New theory of femtosecond induced changes and nanopore formation

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Conference Proceeding
Proceedings of SPIE - The International Society for Optical Engineering, 2012, 8351
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Recent results confirm the presence of molecular oxygen proving that recombination of dissociated silica bonds does not occur. This combined with the observation of nanopores within the nanograting structure in silica, leads to a new interpretation of femtosecond processing based on the unusual characteristics of quenching of tetrahedral silica compared to other glasses. This new approach suggests very different directions and implications for devices, including sensors, based on femtosecond laser processing of glasses. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
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