Adaptive optics designs for an infrared multi-object spectrograph on TMT
Abstract
The Thirty Meter Telescope (TMT), the next generation giant segmented mirror telescope, will have unprecedented astronomical science capability. Since science productivity is greatly enhanced through the use of adaptive optics, the TMT science team has decided that adaptive optics should be implanted on all the IR instruments. We present the results of a feasibility study for the adaptive optics systems on the infrared multi-object spectrograph, IRMOS and report on the design concepts and architectural options. The IRMOS instrument is intended to produce integral field spectra of up to 20 objects distributed over a 5 arcminute field of regard. The IRMOS adaptive optics design is unique in that it will use multiple laser guidestars to reconstruct the atmospheric volume tomographically, then apply AO correction for each science direction independently. Such a scheme is made technically feasible and cost effective through the use of micro-electromechanical system (MEMS) deformable mirrors.
Additional Information
© 2006 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was supported in part by the Thirty Meter Telescope project through a work-package contract in support of the feasibility study for the Infrared Multi-Object Spectrograph. This work was also supported by the Gordon and Betty Moore Foundation through their generous grant forming the Laboratory for Adaptive Optics at U.C. Santa Cruz. The theoretical tomography development work was supported by a research grant from the NSF Center for Adaptive Optics, managed by the University of California at Santa Cruz under cooperative agreement No. AST-9876783.Attached Files
Published - 62720R.pdf
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Additional details
- Eprint ID
- 97223
- Resolver ID
- CaltechAUTHORS:20190717-102458403
- Thirty Meter Telescope Project
- Gordon and Betty Moore Foundation
- NSF
- AST-9876783
- Created
-
2019-07-17Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Thirty Meter Telescope
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 6272