Tuning resonant optical transmission of metallic nanoslit arrays with embedded microcavities
Optics Letters, Vol. 34, Issue 9, pp. 1411-1413 (2009)
http://dx.doi.org/10.1364/OL.34.001411
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Abstract
We numerically study the characteristics of optical transmission of metallic nanoslit arrays (MNSAs) with embedded microcavities (MC-MNSAs) and demonstrate that passbands of the transmission spectra can be monotonously tuned by adjusting the dimensions of the microcavities. The study discloses that spectra of conventional MNSAs and MC-MNSAs are determined mainly by cavity resonances of the slits or embedded microcavities, modified by in-plane surface-plasmon wave resonances. It is also found that coupling of cavity resonances between neighboring slits or microcavities has considerable effects on the passbands. The MC-MNSA structure is shown to have potentials in applications of tunable filter arrays.
© 2009 Optical Society of America
OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(260.5740) Physical optics : Resonance
ToC Category:
Physical Optics
History
Original Manuscript: November 26, 2008
Revised Manuscript: February 24, 2009
Manuscript Accepted: March 20, 2009
Published: April 24, 2009
Citation
Zhijun Sun and Xiaoliu Zuo, "Tuning resonant optical transmission of metallic nanoslit arrays with embedded microcavities," Opt. Lett. 34, 1411-1413 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-9-1411
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