On the performance of ELT instrumentation

J.-G. Cuby; E. Prieto; M. Ferrari; E. Hugot; J. Bland-Hawthorn; S. Blais-Ouellette

doi:10.1117/12.671619

29 June 2006 On the performance of ELT instrumentation

J.-G. Cuby, E. Prieto, M. Ferrari, E. Hugot, J. Bland-Hawthorn, S. Blais-Ouellette

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62691U (2006) https://doi.org/10.1117/12.671619
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

We discuss the possibility of improving the optical efficiency of ELT instruments by reducing the number of optical surfaces with highly aspheric optics generated by deformable mirrors (DMs). Preliminary analysis shows that a 2 aspheric mirror design could in principle replace a traditional optical design with a complex series of ~ 10 lenses, providing a potential gain in efficiency of ~ 20% as well as a significant gain in compactness. New OH suppression systems based on technologies from the photonics world become available that may ultimately allow to reduce the near IR sky brightness by 2 to 4 magnitudes, depending on wavelength. The potential performance of an ELT with OH suppression is similar in imaging and significantly higher in spectroscopy than JWST.

Citation Download Citation

J.-G. Cuby, E. Prieto, M. Ferrari, E. Hugot, J. Bland-Hawthorn, and S. Blais-Ouellette "On the performance of ELT instrumentation", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62691U (29 June 2006); https://doi.org/10.1117/12.671619

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