Share Email Print
cover

Proceedings Paper

Fresnel zones in GRIN media
Author(s): Jose Manuel Rivas-Moscoso; Carlos C. Gomez-Reino; Maria Victoria Perez Martin
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The free propagation of a wavefront in an inhomogeneous medium with parabolic refractive index profile and the division of the wavefront into Fresnel zones are studied. We determine the radius and the area of each zone as well as the zone contribution to the total wave at an observation point inside the medium. We find the condition that the optical path must fulfill from each zone to the aforementioned point so that the disturbance due to successive zones will be in phase opposition. Once this condition is settled the concept of zone plate in gradient- index media can be introduced.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437087
Show Author Affiliations
Jose Manuel Rivas-Moscoso, Univ. de Santiago de Compostela (Spain)
Carlos C. Gomez-Reino, Univ. de Santiago de Compostela (Spain)
Maria Victoria Perez Martin, Univ. de Santiago de Compostela (Spain)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

© SPIE. Terms of Use
Back to Top