PHOTOMULTIPLIER DETECTION OF 10.6 μm RADIATION USING OPTICAL UP-CONVERSION IN PROUSTITE

Abstract

Synthetic single-crystal proustite pumped with collimated pulsed ruby laser radiation has been used to convert 10.6 μm radiation to the visible. Measured values of photon conversion efficiency (Ns/Nir = 1.4 × 10−6) and phase-matched bandwidth (540 Å at 10.6 μm) are in good agreement with theory.