A5113032054- Optical Systems and Laser Technology
- Pulsars and Gravitational Waves Research
- Image Processing Techniques and Applications
- Photonic and Optical Devices
- Image Enhancement Techniques
- Advanced Frequency and Time Standards
- Remote Sensing and Land Use
- Remote Sensing and LiDAR Applications
- Spectroscopy and Chemometric Analyses
- Atomic and Subatomic Physics Research
- Advanced Image Fusion Techniques
- Essential Oils and Antimicrobial Activity
- Seismic Waves and Analysis
- Advanced Optical Sensing Technologies
- Chalcogenide Semiconductor Thin Films
- Advanced Fluorescence Microscopy Techniques
- Advanced Chemical Sensor Technologies
- Acoustic Wave Resonator Technologies
- Optical measurement and interference techniques
- Perovskite Materials and Applications
- Advanced Measurement and Detection Methods
- Adaptive optics and wavefront sensing
- Quantum Dots Synthesis And Properties
- Photoacoustic and Ultrasonic Imaging
- Optical Coatings and Gratings
University of Chinese Academy of Sciences
2023-2025
Hangzhou Academy of Agricultural Sciences
2022
Chinese Academy of Sciences
2013-2019
Shanghai Institute of Technical Physics
2019
Changchun Institute of Optics, Fine Mechanics and Physics
2011-2017
In space gravitational wave detection, the phase information of interfering signals is read out by a phasemeter, typically output sampling at MHz frequency. To transmit between and ground, it must be downsampled; however, spectral aliasing during downsampling will affect performance phasemeter.This paper presents four-module cascaded filter (FCDF) with detailed module parameter design. On-board experiments conducted in phasemeter environment demonstrate that FCDF achieves passband...
Space gravitational wave detection uses a three-satellite formation scheme, with the distance between satellites reaching hundreds of thousands or millions kilometers. According to principle laser heterodyne interferometry, change inter-satellite inertial references caused by event is converted into phase interference signal. The payload for measuring information phasemeter. mission requires that phasemeter’s ranging accuracy 1 picometer, and corresponding measurement required reach 2π...
Remote sensing images are very vulnerable to cloud interference during the imaging process. Cloud occlusion, especially thick significantly reduces quality of remote images, which in turn affects a variety subsequent tasks using images. The miss ground information due occlusion. removal method based on temporality global–local structure is initially suggested as solution this problem. This includes two stages: global multi-temporal feature fusion (GMFF) stage and local single-temporal...
The egg production of laying hens is crucial to breeding enterprises in the hen industry. However, there currently no systematic or accurate method identify low-egg-production-laying commercial farms, and majority these are identified by breeders based on their experience. In order address this issue, we propose a that widely applicable highly precise. First, themselves separate normal-laying hens. Then, under halogen lamp, hyperspectral images two different types captured via imaging...
Computational micro-spectrometers comprised of detector arrays and encoding structure arrays, such as on-chip Fabry-Perot (FP) cavity filters, have great potential in many in-situ applications owing to their compact size snapshot imaging ability. Given manufacturing deviation environmental influence are inevitable, easy effective calibration for spectrometer is necessary, especially applications. Currently strategies based on iterative algorithms or neural networks require accurate...
Semiconductor quantum dots (QDs) are a promising luminescent phosphor for next-generation lightings and displays. In particular, QD-based white light-emitting diodes (WLEDs) considered to be the candidate light sources with most potential application in this work, we synthesized quaternary/ternary core/shell alloyed CdZnSeS/ZnSeS QDs high bright emission intensity. The show good thermal stability by performing temperature-dependent experiments that range from 295 433 K. Finally, WLED based...
Taking advantage of broad response range and snap-shot operation mode, reconstructive spectrometers based on integrated frequency-modulation microstructure computational techniques attract lots attention. The key problems in reconstruction are sparse samplings related with the limited detectors generalization ability due to data-driving principle. Here, we demonstrate abstractly a mid-infrared micro-spectrometer covering 2.5-5 μm, which utilizes grating-integrated lead selenide detector...
To improve the quality of grating masks made by scanning beam interference lithography, this article established a mathematical model step-scanning exposure and analyzed effects drift error on image. Beam angle can be decomposed into δx in plane (XOZ plane) δy perpendicular to plane. Analysis shows that has major impact fringes during exposure, which may affect precision phase lock. leads appearance deflected strips affects dose. When low-frequency appears light path, contrast photoresist...
A nanometer scale alignment method of spherical concentric mirrors based on dual-beam interferometry is proposed, which also the to measure defocus mirrors. In process aligning mirrors, can be measured real time with error. The experimental result shows that achieve several nanometers.
Laser interferometry of the space gravitational wave antenna needs to demodulate signal by a phasemeter with high phase readout precision. A in digital locking loop structure was proved be sensitive amplitude fluctuation input experimentally previous studies. In this work, we have carried out theoretical analysis on influence The results show that noise belongs multiplicative noise, which cannot eliminated differential measurement. We used automatic gain control (AGC) circuit suppress...