title: High-efficiency nonlinear platform with usage of metallic nonlinear susceptibility.
abstract: A scheme with usage of metallic nonlinearity, especially in generating the surface plasmon polariton (SPP) time-reversal wave (TRW), is investigated. It is composed of a metal film and an attached photonic crystal, in which both a far-field-excitable tunneling mode and an SPP guided mode could exist. Two modes are degenerated, deeply penetrated into metal, well overlapped, and localized. Therefore, the tunneling mode acts as the pumping field, while the SPP mode acts as the signal field. Because of the large metallic nonlinear susceptibility, the TRW efficiency could increase thousand times. This scheme can be widely used as a high-efficiency platform for other nonlinear devices.
authors.affiliation: Key Laboratory of Advanced Micro-structure Materials, Ministry of Education, Tongji University, Shanghai 200092, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Lu
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Xue
authors.forename: Hai-tao
authors.initials: HT
authors.lastname: Jiang
authors.forename: Xunya
authors.initials: X
authors.lastname: Jiang
authors.forename: Hong
authors.initials: H
authors.lastname: Chen