Regensburg 2004 – scientific programme
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HL: Halbleiterphysik
HL 6: Photonische Kristalle I
HL 6.3: Talk
Monday, March 8, 2004, 13:15–13:30, H15
Tuneable Opals — •A. von Rhein1, T. Kramer2, T. Roeder2, K. Huber2, and S. Greulich-Weber1 — 1University of Paderborn, Fakulty of Science, Physics Department, D-33098 Paderbron, Germany — 2University of Paderborn, Fakulty of Science, Chemistry Department, D-33098 Paderbron, Germany
Photonic crystals already have been realized thru a wide range of methods. In particular nature has developed a selfassembling technique of creating photonic crytals. Nanospheres of about 200-400 nm diameter build up a so called colloidal crystal. These crystals are also known as opals. Mankind has developed further methods to invert opals by filling up the space around the spheres with another material and expunge the spheres. By means of new research results on fireopals, we will show first principles of tuneable photonic crystals and we will also extend these to inverted opals which are made of titanium dioxide.