The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

Stephen C. Parshley; Michael Niemack; Richard Hills; Simon R. Dicker; Rolando Dünner; Jens Erler; Patricio A. Gallardo; Jon E. Gudmundsson; Terry Herter; Brian J. Koopman; Michele Limon; Frederick T. Matsuda; Philip Mauskopf; Dominik A. Riechers; Gordon J. Stacey; Eve M. Vavagiakis

doi:10.1117/12.2314073

The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

Stephen C. Parshley, Michael Niemack, Richard Hills, Simon R. Dicker, Rolando Dünner, Jens Erler, Patricio A. Gallardo, Jon E. Gudmundsson, Terry Herter, Brian J. Koopman, Michele Limon, Frederick T. Matsuda, Philip Mauskopf, Dominik A. Riechers, Gordon J. Stacey, Eve M. Vavagiakis

Faculty of Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

25 Citations (Scopus)

Abstract

A common optical design for a coma-corrected, 6-meter aperture, crossed-Dragone telescope has been adopted for the CCAT-prime telescope of CCAT Observatory, Inc., and for the Large Aperture Telescope of the Simons Observatory. Both are to be built in the high altitude Atacama Desert in Chile for submillimeter and millimeter wavelength observations, respectively. The design delivers a high throughput, relatively flat focal plane, with a field of view 7.8 degrees in diameter for 3 mm wavelengths, and the ability to illuminate >100k diffraction-limited beams for < 1 mm wavelengths. The optics consist of offset reflecting primary and secondary surfaces arranged in such a way as to satisfy the Mizuguchi-Dragone criterion, suppressing first-order astigmatism and maintaining high polarization purity. The surface shapes are perturbed from their standard conic forms in order to correct coma aberrations. We discuss the optical design, performance, and tolerancing sensitivity. More information about CCAT-prime can be found at ccatobservatory.org and about Simons Observatory at simonsobservatory.org.

Original language	English
Title of host publication	Ground-Based and Airborne Telescopes VII
Editors	Heather K. Marshall, Jason Spyromilio
Publisher	SPIE
ISBN (Electronic)	9781510619531
DOIs	https://doi.org/10.1117/12.2314073
Publication status	Published - 2018
Event	Ground-Based and Airborne Telescopes VII 2018 - Austin, United States Duration: 10 Jun 2018 → 15 Jun 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10700
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Ground-Based and Airborne Telescopes VII 2018
Country/Territory	United States
City	Austin
Period	10/06/18 → 15/06/18

Bibliographical note

Funding Information:
Acknowledgements: CCAT-prime funding has been provided by Cornell University, the Fred M. Young Jr. Charitable Fund, the German Research Foundation (DFG) through grant number INST 216/733-1 FUGG, the Univ. of Cologne, the Univ. of Bonn, and the Canadian Atacama Telescope Consortium. Part of this work was supported by a grant from the Simons Foundation (Award #457687, B.K.). MDN acknowledges support from NSF award AST-1454881. RD thanks CONICYT for grants PIA Anillo ACT-1417 and QUIMAL 160009.

Publisher Copyright:
© 2018 SPIE.

Other keywords

coma correction
cross-Dragone
optical design
submillimeter
telescope optics

Access to Document

10.1117/12.2314073

Cite this

Parshley, S. C., Niemack, M., Hills, R., Dicker, S. R., Dünner, R., Erler, J., Gallardo, P. A., Gudmundsson, J. E., Herter, T., Koopman, B. J., Limon, M., Matsuda, F. T., Mauskopf, P., Riechers, D. A., Stacey, G. J., & Vavagiakis, E. M. (2018). The optical design of the six-meter CCAT-prime and Simons Observatory telescopes. In H. K. Marshall, & J. Spyromilio (Eds.), Ground-Based and Airborne Telescopes VII [1070041] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10700). SPIE. https://doi.org/10.1117/12.2314073

@inproceedings{2634b5a223c14cc58266ee3f140d971a,

title = "The optical design of the six-meter CCAT-prime and Simons Observatory telescopes",

abstract = "A common optical design for a coma-corrected, 6-meter aperture, crossed-Dragone telescope has been adopted for the CCAT-prime telescope of CCAT Observatory, Inc., and for the Large Aperture Telescope of the Simons Observatory. Both are to be built in the high altitude Atacama Desert in Chile for submillimeter and millimeter wavelength observations, respectively. The design delivers a high throughput, relatively flat focal plane, with a field of view 7.8 degrees in diameter for 3 mm wavelengths, and the ability to illuminate >100k diffraction-limited beams for < 1 mm wavelengths. The optics consist of offset reflecting primary and secondary surfaces arranged in such a way as to satisfy the Mizuguchi-Dragone criterion, suppressing first-order astigmatism and maintaining high polarization purity. The surface shapes are perturbed from their standard conic forms in order to correct coma aberrations. We discuss the optical design, performance, and tolerancing sensitivity. More information about CCAT-prime can be found at ccatobservatory.org and about Simons Observatory at simonsobservatory.org.",

keywords = "coma correction, cross-Dragone, optical design, submillimeter, telescope optics",

author = "Parshley, {Stephen C.} and Michael Niemack and Richard Hills and Dicker, {Simon R.} and Rolando D{\"u}nner and Jens Erler and Gallardo, {Patricio A.} and Gudmundsson, {Jon E.} and Terry Herter and Koopman, {Brian J.} and Michele Limon and Matsuda, {Frederick T.} and Philip Mauskopf and Riechers, {Dominik A.} and Stacey, {Gordon J.} and Vavagiakis, {Eve M.}",

note = "Funding Information: Acknowledgements: CCAT-prime funding has been provided by Cornell University, the Fred M. Young Jr. Charitable Fund, the German Research Foundation (DFG) through grant number INST 216/733-1 FUGG, the Univ. of Cologne, the Univ. of Bonn, and the Canadian Atacama Telescope Consortium. Part of this work was supported by a grant from the Simons Foundation (Award #457687, B.K.). MDN acknowledges support from NSF award AST-1454881. RD thanks CONICYT for grants PIA Anillo ACT-1417 and QUIMAL 160009. Publisher Copyright: {\textcopyright} 2018 SPIE.; Ground-Based and Airborne Telescopes VII 2018 ; Conference date: 10-06-2018 Through 15-06-2018",

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doi = "10.1117/12.2314073",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Marshall, {Heather K.} and Jason Spyromilio",

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Parshley, SC, Niemack, M, Hills, R, Dicker, SR, Dünner, R, Erler, J, Gallardo, PA, Gudmundsson, JE, Herter, T, Koopman, BJ, Limon, M, Matsuda, FT, Mauskopf, P, Riechers, DA, Stacey, GJ & Vavagiakis, EM 2018, The optical design of the six-meter CCAT-prime and Simons Observatory telescopes. in HK Marshall & J Spyromilio (eds), Ground-Based and Airborne Telescopes VII., 1070041, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10700, SPIE, Ground-Based and Airborne Telescopes VII 2018, Austin, United States, 10/06/18. https://doi.org/10.1117/12.2314073

The optical design of the six-meter CCAT-prime and Simons Observatory telescopes. / Parshley, Stephen C.; Niemack, Michael; Hills, Richard et al.

Ground-Based and Airborne Telescopes VII. ed. / Heather K. Marshall; Jason Spyromilio. SPIE, 2018. 1070041 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10700).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

Abstract

Publication series

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