Share Email Print
cover

Proceedings Paper

Lau effect in GRIN media
Author(s): M. C. Garcia-Allegue; D. Nieto; M. T. Flores-Arias; C. Gómez-Reino
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Lau effect refers to interference phenomenon involving double-grating system illuminated by an extended white light source and it has received wide attention. Until now, the Lau effect has been studied regarding double-grating system immersed in homogenous media. A generalization of Lau effect to the case of a GRIN medium is considered. We present an explanation based on the coherence theory. We begin the analysis by describing, in general terms, the propagation of the second-order field correlations in GRIN media, via the cross-spectral density function. This provides the basics for discussing the evolution of the intensity distribution and the cross-spectral density function of the field incident on the second grating. The particular case of a selfoc GRIN medium and two sinusoidal gratings is analyzed.

Paper Details

Date Published: 30 September 2005
PDF: 9 pages
Proc. SPIE 5956, Integrated Optics: Theory and Applications, 595614 (30 September 2005); doi: 10.1117/12.622172
Show Author Affiliations
M. C. Garcia-Allegue, Univ. of Santiago de Compostela (Spain)
D. Nieto, Univ. of Santiago de Compostela (Spain)
M. T. Flores-Arias, Univ. of Santiago de Compostela (Spain)
C. Gómez-Reino, Univ. of Santiago de Compostela (Spain)


Published in SPIE Proceedings Vol. 5956:
Integrated Optics: Theory and Applications
Tadeusz Pustelny; Paul V. Lambeck; Christophe Gorecki, Editor(s)

© SPIE. Terms of Use
Back to Top