Comparative study of directional couplers utilizing long-range surface plasmon polaritons
Applied Optics, Vol. 49, Issue 12, pp. 2397-2402 (2010)
http://dx.doi.org/10.1364/AO.49.002397
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Abstract
We theoretically investigate the comparative study of coupling characteristics of lateral directional couplers and vertical directional couplers utilizing long-range surface plasmon polaritons (LRSPPs). In particular, the effect of metal stripe thickness, width, the separation between the stripes, and the wavelength of operation, on the characteristics of both types of coupler has been studied in detail. An optimum value of the metal stripe thickness has been observed to obtain the minimum coupling length in both cases. The study should be helpful in designing an efficient directional coupler utilizing LRSPPs.
© 2010 Optical Society of America
OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics
ToC Category:
Optics at Surfaces
History
Original Manuscript: January 21, 2010
Revised Manuscript: March 10, 2010
Manuscript Accepted: March 19, 2010
Published: April 20, 2010
Citation
Triranjita Srivastava and Arun Kumar, "Comparative study of directional couplers utilizing long-range surface plasmon polaritons," Appl. Opt. 49, 2397-2402 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-12-2397
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