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Time-resolved microscopy for optimizing in-volume glass processing using ultra short laser pulses

: Bergner, K.; Seyfarth, B.; Kumkar, M.; Tünnermann, A.; Nolte, S.


Optical Society of America -OSA-, Washington/D.C.:
CLEO: Applications and Technology : Part of CLEO: 2016. 5-10 June 2016, San Jose, California, United States
Washington, DC: OSA, 2016 (OSA Technical digest series)
ISBN: 978-1-943580-11-8
Paper ATu4K.1
Conference on Lasers and Electro-Optics - Applications and Technology (CLEO A&T) <2016, San Jose/Calif.>
Fraunhofer IOF ()

Time-resolved in-situ microscopy is used to gain insights for tailoring material modifications inside a transparent material. The types of modifications are linked to the free electron densities within the laser-induced plasma. Densities below 1019 cm-3 lead to defect states and higher densities around 1020 cm-3 to disruptions and cracks. In this process the plasma ignition and densification crucially depends on the pulse duration.