Anti-Stokes fluorescence of Cr3+ ions doped crystals excited in one-phonon vibronic sidebands
Anti-Stokes fluorescence of Cr3+ ions doped crystals excited in one-phonon vibronic sidebands
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DOI：
10.1016/j.optmat.2019.05.044
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发表时间：
2019-08
影响因子：
3.9
通讯作者：
S. Feofilov;A. Kulinkin
中科院分区：
文献类型：
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作者：
S. Feofilov;A. Kulinkin
研究了在激光激发下零声子4A2-2E跃迁的一声子振动边带内Cr3+离子掺杂绝缘晶体的荧光。在环境温度和液氮温度下观察声子辅助反斯托克斯荧光光谱。光谱结果表明，从在环境温度开始以及显着低于环境温度实现光学制冷的角度来看，杂质离子荧光光谱中零声子线的一声子振动边带是令人感兴趣的。
The fluorescence of Cr3+ions doped insulating crystals was studied under the laser excitation within the one-phonon vibronic sidebands of zero-phonon4A2-2E transitions. The phonon-assisted anti-Stokes fluorescence spectra were observed at ambient and liquid nitrogen temperature. The spectroscopic results suggest that one-phonon vibronic sidebands of zero-phonon lines in impurity ions fluorescence spectra are of interest from the point of view of achieving optical refrigeration starting at ambient temperature as well as significantly below it.