Holographic antireflection coatings

Jacques E. Ludman; Timothy D. Upton; David W. Watt; T. Yurovchak

doi:10.1117/12.304512

26 March 1998 Holographic antireflection coatings

Jacques E. Ludman, Timothy D. Upton, David W. Watt, T. Yurovchak

Proceedings Volume 3294, Holographic Materials IV; (1998) https://doi.org/10.1117/12.304512
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

Abstract

Using holographic methods to fabricate antireflection coatings is attractive because arbitrarily small reflectivities may be achieved at a single wavelength with a simple photographic process. In this paper, we discuss the theoretical aspects of these holograms and the technical aspects of fabricating them. We present numerical simulations that predict the spectral response of the coating as a function of the bandwidth of the recording source and the thickness and modulation of the emulsion. These results are confirmed with spectrophotometer measurements of actual coatings. Recording holographic antireflection coatings requires a single collimated light source. The hologram-air interface is sued to create the second wave; this allows the coating to automatically correct for variation in the surface of the hologram. However, this method requires a post recording coating procedure to produce a diffracted wave with the correct phase shift. After the hologram is recorded and processed, a thin layer of SiO₂ or MgF₂ is applied to the hologram to adjust the phase shift between the diffracted wave and the surface reflection. Additionally this coating procedure enhances the durability of the coating and, if MgF₂ is used, lowers the refractive index modulation required for complete cancellation of the surface reflection.

Citation Download Citation

Jacques E. Ludman, Timothy D. Upton, David W. Watt, and T. Yurovchak "Holographic antireflection coatings", Proc. SPIE 3294, Holographic Materials IV, (26 March 1998); https://doi.org/10.1117/12.304512

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