TY - JOUR
T1 - Mid-infrared astrophotonics
T2 - Study of ultrafast laser induced index change in compatible materials
AU - Arriola, A.
AU - Gross, S.
AU - Ams, M.
AU - Gretzinger, T.
AU - Le Coq, D.
AU - Wang, R. P.
AU - Ebendorff-Heidepriem, H.
AU - Sanghera, J.
AU - Bayya, S.
AU - Shaw, L. B.
AU - Ireland, M.
AU - Tuthill, P.
AU - Withford, M. J.
N1 - Copyright 2017 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The mid-infrared wavelength regime 3:5 - 4:1μm, known as the astronomical L' band is of special interest for exoplanet hunting. Mid-IR compatible photonic technologies are an enabling platform for a range of critical observational science using compact instruments on the next generation of Extremely Large Telescopes. Pupil remapping interferometry is a technique in which subapertures of the telescope pupil (2D) are reformatted into a 1D linear array. This can be done efficiently using 3D photonics. One of the most important techniques to fabricate 3D photonic devices in glass is ultrafast laser inscription. However, common silicate glasses are opaque above 2-2.2 μm and therefore not useful for the fabrication of waveguides at mid-infrared wavelengths. Here we present a study of mid-infrared transparent materials that are compatible with the ultrafast laser inscription technique. This study will inform the development of mid-infrared photonic devices for future exoplanetary discovery.
AB - The mid-infrared wavelength regime 3:5 - 4:1μm, known as the astronomical L' band is of special interest for exoplanet hunting. Mid-IR compatible photonic technologies are an enabling platform for a range of critical observational science using compact instruments on the next generation of Extremely Large Telescopes. Pupil remapping interferometry is a technique in which subapertures of the telescope pupil (2D) are reformatted into a 1D linear array. This can be done efficiently using 3D photonics. One of the most important techniques to fabricate 3D photonic devices in glass is ultrafast laser inscription. However, common silicate glasses are opaque above 2-2.2 μm and therefore not useful for the fabrication of waveguides at mid-infrared wavelengths. Here we present a study of mid-infrared transparent materials that are compatible with the ultrafast laser inscription technique. This study will inform the development of mid-infrared photonic devices for future exoplanetary discovery.
UR - http://www.scopus.com/inward/record.url?scp=85014097282&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/CE1101018
U2 - 10.1364/OME.7.000698
DO - 10.1364/OME.7.000698
M3 - Article
AN - SCOPUS:85014097282
VL - 7
SP - 698
EP - 711
JO - Optical Materials Express
JF - Optical Materials Express
SN - 2159-3930
IS - 3
ER -