MASER OSCILLATIONS AT 0.9 AND 1.35 MICRONS IN CaWO$sub 4$: Nd$sup 3$$sup +$
MASER OSCILLATIONS AT 0.9 AND 1.35 MICRONS IN CaWO$sub 4$: Nd$sup 3$$sup +$
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CaWO$sub 4$ 中 0.9 和 1.35 微米的微波激射振荡：Nd$sup 3$$sup $
DOI：
10.1103/physrev.131.2038
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发表时间：
1963
期刊：
影响因子：
--
通讯作者：
R. A. Thomas
中科院分区：
文献类型：
--
作者：
L. Johnson;R. A. Thomas
以前的报告描述了光学脉泽振荡\ensuremath{\sim} 1.06 \ensuremath{\mu}从${\mathrm{Nd}}^{3+}$在CaW ${\mathrm{O}}_{4}$。振荡发生在$^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{11}{2}}$跃迁中，终端态位于基态之上\ensuremath{\sim} 2000 ${\mathrm{cm}}^{\ensuremath{-}1}$。本笔记报告了$^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{13}{2}}$跃迁中的脉泽振荡，终端状态位于基态之上\ensuremath{\sim} 4000 ${\mathrm{cm}}^{\ensuremath{-}1}$，以及$^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{9}{2}}$跃迁中的终端状态位于基态之上471 ${\mathrm{cm}}^{\ensuremath{-}1}$。在$^{4}I$多态之间的跃迁中，试图在\ensuremath{\sim} 5 \ensuremath{\mu}处获得脉泽振荡是不成功的。结论是，这些跃迁主要是非辐射的。
Previous reports have described optical maser oscillation at \ensuremath{\sim}1.06\ensuremath{\mu} from ${\mathrm{Nd}}^{3+}$ in CaW${\mathrm{O}}_{4}$. Oscillation occurs in $^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{11}{2}}$ transitions, the terminal state lying \ensuremath{\sim}2000 ${\mathrm{cm}}^{\ensuremath{-}1}$ above the ground state. The present note reports maser oscillation in $^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{13}{2}}$ transitions, the terminal states lying \ensuremath{\sim}4000 ${\mathrm{cm}}^{\ensuremath{-}1}$ above the ground state, and in $^{4}F_{\frac{3}{2}}\ensuremath{\rightarrow}^{4}I_{\frac{9}{2}}$ transitions, the terminal state lying 471 ${\mathrm{cm}}^{\ensuremath{-}1}$ above the ground state. Attempts to obtain maser oscillation at \ensuremath{\sim}5\ensuremath{\mu} in transitions between $^{4}I$ multiplets were unsuccessful. It is concluded that these transitions are predominantly nonradiative.