A5008146906- Advanced Surface Polishing Techniques
- Optical Systems and Laser Technology
- Optical measurement and interference techniques
- Adaptive optics and wavefront sensing
- Advanced Measurement and Metrology Techniques
- Advanced optical system design
- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
- Soil and Unsaturated Flow
- Enhanced Oil Recovery Techniques
- Advanced Optical Imaging Technologies
- Coal Properties and Utilization
- Laser Material Processing Techniques
- Advanced machining processes and optimization
- Diamond and Carbon-based Materials Research
- Nuclear Materials and Properties
- Rock Mechanics and Modeling
- Surface Roughness and Optical Measurements
- Photonic and Optical Devices
- Optical Coatings and Gratings
- Clay minerals and soil interactions
- Hydrogen embrittlement and corrosion behaviors in metals
- Fusion materials and technologies
- Concrete Corrosion and Durability
- Metal and Thin Film Mechanics
University of Chinese Academy of Sciences
2015-2025
Changchun Institute of Optics, Fine Mechanics and Physics
2016-2025
Chinese Academy of Sciences
2015-2025
Advanced Optical Systems (United States)
2025
State Key Laboratory of Applied Optics
2023-2024
Institute of Rock and Soil Mechanics
2015-2024
China General Nuclear Power Corporation (China)
2023-2024
Institute of Advanced Manufacturing Technology
2024
University of Shanghai for Science and Technology
2023
Institute of Optics and Electronics, Chinese Academy of Sciences
2023
In the process of manufacturing world's largest silicon carbide (SiC) aspheric mirror, primary difficulties are mirror blank preparation, asphere fabrication, and testing, as well cladding coating. Specifically, challenges include homogeneity complicated structure casting, accuracy efficiency fabrication process, print-through effect, fidelity precision test procedure, stress denseness dynamic range interferometric measurement, air turbulence error due to long optical path. To break through...
As optical systems evolve toward larger apertures, higher precision, and broader frequency bands, sub-nanometer accuracy sub-millimeter resolution residual birefringence metrology play a crucial role in the preparation manufacturing of large-aperture materials. Traditionally, polarization errors elements are evaluated using specialized instruments based on photoelastic effect. However, these high-precision expensive, have slow testing speeds, restrict aperture size. In this paper, we propose...
This paper introduces an optimization strategy for fabricating large aspheric mirrors. We polished a SiC mirror, 4 m in diameter, achieving surface error of 1/40λ RMS. To the best our knowledge, this is first instance such result mirror material and size combination. Due to various performance settings different tools, optimal polishing results with single setting challenging. evaluated tool developed strategy, dividing maps enhance efficiency large-aperture fabrication. established...
The Fresnel Zone Plate (FZP) is widely used in a variety of applications. However, the most concerning drawback FZP its low diffraction efficiency limited by fabrication capability. an with surface-relief profile can reach 100% at specified diffracted order, however, this difficult to engineer precise manner. In paper, hybrid-level (HLFZP) proposed maximize under certain lithography condition. To theoretically verify enhancement, field HLFZP derived establishing model. According different...
With high-determinacy and no subsurface damage, Magnetorheological Finishing (MRF) has become an important tool in fabricating high-precision optics. But for large mirrors, the application of MRF is restricted by its small removal function low material rate. In order to improve rate, shorten processing cycle, we proposed a new concept, named Belt-MRF expand mirrors made prototype with remove function, using belt instead very polishing wheel length. A series experimental results on Silicon...
Applying the iterative triangulation stitching algorithm, we provide an experimental demonstration by testing a Φ120 mm flat mirror, Φ1450 off-axis parabolic mirror and convex hyperboloid mirror. By comparing results with self-examine subaperture, it shows that reconstruction are in consistent of subaperture testing. As all experiments conducted 5-dof adjustment platform big errors, proves using above mentioned can be easily performed without precise positioning system. In addition,...
Montmorillonite (MMT) constitutes most of fine-grained sedimentary rock, such as shale, mudstone, and siltstone. It is also applied in underground storage carbon dioxide, petroleum drilling engineering, material engineering. Although adsorption mechanical behavior MMT–H2O–CO2 widely studied, little known about interplay between them. In this work, we have investigated the MMT with different proportion H2O CO2 content under super critical condition by molecular dynamic (MD) method. With...