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18 June 2024 Determining the bandgap dependence of nonlinear absorption in optical quantum nanolaminate coatings
Joshua McCauley, Felix Weiß, Kevin P. Jacob, Xiaochuan Ji, Marco Jupé, Jinlong Zhang, Andreas Wienke, Detlev Ristau
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Proceedings Volume PC13020, Advances in Optical Thin Films VIII; PC1302009 (2024) https://doi.org/10.1117/12.3017398
Event: SPIE Optical Systems Design, 2024, Strasbourg, France
Abstract
At sufficiently high intensities the electronic nonlinear behavior of optical materials dominates the classical linear phenomena. Through laser calorimetric absorption (LCA) measurements this behavior has been characterized and an increase in absorption of over one order of magnitude has been observed. Quantum nanolaminates (QNLs) are uniquely suited to investigating these phenomena as it is possible to tune the refractive index and bandgap. The absorption and electronic behavior of QNLs deposited with Titania and Niobia in conjunction with Silica were investigated using LCA. The impact of defects on the measurements are also discussed.
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Joshua McCauley, Felix Weiß, Kevin P. Jacob, Xiaochuan Ji, Marco Jupé, Jinlong Zhang, Andreas Wienke, and Detlev Ristau "Determining the bandgap dependence of nonlinear absorption in optical quantum nanolaminate coatings", Proc. SPIE PC13020, Advances in Optical Thin Films VIII, PC1302009 (18 June 2024); https://doi.org/10.1117/12.3017398
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KEYWORDS
Optical coatings
Nonlinear optics
Absorption
Light absorption
Quantum optics
Refractive index
Quantum processes
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