Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design

We present a practical numerical model for calculating transmittance and reflectance of multilayer antireflection coatings taking third-order optical nonlinearities into account. Thereby, the impact of different types of discretization of the complex refractive index profile on the predicted system...

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Main Authors: Steffen Wilbrandt, Olaf Stenzel
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Modelling
Subjects:
Online Access:https://www.mdpi.com/2673-3951/6/2/48
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author Steffen Wilbrandt
Olaf Stenzel
author_facet Steffen Wilbrandt
Olaf Stenzel
author_sort Steffen Wilbrandt
collection DOAJ
description We present a practical numerical model for calculating transmittance and reflectance of multilayer antireflection coatings taking third-order optical nonlinearities into account. Thereby, the impact of different types of discretization of the complex refractive index profile on the predicted system performance is investigated. Additionally, aspects of parallelism of the calculations are discussed. It is shown that the inclusion of nonlinearity is essential when large laser intensities are incident to the coating. The developed method is applied for the design of different antireflective coatings matching various types of targets.
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spelling doaj-art-671fe3d6d08049efa4945fe3c6cefca82025-08-20T03:29:44ZengMDPI AGModelling2673-39512025-06-01624810.3390/modelling6020048Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and DesignSteffen Wilbrandt0Olaf Stenzel1Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena, GermanyFraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena, GermanyWe present a practical numerical model for calculating transmittance and reflectance of multilayer antireflection coatings taking third-order optical nonlinearities into account. Thereby, the impact of different types of discretization of the complex refractive index profile on the predicted system performance is investigated. Additionally, aspects of parallelism of the calculations are discussed. It is shown that the inclusion of nonlinearity is essential when large laser intensities are incident to the coating. The developed method is applied for the design of different antireflective coatings matching various types of targets.https://www.mdpi.com/2673-3951/6/2/48antireflection coatingsnonlinear optictwo-photon absorptionthird-order optical nonlinearitycoating design
spellingShingle Steffen Wilbrandt
Olaf Stenzel
Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
Modelling
antireflection coatings
nonlinear optic
two-photon absorption
third-order optical nonlinearity
coating design
title Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
title_full Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
title_fullStr Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
title_full_unstemmed Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
title_short Third-Order Optical Nonlinearities in Antireflection Coatings: Model, Simulation, and Design
title_sort third order optical nonlinearities in antireflection coatings model simulation and design
topic antireflection coatings
nonlinear optic
two-photon absorption
third-order optical nonlinearity
coating design
url https://www.mdpi.com/2673-3951/6/2/48
work_keys_str_mv AT steffenwilbrandt thirdorderopticalnonlinearitiesinantireflectioncoatingsmodelsimulationanddesign
AT olafstenzel thirdorderopticalnonlinearitiesinantireflectioncoatingsmodelsimulationanddesign