Results 1 to 10 of about 13,729 (119)

Propagation effects in high harmonic generation media driven by bright squeezed vacuum light [PDF]

Nature Communications
Recent developments in quantum light engineering have enabled the use of infrared bright squeezed vacuum (BSV) femtosecond pulses in nonlinear optics, including strong-field physics and high-harmonic generation. However, theory has focused on single-atom
Javier Rivera-Dean, Deeksha Kanti, Philipp Stammer, Stefanos Carlström, Nikolaos Tsatrafyllis, Misha Yu Ivanov, Maciej Lewenstein, Paraskevas Tzallas   +7 more
doaj   +2 more sources

Seeing through dynamics scattering media: Suppressing diffused reflection based on decorrelation time difference [PDF]

Journal of Innovative Optical Health Sciences, 2019
We observed a phenomenon that different scattering components have different decorrelation time. Based on decorrelation time difference, we proposed a method to image an object hidden behind a turbid medium in a reflection mode.
Honglin Liu, Xin Wang, Jingjing Gao, Tingyi Yu, Shensheng Han   +4 more
doaj   +1 more source

The Design, Realization, and Validation of the Scheme for Quantum Degenerate Research in Microgravity

IEEE Photonics Journal, 2023
In microgravity, atoms can be prepared to a lower temperature and manipulated with a longer time. The Cold Atom Physics Research Rack (CAPR) in Chinese Space Station, which aims to prepare quantum degenerate gas for deep cooling and quantum simulation in
Lin Li, Wei Xiong, Bin Wang, Tang Li, Yu Xie, Angang Liang, Mingshan Huang, Xiaolong Yuan, Yuanyuan Liu, Jingwei Ji, Min Gao, Minjie Huang, Cuiyun Zhou, Tieqiang Song, Xingping Xu, Zhaogang Liang, Su Fang, Dijun Chen, Xia Hou, Xiaoji Zhou, Xuzong Chen, Weibiao Chen, Liang Liu   +22 more
doaj   +1 more source

Robust atom optics for Bragg atom interferometry

New Journal of Physics, 2023
Multi-photon Bragg diffraction is a powerful method for fast, coherent momentum transfer of atom waves. However, laser noise, Doppler detunings, and cloud expansion limit its efficiency in large momentum transfer (LMT) pulse sequences.
Garrett Louie, Zilin Chen, Tejas Deshpande, Timothy Kovachy   +3 more
doaj   +1 more source

A Tracking Imaging Control Method for Dual-FSM 3D GISC LiDAR

Remote Sensing, 2022
In this paper, a tracking and pointing control system with dual-FSM (fast steering mirror) composite axis is proposed. It is applied to the target-tracking accuracy control in a 3D GISC LiDAR (three-dimensional ghost imaging LiDAR via sparsity constraint)
Yu Cao, Xiuqin Su, Xueming Qian, Haitao Wang, Wei Hao, Meilin Xie, Xubin Feng, Junfeng Han, Mingliang Chen, Chenglong Wang   +9 more
doaj   +1 more source

Preconditioned generalized orthogonal matching pursuit

EURASIP Journal on Advances in Signal Processing, 2020
Recently, compressed sensing (CS) has aroused much attention for that sparse signals can be retrieved from a small set of linear samples. Algorithms for CS reconstruction can be roughly classified into two categories: (1) optimization-based algorithms ...
Zhishen Tong, Feng Wang, Chenyu Hu, Jian Wang, Shensheng Han   +4 more
doaj   +1 more source

Airborne Near Infrared Three-Dimensional Ghost Imaging LiDAR via Sparsity Constraint

Remote Sensing, 2018
Three-dimensional ghost imaging LiDAR via sparsity constraint (3D GISC LiDAR), as a staring imaging method, can obtain both the range information and spatial distribution of a remote target with a single-pixel time-resolved detector.
Chenglong Wang, Xiaodong Mei, Long Pan, Pengwei Wang, Wang Li, Xin Gao, Zunwang Bo, Mingliang Chen, Wenlin Gong, Shensheng Han   +9 more
doaj   +1 more source

Gravitational caustics in an atom laser

Nature Communications, 2021
Previously, the study of caustics has mostly focused on experiments with light. Here, the authors demonstrate gravitational caustics and investigate catastrophe atom optics using the matter waves of an atom laser generated from a Bose-Einstein condensate.
M. E. Mossman, T. M. Bersano, Michael McNeil Forbes, P. Engels   +3 more
doaj   +1 more source

Jiles–Atherton model prediction and compensation of the hysteresis inside magnetic shields

AIP Advances, 2019
In a varying low-frequency external magnetic field, such as that experienced by a satellite in low Earth orbit, the effect of hysteresis should be considered for any magnetic-field-sensitive device placed inside a magnetic shield. We divided the residual
Xiangkai Peng, Lin Li, Wei Ren, Jingwei Ji, Jingfeng Xiang, Jianbo Zhao, Meifeng Ye, Xin Zhao, Bin Wang, Qiuzhi Qu, Tang Li, Liang Liu, Desheng Lü   +12 more
doaj   +1 more source

Experimental Results of the Balloon-Borne Spectral Camera Based on Ghost Imaging via Sparsity Constraints

IEEE Access, 2018
The spectral camera based on ghost imaging via sparsity constraints (GISC spectral camera) is a phase modulated compressive snapshot spectral imager. It makes use of the second-order intensity correlation of the light field to resolve the spatial and ...
Jianrong Wu, Enrong Li, Xia Shen, Siyi Yao, Zhishen Tong, Chenyu Hu, Zhentao Liu, Shengying Liu, Shiyu Tan, Shensheng Han   +9 more
doaj   +1 more source