title: Terahertz spectrum analyzer based on frequency and power measurement.
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 1x10(-11), a frequency resolution of 1Hz, a frequency band up to 1.7THz, and an optical noise equivalent power of approximately 1 pW/Hz(1/2).
authors.affiliation: Center for Safety Measurement, Korea Research Institute of Standards and Science, Daejeon 305-340, Korea. dsyee@kriss.re.kr
authors.forename: Dae-Su
authors.initials: DS
authors.lastname: Yee
authors.forename: Yudong
authors.initials: Y
authors.lastname: Jang
authors.forename: Youngchan
authors.initials: Y
authors.lastname: Kim
authors.forename: Dae-Cheol
authors.initials: DC
authors.lastname: Seo