Fabrication and properties of light spiral filters

Miroslav Miler; Ivo Aubrecht; Ivo Koudela; Jaroslav Wagner

doi:10.1117/12.324565

19 August 1998 Fabrication and properties of light spiral filters

Miroslav Miler, Ivo Aubrecht, Ivo Koudela, Jaroslav Wagner

Proceedings Volume 3573, OPTIKA '98: 5th Congress on Modern Optics; (1998) https://doi.org/10.1117/12.324565
Event: OPTIKA '98: Fifth Congress on Modern Optics, 1998, Budapest, Hungary

Abstract

A simple technique of obtaining light spiral (helium) filters in UV exposed photoresist layers consisting in a combined use of binary masks and revolution of the photosensitive layers during exposition is presented. The filters investigated experimentally are inspected by observing intensity distribution in a laser beam reflected from the sample. The filter giving the angular phase shift variation which is close to that needed for the generation of the first order Bessel beam is realized.

Citation Download Citation

Miroslav Miler, Ivo Aubrecht, Ivo Koudela, and Jaroslav Wagner "Fabrication and properties of light spiral filters", Proc. SPIE 3573, OPTIKA '98: 5th Congress on Modern Optics, (19 August 1998); https://doi.org/10.1117/12.324565

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