通过光学二维傅里叶变换光谱法探测半导体中的多体相互作用。
Many-body interactions in semiconductors probed by optical two-dimensional fourier transform spectroscopy.
作者信息
Li Xiaoqin, Zhang Tianhao, Borca Camelia N, Cundiff Steven T
机构信息
JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA.
出版信息
Phys Rev Lett. 2006 Feb 10;96(5):057406. doi: 10.1103/PhysRevLett.96.057406. Epub 2006 Feb 7.
We study many-body interactions between excitons in semiconductors by applying the powerful technique of optical two-dimensional Fourier transform spectroscopy. A two-dimensional spectrum correlates the phase (frequency) evolution of the nonlinear polarization field during the initial evolution and the final detection period. A single two-dimensional spectrum can identify couplings between resonances, separate quantum mechanical pathways, and distinguish among microscopic many-body interactions.
我们通过应用光学二维傅里叶变换光谱这一强大技术，研究半导体中激子之间的多体相互作用。二维光谱关联了非线性极化场在初始演化和最终探测阶段的相位（频率）演化。单个二维光谱能够识别共振之间的耦合、分离量子力学路径，并区分微观多体相互作用。
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