We demonstrate that in a tight focusing geometry circularly polarized femtosecond laser vortex pulses ablate material differently depending on the handedness of light. This allows one to control laser micromachining on a sub-wavelength scale.
© 2012 OSA
C. Hnatovsky, V. Shvedov, N. Shostka, A. V. Rode, and W. Krolikowski, "Polarization-sensitive Femtosecond Laser Ablation with Tightly Focused Vortex Pulses," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper JTu1K.6.
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