Micro-holographic methods for sub-micrometer grating fabrication in fused silica with UV femtosecond laser

M. Dubov; R. K. Nasyrov; D. N. Nikogosyan; A. G. Poleshchuk; V. Mezentsev; I. Bennion

doi:10.1117/12.797681

27 September 2008 Micro-holographic methods for sub-micrometer grating fabrication in fused silica with UV femtosecond laser

M. Dubov, R. K. Nasyrov, D. N. Nikogosyan, A. G. Poleshchuk, V. Mezentsev, I. Bennion

Author Affiliations +

Proceedings Volume 7100, Optical Design and Engineering III; 71000T (2008) https://doi.org/10.1117/12.797681
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

The optical layouts incorporating binary phase diffractive grating and a standard micro-objective were used for femtosecond microfabrication of periodical structures in fused silica. Two beams, generated in Talbot type interferometer, interfered on a surface and in the bulk of the sample. The method suggested allows better control over the transverse size of the grating pitch, and thus control the reflection strength of the waveguide or fibre grating. We present the examples of direct inscription of the sub-micrometer periodical structures using a 267 nm femtosecond laser radiation.

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M. Dubov, R. K. Nasyrov, D. N. Nikogosyan, A. G. Poleshchuk, V. Mezentsev, and I. Bennion "Micro-holographic methods for sub-micrometer grating fabrication in fused silica with UV femtosecond laser", Proc. SPIE 7100, Optical Design and Engineering III, 71000T (27 September 2008); https://doi.org/10.1117/12.797681

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