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掺Gd3+的LiYF4∶Yb3+/Ho3+微米晶体制备以及在防伪中的应用研究
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王翀1, 王景华1,2, 李冬冬1, 佘江波2 |
Preparation of Gd3+-Doped LiYF4∶Yb3+/Ho3+ Micro-Crystal and the Application Research in Anti-Counterfeiting
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WANG Chong 1, WANG Jing-hua 1,2, LI Dong-dong 1, SHE Jiang-bo 2
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(a) 980 nm激光激发功率为0.5~1.5W范围的荧光光谱图; (b) 激发功率为0.5~1.5 W时的红色与绿色发光强度之比( R/G=I 630~665 nm/ I 525~560 nm) |
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