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Proceedings Paper

Interferometric Alignment By A Circular Zone Plate
Author(s): V. Moreno; M. V. Perez; S. Bara; C. Gomez -Reino
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Paper Abstract

A simple method for optical alignment and positioning between two planes by means of a Circular Zone Plate (CZP), is proposed.The first plane is determinated by the zone plate and the other one is related to position of a reflecting surface situated in the forward space of the zone plate. Two points sources are generated by the same zone plate,when it is illuminated by a plane wave, and by several diffracted orders reflected by the reflecting surface.. Interference pattern produced by two spherical waves depend on the relative position of the generating sources. Tilting or axial misalignment between the planes determine the relative position of the two point sources and it yield fringe pattern variation.

Paper Details

Date Published: 16 January 1988
Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); doi: 10.1117/12.968818
Show Author Affiliations
V. Moreno, Universidad de Santiago de Compostela (Spain)
M. V. Perez, Universidad de Santiago de Compostela (Spain)
S. Bara, Universidad de Santiago de Compostela (Spain)
C. Gomez -Reino, Universidad de Santiago de Compostela (Spain)

Published in SPIE Proceedings Vol. 0952:
Laser Technologies in Industry
Silverio P. Almeida; Luis Miguel Bernardo; Oliverio D.D. Soares, Editor(s)

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