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AssigneesPresident and Fellows of Harvard College, Ecole Polytechnique Federale De Lausanne (Epfl)
InventorsSascha FELDMANN, Antti-Pekka M. Reponen, Marcel Mattes
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A luminescence spectroscopy apparatus for time-resolved characterization of a sample emitting circularly polarized light is described, comprising a pulsed laser excitation source configured to generate a laser pulse for exciting the sample, an achromatic quarter-wave plate arranged to receive therethrough light emitted by the sample, a polarization beam splitter arranged downstream to the quarter-wave plate, an optical spectrometer arranged downstream to the polarization beam splitter, a time-gated intensified charge-coupled device arranged to receive light from the optical spectrometer and comprising an image intensifier, and a controller configured to control a pulse generator to apply a gate pulse to the image intensifier for selectively activating the image intensifier, wherein the controller is connected to the pulsed laser excitation source such that the gate pulse is triggerable by the laser pulse of the pulsed laser excitation source.
A luminescence spectroscopy apparatus for time-resolved characterization of a sample emitting circularly polarized light, comprising a pulsed laser excitation source configured to generate a laser pulse for exciting the sample, an achromatic quarter-wave plate arranged to receive therethrough light emitted by the sample, a polarization beam splitter arranged downstream to the quarter-wave plate, an optical spectrometer arranged downstream to the polarization beam splitter, a time-gated intensified charge-coupled device arranged to receive light from the optical spectrometer and comprising an image intensifier, and a controller configured to control a pulse generator to apply a gate pulse to the image intensifier for selectively activating the image intensifier, wherein the controller is connected to the pulsed laser excitation source such that the gate pulse is triggerable by the laser pulse of the pulsed laser excitation source.
The luminescence spectroscopy apparatus according to claim wherein the quarter-wave plate and the polarization beam splitter define a detection path downstream of the sample, wherein the pulsed laser excitation source is configured to define an excitation path which is parallel to the detection path.
Dependencies are inferred from the claim text.