Diamond gradient index "moth-eye" antireflection surfaces for LWIR windows

Alan B. Harker; Jeffrey F. DeNatale

doi:10.1117/12.130803

14 December 1992 Diamond gradient index "moth-eye" antireflection surfaces for LWIR windows

Alan B. Harker, Jeffrey F. DeNatale

Proceedings Volume 1760, Window and Dome Technologies and Materials III; (1992) https://doi.org/10.1117/12.130803
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

An optical surface can be microscopically textured in a pattern with physical features whose dimensions are below that of the operational wavelength to produce a physical gradient in the effective optical index of refraction. The performance of such 'moth-eye' surface features, typically cones or pyramids, can be predicted based on dielectric mixture models by use of the optical properties of the base material and air. The performances of LWIR antireflective moth- eye surfaces formed in silicon, germanium and diamond are consistent with theoretical predictions.

Citation Download Citation

Alan B. Harker and Jeffrey F. DeNatale "Diamond gradient index "moth-eye" antireflection surfaces for LWIR windows", Proc. SPIE 1760, Window and Dome Technologies and Materials III, (14 December 1992); https://doi.org/10.1117/12.130803

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available