Interferometric Alignment By A Circular Zone Plate

V. Moreno; M. V. Perez; S. Bara; C. Gomez -Reino

doi:10.1117/12.968818

16 January 1988 Interferometric Alignment By A Circular Zone Plate

V. Moreno, M. V. Perez, S. Bara, C. Gomez -Reino

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968818
Event: Laser Technologies in Industry, 1988, Porto, Portugal

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.

Citation Download Citation

V. Moreno, M. V. Perez, S. Bara, and C. Gomez -Reino "Interferometric Alignment By A Circular Zone Plate", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968818

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