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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 13, Iss. 7 — Jul. 1, 1996
  • pp: 1584–1592

Signal generated by an extra-solar-system planet detected by a rotating rotationally shearing interferometer

Marija S. Scholl  »View Author Affiliations

JOSA A, Vol. 13, Issue 7, pp. 1584-1592 (1996)

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An infrared rotating rotationallly shearing interferometer can be used for detection of a potential planet orbiting around a nearby star. An expression is derived for the signal generated by a star and its faint companion, and this signal is detected by a rotationally shearing interferometer. It is shown that the planet’s signal can be detected, despite the presence of a much larger star signal, because the planet produces a faint modulation superimposed upon the large star signal when the aperture rotates. In the particular case of a rotating rotationally shearing interferometer, the argument of the cosine term is shown to depend only on the planet’s and the observational parameters. However, the amplitude of the modulation term in the interferometric signal is shown to be proportional to the star’s intensity.

© 1996 Optical Society of America

Original Manuscript: July 27, 1995
Revised Manuscript: March 11, 1996
Manuscript Accepted: February 20, 1996
Published: July 1, 1996

Marija S. Scholl, "Signal generated by an extra-solar-system planet detected by a rotating rotationally shearing interferometer," J. Opt. Soc. Am. A 13, 1584-1592 (1996)

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  1. M. S. Scholl, “Effect of the coating-thickness error on the performance of an optical component,” Infrared Phys. Technol. (to be published).
  2. M. S. Scholl, G. N. Lawrence, “Adaptive optics for inorbit aberration correction: feasibility study,” Appl. Opt. 34, 7295–7301 (1995). [CrossRef] [PubMed]
  3. K. Knight, “Methods of detecting extrasolar planets. I. Imaging,” Icarus 30, 422–428 (1977). [CrossRef]
  4. C. Roddier, F. Roddier, J. Demarcq, “Compact rotational shearing interferometer for astronomical applications,” Opt. Eng. 28, 66–73 (1989). [CrossRef]
  5. M. S. Scholl, “Infrared signal generated by a planet outside the solar system discriminated by rotating rotationally-shearing interferometer,” Infrared Phys. Technol. (to be published).
  6. M. S. Scholl, G. N. Lawrence, “Diffraction modeling of a space relay experiment,” Opt. Eng. 29, 271–278 (1990). [CrossRef]
  7. M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1972), pp. 510–514.

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