Dispersion-induced localized modes in weakly random media

Yanling Han; Hong Wang; Zheng biao Ouyang

doi:10.1117/12.756062

4 January 2008 Dispersion-induced localized modes in weakly random media

Yanling Han, Hong Wang, Zheng biao Ouyang

Proceedings Volume 6831, Nanophotonics, Nanostructure, and Nanometrology II; 683116 (2008) https://doi.org/10.1117/12.756062
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Using a time-independent calculation based on self-consistent transfer matrix method, we numerically investigate localized mode in a one-dimensional (1D) weakly disordered medium containing Lorentz dispersive material. The result show that the random medium containing dispersive media has frequency-dependent localized modes. Such localized modes strongly depend on dispersive parameters, such as transverse optical phonon frequency ω₀, oscillator strength Χ₀ and thickness of dispersive layer. The resonant frequency of such mode can be modified to shift by applying a dispersive medium. By this study, we will acquire some knowledge of localized mode in dispersive disorder medium; furthermore, this study suggests a method to realize tenability of localized mode, which is important for application of random laser.

Citation Download Citation

Yanling Han, Hong Wang, and Zheng biao Ouyang "Dispersion-induced localized modes in weakly random media", Proc. SPIE 6831, Nanophotonics, Nanostructure, and Nanometrology II, 683116 (4 January 2008); https://doi.org/10.1117/12.756062

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