Magnetic-field modulation of surface plasmon polaritons on gratings
Optics Letters, Vol. 35, Issue 10, pp. 1557-1559 (2010)
http://dx.doi.org/10.1364/OL.35.001557
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Abstract
The propagation of surface plasmon polaritons (SPPs) on gratings can be experimentally modified when magneto-optically active materials are used. We have observed this effect in Au–Co thin-film bilayers where a polymer grating was patterned on the upper surface. In addition, Au–Co–Au trilayers were grown on polycarbonate gratings, and the Co layer thicknesses and placement from the upper interface were varied to further investigate this effect. We show that the Co layer must be tailored to balance optical absorption and magneto-optical activity, while the pitch of the grating can be adjusted to tune the angular dependence of the field-dependent SPP excitation.
© 2010 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.3820) Materials : Magneto-optical materials
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics
ToC Category:
Materials
History
Original Manuscript: January 14, 2010
Revised Manuscript: March 8, 2010
Manuscript Accepted: March 30, 2010
Published: May 5, 2010
Citation
C. Clavero, K. Yang, J. R. Skuza, and R. A. Lukaszew, "Magnetic-field modulation of surface plasmon polaritons on gratings," Opt. Lett. 35, 1557-1559 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1557
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