Novel optical controllable terahertz wave switch |
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| Authors: | Jiu-sheng Li Jian-quan Yao |
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| Institution: | a College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China
b Centre for THz Research, China Jiliang University, Hangzhou 310018, China |
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| Abstract: | We study theoretically and demonstrate experimentally light controllable terahertz wave switch. When the modulated optical excitation source is used to irradiate a high resistivity silicon wafer, a novel controllable terahertz wave switch is achieved. The results show that the ON-OFF response time is less than 150 ms and the attenuation of the novel terahertz wave switch is more than 20 dB at frequency of 0.315 THz. |
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| Keywords: | Terahertz wave Optical excitation Switch |
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