A5102746921- Photonic Crystals and Applications
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Optical Coatings and Gratings
- Advanced MIMO Systems Optimization
- Antenna Design and Analysis
- Infrared Target Detection Methodologies
- GaN-based semiconductor devices and materials
- ZnO doping and properties
- Smart Grid Energy Management
- Ga2O3 and related materials
- Smart Grid Security and Resilience
- Remote-Sensing Image Classification
- Thermography and Photoacoustic Techniques
- Wireless Communication Security Techniques
- Iterative Learning Control Systems
- Soft Robotics and Applications
- Piezoelectric Actuators and Control
- Elevator Systems and Control
Ningbo University
2024
Fuzhou University
2024
Beijing Jiaotong University
2017
National Yang Ming Chiao Tung University
2010-2013
Abstract In this study, 236 nm AlGaN-based deep ultraviolet (DUV) micro-LEDs with different sized P-contact areas are designed and fabricated, the sidewalls restored by a wet chemical treatment method KOH solution. The results reveal that proper can effectively remove plasma damaged materials clearly show formation of m -plane facets. Compared untreated micro-LEDs, reverse leakage current treated under −10 V decreases up to 91.7% specific contact resistivity (SCR) reduces from 6.94 Ω cm 2...
We have investigated the influence of various thicknesses on different layers in GaAs-based photonic crystal surface-emitting lasers (PCSELs), by using transfer matrix and coupled wave methods to increase vertically optical confinement factor reduce threshold gain. In addition, relationship between gain filling has been considered. This letter provides an efficient calculation method for designing square-lattice-type PCSEL structures, which shall be useful fabrication low-threshold PCSELs...
Load restoration problem is a hybrid programming combining with the zero-one integer and linear has many safe constraints. It primary objective to maximize load pickup through priorities. This paper employs entropy weight method evaluate concerns about closely related indexes including importance, outage loss, fluctuation reliability. By using method, weights (entropy weights) deduced from these could be used in conjunction subjective acquired knowledge experience of experts. Obviously, this...
Infrared small target detection is critical to infrared search and tracking (IRST) systems. However, accurate robust remains challenging due the scarcity of information complexity clutter interference. Existing methods have some limitations in feature representation, leading poor performance complex scenes. Especially when there are sharp edges near or cluster multi-target detection, "target suppression" phenomenon tends occur. To address this issue, we propose a unsupervised multi-feature...
Safe and reliable wireless transmission services are needed in multi-cell massive MIMO mobile communication networks. Physical layer security technology is effective to solve networks issues. It uses the channel characteristics of encrypt information so as improve confidentiality communication. Combined with cooperation, this paper proposes optimal secure artificial-noise-aided beamforming, which applies base station selection, In proposed scheme, among all cells selected assists generating...
GaN-based photonic crystal surface-emitting lasers(PCSELs) with AlN/GaN distributed Bragg reflectors were fabricated and analyzed. Different lasing characteristics of PCSEL has been determeined demonstrated by the PC lattice constants. The laser emission behavior covered whole patterns 50 μm in diameter. Under optical pumping at room temperature, constant 230nm shows a threshold energy density about 2.7 mJ/cm<sup>2</sup>. Above threshold, one dominated peak emits 420.11 nm linewidth 1.1...