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microsensor

木虫 (小有名气)

[交流] 初次求助,翻译一句话(材料物理类),谢谢

在理想完美的固体中,声子的传播形式是不衰减的平面波,即声子的相关长度不受制约,表现为拉曼散射中的动量守恒情况,只有在布里渊区中心的声子才能被激,对于单晶硅在室温下第一阶拉曼峰位于 525cm-1,其半高宽约为2.25cm-1,二阶散射峰在970cm-1附近。
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arkingdom

金虫 (正式写手)

★
wypward(金币+1):谢谢参与 2010-09-18 08:56:54
发芽土豆(翻译EPI+1):8 2010-11-16 22:13:54
In an ideal perfect solid, the phonon propagated by an unattenuated plane wave。 that is to say, the phonon correlation length is not restricted,  the performance registers as momentum conservation in the Raman scattering, and the phonon can be excited only in the Brillouin zone center。At room temperature,the first-order Raman peak of  monocrystalline silicon is at 525cm-1,which its half-width is 2.25cm-1, and its second-order one is near 970cm-1

有误之处请指正,别笑话哈
2楼2010-09-17 23:50:03
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