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Polarization-dependent ablation of silicon using tightly focused femtosecond laser vortex pulses

Hnatovsky, Cyril; Shvedov, Vladlen G; Shostka, Natalia; Rode, Andrei V; Krolikowski, Wieslaw


We demonstrate experimentally that, in a tight focusing geometry, circularly polarized femtosecond laser vortex pulses ablate material differently depending on the handedness of light. This effect offers an additional degree of freedom to control the shape and size of laser-machined structures on a subwavelength scale.

CollectionsANU Research Publications
Date published: 2012-01-15
Type: Journal article
Source: Optics letters
DOI: 10.1364/OL.37.000226


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