Dependence of the Quenching Pressures of Ruby R-Line Fluorescence on the Wavelengths of the Incident Laser Beams under Ultra-High Pressure
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摘要: 分别使用固态氩和体积比为4∶1的甲醇-乙醇混合溶液做传压介质，测量红宝石在这两种介质中的荧光光谱随压力的变化。首先发现在超高压下红宝石荧光R线的压致猝灭与入射激发线波长以及高压样品室内的静水压程度有关。实验结果表明：入射激发线的波长越长，荧光R线的猝灭压力越低；对同一激发线波长，静水压程度差，猝灭压力高。这一现象归因于红宝石吸收谱中U带和Y带随压力的蓝移。Abstract: The fluorescent spectra of ruby were measured by using solid argon and a 4∶1 methanol-ethanol mixture as pressure-transmitting media, respectively. Experimental results show that under ultra-high pressure the quenching pressures of ruby R-line fluorescence depend not only on the wavelengths of the incident laser beams, but also the degree of hydrostaticity in the chamber as well. The quenching pressure decreases with increasing wavelength and increases with decreasing degree of hydrostaticity. This phenomenon can be explained from the fact that the U and Y bands in the absorption spectrum of ruby shifts with increasing pressure.
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Key words:
- ruby /
- quenching pressure /
- wavelength of laser beam
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Forman R A, Piermariri G J, Barnett J D, et al. Science, 1972, 176: 284. Jayaraman A. Rev Mod Phys, 1983, 55: 65. Jayaraman A. Rev Sci Instrum, 1986, 57: 1013. Mao H K, Goettel K A, Bell P M. Solid State Physics under Pressure. Ed by Minomura A, 1985: 11. 刘振先, 崔启良, 邹广田. 高压物理学报, 1989, 3: 284. Mao H K, Bell P M. Carnegie Inst Washington Yearh, 1978, 77: 904. Mao H K, Bell P M, Shaner J W, et al. J Appl Phys, 1978, 49: 3276. Mao H K, Xu J, Bell P M. J Geophys Res, 1986, 91: 4673. Finger L W, Hazen R M. J Appl Phys, 1978, 49: 5823. McClure D S. J Chem Phys, 1962, 36: 2757. Govinda. Phys Stat Sol A, 1976, 37: 111. Stephens D R, Drickamer H G. J Chem Phys, 1961, 35: 427. Goto T, Ahrens T J, Rossan G R. Phys Chem Miner, 1979, 4: 253. -
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