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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 18 — Aug. 29, 2011
  • pp: 17099–17113

The achromatic design of an atmospheric dispersion corrector for extremely large telescopes

Mehdi Bahrami and Alexander V. Goncharov  »View Author Affiliations

Optics Express, Vol. 19, Issue 18, pp. 17099-17113 (2011)

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For off-zenith observations with ground-based astronomical telescopes, the effect of atmospheric dispersion relative to diffraction on image size increases with telescope diameter. Correction of atmospheric dispersion in extremely large telescopes (ELTs) might become critical. A common solution for ELTs is to use linear atmospheric dispersion correctors (ADCs). In spite of their simplicity, the intrinsic chromatic aberrations of linear ADCs could render diffraction-limited imaging impossible when used in a fast focus. The chromatic problems of the linear ADC in ELTs can be resolved by replacing the linear ADC by the achromatic ADC designs presented here, which provide diffraction-limited image quality and offer several opto-mechanical advantages over linear ADCs.

© 2011 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(110.6770) Imaging systems : Telescopes
(220.1000) Optical design and fabrication : Aberration compensation

ToC Category:
Optical Design and Fabrication

Original Manuscript: April 1, 2011
Revised Manuscript: July 7, 2011
Manuscript Accepted: August 8, 2011
Published: August 17, 2011

Mehdi Bahrami and Alexander V. Goncharov, "The achromatic design of an atmospheric dispersion corrector for extremely large telescopes," Opt. Express 19, 17099-17113 (2011)

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