Abstract

Applications of 3D-photonic crystals like low-threshold lasers and control of the fluorescence properties of embedded quantum emitters require in most cases, insertion of a controlled defect inside the structure. Indeed, the disruption of the photonic crystal periodicity can create permitted optical frequencies bands within the photonic bandgap: light whose frequency is included in the corresponding passband is then localized in the defect allowing effects such as waveguiding and confinement. Artificial opals are 3D photonic crystals, whose synthesis is based on self-assembly of dielectric spheres. In order to obtain light confinement inside opals, several fabrication methods have been used to create a defect [1].

© 2013 IEEE