title: Nonlinear resonance-enhanced excitation of surface plasmon polaritons.
abstract: 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.
authors.affiliation: Pohl Institute of Solid State Physics, Tongji University, Shanghai, China.
authors.forename: Chun-hua
authors.initials: CH
authors.lastname: Xue
authors.forename: Hai-tao
authors.initials: HT
authors.lastname: Jiang
authors.forename: Hong
authors.initials: H
authors.lastname: Chen