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铕离子在SiO_2玻璃中的荧光变化

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Abstract:

采用溶胶-凝胶法合成了SiO2Eu3+玻璃,以Eu3+作为荧光探针研究了飞秒激光辐照所诱导的荧光变化。结果表明经飞秒激光辐照后,Eu3+的电荷迁移吸收的相对强度明显降低;辐照后的低温7F0-5D0激发峰发生蓝移,表明飞秒激光辐照诱导Eu3+周围的微观环境发生变化。低温荧光谱线窄化光谱进一步证明飞秒激光辐照诱导了Eu3+周围的微结构发生变化。

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