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Methods of rapid phase modulation of THz radiation for high speed THz imaging, spectroscopy, and communications devices and systems
Methods of rapid phase modulation of THz radiation for high speed THz imaging, spectroscopy, and communications devices and systems
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机译:用于高速太赫兹成像,光谱学以及通信设备和系统的太赫兹辐射的快速相位调制方法
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摘要
Rapid, voltage controlled phase modulation of continuous wave THz radiation is demonstrated. By transmitting an infrared laser beam through a phase modulator, the phase of the THz radiation which is generated by the photomixing of two infrared beams can be directly modulated through a 2π phase shift. The 100 kHz modulation rate that is demonstrated is approximately three orders of magnitude faster than what can be achieved by mechanical scanning.
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