TITLE

Otto-coupled surface plasmons in a liquid crystal cell

AUTHOR(S)
Ruan, Lizhen; Yang, Fuzi; Sambles, J. R.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/26/2009, Vol. 95 Issue 17, p171102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Surface plasmons on silver in the visible domain are excited using a several micron thick layer of liquid crystal as the optical tunnel barrier. This thickness is possible when the orientation of the director in the liquid crystal varies from homeotropic at the entrance surface (against the coupling prism) to homogeneous on the thick silver layer at the other side of the cell, with the director tilting in a plane normal to the plane of incidence. This geometry also allows the excitation of guided modes, which mixes with the surface plasmon resonance. Both types of mode are then explored as a function of applied voltage.
ACCESSION #
44909886

 

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