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22 March 2018 Approaches toward optimized laser-induced damage thresholds of dispersive compensating mirrors applying nanolaminates
T. Willemsen, M. Brinkmann, M. Jupé, M. Gyamfi, S. Schlichting, D. Ristau
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Proceedings Volume 10447, Laser-Induced Damage in Optical Materials 2017; 1044712 (2018) https://doi.org/10.1117/12.2281126
Event: SPIE Laser Damage, 2017, Boulder, Colorado, United States
Abstract
Ultra-short laser applications require high quality dielectric optics. The natural dispersion of light needs to be matched by dielectric components. However such dispersive components are very challenging for the deposition process and are characterized by high field intensities inside the layer stack. Such layers are expected to diminish the possible laser induced damage thresholds (LIDTs) because of their low optical gap value for suitable high refractive index materials. This paper reports about the manufacturing of amorphous nanolaminates to tune the optical gap. Such sequences are substituted into a conventional high reflective mirror to decrease the electric field of binary Tantala layers by 30 % which correlates to an improvement in LIDT of almost 16%.
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T. Willemsen, M. Brinkmann, M. Jupé, M. Gyamfi, S. Schlichting, and D. Ristau "Approaches toward optimized laser-induced damage thresholds of dispersive compensating mirrors applying nanolaminates", Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 1044712 (22 March 2018); https://doi.org/10.1117/12.2281126
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KEYWORDS
Mirrors
Refractive index
Dielectrics
Laser damage threshold
Optics manufacturing
Quantum wells
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