NIRCam coronagraphic Lyot stop: Design, fabrication and testing

Yalan Mao; Torben B. Andersen; Tracy Kubo; Miguel Virgen; Henry Chan; Greg Feller; Lynn W. Huff; Eric Smith; Gopal Vasudevan; Steve Somerstein; Tom Jamieson; Scott Horner; John Krist; Charles A. Beichman; Carmen Barone; Ron Schmidt; Donna Levin; Steve Seymour; Douglas Kelly; Marcia J. Rieke

doi:10.1117/12.896451

NIRCam coronagraphic Lyot stop: Design, fabrication and testing

Yalan Mao, Torben B. Andersen, Tracy Kubo, Miguel Virgen, Henry Chan, Greg Feller, Lynn W. Huff, Eric Smith, Gopal Vasudevan, Steve Somerstein, Tom Jamieson, Scott Horner, John Krist, Charles A. Beichman, Carmen Barone, Ron Schmidt, Donna Levin, Steve Seymour, Douglas Kelly, Marcia J. Rieke

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

2 Scopus citations

Abstract

The NIRCam instrument on the James Webb Space Telescope (JWST) will provide a coronagraphic imaging capability to search for extrasolar planets in the 2 - 5 microns wavelength range. This capability is realized by a set of Lyot pupil stops with patterns matching the occulting mask located in the JWST intermediate focal plane in the NIRCam optical system. The complex patterns with transparent apertures are made by photolithographic process using a metal coating in the opaque region. The optical density needs to be high for the opaque region, and transmission needs to be high at the aperture. In addition, the Lyot stop needs to operate under cryogenic conditions. We will report on the Lyot stop design, fabrication and testing in this paper.

Original language	English (US)
Title of host publication	Cryogenic Optical Systems and Instruments XIII
DOIs	https://doi.org/10.1117/12.896451
State	Published - 2011
Event	Cryogenic Optical Systems and Instruments XIII - San Diego, CA, United States Duration: Aug 24 2011 → Aug 25 2011

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8150
ISSN (Print)	0277-786X

Other

Other	Cryogenic Optical Systems and Instruments XIII
Country/Territory	United States
City	San Diego, CA
Period	8/24/11 → 8/25/11

Keywords

Coronagraphic imaging
JWST
Lyot stop
NIRCam

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.896451

Cite this

Mao, Y., Andersen, T. B., Kubo, T., Virgen, M., Chan, H., Feller, G., Huff, L. W., Smith, E., Vasudevan, G., Somerstein, S., Jamieson, T., Horner, S., Krist, J., Beichman, C. A., Barone, C., Schmidt, R., Levin, D., Seymour, S., Kelly, D., & Rieke, M. J. (2011). NIRCam coronagraphic Lyot stop: Design, fabrication and testing. In Cryogenic Optical Systems and Instruments XIII Article 81500E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8150). https://doi.org/10.1117/12.896451

Mao, Y, Andersen, TB, Kubo, T, Virgen, M, Chan, H, Feller, G, Huff, LW, Smith, E, Vasudevan, G, Somerstein, S, Jamieson, T, Horner, S, Krist, J, Beichman, CA, Barone, C, Schmidt, R, Levin, D, Seymour, S, Kelly, D & Rieke, MJ 2011, NIRCam coronagraphic Lyot stop: Design, fabrication and testing. in Cryogenic Optical Systems and Instruments XIII., 81500E, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8150, Cryogenic Optical Systems and Instruments XIII, San Diego, CA, United States, 8/24/11. https://doi.org/10.1117/12.896451

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abstract = "The NIRCam instrument on the James Webb Space Telescope (JWST) will provide a coronagraphic imaging capability to search for extrasolar planets in the 2 - 5 microns wavelength range. This capability is realized by a set of Lyot pupil stops with patterns matching the occulting mask located in the JWST intermediate focal plane in the NIRCam optical system. The complex patterns with transparent apertures are made by photolithographic process using a metal coating in the opaque region. The optical density needs to be high for the opaque region, and transmission needs to be high at the aperture. In addition, the Lyot stop needs to operate under cryogenic conditions. We will report on the Lyot stop design, fabrication and testing in this paper.",

keywords = "Coronagraphic imaging, JWST, Lyot stop, NIRCam",

author = "Yalan Mao and Andersen, {Torben B.} and Tracy Kubo and Miguel Virgen and Henry Chan and Greg Feller and Huff, {Lynn W.} and Eric Smith and Gopal Vasudevan and Steve Somerstein and Tom Jamieson and Scott Horner and John Krist and Beichman, {Charles A.} and Carmen Barone and Ron Schmidt and Donna Levin and Steve Seymour and Douglas Kelly and Rieke, {Marcia J.}",

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AU - Mao, Yalan

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AU - Virgen, Miguel

AU - Chan, Henry

AU - Feller, Greg

AU - Huff, Lynn W.

AU - Smith, Eric

AU - Vasudevan, Gopal

AU - Somerstein, Steve

AU - Jamieson, Tom

AU - Horner, Scott

AU - Krist, John

AU - Beichman, Charles A.

AU - Barone, Carmen

AU - Schmidt, Ron

AU - Levin, Donna

AU - Seymour, Steve

AU - Kelly, Douglas

AU - Rieke, Marcia J.

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N2 - The NIRCam instrument on the James Webb Space Telescope (JWST) will provide a coronagraphic imaging capability to search for extrasolar planets in the 2 - 5 microns wavelength range. This capability is realized by a set of Lyot pupil stops with patterns matching the occulting mask located in the JWST intermediate focal plane in the NIRCam optical system. The complex patterns with transparent apertures are made by photolithographic process using a metal coating in the opaque region. The optical density needs to be high for the opaque region, and transmission needs to be high at the aperture. In addition, the Lyot stop needs to operate under cryogenic conditions. We will report on the Lyot stop design, fabrication and testing in this paper.

AB - The NIRCam instrument on the James Webb Space Telescope (JWST) will provide a coronagraphic imaging capability to search for extrasolar planets in the 2 - 5 microns wavelength range. This capability is realized by a set of Lyot pupil stops with patterns matching the occulting mask located in the JWST intermediate focal plane in the NIRCam optical system. The complex patterns with transparent apertures are made by photolithographic process using a metal coating in the opaque region. The optical density needs to be high for the opaque region, and transmission needs to be high at the aperture. In addition, the Lyot stop needs to operate under cryogenic conditions. We will report on the Lyot stop design, fabrication and testing in this paper.

KW - Coronagraphic imaging

KW - JWST

KW - Lyot stop

KW - NIRCam

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ER -

NIRCam coronagraphic Lyot stop: Design, fabrication and testing

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