CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12184 > Article
Poster + Paper
29 August 2022 GIRMOS image slicer: preliminary optical design
Tristan Chabot, Denis Brousseau, Hugues Auger, Shaojie Chen, Suresh Sivanandam, Simon Thibault
Author Affiliations +
Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121845K (2022) https://doi.org/10.1117/12.2628828
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Conference Poster
Abstract
The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is an adaptive optics-fed multi-object integral field spectrograph with a parallel imaging capability. The instrument is composed of four separate but identical spectrographs, giving it the ability to observe four objects simultaneously. Each slicer-based integral field spectrograph offers capabilities over three different fields of view (FOVs) and spatial sampling scales: 1.0”x1.0”, 2.1”x2.1” and 4.2”x4.2” out of a 2’ diameter field-of-regard, associated with samplings of 25 mas (mode 1), 50 mas (mode 2) and 100 mas (mode 3), respectively. Spectral resolutions of R=3000 and R=8000 are available in Y, J, H and K bands from 0.95 to 2.4 µm. To achieve spatial sampling requirements, the integral field unit (IFU) is designed as a 42-slices advanced image slicer. In this paper, the preliminary optical design and performances of the GIRMOS image slicer are presented, as well as the first diamond-turned prototype. The design is optimized for both optical performance and manufacturability by opting for a staircase arrangement that delivers diffraction-limited image quality while minimizing slice width losses due to diamond turning. Stray light and slice diffraction effects are also taken into account and reported.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Tristan Chabot, Denis Brousseau, Hugues Auger, Shaojie Chen, Suresh Sivanandam, and Simon Thibault "GIRMOS image slicer: preliminary optical design", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121845K (29 August 2022); https://doi.org/10.1117/12.2628828
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 13 PAGES + POSTER
DOWNLOAD PAPER SAVE TO MY LIBRARY
DOWNLOAD
POSTER
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Spectrographs
Optics manufacturing
Stray light
Diamond turning
Optical design
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top