Raman Spectra of Quartz and Pb4+-Doped SiO2 Crystals at Different Temperature and Pressure
Keyword(s):
In order to seek for new Raman crystals, the manuscript presented the discussion on the Raman frequency of α-quartz, β-quartz, as well as Pb4+-doped SiO2 crystals at different temperature and pressure. The results demonstrated that as the pressure increased, the Raman lines shifted towards higher frequency for α-SiO2 crystal, while for β-SiO2 crystals, the main lines moved to lower frequency. Several new peaks were generated from the Pb4+-doped α-SiO2 crystals. The Pb4+-doped β-SiO2 crystals presented strong and ample Raman beams in the low-frequency range. The airfoil-shaped spectra appeared and broadened at high temperature and pressure. It could be inferred that the Pb4+-doped SiO2 crystals were excellent Raman crystal candidates.
Keyword(s):
1938 ◽
Vol 19
(1)
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pp. 271
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1999 ◽
Vol 122
(1)
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pp. 22-26
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2011 ◽
Vol 15
(2)
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pp. 139-144
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