This work has been supported by the National Natural Science Foundation of China (No.61108029).
Ni Tian-yi, Li Yong-liang, Zhang Tian-yi, Ruan Ren-qiu. Study on the Pr:KYF ultraviolet laser at 305 nm pumped by blue laser[J]. Optoelectronics Letters,2012,8(5):325-327
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