1. Department of Nonlinear Phenomena
2. Institute for Experimental Physics
3. Otto von Guericke University Magdeburg
4. Magdeburg
5. Germany
6. Departamento de Física Aplicada II
7. Facultad de Ciencia y Tecnología
8. E-48080 Bilbao
9. Spain
10. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program
11. Kent State University
12. Kent
13. USA
14. Department of Physics
15. Department of Chemistry
16. University of Hull
17. Hull HU6 7RX
18. UK