23 July 2014 Local oscillator development for focal plane array and supra-THz astronomy receivers
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Abstract
Ultra-sensitive superconducting tunnel junction heterodyne receivers used for astronomy research require relatively low levels of local oscillator (LO) power. When configured as an imaging array, however, the LO power required substantially increases and the provision and distribution of a harmonically generated LO signal to multiple pixel elements becomes a technically challenging task. Furthermore, the difficulty of generating LO power is compounded as the operational frequency is increased into the supra-THz region (<1 THz). We will present our programme of research directed towards the provision of future THz astronomy receivers, in which we have been pursuing the development of enhanced harmonic up-conversion LO technology.
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Manju Henry, Manju Henry, Brian Ellison, Brian Ellison, Pawala Aryathilaka, Pawala Aryathilaka, Nick Brewster, Nick Brewster, Peter Huggard, Peter Huggard, Ghassan Yassin, Ghassan Yassin, Stafford Withington, Stafford Withington, Doris Maier, Doris Maier, } "Local oscillator development for focal plane array and supra-THz astronomy receivers", Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91530O (23 July 2014); doi: 10.1117/12.2056792; https://doi.org/10.1117/12.2056792
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