Theory of helicity-sensitive terahertz radiation detection by field effect transistors

Abstract

Within the two antenna model, we develop a theory of the recently observed helicity-sensitive detection of terahertz radiation by FETs. The effect arises because of the mixing of the ac signals produced in the channel by the two antennas. We calculate the helicity-dependent part of the photoresponse and its dependence on the antenna impedance, gate length, and gate voltage.

4 pages, 3 figures

References in corpus (2)

• Helicity sensitive terahertz radiation detection by field effect transistors
• Generation and detection of Terahertz radiation by Field Effect Transistors

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