@inproceedings{773d452f26b44d83999ff97a477d0b50,
title = "The Infrared Imaging Spectrograph (IRIS) for TMT: The ADC optical design",
abstract = "We present the current optical design for the IRIS Atmospheric Dispersion Corrector (ADC). The ADC is designed for residual dispersions less than ∼1 mas across a given passband at elevations of 25 degrees. Since the last report, the area of the IRIS Imager has increased by a factor of four, and the pupil size has increased from 75 to 90mm, both of which contribute to challenges with the design. Several considerations have led to the current design: residual dispersion, amount of introduced distortion, glass transmission, glass availability, and pupil displacement. In particular, it was found that there are significant distortions that appear (two different components) that can lead to image blur over long exposures. Also, pupil displacement increases the wave front error at the imager focus. We discuss these considerations, discuss the compromises, and present the final design choice and expected performance.",
keywords = "ADC, Atmospheric Dispersion Compensator, Atmospheric Dispersion Corrector, IRIS, Imager, InfraRed Imaging Spectrograph, Spectrograph",
author = "Phillips, {Andrew C.} and Ryuji Suzuki and Larkin, {James E.} and Moore, {Anna M.} and Yutaka Hayano and Toshihiro Tsuzuki and Wright, {Shelley A.}",
note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Ground-Based and Airborne Instrumentation for Astronomy VI ; Conference date: 26-06-2016 Through 30-06-2016",
year = "2016",
doi = "10.1117/12.2232952",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Luc Simard and Evans, {Christopher J.} and Hideki Takami",
booktitle = "Ground-Based and Airborne Instrumentation for Astronomy VI",
address = "United States",
}