Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published October 20, 2004 | Published
Book Section - Chapter Open

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

Published - 396506.pdf

Files

396506.pdf
Files (522.6 kB)
Name Size Download all
md5:fcc89dad9bea4d4ea44539072c778f48
522.6 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
January 13, 2024