@inproceedings{d36c75c1a5ee4ca7a77fa2486cd05a68,
title = "Towards the development of mid-infrared integrated optics in the renewed context of high-contrast interferometry",
abstract = "Single-mode integrated optics is an increasingly employed technology in interferometric instruments to reach high-accuracy visibility and closure phases measurements. Here, we address the progress achieved in the area of mid-infrared integrated optics beam combiners beyond 2.5 μm fabricated in MIR chalcogenide glasses by ultrafast laser inscription. Thanks to the synergistic cooperation between the Universities of Cologne and Macquarie, we fabricated optimized asymmetric and multimode interference beam combiners and tested them around 4 μm. In contrast to our earlier works, we also focused on the high-contrast capabilities of these devices and measured levels of null depth. This may become relevant for future projects such as Hi5/VLTI or the space mission LIFE.",
keywords = "Astrophotonics, Integrated Optics, Long-baseline interferometry, Optical/infrared instrumentation",
author = "Sharma, {Tarun Kumar} and Lucas Labadie and Dominik Strixner and Simon Gross and Thomas Gretzinger and Sascha Quanz and Denis Defr{\`e}re and Sanny Ahmed and Withford, {Michael J.}",
note = "Copyright 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.; Optical and Infrared Interferometry and Imaging VII 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
year = "2020",
month = dec,
day = "13",
doi = "10.1117/12.2561022",
language = "English",
isbn = "9781510636798",
series = "Proceedings of SPIE",
publisher = "SPIE",
pages = "1--10",
editor = "Tuthill, {Peter G.} and Antoine M{\'e}rand and Stephanie Sallum",
booktitle = "Optical and Infrared Interferometry and Imaging VII",
address = "United States",
}