Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method

doi:https://doi.org/10.1007/s11801-019-8100-y

Archive > Volume 15 Issue 1 > 2019,15(1):26-30. DOI:https://doi.org/10.1007/s11801-019-8100-y CSTR:[cstr] Prev Next

Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method

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Abstract:

High-quality KMgF3 single crystal containing 0.5 mol% europium (Eu) was prepared by an improved Bridgman method. X-ray diffraction (XRD), photoluminescence spectra and fluorescence lifetime were measured. The results indicate the reduction of Eu3+ to Eu2+ in the KMgF3 single crystal. Under the excitation of 259 nm, 370 nm and 394 nm, the sample has two distinct emissions of Eu2+:4f7→4f7(~363 nm) and 4f65d1→4f7 (~440 nm). The substitution site for Eu ion is confirmed. The optical property investigation result shows that the Eu2+ doped KMgF3 single crystal may be used as potential laser media and related materials for optical devices.

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SHI Xu-dong, XIA Hai-ping, HU Jian-xu, ZHANG Jian-li, ZHU Yong-sheng, CHEN Bao-jiu. Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method[J]. Optoelectronics Letters,2019,15(1):26-30