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Title

Void formation in glasses

Author(s)

Hashimoto, Tomohiro;  Juodkazis, Saulius;  Misawa, Hiroaki

Abstract

Void formation as a result of a single tightly focused femtosecond pulse irradiation has been systematically studied in commercial optical-grade glasses of different composition. Correlations between the composition, mass density, glass transition temperature and Young modulus of glass with the void formation threshold have been revealed. The pulse energy necessary to form a void was found reciprocal to the amount of glass-forming oxide in the case of silicate, phosphate and borate glasses. The larger is the bond strength (the cohesion energy per bond) of the glass-forming oxide, the lower is the threshold energy of the pulse, at which the void is formed after a single pulse irradiation.

Publication type

Journal article

Source

New Journal of Physics, Vol. 9 (Aug 2007), article no. 253

Publication year

2007

FOR Code(s)

02 Physical Sciences

Keyword(s)

Bond strength;  Chemical bongs;  Cohesion energy;  Correlation methods;  Elastic moduli;  Femtosecond pulse irradiation;  Glass transition;  Mass density;  Optical glass;  Ultrashort pulses;  Void formation

Publisher

Institute of Physics Publishing

ISSN

1367-2630

Publisher URL

http://dx.doi.org/10.1088/1367-2630/9/8/253

Copyright

Copyright © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. The published version of the paper is reproduced here in accordance with the copyright policy of the publisher.

Full text

Peer reviewed