Polarization-tunable plasmon-enhanced extraordinary transmission through metallic films using asymmetric cruciform apertures.
Plasmon-enhanced transmission of light incident on a periodic array of nanoscale, asymmetric cruciform patterns is demonstrated. The corresponding transmission spectra are shown to be polarization dependent and possess unique properties, such as the existence of isosbestic points for which the transmission is polarization insensitive. Transmission peaks corresponding to localized surface plasmon resonances and extended surface plasmons are also identified.
Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA. rmr48@columbia.edu
Ryan M
RM
Roth
Nicolae C
NC
Panoiu
Matthew M
MM
Adams
Jerry I
JI
Dadap
Richard M
RM
Osgood