| Institut(e): | Fachbereich
Physik der Universität
Konstanz Universitätsstraße 10 D-78457 Konstanz Tel.: ++49 (0) 7531 / 88-2415 oder -3783 Fax: ++49 (0) 7531 / 88-3888 |
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| Projektleiter: | Prof. Dr. Georg
Maret Tel.: 0049 - 7531/88-4151 Fax.: 0049 - 7531/88-3090 |
georg.maret@uni-konstanz.de |
| Sekretariat: | ||
| Mitarbeiter: | Dr. Stefanie Eiden Tel.: 0049 - 7531/883869 |
stefanie.eiden@uni-konstanz.de |
| Abstract: Photonic crystals are materials patterned with a periodic variation of the refractive index creating a range of forbidden optical frequencies called a photonic band gap. A photonic band gap modifies fundamentally the propagation of light and emission processes. Based upon these effects novel integrated-photonic materials can be designed, opening various new areas of applications. We propose to synthesize photonic crystals via two different routes. 1. By synthesizing crystals, composed of colloidal high index hollow spheres with mono- and bimodal sphere size. For this purpose monodisperse hollow spheres will be produced in a first step and than assembled to large 3D crystals through a novel magnetic field > assisted crystallization process. 2. By producing crystals via self-assembly of micelles in a sol-gel process. Structure and optical properties of the photonic crystals will be investigated by electron microscopy, UV-VIS spectroscopy and measurements of the excited-state lifetime of inserted dye molecules. |
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