Modal reshaping of the electromagnetic mode density near band edges in finite one-dimensional periodic photonic bandgap structures

Qin Zou; Abderrahim Ramdane; Badr-Eddine Benkelfat

doi:10.1117/12.481711

5 September 2002 Modal reshaping of the electromagnetic mode density near band edges in finite one-dimensional periodic photonic bandgap structures

Qin Zou, Abderrahim Ramdane, Badr-Eddine Benkelfat

Author Affiliations +

Proceedings Volume 4923, Nano-Optics and Nano-Structures; (2002) https://doi.org/10.1117/12.481711
Event: Photonics Asia, 2002, Shanghai, China

Abstract

We show that cascading two finite one-dimensional periodic photonic band-gap structures may result, due to the multiple confinement of the electromagnetic field, in a significant modification of the modal distribution of the electromagnetic density of modes (DOM) around a band edge. As a result of the combination of the band-gap effects and the band-edge effects, the enhancement and the optimum localization of the DOM can be simultaneously obtained. The general approach is presented. The basic rules and the main steps for the design of such a structure are described. Some numerical results are given and discussed, by using alternating Ga0.7Al0.3As/AlAs layer quarter-wave and mixed quarter-wave/half-wave stacks. The principle of the present work, although described within the limits of linear and dispersionless materials, may be directly applied to nonlinear parametric processes.

Citation Download Citation

Qin Zou, Abderrahim Ramdane, and Badr-Eddine Benkelfat "Modal reshaping of the electromagnetic mode density near band edges in finite one-dimensional periodic photonic bandgap structures", Proc. SPIE 4923, Nano-Optics and Nano-Structures, (5 September 2002); https://doi.org/10.1117/12.481711

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