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Abstract : Up-conversion by APTE effect Addition de Photons par Transferts d-Energie in Yb3+, Er3+ doped vitroceramics is used for the summation of 1.5 μm photons signal with 0.96 μm pump. We discuss the different transfers schemes giving respectively the useful signal the losses and the noises in order to obtain a high detectivity IRQC Infra Red Quantum Counter. Optimizing the vitroceramics preparation as well as the pumping flux intensity, a NEP of 10-11 W-Hz1-2 has been obtained at room temperature.

Keywords : infrared detectors photon counting 1.5 micron 1.5 mu m high detectivity quantum counter energy transfers diode pumped glass ceramics APTE effect transfer schemes useful signal losses noises IRQC Infra Red Quantum Counter pumping flux intensity





Autor: F. Auzel P.A. Santa-Cruz G.F. De Sá

Fuente: https://hal.archives-ouvertes.fr/



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