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Development of KIDs detectors for large submillimetric telescopes

Published online by Cambridge University Press:  24 December 2009

L. Spinoglio ,
N. Epchtein ,
M. Calvo ,
C. Giordano ,
P. de Bernardis ,
R. Battiston ,
A. Cruciani ,
B. Margesin ,
S. Masi  and
A. Monfardini
M. Calvo
Affiliation:
Dep. of Physics, University of Rome “Sapienza”, Rome, Italy INFN sez. di Roma, Rome, Italy
C. Giordano
Affiliation:
Dep. of Physics, University of Rome “Sapienza”, Rome, Italy INFN sez. di Roma, Rome, Italy
P. de Bernardis
Affiliation:
Dep. of Physics, University of Rome “Sapienza”, Rome, Italy INFN sez. di Roma, Rome, Italy
R. Battiston
Affiliation:
Dep. of Physics, University of Perugia, Perugia, Italy INFN sez. di Perugia, Perugia, Italy
A. Cruciani
Affiliation:
Dep. of Physics, University of Rome “Sapienza”, Rome, Italy
B. Margesin
Affiliation:
ITC-Irst, Povo (Tn), Italy
S. Masi
Affiliation:
Dep. of Physics, University of Rome “Sapienza”, Rome, Italy
A. Monfardini
Affiliation:
CNRS-Institut Neel, Grenoble, France
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Abstract

Large millimetric and submillimetric telescopes can play a crucialrole in our understanding of the Universe, allowing the directmeasurement of early galaxies or the investigation of the earlieststages of star formation. The B modes of CMB polarization are adirect probe of the Inflationary epoch and their measurementpromises to provide information on the scale of energies at whichthe process took place. For these investigations (and manyothers), large detectors arrays with thousands of pixels areneeded, to achieve high mapping speeds. This is especially true inthe case of mm and sub/mm observations from extremely cold and drylocations like Dome-C, where ultra-low temperature detectors,reaching photon noise limited performance, are needed to fullyexploit the excellent quality of the site. In this paper wepresent the working principle of the Microwave Kinetic InductanceDetectors and their status of development in Italy, focusing onthe key aspects that make them ideal for large arrays of sensors.

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References

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