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Article

Combined Modeling of the Optical Anisotropy of Porous Thin Films

1
Research Computing Center, M. V. Lomonosov Moscow State University, Leninskie Gory, 1, 119991 Moscow, Russia
2
Moscow Center of Fundamental and Applied Mathematics, Leninskie Gory, 1, 119234 Moscow, Russia
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(6), 517; https://doi.org/10.3390/coatings10060517
Received: 14 May 2020 / Revised: 23 May 2020 / Accepted: 25 May 2020 / Published: 28 May 2020
In this article, a combined approach for studying the optical anisotropy of porous thin films obtained by the glancing angle deposition is presented. This approach combines modeling on the atomistic and continuum levels. First, thin films clusters are obtained using the full-atomistic molecular dynamics simulation of the deposition process. Then, these clusters are represented as a medium with anisotropic pores, the shapes parameters of which are determined using the Monte Carlo based method. The difference in the main components of the refractive index is calculated in the framework of the anisotropic Bruggeman effective medium theory. The presented approach is tested and validated by comparing the analytical and simulation results for the model problems, and then is applied to silicon dioxide thin films. It is found that the maximum difference between the main components of the refractive index is 0.035 in a film deposited at an angle of 80°. The simulation results agree with the experimental data reported in the literature. View Full-Text
Keywords: anisotropy; thin films; glancing angle deposition; refractive index; molecular dynamics anisotropy; thin films; glancing angle deposition; refractive index; molecular dynamics
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MDPI and ACS Style

Grigoriev, F.V.; Sulimov, V.B.; Tikhonravov, A.V. Combined Modeling of the Optical Anisotropy of Porous Thin Films. Coatings 2020, 10, 517. https://doi.org/10.3390/coatings10060517

AMA Style

Grigoriev FV, Sulimov VB, Tikhonravov AV. Combined Modeling of the Optical Anisotropy of Porous Thin Films. Coatings. 2020; 10(6):517. https://doi.org/10.3390/coatings10060517

Chicago/Turabian Style

Grigoriev, F. V., V. B. Sulimov, and A.V. Tikhonravov 2020. "Combined Modeling of the Optical Anisotropy of Porous Thin Films" Coatings 10, no. 6: 517. https://doi.org/10.3390/coatings10060517

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