Antireflection coating on GaAs for the range 8-12 um

Jiri Hrdina; Lubomir Jastrabik; Jiri Potmesil; Petr Siroky; Dagmar Chvostova; Jaroslav Sobota

doi:10.1117/12.141011

4 March 1993 Antireflection coating on GaAs for the range 8-12 μm

Jiri Hrdina, Lubomir Jastrabik, Jiri Potmesil, Petr Siroky, Dagmar Chvostova, Jaroslav Sobota

Proceedings Volume 1782, Thin Films for Optical Systems; (1993) https://doi.org/10.1117/12.141011
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

The antireflection coating design on GaAs for the spectral range from 8 micrometers to 12 micrometers is discussed. Based on the comprehensive search technique the best systems of up to 5 layers of ZnS and Ge are presented. To get better antireflection effect the materials with lower refractive indices are needed. Utilization of yttria for this purpose is suggested and optical constants in IR for both evaporated and sputtered layers are established. Though evaporated yttria layers exhibit relatively high absorption in the region of our interest, sputtered films are much better and several systems of up to four layers of Y₂O₃, ZnS, and Ge are computed by the comprehensive search technique again.

Citation Download Citation

Jiri Hrdina, Lubomir Jastrabik, Jiri Potmesil, Petr Siroky, Dagmar Chvostova, and Jaroslav Sobota "Antireflection coating on GaAs for the range 8-12 μm", Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); https://doi.org/10.1117/12.141011

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