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Journal Article

Tuning the structural properties of femtosecond-laser-induced nanogratings


Peschel,  Ulf
Nonlinear Optics and Nanophotonics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Ramirez, L. P. R., Heinrich, M., Richter, S., Dreisow, F., Keil, R., Korovin, A. V., et al. (2010). Tuning the structural properties of femtosecond-laser-induced nanogratings. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 100(1), 1-6. doi:10.1007/s00339-010-5684-2.

Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6ADD-5
We present the results of our investigations on the formation process of nanogratings in fused silica and the influence of fabrication parameters, thereby identifying ways to systematically control the grating properties. Nanogratings, self-organized nanostructures with subwavelength periodicity, are formed in certain parameter ranges during femtosecond-laser processing of transparent materials, resulting in characteristic birefringent modifications. They provide the opportunity for the fabrication of arbitrary three-dimensional birefringent elements with position-dependent retardation. Based on our findings, we were able to fabricate birefringent elements with various precise retardations in otherwise isotropic fused silica.