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Low Duty Cycle Continuous Wave Photoconducting Terahertz Imaging and Spectroscopy System
Low Duty Cycle Continuous Wave Photoconducting Terahertz Imaging and Spectroscopy System
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机译:低占空比连续波光导光电导硫化成像和光谱系统
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摘要
Systems and methods for plasmonics enhanced photomixing for generating continuous-wave (CW) frequency-tunable terahertz radiation in accordance with embodiments of the invention are disclosed. A photomixing system configured to generate continuous-wave terahertz frequency signals can include an optical pump configured to generate at least two beams, where the at least two beams are utilized to create a frequency-offset and operate below a 50% duty cycle, where the duty cycle includes an operation cycle and a sleep cycle. The photomixing system can also include a photomixer that includes a radiating element configured to receive the frequency-offset and to generate a terahertz radiation utilizing the received frequency-offset and the radiating element, where the radiating element includes at least one plasmonic contact electrode.
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