期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 76, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.1931205
关键词
-
We describe the design and operation of a spatially-filtered Raman/fluorescence spectrometer that incorporates a pulsed 532 nm laser excitation source and a synchronized and electronically gated CCD detector. This system permits the suppression of undesired continuous radiation from various sources by a factor of up to 50 000 providing the possibility of acquiring Raman signals at temperatures exceeding 5 000 K. We present performance comparisons of this system with that of a state-of-the-art conventional CW system using a 458 nm excitation source. We also demonstrate that the pulsed system is capable of suppressing an impurity-induced (single nitrogen defects) fluorescence in diamond, and further suggest that this capability can be used to suppress the stress-induced fluorescence in diamond that may appear at pressures near or above 150 GPa. This work suggests that Raman spectroscopy under conditions of very high temperatures (to 5000 K) and/or ultrahigh pressures (to 300 GPa) is entirely viable. (c) 2005 American Institute of Physics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据