A5074324543- Optical Systems and Laser Technology
- Optical Coatings and Gratings
- Advanced optical system design
- Optical Polarization and Ellipsometry
- Photonic and Optical Devices
- Adaptive optics and wavefront sensing
- Photonic Crystals and Applications
- Infrared Target Detection Methodologies
- Optical measurement and interference techniques
- Metamaterials and Metasurfaces Applications
- Advanced Measurement and Detection Methods
- Advanced Antenna and Metasurface Technologies
- Advanced Measurement and Metrology Techniques
- Chalcogenide Semiconductor Thin Films
- Optical Wireless Communication Technologies
- Orbital Angular Momentum in Optics
- Advanced X-ray Imaging Techniques
- Advanced Optical Sensing Technologies
- Plasmonic and Surface Plasmon Research
- Quantum Dots Synthesis And Properties
- Calibration and Measurement Techniques
- Image Enhancement Techniques
- Advanced Neural Network Applications
- Surface Roughness and Optical Measurements
- Advanced X-ray and CT Imaging
Changchun University of Science and Technology
2015-2024
Changchun University of Technology
2020
Changchun University
2020
Ministry of Education of the People's Republic of China
2018
Anhui East China Institute of Optoelectronic Technology (China)
2017
Bellingham Technical College
2016
Changchun Institute of Optics, Fine Mechanics and Physics
2002
This paper analyzes an indoor positioning system using white lighting LEDs. The performance of the is determined by layout LEDs, receiver circuit, incidence angle light, LED light source, and photodiode. Cramer-Rao bound as theoretical accuracy limitation received signal strength indicator algorithm derived. influences to multipath reflections unparallel optical axis LEDs receivers are analyzed in certain scenarios. It concluded that if diffuse channel gain measured previously a environment...
Semantic segmentation of Mars scenes has a crucial role in rovers science missions. Current CNN-based composition U-Net powerful information extraction capabilities; however, convolutional localization suffers from the limited global context modeling capability. Although Transformer performed well, it still encounters obstacles and retention low-level features. This issue is particularly relevant for Martian rocks with their varying shapes, textures, sizes scenes. In this paper, we propose...
In contrast to conventional X-ray imaging systems, the lobster eye lens, serving as a pivotal component for focusing, presents potential downsizing backscatter systems. This study reports successful implementation of pioneering non-contact staring experiment, with target positioned 1.5 meters away from system and employing tube voltage 60 kV light source. The is built upon novel high aspect ratio (500) meridian laboratory low illuminance desktop source commercial detector achieve...
Extended short-wave infrared (eSWIR) detectors operating at high temperatures are widely utilized in planetary science. A high-performance eSWIR based on pBin InAs/GaSb/AlSb type-II superlattice (T2SL) grown a GaSb substrate was demonstrated. It achieves the optimization of device's optoelectronic performance by adjusting p-type doping concentration AlAs₀.₁Sb₀.₉/GaSb barrier. Experimental and TCAD simulation results demonstrate that both dark current responsivity grow as riseing....
This article presents two kernel-based rock detection methods for a Mars rover. Rock on planetary surfaces is particularly pivotal vehicles regarding navigation and obstacle avoidance. However, the diverse morphologies of Martian rocks, sparsity pixel-wise features, engineering constraints are great challenges to current object methods, resulting in inaccurate delayed location recognition. We therefore propose region-wise framework design algorithms, kernel principle component analysis...
Multifunctional antireflective coatings have practical applications as important optical components in many fields, particularly for devices and imaging systems. However, a good antireflection application the visible region is often unsatisfactory mid-infrared devices, difficulty obtaining multiple capabilities simultaneously one of main factors limiting their applications. In this work, hierarchical moth-eye structures with superhydrophobicity were fabricated via inductively coupled plasma...
The output polarization states of corner cubes (for both uncoated and metal-coated surfaces) with an input beam arbitrary state tilt angle to the cube have been analyzed by using three-dimensional ray-tracing matrix method. diattenuation retardance corner-cube retroreflector (CCR) for all six different ray paths are calculated, relationships orientation shown. When is large, hollow CCR more appropriate than solid case that should be controlled.
Reflection loss on the optical component surface is detrimental to performance. Several researchers have discovered that eyes of moths are covered with micro- and nanostructured films reduce broadband wide-angle light reflection. This research proposes a new type moth-eye subwavelength structure waist, which equivalent gradient refractive index film layer high–low–high hyperbolic-type fill factor distribution. The diffraction order characteristics first analyzed using rigorous coupled wave...
Abstract Since the idea of bionic Lobster eye micropore optics was put forward, possibility focusing hard X-rays by this new lightweight X-ray has been proposed. Limited technological conditions aspect ratio (≥500), low surface roughness (≤1 nm) and difficulty applying metal coatings inside such narrow square channels, high quality these have not realized. This work demonstrates test results for an Ultra-high (500:1) iridium-coated with microchannel plate technology atomic layer deposition...
We propose a new panossramic optical system that provides an additional field of view (FOV) channel without expanding the physical size conventional panoramic annular lens (PAL). The two channels are contained within one PAL, their paths do not interfere with each other, and images realized on single image plane. A prototype was developed 360° × (38-80°) front FOV (102-140°) back channel.
The convex reflective diffraction grating is an essential optical component in Offner systems, which has been widely used imaging spectrometers. We propose a new design and optimization method for the blazed spectrometer. integrates macro- microdesign of system, it can be to optimize with high efficiency. Traditional geometric optics theory image quality evaluation methods are macro-optical structure parameters system. And then incident ray information, such as angle polarization states...
The traditional polarization imaging techniques cannot obtain the characteristics with global variation, and reconstruction of target different optical properties concurrently is seriously distorted. In this work, we overcome aforementioned shortcomings by using polar decomposition method to estimate Mueller matrix in full field view. Simultaneously, illumination light globally varying state calculated suppress noise caused computational imaging. descattering experiments through turbid water...
Using three-dimensional (3D) coherency vector (9 × 1), we develop a new 3D polarization algebra to calculate the properties of all sensitive optical systems, especially when incident field is partially polarized or un-polarized. The high numerical aperture (NA) microscope objective (NA = 1.25 immersed in oil) are analyzed based on proposed algebra. Correspondingly, simulation this NA system performed by commercial software VirtualLAB Fusion. By comparing theoretical calculations with...
A dual-modulation method that combines a liquid crystal on silicon spatial light modulator with an S-waveplate and biplate consisting of double quarter-wave plates (DQWPs) or half-wave (DHWPs) is proposed. The used to realize the phase polarization dual modulation incident laser beam. This study focuses generation arbitrary vector vortex beam (VVB) based proposed method. transformation effects are theoretically derived using Stokes-Mueller matrix algorithm. Correspondingly, experimental...