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Proceedings Paper

Adaptive control of pulse front tilt, the quill effect, and directional ultrafast laser writing
Author(s): P. S. Salter; R. D. Simmonds; M. J. Booth
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Paper Abstract

The “quill effect" describes a directional phenomenon encountered during ultrafast laser fabrication. Even in homogeneous and isotropic materials, fabrication effects can depend on the direction of focus translation. The directionality has been attributed to pulse front tilt, leading to a spatiotemporal asymmetry in the focus. We use adaptive optics to control pulse front tilt and demonstrate controllable quill effect writing in fused silica using a femtosecond laser. Through adaptive control of the intensity profile, we also confirm that inhomogeneous pupil illumination causes similar directional effects. We show dynamic control of ultrashort pulses and directional effects during fabrication.

Paper Details

Date Published: 15 March 2013
PDF: 7 pages
Proc. SPIE 8611, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIII, 861111 (15 March 2013); doi: 10.1117/12.2005082
Show Author Affiliations
P. S. Salter, Univ. of Oxford (United Kingdom)
R. D. Simmonds, Univ. of Oxford (United Kingdom)
M. J. Booth, Univ. of Oxford (United Kingdom)


Published in SPIE Proceedings Vol. 8611:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIII
Alexander Heisterkamp; Peter R. Herman; Michel Meunier; Stefan Nolte, Editor(s)

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