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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 5 — Mar. 1, 2006
  • pp: 565–567

Effect of wavefront error on 10 7 contrast measurements

Julia W. Evans, Gary Sommargren, Bruce A. Macintosh, Scott Severson, and Daren Dillon  »View Author Affiliations

Optics Letters, Vol. 31, Issue 5, pp. 565-567 (2006)

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We have measured a contrast of 6.5 × 10 8 from 10 to 25 λ D in visible light on the Extreme Adaptive Optics testbed, using a shaped pupil for diffraction suppression. The testbed was designed with a minimal number of high-quality optics to ensure low wavefront error and uses a phase-shifting diffraction interferometer for metrology. This level of contrast is within the regime needed for imaging young Jupiter-like planets, a primary application of high-contrast imaging. We have concluded that wavefront error, not pupil quality, is the limiting error source for improved contrast in our system.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(050.1220) Diffraction and gratings : Apertures

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: October 11, 2005
Manuscript Accepted: November 10, 2005

Julia W. Evans, Gary Sommargren, Bruce A. Macintosh, Scott Severson, and Daren Dillon, "Effect of wavefront error on 10−7 contrast measurements," Opt. Lett. 31, 565-567 (2006)

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  1. A. Burrows, M. Marley, W. B. Hubbard, J. I. Lunine, T. Guillot, D. Saumon, R. Freedman, D. Sudarsky, and C. Sharp, Astrophys. J. 491, 856 (1997). [CrossRef]
  2. A. Sivaramakrishnan, J. P. Lloyd, P. E. Hodge, and B. A. Macintosh, Astrophys. J. 581, L59 (2002). [CrossRef]
  3. N. J. Kasdin, R. J. Vanderbei, D. N. Spergel, and M. G. Littman, Astrophys. J. 582, 1147 (2003). [CrossRef]
  4. G. E. Sommargren, D. W. Phillion, M. A. Johnson, N. Q. Nguyen, A. Barty, F. J. Snell, D. R. Dillon, and L. S. Bradsher, in Proc. SPIE 4688, 316 (2002). [CrossRef]
  5. P. Jacquinot and B. Roizen-Dossier, in Progress in Optics, E.Wolf, ed. (North-Holland, 1964), Vol. 3, Chap. 31. [CrossRef]
  6. J. N. Kasdin, R. J. Vanderbei, M. G. Littman, and D. N. Spergel, Appl. Opt. 44, 1117. [PubMed]

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