装置并提高信噪比
Duc-Minh Ta,Michal Ziemczonok,Arkadiusz Kus et al.
Duc-Minh Ta et al.
We present the employment of wavefront imaging using Quadriwave Lateral Shearing Interferometry (QLSI) for Optical Diffraction Tomography (ODT) reconstructions. Compared to a conventional Digital Holographic (DH) Interferometer, QLSI does n...