ON-CHIP POLARIMETRY FOR THE SPICA B-BOP INSTRUMENT

23 Jul 2019, 17:45
1h 15m
Piazza Città di Lombardia (Milano)

Piazza Città di Lombardia

Milano

Piazza Città di Lombardia, 1, 20124 Milano MI
Poster Low Temperature Detector Development and Physics Poster session

Speaker

Dr Louis Rodriguez (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives)

Description

SPICA is one of the three projects competing for the ESA M5 mission. The three SPICA instruments share the focal plane of a 2.5 m diameter telescope cooled to 8 K, to achieve ultimate sensitivity measurements in the Far-IR and submm domains. The B-BOP camera, one of these instruments with unprecedented polarimetric capabilities, is mainly devoted to reveal the role of magnetic field in many astrophysical processes.
For this space application, a simple, robust, easy to assemble facility needs the integration of the instrumental polarimetric function at the heart of the detectors. The innovative side of these detector chips is the development of submillimeter bolometers adapted to measure the linear polarization and suited to retrieve the I, Q, U Stokes parameters without any mechanism. In parallel, the other goal is to produce detectors with two orders of magnitude better sensitivity than the Herschel Observatory, using doped silicon meanders (“Only leg detectors”) cooled to 50 mK. We describe the different functions of the instrument built around an optical path aimed to minimize the induced self-polarization.

Less than 5 years of experience since completion of Ph.D N
Student (Ph.D., M.Sc. or B.Sc.) N

Primary author

Dr Louis Rodriguez (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives)

Co-authors

Dr Abdelkader Aliane (Univ. Grenoble Alpes, CEA, LETI) Dr Albrecht Poglitsch (Max Planck fur Extraterrestrische Physik Garching) Mr Cyrille Delisle (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Mr Didier Dubreuil (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Dr Jean-Luc Sauvageot (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Mr Jerôme Martignac (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Dr Laurent Dussopt (Univ. Grenoble Alpes, CEA, LETI) Dr Marc Sauvage (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Dr Obaid-Allah Adami (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Mrs Sophie Bounissou (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives) Dr Valerie Goudon (Univ. Grenoble Alpes, CEA, LETI) Dr Vincent Revéret (AIM/DAp/IRFU/DRF/Commissariat à l'énergie atomique et aux énergies alternatives)

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