Abstract
We demonstrate a terahertz (THz) spectrum analyzer based on frequency and power measurement. A power spectrum of a continuous THz wave is measured through optical heterodyne detection using an electromagnetic THz frequency comb and a bolometer and power measurement using a bolometer with a calibrated responsivity. The THz spectrum analyzer has a frequency precision of , a frequency resolution of , a frequency band up to , and an optical noise equivalent power of ~1 .
© 2010 Optical Society of America
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