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Proceedings Paper

Towards 3-D laser nano patterning in polymer optical materials
Author(s): Patricia J. Scully; Walter Perrie
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Paper Abstract

Progress towards 3-D subsurface structuring of polymers using femtosecond lasers is presented. Highly localised refractive index changes can be generated deep in transparent optical polymers without pre doping for photosensitisation or post processing by annealing. Understanding the writing conditions surpasses the limitations of materials, dimensions and chemistry, to facilitate unique structures entirely formed by laser-polymeric interactions to overcome materials, dimensional, refractive index and wavelength constraints.. Numerical aperture, fluence, temporal pulselength, wavelength and incident polarisation are important parameters to be considered, in achieving the desired inscription. Non-linear aspects of multiphoton absorption, plasma generation, filamentation and effects of incident polarisation on the writing conditions will be presented.

Paper Details

Date Published: 12 March 2015
PDF: 12 pages
Proc. SPIE 9351, Laser-based Micro- and Nanoprocessing IX, 935113 (12 March 2015); doi: 10.1117/12.2078285
Show Author Affiliations
Patricia J. Scully, The Univ. of Manchester (United Kingdom)
Walter Perrie, Univ. of Liverpool (United Kingdom)


Published in SPIE Proceedings Vol. 9351:
Laser-based Micro- and Nanoprocessing IX
Udo Klotzbach; Kunihiko Washio; Craig B. Arnold, Editor(s)

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