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SPIE Astronomical Instrumentation, Marseille : France (2008)
Bolometer array development in the DCMB French collaboration
M. Piat1, Youssef Atik2, Benoit Belier3, Alain Benoit4, Ayoub Bounab5, E. Bréelle1, Philippe Camus4, Francois-Xavier Désert6, Louis Dumoulin7, Corinne Evesque2, Hervé Geoffray8, Martin Giard5, Christian Hoffmann4, Yong Jin9, Geoffroy Klisnick10, Stefanos Marnieros7, Alessandro Monfardini4, François Pajot2, D. Prêle1, Michel Redon10, D. Santos11, D. Stanescu3, 7, Gérard Sou10, F. Voisin1
(18/07/2008)

Bolometers cooled to very low temperature are currently the most sensitive detectors for low spectral resolutiondetection of millimetre and sub-millimetre wavelengths. The best performances of the state-of-the-art bolometers allowto reach sensitivities below the photon noise of the Cosmic Microwave Background for example. Since 2003, a frenchR&D effort called DCMB ("Developpement Concerte de Matrices de Bolometres") has been organised between differentlaboratories to develop large bolometers arrays for astrophysics observations. Funded by CNES and CNRS, it is intendedto get a coherent set of competences and equipments to develop very cold bolometers arrays by microfabrication. Twoparallel developments have been made in this collaboration based on the NbSi alloy either semi-conductive orsuperconducting depending on the proportion of Nb. Multiplexing schemes have been developed and demonstrated forthese two options. I will present the latest developments made in the DCMB collaboration and future prospects.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
2 :  IAS - Institut d'astrophysique spatiale
3 :  IEF - Institut d'électronique fondamentale
4 :  NEEL - Institut Néel
5 :  CESR - Centre d'étude spatiale des rayonnements
6 :  LAOG - Laboratoire d'Astrophysique de Grenoble
7 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
8 :  CNES - Centre National d'Etudes Spatiales
9 :  LPN - Laboratoire de photonique et de nanostructures
10 :  L2E - Laboratoire d'Electronique et Electromagnétisme
11 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
APC - Cosmologie et gravitation
HELFA
Sciences de l'ingénieur/Electronique