ISSN:
1572-9559
Keywords:
Submillimeter radiometers
;
SIS detectors and mixers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We present a simple method to determine the spectral response of an SIS detector in the millimeter and submillimeter wavelength range from its current response to a chopped cold-load. This direct detection response is also a good indicator of quantum efficiency and mixer noise temperature when using the SIS junction in heterodyne mode. A simple experimental setup without local oscillator, cryogenic IF-amplifier or any quasioptical interferometer allows a quick diagnosis of integrated planar impedance matching structures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02088155
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