Open AccessConnected hexagonal photonic crystals with largest full band gap
Author(s) -
Han-Kuei Fu,
Y. F. Chen,
Ruey-Lin Chern,
Chien C. Chang
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.007854
Subject(s) - photonic crystal , materials science , yablonovite , optics , electron beam lithography , optoelectronics , etching (microfabrication) , photonics , band gap , inductively coupled plasma , photonic metamaterial , photonic integrated circuit , lithography , fabrication , plasma , nanotechnology , physics , resist , medicine , alternative medicine , layer (electronics) , quantum mechanics , pathology
A two-dimensional photonic crystal with a large full band gap has been designed, fabricated, and characterized. The photonic crystal design was based on a calculation using inverse iteration with multigrid acceleration. The fabrication of the photonic crystal on silicon was realized by the processes of electron-beam lithography and inductively coupled plasma reactive ion etching. It was found that the hexagonal array of circular columns and rods has an optimal full photonic band gap. In addition, we show that a larger extraction of light from our designed photonic crystal can be obtained when compared with the frequently used photonic crystals reported previously. Our designed PC structure therefore should be very useful for creating highly efficient optoelectronic devices.