New polychromatic testbed for DARWIN/TPF nulling interferometer laboratory demonstration

Details New polychromatic testbed for DARWIN/TPF nulling interferometer laboratory demonstration New polychromatic testbed for DARWIN/TPF nulling interferometer laboratory demonstration

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4852..405l&link_type=abstract

Interferometry in Space. Edited by Shao, Michael. Proceedings of the SPIE, Volume 4852, pp. 405-411 (2003).

Physics

Scientific paper

Several concept of space missions dedicated to the direct detection and analysis of extrasolar planets are based on nulling interferometry principle. This principle, which is theoretically very promising requires the capability of propagating and combining beams with very high accuracy in term of amplitude phase and polarization. In order to validate the principle of nulling interferometry, it is necessary to develop laboratory techniques of recombination. In this paper, we present a new test bench that should allow measuring rejection rate up to 105 in a large spectral band between 2 and 4 microns.

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