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采用积分球测试系统配以内芯直径为400μm的功率光纤连接的CCD探测器,在紫色发光二极管的激发下,对Sm3+掺杂的重金属硅酸盐(CAS)玻璃的荧光光谱进行了表征,实现了以荧光发射特性绝对评价为目的绝对光谱功率分布测定,进一步求得了辐射通量,光通量等荧光特征参数。测试与计算结果表明,在整个可见光谱区域,总的辐射通量和光通量分别为712μW和12.1 mlm,其中Sm3+的4个特征发射峰的辐射通量和光通量分别为36μW和9.7 mlm,占可见区总量的5%和80%,其可见特征发射的总量子产率为2.3%。Sm3+掺杂CAS玻璃可见区多通道辐射跃迁的绝对光谱参数评估为照明和显示器件的研发提供了有益的参考依据。
The fluorescence spectra of Sm3 + -doped heavy metal silicate (CAS) glass were characterized by integrating sphere test system and power fiber with a core diameter of 400μm under the excitation of a purple light emitting diode The absolute spectral power distribution for the purpose of absolute determination of the fluorescence emission characteristics was determined, and the fluorescence characteristic parameters such as the radiation flux and the luminous flux were further obtained. The results of testing and calculation show that the total radiant flux and luminous flux are 712μW and 12.1 mlm respectively in the whole visible spectrum region. The radiant flux and luminous flux of the four characteristic emission peaks of Sm3 + are 36μW and 9.7 mlm respectively, accounting for the visible region 5% and 80% of the total amount, which shows that the total quantum yield of the characteristic emission is 2.3%. The evaluation of absolute spectral parameters of multi-channel radiation transition in the visible region of Sm3 + doped CAS glass provides a useful reference for the research and development of lighting and display devices.