National Changhua University of Education Institutional Repository : Item 987654321/16727
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题名: State Filling, Coulomb, and Trapping Effects in the Optical Nonlinearity of CdTe Quantum Dots in Glass
作者: V. Esch;B. Fluegel;G. Khitrova;H. M. Gibbs;Xu Jiajin;K. Kang;S. W. Koch;Liu, Li‐Chi;S. H. Risbud;N. Peyghambarian
贡献者: 物理學系
日期: 1990-10
上传时间: 2013-06-05T07:45:48Z
出版者: The American Physical Society
摘要: Microcrystallites of CdTe were grown in a special-formula glass, yielding CdTe dots; the linear-absorption spectrum exhibits as many as six quantum-confinement peaks. Excitation of the sample with pulses ranging from femtoseconds to microseconds has allowed us to distinguish between various mechanisms for optical nonlinearity. At very early times, phase-space filling and Coulomb interaction between the excited charged carriers is responsible for the absorption changes, δα. At later times, Coulomb effects due to trapped carriers remain and last for nanoseconds or microseconds.
關聯: Physical Review B, 42(12): 7450-7453
显示于类别:[物理學系] 期刊論文

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