Zmuidzinas, Jonas (2008) Superconducting microresonators for detection and multiplexing. In: Joint 32nd Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IEEE , Cardiff, UK, p. 109. ISBN 978-1-4244-1438-3 http://resolver.caltech.edu/CaltechAUTHORS:20101001-095121735
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Superconducting microresonators are drawing increasing attention for use in sensitive THz detection, especially for astronomical applications. These are relatively simple thin-film lithographically produced devices that are amenable to large-scale microwave frequency multiplexing. Indeed, such resonators have very high quality factors, in the range 10^4 to 10^6, potentially allowing 10^3 to 10^4 resonators to be multiplexed using a single cryogenic low-noise amplifier (HEMT). The resonators may themselves serve as detectors given appropriate coupling of the signal energy, or the resonators may be used to multiplex a broad range of other devices such as SIN or SIS tunnel junction detectors, SQUID preamplifiers for TES bolometers, etc. One of the major advantages of microwave frequency multiplexing is that much of the complexity of the readout system is transferred to room temperature, where it is now feasible to produce readouts with very high channel counts using FPGA digital signal processing along with fast, high-resolution ADCs and DACs. This presentation will give an overview of the topics described above, including an introduction to the basic physics of superconducting microresonators and their noise mechanisms, and as a concrete example will describe the development of a 2.5 kilopixel millimeter-wave multicolor camera system for the Caltech Submillimeter Observatory.
|Item Type:||Book Section|
|Additional Information:||© 2007 IEEE. Issue Date : 2-9 Sept. 2007; Date of Current Version : 12 May 2008.|
|Official Citation:||Zmuidzinas, Jonas; , "Superconducting microresonators for detection and multiplexing," Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on , vol., no., pp.109-109, 2-9 Sept. 2007 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4516416&isnumber=4516365|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||01 Oct 2010 22:15|
|Last Modified:||26 Dec 2012 12:29|
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