1. School of Physics and Astronomy
and Photon Science Institute, Alan Turing Building, The University of Manchester, Oxford Road, Manchester M13
9PL, U.K.
2. IOM CNR, Laboratorio
TASC, S.S.
14 Km. 163,5, I-34149 Basovizza, Trieste, Italy
3. Sincrotrone Trieste S.C.p.A. di interesse nazionale, Strada Statale 14 -
km 163,5 in Area Science Park, 34149 Basovizza, Trieste, Italy
4. Lund Universitet, MAX-lab, Ole Römers väg 1, SE-223 63 Lund,
Sweden
5. Laboratory of Photonics
and
Interfaces, Institute of Chemical Science and Engineering, Faculty
of Basic Science, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland