Bragg diffraction gratings formed in bulk fused silica by femtosecond Bessel beams

Publisher: Edp Sciences

E-ISSN: 2261-236x|8|issue|06012-06012

ISSN: 2261-236x

Source: MATEC Web of conference, Vol.8, Iss.issue, 2013-11, pp. : 06012-06012

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Abstract

A femtosecond direct-write method using Bessel beams is investigated as a means for in-bulk diffractive element formation, the performance of the formed diffractive elements is analyzed with insights into possible mechanisms of fused silica modification using Bessel beams. Results are compared to direct-write using Gaussian beams for elements of similar geometry.