@inproceedings{df634ad0a9034a2dba6ed22f6dbbfc49,
title = "Modelling performance degradation of typical mid-spatial frequency errors in diamond-machined mirror arrays in the GMTIFS integral field unit",
abstract = "The optical design of the GMTIFS integral field unit includes several mirror arrays that are proposed to be diamond machined, including the pupil and field mirror arrays as well as the image slicer. The fabrication process of diamond machined surfaces often leaves behind tool marks at mid-spatial frequencies which can have significant impact on optical performance that is not fully accounted for by errors in high-spatial frequency (surface roughness) or low-spatial frequency (form error). The structure and form of these mid-spatial frequencies is dependent on the specific machining and polishing techniques used in the fabrication of the optical elements. In this study, we model and implement representative surfaces in ray tracing software to characterise the effects of mid-spatial frequency errors on the mirror arrays in the GMTIFS spectrograph.",
keywords = "adaptive optics, diamond turning, fabrication, instrumentation, Mid-spatial frequencies, spectrographs, surface errors",
author = "Kruse, {Andrew W.} and Vaughn, {Israel J.} and Oleksandra Rebrysh and Davide Greggio and Rob Sharp",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 2024 ; Conference date: 16-06-2024 Through 22-06-2024",
year = "2024",
month = aug,
doi = "10.1117/12.3019522",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Ramon Navarro and Ralf Jedamzik",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI",
address = "United States",
}