We theoretically investigate nonlinear resonance-enhanced excitation of surface plasmon polaritons in a metal coated by a one-dimensional photonic crystal. Tunneling modes above the air–light line can be directly excited in this structure. Then, with suitable parameters, photon energy and momentum conservation between the tunneling mode and the surface plasmon polaritons can be realized by means of nonlinear four-wave mixing. Compared with the nonlinear excitation of surface plasmon polaritons in a bulk metal [ Phys. Rev. Lett. 103, 266802 (2009)], the conversion efficiency in our structure is noticeably enhanced.
© 2011 Optical Society of America
Optics at Surfaces
Original Manuscript: November 23, 2010
Revised Manuscript: February 4, 2011
Manuscript Accepted: February 7, 2011
Published: March 9, 2011
Chun-hua Xue, Hai-tao Jiang, and Hong Chen, "Nonlinear resonance-enhanced excitation of surface plasmon polaritons," Opt. Lett. 36, 855-857 (2011)