Journal
OPTICS LETTERS
Volume 35, Issue 15, Pages 2532-2534Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.35.002532
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- Ministry of Knowledge Economy [KI001889]
- Ministry of Education, Science, and Technology (MEST) [KRISS-10011131]
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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 1 x 10(-11), a frequency resolution of 1 Hz, a frequency band up to 1.7 THz, and an optical noise equivalent power of similar to 1 pW/Hz(1/2). (C) 2010 Optical Society of America
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