$Er^{3+}$ luminescence as a sensor of high pressure and strong external magnetic fields


Valiente, R. and Millot, M. and Rodriguez, F. and Gonzalez, J. and Broto, J-M. and George, S. and Garcia-Revilla, S. and Romanyuk, Y. and Pollnau, M. (2009) $Er^{3+}$ luminescence as a sensor of high pressure and strong external magnetic fields. High Pressure Research, 29 (4). pp. 748-753. ISSN 0895-7959

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Abstract:In this paper, we present the preliminary results of the combined effect of high pressure (up to 7.5 GPa) and strong external magnetic fields (up to 28.5 T) on the photoluminescence (PL) properties of $Er^{3+}–Yb^{3+}$ co-doped single-crystal thin films of well-oriented $KY(WO_4)_2$ at low temperatures. Measurements were carried out under pulsed magnetic field, exciting the $Er^{3+}$ ions via upconversion mechanisms by a Ti:sapphire laser with the external magnetic field applied along the crystallographic b axis. The detailed study of the green $^{4}S_3/_2 - ^{4}I_1_5/_2 Er^{3+}$ PL after infrared excitation around 1μm as a function of pressure and external magnetic field reveals the potential applicability of this system as sensor of high magnetic fields, high pressure and low temperature, simultaneously.
Item Type:Article
Copyright:© 2009 Taylor & Francis
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/69656
Official URL:https://doi.org/10.1080/08957950903371716
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