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Proceedings Paper

Fundamental performances of a micro stationary Fourier transform spectrometer
Author(s): Frédéric Gillard; Nicolas Guérineau; Sylvain Rommeluère; Jean Taboury; Pierre Chavel
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Paper Abstract

A new configuration of micro-spectrometer based on an infrared stationary Fourier transform (FTIR) interferometer has been developed at ONERA. Our device is based on a classic infrared focal plane array (FPA) of HgCdTe technology with a built-in two-wave wedge-like interferometer. This new architecture generates research works in several domains. Technological researches are conducted in collaboration with the CEA to optimize the manufacturing process and reduce the technological defects. In parallel, researches in optical design are conducted to implement the FTIR-FPA in a complete system. For this, theoretical work is needed to understand and describe the fringes formation inside the detection structure when illuminated by a wave which is not ideal, i.e. emitted by an extended source positioned at a finite distance from the detection plane. The results of this theoretical study are presented. These results are exploited to design a compact spectrometer with a very simple optical architecture. First experimental data are presented and discussed.

Paper Details

Date Published: 14 May 2010
PDF: 11 pages
Proc. SPIE 7716, Micro-Optics 2010, 77162E (14 May 2010); doi: 10.1117/12.854489
Show Author Affiliations
Frédéric Gillard, Office National d'Etudes et de Recherches Aérospatiales (France)
Nicolas Guérineau, Office National d'Etudes et de Recherches Aérospatiales (France)
Sylvain Rommeluère, Office National d'Etudes et de Recherches Aérospatiales (France)
Jean Taboury, Lab. Charles Fabry, Institut d'Optique, Univ Paris-Sud, CNRS (France)
Pierre Chavel, Lab. Charles Fabry, Institut d'Optique, Univ Paris-Sud, CNRS (France)


Published in SPIE Proceedings Vol. 7716:
Micro-Optics 2010
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Hans Zappe, Editor(s)

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