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Etude de faisabilité d'une caméra bolométrique pour l'imagerie à haute résolution spatiale à 1,3mm de longueur d'onde pour l'IRAM

Abstract : This thesis lies within the scope of new generation continuum instrumentation for ground-based millimeter astronomy (atmospheric band at 1,3mm). A new type of fully sampling detectors covering the entire focal plane of the 30m IRAM telescope is proposed, based on the development of submillimeter bolometers for the European project Herschel. After an introduction to millimeter astronomy and the principal existing ground-based instruments, a numerical model simulating the behaviour of these bolometers is proposed with the aim to estimate their performances (validated by measurements). The transposition of the absorption peak from 100 microns to 1.3mm is then studied, giving place to the invention of a method based on anti-reflecting layers. The principle was confirmed by spectrometry. The observing process with a ground-based camera using these bolometers is then simulated and shows that a very good pixel sensitivity is possible (10 mJy.s^0.5).
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https://tel.archives-ouvertes.fr/tel-00007311
Contributor : Vincent Reveret <>
Submitted on : Sunday, November 7, 2004 - 4:53:29 PM
Last modification on : Wednesday, December 9, 2020 - 3:11:56 PM
Long-term archiving on: : Friday, April 2, 2010 - 8:54:21 PM

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  • HAL Id : tel-00007311, version 1

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Vincent Reveret. Etude de faisabilité d'une caméra bolométrique pour l'imagerie à haute résolution spatiale à 1,3mm de longueur d'onde pour l'IRAM. Astrophysique [astro-ph]. Université Pierre et Marie Curie - Paris VI, 2004. Français. ⟨tel-00007311⟩

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