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Proceedings Paper

Breaking stress of glass welded with femtosecond laser pulses at high repetition rates
Author(s): Sören Richter; Sven Döring; Thomas Peschel; Ramona Eberhardt; Stefan Nolte; Andreas Tünnermann
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Paper Abstract

We report on measurements of the breaking stress of glass substrates welded with ultrashort laser pulses. Femtosecond laser pulses at repetition rates in the MHz range are focused at the interface between two substrates, resulting in multiphoton absorption and heat accumulation from successive pulses. This leads to local melting and subsequent resolidification results in the formation of strong bonds at the interface. The achievable breaking stress of this flexible and local bonding process is discussed in detail in dependence of the processing parameters.

Paper Details

Date Published: 11 February 2011
PDF: 8 pages
Proc. SPIE 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI, 79250P (11 February 2011); doi: 10.1117/12.874529
Show Author Affiliations
Sören Richter, Friedrich-Schiller-Univ. Jena (Germany)
Sven Döring, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Peschel, Fraunhofer Institute of Applied Optics and Precision Engineering (Germany)
Ramona Eberhardt, Fraunhofer Institute of Applied Optics and Precision Engineering (Germany)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute of Applied Optics and Precision Engineering (Germany)
Andreas Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute of Applied Optics and Precision Engineering (Germany)


Published in SPIE Proceedings Vol. 7925:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI
Alexander Heisterkamp; Joseph Neev; Stefan Nolte, Editor(s)

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