Spatio-temporal evolution of femtosecond laser pulses in dielectric multi-layers controlling the damage behavior

Matthias Lenzner; Amir Khabbazi Oskouei; Luke A. Emmert; Marco Jupé; Thomas Willemsen; Morten Steinecke; Detlev Ristau; Wolfgang Rudolph

doi:10.1117/12.2600528

19 November 2021 Spatio-temporal evolution of femtosecond laser pulses in dielectric multi-layers controlling the damage behavior

Matthias Lenzner, Amir Khabbazi Oskouei, Luke A. Emmert, Marco Jupé, Thomas Willemsen, Morten Steinecke, Detlev Ristau, Wolfgang Rudolph

Author Affiliations +

Proceedings Volume 11910, Laser-Induced Damage in Optical Materials 2021; 1191012 (2021) https://doi.org/10.1117/12.2600528
Event: SPIE Laser Damage, 2021, Online Only

Abstract

When designing femtosecond laser mirrors, one tries to minimize the peak intensity within the high-index layers to increase the laser-induced damage threshold. Typically, the optimization procedure utilizes the electric field distribution in the layer stack generated by monochromatic irradiation. This approach is sufficient for certain structures like high-reflectors based on quarter-wave films. More complex structures require to take into account the exact evolution of the pulse parameters such as peak intensity and duration within the multi-layer system. We exemplify this by discussing a merit function that can be included in femtosecond optics design.

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Matthias Lenzner, Amir Khabbazi Oskouei, Luke A. Emmert, Marco Jupé, Thomas Willemsen, Morten Steinecke, Detlev Ristau, and Wolfgang Rudolph "Spatio-temporal evolution of femtosecond laser pulses in dielectric multi-layers controlling the damage behavior", Proc. SPIE 11910, Laser-Induced Damage in Optical Materials 2021, 1191012 (19 November 2021); https://doi.org/10.1117/12.2600528

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