A5103088562- Advanced Measurement and Metrology Techniques
- Industrial Vision Systems and Defect Detection
- Optical Systems and Laser Technology
- Solid State Laser Technologies
- Caching and Content Delivery
- Optical Coatings and Gratings
- Optical Polarization and Ellipsometry
- Data Management and Algorithms
- Graph Theory and Algorithms
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
Nanjing University of Science and Technology
2025
Tianjin University
2006-2023
This paper aims to develop a hardware system for the precise measurement of transmittance optical films. The mainly consists laser light source and detector, spectrometer, multi-stage amplification circuits, analog-to-digital conversion power module. Through optimization path circuit design, accuracy repeatability are ensured. is applicable performance evaluation various thin film materials has extensive application prospects.
This study designs and implements a system for the measurement analysis of optical properties Gaussian thin films, aimed at accurately measuring key parameters such as laser reflectance transmittance. The employs dual-path data acquisition technology, utilizing scanning film in conjunction with card to achieve efficient collection analysis. software is developed based on QT framework, integrating OpenGL visualization 3D intensity distribution maps. features real-time display, ease operation,...
Dual-signal-wave optical parametric oscillators (DSW OPOs) around 1.5 mum by using two periodically poled crystals was demonstrated experimentally. The widely tunable wavelength interval from 2.5 nm to 69.1 obtained. It can be used for generation of terahertz (THz) waves 0.3-8.9 THz different frequency generation. With the incident pump power 3 W at 50 kHz, DSW OPO generated 169.6 mW maximum average dual signal 1489.2 and 1558.3 nm.
Reachability query is a fundamental problem and has been well studied on static graphs. However, in the real world, graphs are not but always evolving over time. In this paper, we study of historical reachability We propose novel index, named HR-Index, which integrates complete correct information graph. A an graph can be converted into its HR-Index thus efficiency improved significantly. also two optimization techniques to reduce size effectively. confirm effectiveness our method through...