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.
Original language | English (US) |
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Article number | 013102 |
Journal | Journal of Applied Physics |
Volume | 117 |
Issue number | 1 |
DOIs | |
State | Published - Jan 7 2015 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy