1. Laboratory of Photonics and Interfaces Department of Chemistry and Chemical Engineering École Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
2. Department of Metallurgical and Materials Engineering Karamanoglu Mehmetbey University Karaman Turkey
3. Institut für Angewandte Physik Universität Tübingen 72076 Tübingen Germany
4. Laboratory of Photomolecular Science École Polytechnique Fédérale de Lausanne Station 6 1015 Lausanne Switzerland