@inproceedings{ccf6e98085df499fb6dc783858c1e9ee,
title = "Towards 3-D laser nano patterning in polymer optical materials",
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.",
keywords = "Femtosecond laser, Nanostructure, PMMA, Polymer, Refractive index, Spatial light modulator, Volume bragg grating, Waveguide",
author = "Scully, {Patricia J.} and Walter Perrie",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Laser-Based Micro- and Nanoprocessing IX ; Conference date: 10-02-2015 Through 12-02-2015",
year = "2015",
doi = "10.1117/12.2078285",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Udo Klotzbach and Kunihiko Washio and Arnold, {Craig B.}",
booktitle = "Laser-Based Micro- and Nanoprocessing IX",
}