Optical injection and terahertz detection of the macroscopic Berry curvature.
Optical injection and terahertz detection of the macroscopic Berry curvature.
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宏观贝里曲率的光学注入和太赫兹检测。
DOI:
10.1103/physrevlett.107.120403
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发表时间:
2011
影响因子:
8.6
通讯作者:
J. Sipe
中科院分区:
文献类型:
--
作者:
K. Virk;J. Sipe
We propose an experimental scheme to probe the Berry curvature of solids. Our method is sensitive to arbitrary regions of the Brillouin zone and employs only basic optical and terahertz techniques to yield a background-free signal. Using semiconductor quantum wells as a prototypical system, we discuss how to inject Berry curvature macroscopically and probe it in a way that provides information about the underlying microscopic Berry curvature.