Spectroscopy and frequency upconversion in KPb2Cl5:Pr3+ crystal

Rolindes Balda; Joaquin R. Fernandez; A. Mendioroz; M. Voda; M. Al-Saleh

doi:10.1117/12.461648

5 April 2002 Spectroscopy and frequency upconversion in KPb₂Cl₅:Pr³⁺crystal

Rolindes Balda, Joaquin R. Fernandez, A. Mendioroz, M. Voda, M. Al-Saleh

Proceedings Volume 4645, Rare-Earth-Doped Materials and Devices VI; (2002) https://doi.org/10.1117/12.461648
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

In this work we report the upconversion luminescence of Pr³⁺ doped Kpb₂Cl₅ crystal upon excitation in the near infrared region inside the ¹G₄ level. Direct excitation in the visible region has been also carried out. A strong orange luminescence from the ¹D₂ leve, and a less intense blue, green, and red emission from the ³P_0,1 levels have been observed under infrared excitation and compared with those obtained under one photon excitation. The upconverted fluorescence from the ¹D₂ level shows a quadratic dependence on the pump power indicating a two photon process, whereas the pump power dependence of the blue fluorescence from level ³P₀ is nearly cubic (2.62), which indicates a three photon mechanism. Emission from levels ³P_0,1 is also observed under pulsed excitation in the ¹D₂ state. The possible excitation mechanisms responsible for these upconversion processes are discussed.

Citation Download Citation

Rolindes Balda, Joaquin R. Fernandez, A. Mendioroz, M. Voda, and M. Al-Saleh "Spectroscopy and frequency upconversion in KPb₂Cl₅:Pr³⁺crystal", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, (5 April 2002); https://doi.org/10.1117/12.461648

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