Optical field simulation of edge coupled terahertz quantum well photodetectors
Source abstract
Abstract
By finite difference time domain (FDTD) simulation, we report on the optical field distribution within edge coupled terahertz quantum well photodetectors (THz QWPs) in detail. The coupling efficiency of THz QWP structures are studied from three aspects, including the electrode geometry, the position of the active region and the coupling angle. According to the simulation results, proper electrode geometry is suggested in different frequency region, and the optimal position of active region and coupling angle are presented. These results provide a useful guidance for the design and fabrication of the edge coupled THz QWP.
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Research context
OpenAlex topics: Photonic and Optical Devices · Spectroscopy and Laser Applications · Semiconductor Quantum Structures and Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University 1 , Shanghai 200240, China
Collaborative Innovation Center of Advanced Microstructures 2 , Nanjing 210093, China
Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences 3 , Shanghai 200050, China
Funding
National Natural Science Foundation of China
References (27)
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