title: Strong optical modulation of surface plasmon polaritons in metal/semiconductor nanostructures.
abstract: We demonstrate strong modulation of the transmission around the surface plasmon polariton (SPP) resonance in metal/semiconductor hybrid nanostructures based on Ag film on top of InGaAs. The change in the real and imaginary parts of the refractive index due to photoexcited carriers in InGaAs generates a shift in the SPP resonance and enhanced transmission near the SPP resonance. Temporal evolution of the complex refractive index was traced by comparing the transient transmission with finite-difference time-domain (FDTD) simulations.
authors.forename: Seung-Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Won-Seok
authors.initials: WS
authors.lastname: Han
authors.forename: Tae-Young
authors.initials: TY
authors.lastname: Jeong
authors.forename: Hyang-Rok
authors.initials: HR
authors.lastname: Lee
authors.forename: Dai-Sik
authors.initials: DS
authors.lastname: Kim
authors.forename: Kwang-Jun
authors.initials: KJ
authors.lastname: Ahn
authors.forename: Ki-Ju
authors.initials: KJ
authors.lastname: Yee