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Title: Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film

Abstract

The morphology of a columnar thin film (CTF) of silver renders it an effectively biaxially anisotropic continuum. CTFs of silver deposited on one-dimensional gratings of photoresist showed strong blazing action and asymmetrically coupled optical radiation to surface-plasmon-polariton (SPP) waves propagating only along one direction supported by either the CTF/photoresist or the CTF/air interfaces. Homogenization of the CTFs using the Bruggeman formalism revealed them to display hyperbolic dispersion, and the dispersion of SPP waves was adequately described thereby.

Authors:
;  [1];  [2]
  1. Department of Physics, Indian Institute of Technology, Kanpur 208016 (India)
  2. Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
Publication Date:
OSTI Identifier:
22399192
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AIR; ANISOTROPY; ASYMMETRY; COUPLING; INTERFACES; MORPHOLOGY; PERIODICITY; PHOTOCONDUCTIVITY; PLASMONS; POLARONS; SILVER; SURFACES; THIN FILMS

Citation Formats

Dutta, Jhuma, Ramakrishna, S. Anantha, and Lakhtakia, Akhlesh, E-mail: akhlesh@psu.edu. Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film. United States: N. p., 2015. Web. doi:10.1063/1.4904345.
Dutta, Jhuma, Ramakrishna, S. Anantha, & Lakhtakia, Akhlesh, E-mail: akhlesh@psu.edu. Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film. United States. doi:10.1063/1.4904345.
Dutta, Jhuma, Ramakrishna, S. Anantha, and Lakhtakia, Akhlesh, E-mail: akhlesh@psu.edu. Wed . "Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film". United States. doi:10.1063/1.4904345.
@article{osti_22399192,
title = {Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film},
author = {Dutta, Jhuma and Ramakrishna, S. Anantha and Lakhtakia, Akhlesh, E-mail: akhlesh@psu.edu},
abstractNote = {The morphology of a columnar thin film (CTF) of silver renders it an effectively biaxially anisotropic continuum. CTFs of silver deposited on one-dimensional gratings of photoresist showed strong blazing action and asymmetrically coupled optical radiation to surface-plasmon-polariton (SPP) waves propagating only along one direction supported by either the CTF/photoresist or the CTF/air interfaces. Homogenization of the CTFs using the Bruggeman formalism revealed them to display hyperbolic dispersion, and the dispersion of SPP waves was adequately described thereby.},
doi = {10.1063/1.4904345},
journal = {Journal of Applied Physics},
number = 1,
volume = 117,
place = {United States},
year = {Wed Jan 07 00:00:00 EST 2015},
month = {Wed Jan 07 00:00:00 EST 2015}
}