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Proceedings Article

Visible nulling interferometer

[+] Author Affiliations
Michael Shao, James K. Wallace, B. M. Levine, Duncan T. Liu

Jet Propulsion Lab. (USA)

Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, 1296 (October 12, 2004); doi:10.1117/12.552527
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From Conference Volume 5487

  • Optical, Infrared, and Millimeter Space Telescopes
  • John C. Mather
  • Kona, United States | June 21, 2004

abstract

The direct detection of Earthlike planets in the visible is a very challenging goal This paper describes a new concept for visible direct detection of Earths using a nulling interferometer instrument behind a 4m telescope in space. The basic concept is described along with the key advantages of the nulling interferometer over more traditional approaches, an apodized aperture telescope or coronagraph. In the baseline design, a 4 beam nuller produces a very deep theta^4 null. With perfect optics, the stellar leakage is less than 1e-11 of the starlight at the location of the planet. With diffraction limited (lambda/20) telescope optics suppression of the starlight to ~1e-10 would be possible.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Michael Shao ; James K. Wallace ; B. M. Levine and Duncan T. Liu
"Visible nulling interferometer", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, 1296 (October 12, 2004); doi:10.1117/12.552527; http://dx.doi.org/10.1117/12.552527


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