Breaking stress of glass welded with femtosecond laser pulses at high repetition rates

Sören Richter; Sven Döring; Thomas Peschel; Ramona Eberhardt; Stefan Nolte; Andreas Tünnermann

doi:10.1117/12.874529

11 February 2011 Breaking stress of glass welded with femtosecond laser pulses at high repetition rates

Sören Richter, Sven Döring, Thomas Peschel, Ramona Eberhardt, Stefan Nolte, Andreas Tünnermann

Proceedings Volume 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI; 79250P (2011) https://doi.org/10.1117/12.874529
Event: SPIE LASE, 2011, San Francisco, California, United States

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.

Citation Download Citation

Sören Richter, Sven Döring, Thomas Peschel, Ramona Eberhardt, Stefan Nolte, and Andreas Tünnermann "Breaking stress of glass welded with femtosecond laser pulses at high repetition rates", Proc. SPIE 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI, 79250P (11 February 2011); https://doi.org/10.1117/12.874529

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