Journal
OPTICS COMMUNICATIONS
Volume 281, Issue 23, Pages 5697-5700Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2008.09.018
Keywords
Terahertz wave; Optical excitation; Switch
Categories
Funding
- National Natural Science Foundation of China [60577023]
- National Basic Research Program of China [2007CB310403]
- China Postdoctoral Science Foundation
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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. (C) 2008 Elsevier B.V. All rights reserved.
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