Light scattering from non-Gaussian surfaces

Eugene L. Church; Peter Z. Takacs

doi:10.1117/12.218325

1 September 1995 Light scattering from non-Gaussian surfaces

Eugene L. Church, Peter Z. Takacs

Proceedings Volume 2541, Optical Scattering in the Optics, Semiconductor, and Computer Disk Industries; (1995) https://doi.org/10.1117/12.218325
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In the smooth-surface limit, the angular distribution of the intensity of light reflected and scattered from a rough surface depends only on the root-mean-square value of its surface roughness and is independent of the details of the distribution of the surface height fluctuations. In the case of rougher surfaces, the effects of the shape of the height distribution function which do appear are usually evaluated using an assumed Gaussian height distribution, even though real surfaces can be, and frequently are, non-Gaussian. This paper describes the results of an analytic study of the effects of non-Gaussian height distributions on the reflection and scattering properties of moderately-rough surfaces. As an example we compare predictions based on a Gaussian distribution with those of a one-sided exponential distribution. Large differences are found in and near the specular core, which eventually disappear in the scattering tail. Suggestions for follow-on experimental and analytic studies are given.

Citation Download Citation

Eugene L. Church and Peter Z. Takacs "Light scattering from non-Gaussian surfaces", Proc. SPIE 2541, Optical Scattering in the Optics, Semiconductor, and Computer Disk Industries, (1 September 1995); https://doi.org/10.1117/12.218325

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