Opto-thermo-mechanical numerical simulations of 3 different concepts of infrared achromatic phase shifters
Abstract
The Darwin/TPF mission aims at detecting directly extra solar planets. It is based on the nulling interferometry, concept proposed by Bracewell in 1978, and developed since 1995 in several European and American laboratories. One of the key optical devices for this technique is the achromatic phase shifter (APS). This optical component is designed to produce a π phase shift over the whole Darwin spectral range (i.e. 6-18 μm), and will be experimentally tested on the NULLTIMATE consortium nulling test bench (Labèque et al). Three different concepts of APS are being simulated: dispersive plates focus crossing and field reversal. In this paper, we show how thermal, mechanical and optical models are merged into a single robust model, allowing a global numerical simulation of the optical component performances. We show how these simulations help us to optimizing the design and present results of the numerical model.
Additional Information
© 2004 Society of Photo-Optical Instrumentation Engineers (SPIE). October 20, 2004. This work has been done under The ESA contract N°17 005/02/NL/JA. It would not have been possible without the help of the whole NULLTIMATE CONSORTIUM e.g : Alcatel Space, OCA, Kayser Threde .... , the PhD grant of the author (B.C.) is funded by CNRS and ALCATEL SPACE Industries.Attached Files
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Additional details
- Eprint ID
- 57874
- Resolver ID
- CaltechAUTHORS:20150527-151159873
- 17 005/02/NL/JA
- European Space Agency
- Centre National de la Recherche Scientifique (CNRS)
- ALCATEL SPACE Industries
- Created
-
2015-05-27Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 5491