【摘 要】
：
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 in-dicate the reduction of Eu3 to Eu2
【机 构】
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KeyLaboratoryofPhoto-electronicMaterials,NingboUniversity,Ningbo315211,ChinaCollegeofPhysicsandElect
【出 处】
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OptoelectronicsLetters
论文部分内容阅读
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 in-dicate 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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