28 July 2014 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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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.
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Dominik Derigs, Dominik Derigs, Lucas Labadie, Lucas Labadie, Dhriti Sundar Ghosh, Dhriti Sundar Ghosh, Laëtitia Abel-Tibérini, Laëtitia Abel-Tibérini, } "A novel high-contrast imaging technique based on optical tunneling to search for faint companions around bright stars at the limit of diffraction", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91511Q (28 July 2014); doi: 10.1117/12.2055440; https://doi.org/10.1117/12.2055440
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