Gkogkou D, Shaykhutdinov T, Oates TWH, Gernert U, Schreiber B, Facsko S, Hildebrandt P, Weidinger IM, Esser N, Hinrichs K (2017)
Publication Type: Journal article
Publication year: 2017
Book Volume: 421
Pages Range: 460-464
DOI: 10.1016/j.apsusc.2016.10.105
The present investigation aims to study the optical response of anisotropic Ag nanoparticle arrays deposited on rippled silicon substrates by performing a qualitative comparison between experimental and theoretical results. Spectroscopic ellipsometry was used along with numerical calculations using finite-difference time-domain (FDTD) method and rigorous coupled wave analysis (RCWA) to reveal trends in the optical and geometrical properties of the nanoparticle array. Ellipsometric data show two resonances, in the orthogonal x and y directions, that originate from localized plasmon resonances as demonstrated by the calculated near-fields from FDTD calculations. The far-field calculations by RCWA point to decoupled resonances in x direction and possible coupling effects in y direction, corresponding to the short and long axis of the anisotropic nanoparticles, respectively.
APA:
Gkogkou, D., Shaykhutdinov, T., Oates, T.W.H., Gernert, U., Schreiber, B., Facsko, S.,... Hinrichs, K. (2017). Characterization of anisotropically shaped silver nanoparticle arrays via spectroscopic ellipsometry supported by numerical optical modeling. Applied Surface Science, 421, 460-464. https://doi.org/10.1016/j.apsusc.2016.10.105
MLA:
Gkogkou, Dimitra, et al. "Characterization of anisotropically shaped silver nanoparticle arrays via spectroscopic ellipsometry supported by numerical optical modeling." Applied Surface Science 421 (2017): 460-464.
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