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Proceedings Paper

A novel high-contrast imaging technique based on optical tunneling to search for faint companions around bright stars at the limit of diffraction
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Paper Abstract

We present a novel application of optical tunneling in the context of high-angular resolution, high-contrast techniques with the aim of improving direct imaging capabilities of faint companions in the vicinity of bright stars. In contrast to existing techniques like coronagraphy, we apply well-established techniques from integrated optics to exclusively extinct a very narrow angular direction coming from the sky. This extinction is achieved in the pupil plane and does not suffer from diffraction pattern residuals. We give a comprehensive presentation of the underlying theory as well as first laboratory results.

Paper Details

Date Published: 28 July 2014
PDF: 12 pages
Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91511Q (28 July 2014); doi: 10.1117/12.2055440
Show Author Affiliations
Dominik Derigs, Univ. zu Köln (Germany)
Lucas Labadie, Univ. zu Köln (Germany)
Dhriti Sundar Ghosh, ICFO - Institut de Ciències Fotòniques (Spain)
Laëtitia Abel-Tibérini, Institut Fresnel (France)

Published in SPIE Proceedings Vol. 9151:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Ramón Navarro; Colin R. Cunningham; Allison A. Barto, Editor(s)

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