Design of a laboratory testbed for external occulters at flight Fresnel numbers

Yunjong Kim; Mike Galvin; N. Jeremy Kasdin; Robert J. Vanderbei; Dongok Ryu; Ki Won Kim; Sug Whan Kim; Dan Sirbu

doi:10.1117/12.2186349

Design of a laboratory testbed for external occulters at flight Fresnel numbers

Yunjong Kim, Mike Galvin, N. Jeremy Kasdin, Robert J. Vanderbei, Dongok Ryu, Ki Won Kim, Sug Whan Kim, Dan Sirbu

Institute of Earth·Atmosphere·Astronomy(BK21+)

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

10 Citations (Scopus)

Abstract

One of the main candidates for creating high-contrast for future Exo-Earth detection is an external occulter or sharshade. A starshade blocks the light from the parent star by flying in formation along the line-of-sight from a space telescope. Because of its large size and scale it is impossible to fully test a starshade system on the ground before launch. Instead, we rely on modeling supported by subscale laboratory tests to verify the models. At Princeton, we are designing and building a subscale testbed to verify the suppression and contrast of a starshade at the same Fresnel number as a flight system, and thus mathematically identical to a realistic space mission. Here we present the mechanical design of the testbed and simulations predicting the ultimate contrast performance. We will also present progress in implementation and preliminary results.

Original language	English
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets VII
Editors	Stuart Shaklan
Publisher	SPIE
ISBN (Electronic)	9781628417715
DOIs	https://doi.org/10.1117/12.2186349
Publication status	Published - 2015
Event	Techniques and Instrumentation for Detection of Exoplanets VII - San Diego, United States Duration: 2015 Aug 10 → 2015 Aug 13

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9605
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Techniques and Instrumentation for Detection of Exoplanets VII
Country/Territory	United States
City	San Diego
Period	15/8/10 → 15/8/13

Bibliographical note

Publisher Copyright:
© 2015 SPIE.

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1117/12.2186349

Cite this

Kim, Y., Galvin, M., Kasdin, N. J., Vanderbei, R. J., Ryu, D., Kim, K. W., Kim, S. W., & Sirbu, D. (2015). Design of a laboratory testbed for external occulters at flight Fresnel numbers. In S. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets VII [960511] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9605). SPIE. https://doi.org/10.1117/12.2186349

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abstract = "One of the main candidates for creating high-contrast for future Exo-Earth detection is an external occulter or sharshade. A starshade blocks the light from the parent star by flying in formation along the line-of-sight from a space telescope. Because of its large size and scale it is impossible to fully test a starshade system on the ground before launch. Instead, we rely on modeling supported by subscale laboratory tests to verify the models. At Princeton, we are designing and building a subscale testbed to verify the suppression and contrast of a starshade at the same Fresnel number as a flight system, and thus mathematically identical to a realistic space mission. Here we present the mechanical design of the testbed and simulations predicting the ultimate contrast performance. We will also present progress in implementation and preliminary results.",

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Kim, Y, Galvin, M, Kasdin, NJ, Vanderbei, RJ, Ryu, D, Kim, KW, Kim, SW & Sirbu, D 2015, Design of a laboratory testbed for external occulters at flight Fresnel numbers. in S Shaklan (ed.), Techniques and Instrumentation for Detection of Exoplanets VII., 960511, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9605, SPIE, Techniques and Instrumentation for Detection of Exoplanets VII, San Diego, United States, 15/8/10. https://doi.org/10.1117/12.2186349

Design of a laboratory testbed for external occulters at flight Fresnel numbers. / Kim, Yunjong; Galvin, Mike; Kasdin, N. Jeremy et al.

Techniques and Instrumentation for Detection of Exoplanets VII. ed. / Stuart Shaklan. SPIE, 2015. 960511 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9605).

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

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Design of a laboratory testbed for external occulters at flight Fresnel numbers

Abstract

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