New opportunities of freeform gratings using diamond machining

Bourgenot, Cyril; Calcines, Ariadna; Sharples, Ray M.

doi:10.1117/12.2312040

New opportunities of freeform gratings using diamond machining

Bourgenot, Cyril; Calcines, Ariadna; Sharples, Ray M.

Authors

Cyril Bourgenot cyril.bourgenot@durham.ac.uk
Associate Professor

Dr Ariadna Calcines Rosario ariadna.calcines@durham.ac.uk
Head of Optical Design - CfAI

Professor Ray Sharples r.m.sharples@durham.ac.uk
Professor

Contributors

Ramón Navarro
Editor

Roland Geyl
Editor

Abstract

With the recent development of new ultra fine aluminium alloys and progress in the field of directly machined freeform surfaces, diamond machined freeform gratings could play an important part in future spectrographs or integral field units, particularly at SWIR and LWIR wavelengths where the improved thermal performance of metal optics at cryogenic temperatures is well established. Freeform diamond machined gratings can offer a cost-effective, compact, and flexible alternative to gratings fabricated by other methods such as ion beam etching or complement these technologies. In this paper, both the advantages and limitations of 5 axis diamond machined freeform gratings are presented and potential applications are discussed.

Citation

Bourgenot, C., Calcines, A., & Sharples, R. M. (2018). New opportunities of freeform gratings using diamond machining. In R. Navarro, & R. Geyl (Eds.), Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III. https://doi.org/10.1117/12.2312040

Conference Name	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III: SPIE Astronomical Telescopes + Instrumentation 2018
Conference Location	Austin, Texas
Online Publication Date	Jul 11, 2018
Publication Date	2018
Deposit Date	Sep 25, 2018
Publicly Available Date	Jan 17, 2023
Publisher	SPIE
Volume	10706
Book Title	Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
ISBN	9781510619654
DOI	https://doi.org/10.1117/12.2312040
Public URL	https://durham-repository.worktribe.com/output/1145495

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