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17 February 2003 TREND: a low noise terahertz receiver user instrument for AST/RO at the South Pole
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Abstract
Based on the excellent performance of NbN HEB mixer receivers at THz frequencies which we have established in the laboratory, we are building a Terahertz REceiver with NbN HEB Device (TREND) to be installed on the 1.7 meter diameter AST/RO submillimeter wave telescope at the Amundsen/Scott South Pole Station. TREND is scheduled for deployment during the austral summer season of 2002/2003. The frequency range of 1.25 THz to 1.5 THz was chosen in order to match the good windows for atmospheric transmission and interstellar spectral lines of special interest. The South Pole Station is the best available site for THz observations due to the very cold and dry atmosphere over this site. In this paper, we report on the design of this receiver. In particular, we report on HEB mixer device performance, the quasi-optical coupling design using an elliptical silicon lens and a twin-slot antenna, the laser local oscillator (LO), as well as the mixer block design and the plans for coupling the TREND receiver to the sky beam and to the laser LO at the AST/RO telescope site.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eyal Gerecht, Sigfrid Yngvesson, John Nicholson, Yan Zhuang, Fernando Rodriguez-Morales, Xin Zhao, Dazhen Gu, Richard Zannoni, Michael J. Coulombe, Jason C. Dickinson, Thomas M. Goyette, Jerry Waldman, Christopher E. Groppi, Abigail S. Hedden, Dathon Golish, Christopher K. Walker, Antony A. Stark, Christopher Martin, and Adair Lane "TREND: a low noise terahertz receiver user instrument for AST/RO at the South Pole", Proc. SPIE 4855, Millimeter and Submillimeter Detectors for Astronomy, (17 February 2003); https://doi.org/10.1117/12.459316
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