[1] SCINTIL Photon, 7 Purvis Louis Neel, F-38040 Grenoble, France
[2] CFA Leti, 17 Rue Martyrs, F-38000 Grenoble, France
[3] Univ Toronto, Dept Elect & Comp Engn, 10 Kings Coll Rd, Toronto, ON M5S 3G4, Canada
[4] Max Planck Inst Microstruct Phys, Weinberg 2, D-06120 Halle, Saale, Germany