Open AccessOptimizing nanophotonic cavity designs with the gravitational search algorithm
Author(s) -
Timothy W. Saucer,
Vanessa Sih
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.020831
Subject(s) - photonic crystal , optics , nanophotonics , mode volume , mode (computer interface) , q factor , quality (philosophy) , volume (thermodynamics) , metamaterial , computer science , enhanced data rates for gsm evolution , quantum optics , physics , optoelectronics , algorithm , resonator , telecommunications , optical fiber , fiber optic sensor , quantum mechanics , graded index fiber , operating system
Designing photonic crystal cavities with high quality factors and low mode volumes is of great importance for maximizing interactions of light and matter in metamaterials. Previous work on photonic crystal cavities has revealed dramatic improvements in performance by fine-tuning the device design. In L3 cavities, slight shifts of the holes on the edge of the cavity have been found to greatly increase quality factors without significantly altering the mode volume. Here we demonstrate utilizing a nature inspired search algorithm to efficiently explore a large parameter space. The results converge upon a new cavity model with a high quality factor to mode volume ratio (Q/V = 798,000 (λ/n)(-3)).