@inproceedings{d44fb8dffed54f5287b7db03e8b0295a,
title = "Atmospheric dispersion compensation for ELTs",
abstract = "This paper summarises the problems related to atmospheric dispersion (AD), both active (angular dispersion due to change in the telescope zenith angles) and adaptive (the atmospheric turbulence depends on wavelength since the refractive index and r0 are also wavelength dependent). We compare the AO effects and its compensation by deformable mirrors (achromatic by definition and incapable of compensating the atmospheric dispersion) using GLAO and LTAO with those of the atmospheric dispersion. We present preliminary optical designs for ADCs in Euro50 and E-ELT to compensate the zenith dependence dispersion of the atmosphere.",
keywords = "ADC, Adaptive optics, Atmospheric seeing, ELT",
author = "E. Atad-Ettedgui and Alexander Goncharov",
year = "2008",
doi = "10.1117/12.801274",
language = "English",
isbn = "9780819471840",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Extremely Large Telescopes",
note = "Extremely Large Telescopes: Which Wavelengths - Retirement Symposium for Arne Ardeberg ; Conference date: 29-11-2007 Through 30-11-2007",
}