Optical design of the KMOS slicer system

Robert Content

doi:10.1117/12.672312

29 June 2006 Optical design of the KMOS slicer system

Robert Content

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62693S (2006) https://doi.org/10.1117/12.672312
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

KMOS is a 2nd generation instrument in project for the VLT. It is an NIR multi-object integral-field spectrograph capturing 24 fields of 2.8" ×2.8" anywhere on a 7.2' field. The 24 fields are fed to 24 IFUs with a resolution of 0.2". KMOS is made of 3 stages: the pickoff system which captures the 24 images, the slicer system and the spectrographs. The slicer system is then the optical link between the 24 images captured by the pickoff system and the 3 slits in front of the 3 spectrographs. It is made of 24 Advanced Image Slicer systems similar to the GNIRS IFU except for 2 modifications: there are 3 mirrors with power in the fore-optics instead of 2 and there are 2 lines of pupil mirrors instead of one. The fore-optics of each system is made of 3 off-axis aspheric mirrors that accomplish a series of task: transfer the field image, position the pupil, magnify the image, give an anamorphic magnification to the image, and give a high image quality. The possibility of rotating the image with the fore-optics has also been studied.

Citation Download Citation

Robert Content "Optical design of the KMOS slicer system", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62693S (29 June 2006); https://doi.org/10.1117/12.672312

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