A tunable blackbody polarized infrared source for the BBOP camera-Reference-Cited by-同舟云学术

A tunable blackbody polarized infrared source for the BBOP camera

Published:2023-10-29 Issue: Volume: Page:
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Author:

Navick Xavier-François¹,Martignac Jérôme²,Pöglitsch Albrecht²,Revéret Vincent²,Rodriguez Louis²,Tollet Timothée²,Visticot François²

Affiliation:

1. CEA de Saclay, Univ. Paris-Saclay, IRFU DEDIP bat 534

2. CEA de Saclay, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité

Abstract

Abstract The B-BOP detector is composed of polarization sensitive bolometer arrays in the 70–350 µm spectral range with a goal sensitivity around one attoWatt/sqrt(Hz). A polarized infrared set-up is required to evaluate its performances. The source is based on blackbody-likes emitters whose total surface is tunable within a factor of 120 from 9 mm2 up to 1200 mm2 and whose temperature is tunable from 1 K to 40 K without disturbing the dilution cryostat and the working temperature of the matrix. The present paper describes the source, the rotating polarizer at low temperature, the modulation means, and the complete optical tube leading polarized infrared photons for characterizing detectors down to femtowatt level. Details of the design and realization are discussed.

Publisher

Research Square Platform LLC

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