Optical design for the Giant Magellan Telescope Multi-object Astronomical and Cosmological Spectrograph (GMACS): design methodology, issues, and trade-offs Conference Paper uri icon

abstract

  • 2018 SPIE. We present the current optical design of GMACS, a multi-object wide field optical spectrograph currently being developed for the Giant Magellan Telescope, a member of the emerging generation of Extremely Large Telescopes (ELTs). Optical spectrographs for ELTs have unique design challenges and issues. For example, the combination of the largest practical field of view and beam widths necessary to achieve the desired spectral resolutions force the design of seeing limited ELT optical spectrographs to include aspheric lenses, broadband dichroics, and volume phase holographic gratings- A ll necessarily very large. We here outline details of the collimator and camera subsystems, the design methodology and trade-off analyses used to develop the collimator subsystem, the individual and combined subsystem performances and the predicted tolerances.

name of conference

  • Optical Design and Engineering VII

published proceedings

  • OPTICAL DESIGN AND ENGINEERING VII

author list (cited authors)

  • Ribeiro, R., Jones, D., Schmidt, L. M., Taylor, K., Cook, E., DePoy, D. L., ... Souza, A.

citation count

  • 1

complete list of authors

  • Ribeiro, Rafael AS||Jones, Damien||Schmidt, Luke M||Taylor, Keith||Cook, Erica||DePoy, Darren L||Faes, Daniel||Froning, Cynthia||Ji, Tae-Geun||Lee, Hye-In||Marshall, Jennifer L||de Oliveira, Claudia Mendes||Pak, Soojong||Papovich, Casey||Prochaska, Travis||Souza, Aline

editor list (cited editors)

  • Mazuray, L., Wartmann, R., & Wood, A. P.

publication date

  • June 2018