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测量了单层纳米碳管的一级、二级拉曼光谱．在４０—３３００ｃｍ－１范围内观测到１８条一级拉曼谱线和７条二级拉曼谱线，理论所预言的谱线几乎全被观测到，谱峰位置和理论值符合得很好．通过和理论值的对照，对这些谱线作了初步标定．所观测到的单层纳米碳管的拉曼激活振动模数目及二级拉曼谱线条数都是迄今最多的
The primary and secondary Raman spectra of single-walled carbon nanotubes were measured. In the range of 40-3300 cm-1, 18 first-order Raman spectra and seven second-order Raman spectra were observed. The theoretical predicted spectra were observed almost completely and the peak position was in good agreement with the theoretical value . By comparison with theoretical values, these spectra were initially calibrated. The observed single-walled carbon nanotubes Raman activation mode number and the number of second-order Raman spectrum are by far the most