The Raman scattering shifted to low wave number direction helped to increase the transition probability of photon-generated electrons and improved photoefficiency.
并且拉曼散射光谱向低波数方向移动，有助于增加光致电子的跃迁几率，提高多相光催化过程的本征量子效率。
2
Being influenced by the quantum effect, Raman spectrum of the sheet-shape nanometer silicon powder was found to be red shifted.
由于量子限制效应的影响，所制得的片状纳米硅的拉曼光谱发生了红移。
3
Presently, an all-solid-state laser in this spectral range was obtained by frequency conversion, such as frequency-doubling, sum frequency, stimulated or Raman frequency-shifted.