Open AccessAperiodic photonic quantum-well structures for multiple channeled filtering at arbitrary preassigned frequencies
Author(s) -
Yan Zhang,
Bing Gu
Publication year - 2004
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.005910
Subject(s) - aperiodic graph , photonics , optics , simulated annealing , computer science , quantum , dielectric , optical filter , photonic crystal , materials science , physics , optoelectronics , algorithm , mathematics , quantum mechanics , combinatorics
Designs of aperiodic photonic quantum-well (APQW) structures to achieve multiple channeled filtering at arbitrary preassigned frequencies are done by using the simulated annealing algorithm with a special merit function. The APQW structure consists of aperiodically stacked dielectric-layers sandwiched by two finite-length prototype photonic crystals (PCs). The insert of the APQWs can generate the specified defect states with predetermined frequencies. Numerical simulations show that the designed APQWs can achieve the desired specification.