Femtosecond laser microfabrication in polymers towards memory devices and microfluidic applications

K. L. N. Deepak; S. Venugopal Rao; D. Narayana Rao

doi:10.1117/12.899175

22 November 2011 Femtosecond laser microfabrication in polymers towards memory devices and microfluidic applications

K. L. N. Deepak, S. Venugopal Rao, D. Narayana Rao

Proceedings Volume 8190, Laser-Induced Damage in Optical Materials: 2011; 81900R (2011) https://doi.org/10.1117/12.899175
Event: SPIE Laser Damage, 2011, Boulder, Colorado, United States

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.

Citation Download Citation

K. L. N. Deepak, S. Venugopal Rao, and D. Narayana Rao "Femtosecond laser microfabrication in polymers towards memory devices and microfluidic applications", Proc. SPIE 8190, Laser-Induced Damage in Optical Materials: 2011, 81900R (22 November 2011); https://doi.org/10.1117/12.899175

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