**Author details**

C. Ley1\*, C. Carré2 , A. Ibrahim1 and X. Allonas1

\*Address all correspondence to: christian.ley@uha.fr

1 Laboratory of Macromolecular Photochemistry and Engineering (LPIM), University of Haute Alsace, ENSCMu, Mulhouse, France

2 CNRS, FOTON Laboratory, UMR 6082, Lannion Cedex, France
