Abstract

We report on the study of localized surface plasmon resonances (LSPRs) arising in arrays of metal (Au) nanoclusters, dimers, and nanoantennas under the influence of external electromagnetic radiation. Using nanolithography, the plasmonic arrays with different morphologies including cylindrical nanoclusters and dimers, linear and H-type nanoantennas were fabricated. Their LSPR frequencies were determined from the analysis of optical reflection and IR spectra. LSPR frequency depends strongly on morphology of metal nanostructures and is varied from visible to terahertz spectral range with variation of the structures from cylindrical nanoclusters to the nanoantennas with a high aspect ratio. We established the interconnection between the structural parameters of the plasmonic arrays and their LSPR frequencies based on the results of 3D electrodynamic simulations.

Details

Title
Arrays of Metal Nanostructures for Plasmon-enhanced Spectroscopy
Author
Milekhin, A G 1 ; Kuznetsov, SA 2 ; Rodyakina, EE 1 ; Anikin, K V 3 ; Milekhin, IA 4 ; Veber, S L 5 ; Latyshev, A V 1 ; Zahn, DRT 4 

 Rzhanov Institute of Semiconductor Physics, Lavrentiev Ave. 13, 630090 Novosibirsk, Russia; Novosibirsk State University, Pirogov 2, 630090 Novosibirsk, Russia 
 Novosibirsk State University, Pirogov 2, 630090 Novosibirsk, Russia; Rzhanov Institute of Semiconductor Physics, Novosibirsk Branch “TDIAM”, Lavrentiev Ave. 2/1, Novosibirsk 630090, Russia 
 Rzhanov Institute of Semiconductor Physics, Lavrentiev Ave. 13, 630090 Novosibirsk, Russia 
 Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany 
 International Tomography Center SB RAS, Institutskaya, 3a, 630090 Novosibirsk, Russia 
Publication year
2020
Publication date
Mar 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2569109744
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.