Title :
Similar Role of Transient Kerr Effect and Two-Photon Absorption in a Nonlinear Photonic Crystal Nanocavity
Author :
Jun-Fang Wu ; Chao Li
Author_Institution :
Dept. of Phys., South China Univ. of Technol., Guangzhou, China
Abstract :
The impacts of transient Kerr effect (TKE) on the characteristics of a nonlinear photonic crystal (PC) nanocavity are theoretically and numerically investigated. It is found that the features of TKE are very similar to those of two-photon absorption (TPA), but the mechanisms for them are essentially different. The relative magnitude of TKE to TPA is calculated, and the result indicates that the contribution of TKE should also be considered in actual designs of PC devices with Kerr nonlinearity. The theory presented in this paper will be helpful for the precise designs of nonlinear PC devices.
Keywords :
microcavities; nanophotonics; nanostructured materials; optical Kerr effect; photonic crystals; two-photon processes; TKE; TPA; nonlinear PC devices; nonlinear photonic crystal nanocavity; transient Kerr effect; two-photon absorption; Absorption; Cavity resonators; Kerr effect; Nanoscale devices; Photonic crystals; Resonant frequency; Transient analysis; Nonlinear effects in nanostructures; nanocavities; photonic crystals; ultrafast nonlinear processes;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2013.2262673
