Open AccessRapid wide-field photon counting imaging with microsecond time resolution
Author(s) -
Klaus Suhling,
Nicolas Sergent,
James A. Levitt,
Mark Green
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.025292
Subject(s) - microsecond , photon counting , optics , image intensifier , photon , frame rate , temporal resolution , image resolution , materials science , luminescence , europium , physics , microscopy , cmos sensor , pixel
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.