Fabrication Of Three-dimensional Photonic Crystals And Investigation Of The Introduced Disorder Effects On Photonic Crystals

This thesis is funded by the National Natural Science Foundation (11001088,11264017), Jiangxi Natural Science Foundation (2010GQW0025,20122BAB202006), Jiangxi Science Research Project (20112BBE50033) and Department ofeducation of Jiangxi Province technology project (GJJ10099, GJJ13234). We havefabricated three-dimensional photonic crystals by using nonmagnetic ellipsoids as thebuilding blocks, and studied the introduced disorder effect on the optical properties ofphotonic crystals. The key points of this thesis are presented as follows:1.The concept, the structure, properties, and applications of photonic crystals areintroduced systematically. The purpose of this paper has been illustrated here.2.Several preparation methods of photonic crystals are discussed, including theself-assembly of colloid particle under the electric field, centrifugal force, and verticalself-assembly.By comparing the advantages and disadvantages of these methods, wecan choose an optimal method among these methods to fabricate three-dimensionalphotonic crystals.3.Nonmagnetic ellipsoids as the building blocks are used to fabricate three-dimensional photonic crystals was studied and a experimental setup of self-assemblyis designed that can provide a stable and controllable growth environment to organizethese nonmagnetic ellipsoidal colloids into high-quality of three-dimensional photoniccrystals.4.Three-dimensional photonic crystals are fabricated by the verticalself-assembly method, and the transformation of the photonic crystal structures fromordered to disordered is carried out via mixing silica spheres in photonic crystals atdifferent concentrations（0.02%-0.2%）. The transmission and reflection properties ofthese samples are measured and analyzed.