Compact device for characterizing a photoluminescent substance

Abstract

Device (1) for characterizing a substance (2) capable of emitting a photoluminescence radiation (Rp) in a first spectral range, the device (1) comprising: an electroluminescent component (3), at least semi-transparent in the first spectral range, and comprising first and second opposite surfaces (30, 31), the electroluminescent component (3) being suitable for emitting an excitation radiation (Re1) outgoing from the first surface (30), emitted in a first spectral range according to a circular polarization state; the excitation radiation (Re1) outgoing from the first surface (30) being able to pass through the electroluminescent component (3), after being reflected, and exit from the second surface (31); a polarization filter (4), arranged to filter the excitation radiation (Re2) outgoing from the second surface (31), and suitable for modifying the circular polarization state so as to obtain an extinguishing of the excitation radiation (Re2) outgoing from the second surface (31) of the electroluminescent component (3); a detector (5), arranged to detect the photoluminescence radiation (Rp) outgoing from the polarization filter (4).

Dependencies are inferred from the claim text.