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Audio signal transmission over THz communication channel using semiconductor modulator

Audio signal transmission over THz communication channel using semiconductor modulator

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The first demonstration has been made of the transmission of an audio signal via a THz communication channel using a recently developed room temperature semiconductor THz modulator which is based on the depletion of a two-dimensional electron gas. A standard THz time-domain spectroscopy setup is modified to transmit signals up to 25 kHz over a 75 MHz train of broadband THz pulses.


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