title: Rapid wide-field photon counting imaging with microsecond time resolution.
abstract: We report a novel wide-field imaging method capable of time-correlated single photon counting. It is based on a photon counting image intensifier coupled to an ultra-fast CMOS camera running at 40 kHz frame rate. Using a pulsed excitation source and decaying luminescent sample, the arrival times of hundreds of photons can be determined simultaneously in many pixels with microsecond resolution and reduced photon pile-up. The detection system is mounted on an inverted microscope and applied to time-resolved imaging of Europium-containing polyoxometalate nanoparticles.
authors.affiliation: Department of Physics, King’s College London, Strand, London WC2R 2LS, UK.
authors.forename: Klaus
authors.initials: K
authors.lastname: Suhling
authors.forename: Nicolas
authors.initials: N
authors.lastname: Sergent
authors.forename: James
authors.initials: J
authors.lastname: Levitt
authors.forename: Mark
authors.initials: M
authors.lastname: Green