The MICADO first light imager for ELT: cold optics instrument

J. Schubert; M. Hartl; V. Hörmann; R. Davis; E. Sturm; N. Ageorges; L. Barl; V. Garrel; N. Geis; H. Gemperlein; D. Kampf; C. Mandla; M. Manhart; S. Rabien; R. Rüddenklau; J. Ziegleder

doi:10.1117/12.2311867

27 July 2018 The MICADO first light imager for ELT: cold optics instrument

J. Schubert, M. Hartl, V. Hörmann, R. Davis, E. Sturm, N. Ageorges, L. Barl, V. Garrel, N. Geis, H. Gemperlein, D. Kampf, C. Mandla, M. Manhart, S. Rabien, R. Rüddenklau, J. Ziegleder

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107028W (2018) https://doi.org/10.1117/12.2311867
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

MICADO, the Multi-AO-Imaging-Camera and Spectrometer for Deep Observations, is one of the first light instruments for the future 40 m class Extremely Large Telescope (ELT). MICADO utilizes the advanced laser guide star multiconjugate adaptive optics system MCAO developed by the MAORY consortium and the jointly developed singleconjugate adaptive optics system (SCAO). We present an overview on the conceptual design of the MICADO Cold Optical Instrument (COI) which comprises the infrared focal plane imager with its 3 x 3 4k² HgCdTe detector array and a compact cross-dispersing slit spectrometer operating in the spectral range of 0.8 to 2.4 μm. High contrast imaging is enabled via a classical configuration of coronagraph and Lyot stops. The paper summarizes the MICADO COI interchangeable optics, its cryogenic implementation together with the modular opto-mechanical configuration of the cryo-mechanisms and the cryo-vacuum cooling system, which consists of a continuous LN2 flow cryostat.

Citation Download Citation

J. Schubert, M. Hartl, V. Hörmann, R. Davis, E. Sturm, N. Ageorges, L. Barl, V. Garrel, N. Geis, H. Gemperlein, D. Kampf, C. Mandla, M. Manhart, S. Rabien, R. Rüddenklau, and J. Ziegleder "The MICADO first light imager for ELT: cold optics instrument", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107028W (27 July 2018); https://doi.org/10.1117/12.2311867

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available