TITLE

A frequency-addressed plasmonic switch based on dual-frequency liquid crystals

AUTHOR(S)
Liu, Yan Jun; Hao, Qingzhen; Smalley, Joseph S. T.; Liou, Justin; Khoo, Iam Choon; Huang, Tony Jun
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/30/2010, Vol. 97 Issue 9, p091101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A frequency-addressed plasmonic switch was demonstrated by embedding a uniform gold nanodisk array into dual-frequency liquid crystals (DFLCs). The optical properties of the hybrid system were characterized by extinction spectra of localized surface plasmon resonances (LSPRs). The LSPR peak was tuned using a frequency-dependent electric field. A ∼4 nm blueshift was observed for frequencies below 15 kHz, and a 23 nm redshift was observed for frequencies above 15 kHz. The switching time for the system was ∼40 ms. This DFLC-based active plasmonic system demonstrates an excellent, reversible, frequency-dependent switching behavior and could be used in future integrated nanophotonic circuits.
ACCESSION #
53421675

 

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