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Proceedings Article

Nulling interferometry: symmetry requirements and experimental results

[+] Author Affiliations
Eugene Serabyn

Jet Propulsion Lab. (USA)

Proc. SPIE 4006, Interferometry in Optical Astronomy, 328 (July 5, 2000); doi:10.1117/12.390223
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From Conference Volume 4006

  • Interferometry in Optical Astronomy
  • Pierre J. Lena; Andreas Quirrenbach
  • Munich, Germany | March 27, 2000

abstract

This paper provides a derivation from first principles of the stringent symmetry and stability requirements which deep stellar nulling demands, and also includes a brief status report on recent nulling results obtained with the Jet Propulsion Laboratory's fiber-coupled rotational-shearing interferometer. To date, the deepest transient nulls obtained (at red wavelengths) are 2 X 10-6 with a laser diode source, and 1.4 X 10-5 with a single- polarization thermal white-light source filtered to provide an 18% passband. In addition, both the laser and white light nulls have been stabilized to the 10-4 level. This visible wavelength laboratory nuller thus meets essentially all of the performance goals for the planned nulling experiment on board NASA's Space Interferometer Mission, with the sole exception of dual-polarization operation.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Eugene Serabyn
"Nulling interferometry: symmetry requirements and experimental results", Proc. SPIE 4006, Interferometry in Optical Astronomy, 328 (July 5, 2000); doi:10.1117/12.390223; http://dx.doi.org/10.1117/12.390223


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