20250172433. Lumin (PRESIDENT AND FELLOWS OF HARVARD COLLEGE)

LUMINESCENCE SPECTROSCOPY APPARATUS

Abstract: 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.

Inventor(s): Sascha FELDMANN, Antti-Pekka M. Reponen, Marcel Mattes

CPC Classification: G01J3/4406 ({Fluorescence spectrometry})

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