Performances Of Herschel/PACS Bolometer Arrays And Future Developments At CEA

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Scientific paper

The PACS Photometer of the Herschel Space Observatory is equipped with filled bolometer arrays developed by CEA/LETI and CEA/SAp. These innovative detectors allow to dispense with bulky light concentrators and to instantaneously sample the field of view without altering the optical coupling of the detectors to the telescope beam. CEA/LETI opted for an all-silicon design to allow for the collective manufacturing of 16x16 bolometer arrays. Being 3-side buttable these arrays are now the building blocks for making large focal planes necessary for the next generation of wide-field sub-mm cameras. We present the unique architecture of CEA filled bolometer arrays and we report on the latest performance measurements of the Herschel/PACS Photometer. We also present current and future developments at CEA for ground-based, balloon borne and space telescopes.

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