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Proceedings Paper

Femtosecond laser microfabrication in polymers towards memory devices and microfluidic applications
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Paper Abstract

We have investigated femtosecond laser induced microstructures, gratings, and craters in four different polymers: poly methyl methacrylate (PMMA), poly dimethyl siloxane (PDMS), polystyrene (PS) and poly vinyl alcohol (PVA) using Ti:sapphire laser delivering 800 nm, 100 femtosecond (fs) pulses at 1 kHz repetition rate with a maximum pulse energy of 1 mJ. Local chemical modifications leading to the formation of optical centers and peroxide radicals which were studied using UV-Visible absorption and emission, confocal micro-Raman and Electron Spin Resonance (ESR) spectroscopic techniques.

Paper Details

Date Published: 22 November 2011
PDF: 13 pages
Proc. SPIE 8190, Laser-Induced Damage in Optical Materials: 2011, 81900R (22 November 2011);
Show Author Affiliations
K. L. N. Deepak, Univ. of Hyderabad (India)
S. Venugopal Rao, Univ. of Hyderabad (India)
D. Narayana Rao, Univ. of Hyderabad (India)

Published in SPIE Proceedings Vol. 8190:
Laser-Induced Damage in Optical Materials: 2011
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; M. J. Soileau, Editor(s)

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