Er^(3+)-doped and Yb^(3+)/Er^(3+) co-doped Gd_(3)Sc_(2)Ga_(3)O_(12) (abbreviated as Er:GSGG and Yb,Er:GSGG,respectively)laser crystals are investigated by using a combination of spectroscopic measurements and thermal ...Er^(3+)-doped and Yb^(3+)/Er^(3+) co-doped Gd_(3)Sc_(2)Ga_(3)O_(12) (abbreviated as Er:GSGG and Yb,Er:GSGG,respectively)laser crystals are investigated by using a combination of spectroscopic measurements and thermal characterizations.An absorption peak of Yb,Er:GSGG crystal shifts to 970nm and its absorption band broadens obviously,which makes the crystal suitable for pumping by a 970nm laser diode (LD).This crystal also exhibits a shorter lifetime of a lower laser level,a larger emission cross section and higher thermal conductivity than those of Er:GSGG.All these factors suggest that Yb^(3+)/Er^(3+) co-doping has a positive effect on improving the spectroscopic and thermal performances in GSGG based laser crystals,and imply that double-doped Yb,Er:GSGG crystal is a potential candidate as an excellent LD pumped 2.79 μm laser material.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 10401004. Professor F. Lu and Dr. Q. J. Cai are gratefully acknowledged for the dielectric measurements. The authors also thank Professor H. Luo at Shanghai Institute of Ceramics （CAS） for providing us with part of the samples.
基金Supported by the Knowledge Innovation Project of Chinese Academy of Sciences, and the National Natural Science Foundation of China under Grant No 50772112. To whom correspondence should be addressed.
文摘我们在吸收和Nd3+的荧光灯的系列上调查gamma光线照耀的影响: Y ( 3 ) A ( 15 ) O ( 12 )( Nd :钇铝柘榴石)并且Yb3+: Y ( 3 ) A ( l5 ) O ( 12 )( Yb :钇铝柘榴石)旁边种的晶体 Czochralski 方法。gamma 光线照耀劝诱的二个另外的吸收(AA ) 乐队出现在 255 nm 和 340 nm。前者由于 Fe3+ 杂质被贡献，后者由于 Fe2+ 离子和 F 类型颜色中心。象 Nd 的荧光灯的一生一样的刺激和排放系列的紧张: 在 100 Mrad gamma 光线的照耀以后的钇铝柘榴石水晶减少。相反，一样的剂量照耀不损害 Yb 的荧光灯的性质: 钇铝柘榴石水晶。这些结果显示那 Yb : 钇铝柘榴石水晶在 Nd 上拥有优点: 在严厉绚烂的环境为应用有更好的可靠性的钇铝柘榴石水晶。
基金Supported by the National Natural Science Foundation of China under Grant Nos 91122021,90922003,50932005,61008021 and 10804068。
文摘Er^(3+)-doped and Yb^(3+)/Er^(3+) co-doped Gd_(3)Sc_(2)Ga_(3)O_(12) (abbreviated as Er:GSGG and Yb,Er:GSGG,respectively)laser crystals are investigated by using a combination of spectroscopic measurements and thermal characterizations.An absorption peak of Yb,Er:GSGG crystal shifts to 970nm and its absorption band broadens obviously,which makes the crystal suitable for pumping by a 970nm laser diode (LD).This crystal also exhibits a shorter lifetime of a lower laser level,a larger emission cross section and higher thermal conductivity than those of Er:GSGG.All these factors suggest that Yb^(3+)/Er^(3+) co-doping has a positive effect on improving the spectroscopic and thermal performances in GSGG based laser crystals,and imply that double-doped Yb,Er:GSGG crystal is a potential candidate as an excellent LD pumped 2.79 μm laser material.
