Prof. Isabelle Ledoux-Rak graduated from Ecole Normale Superieure in Paris (1981) and Ecole Nationale Sup?rieure des Telecommunications (1983). She received her PhD in 1988 with Joseph Zyss at CNET and University Paris-Sud, on nonlinear optical (NLO) properties of crystals and Langmuir-Blodgett films. She is currently appointed as Professor in the Physics Departement and Laboratoire de Photonique Quantique et Mol?culaire (LPQM) at Ecole Normale Sup?rieure de Cachan, and as Head of LPQM. Her current research interest is focused on molecular and supramolecular engineering of molecules and materials for photonic applications, especially multifunctional nanoscale compounds and structures combining NLO and laser properties. She recently reported the evidence of a supramolecular acentric order in dendritic structures and hybrid organic-inorganic nanoparticules in solution and polymer matrices. Another activity focused on the elaboration of waveguiding polymer devices combining NLO and gain properties in the near infrared using erbium complexes in currently in progress. Isabelle Ledoux-Rak is also coordinating a multidisciplinary Erasmus Mundus Master course, entitled “Molecular Nano- and biophotonics for telecommunications and biotechnologies” and starting in September 2006. I. Ledoux-Rak published more than 130 papers is various Physics, Chemical Physics and Chemistry Journals (Applied Physics Letters, Journal of the Optical Society of America, Nonlinear Optics, Chemical Physics, Journal of Physical Chemistry, Journal of the American Chemical Society, Chemistry of Materials…) She gave more than 140 communications in International Conferences and Workshops, including 40 invited talks. She was awarded the prize of the Physical Chemistry Division of the French Chemical Society in 1989. I Ledoux-Rak and J. Zyss were also jointly awarded the Yves Rocard Prize of the French Physical Society for instrumentation in 1996. I. Ledoux-Rak is personally involved in various collaborations in the domain of material engineering, e.g. University of California at Santa Barbara (prof. G. Bazan), University of Milano (Italy) (Profs. R. Ugo and D. Roberto), Universities Autonoma and Complutense in Madrid (profs. T. Torres and M. Cano, respectively), Technion Institute in Israel (E. Lifshitz). She is also taking part in several European Projects in the domain of micro- and Nanophotonics.