Accurate astronomical atmospheric dispersion models in ZEMAX

  1. Get@NRC: Accurate astronomical atmospheric dispersion models in ZEMAX (Opens in a new window)
DOIResolve DOI:
AuthorSearch for:
Proceedings titleProceedings of SPIE - The International Society for Optical Engineering
ConferenceAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 23 June 2014 through 27 June 2014
Article number915157
SubjectAdaptive optics; Refraction; Telescopes; ADC; Atmospheric dispersion; Atmospheric model; Atmospheric refractions; TMT; ZEMAX; Atmospheric movements
AbstractZEMAX provides a standard built-in atmospheric model to simulate atmospheric refraction and dispersion. This model has been compared with other ones to assess its intrinsic accuracy, critical for very demanding application like ADCs for AO-assisted extremely large telescopes. A revised simple model, based on updated published data of the air refractivity, is proposed by using the "Gradient 5" surface of Zemax. At large zenith angles (65 deg), discrepancies up to 100 mas in the differential refraction are expected near the UV atmospheric transmission cutoff. When high-accuracy modeling is required, the latter model should be preferred.
Publication date
AffiliationNational Research Council Canada; National Science Infrastructure
Peer reviewedYes
NPARC number21275558
Export citationExport as RIS
Report a correctionReport a correction
Record identifier5cea3e23-21e5-4843-a265-ad51a316af0d
Record created2015-07-14
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)