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Proceedings Paper

Coherence modulation with radial conical holograms
Author(s): Arturo Olivares-Perez; Maria Rocio Gomez-Colin; Bernardina Pinto-Iguanero; J. A. Sanchez-Martinez; C. Zamora-Lima
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Paper Abstract

We show a technique to modulate source spatial coherence, using conical beams, made with rings amplitude computer hologram. With these devices can be applied to modulate the spatial structure of the light from arbitrary source. In the present work, we design a computer amplitude hologram to produce as to first order a light distribution as ring with a spot in the center of the conical distribution, incrementing the spatial coherence. Because a ring light has more small the airy disc than conventional pupil with similar diameter, Young interferometer, we model by numerical process to obtain the visibility of the interference pattern. This device opens the possibility to make good collimator of white light.

Paper Details

Date Published: 3 June 2002
PDF: 7 pages
Proc. SPIE 4659, Practical Holography XVI and Holographic Materials VIII, (3 June 2002); doi: 10.1117/12.469266
Show Author Affiliations
Arturo Olivares-Perez, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Maria Rocio Gomez-Colin, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Bernardina Pinto-Iguanero, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
J. A. Sanchez-Martinez, Instituto Nacional de Astrofisica Optica y Electro (Mexico)
C. Zamora-Lima, Instituto Nacional de Astrofisica Optica y Electro (Mexico)


Published in SPIE Proceedings Vol. 4659:
Practical Holography XVI and Holographic Materials VIII
Sylvia H. Stevenson; T. John Trout; Stephen A. Benton; Sylvia H. Stevenson; T. John Trout, Editor(s)

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