Arsenic sulphide athermal singlets for 3-5 mu m imaging

P Conway, D Pain, C Slinger, P Rogers, A Zekak, P Ewen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An arsenic trisulphide refractive + diffractive hybrid element is both achromatic and athermal across the 3-5 mu m waveband when set in an aluminium mount. We present two possible ways of manufacturing this element: using a photodarkening process to realise the diffractive structures, and by diamond turning, initially not thought to be viable. We demonstrate that the required depths in the diffractive surface are obtainable by both methods, and consider the advantages of each. Above all, however this lens is fabricated it offers, a very low cost, light weight solution to athermal singlet imaging in the 3-5 mu m waveband.

Original languageEnglish
Title of host publicationINFRARED TECHNOLOGY AND APPLICATIONS XXIII, PTS 1 AND 2
EditorsBF Andresen, M Strojnik
Place of PublicationBELLINGHAM
PublisherSPIE
Pages396-405
Number of pages10
ISBN (Print)0-8194-2476-5
Publication statusPublished - 1997
EventInfrared Technology and Applications XXIII Conference - ORLANDO
Duration: 20 Apr 199725 Apr 1997

Conference

ConferenceInfrared Technology and Applications XXIII Conference
CityORLANDO
Period20/04/9725/04/97

Fingerprint

Dive into the research topics of 'Arsenic sulphide athermal singlets for 3-5 mu m imaging'. Together they form a unique fingerprint.

Cite this