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Self-phase modulation of a single-cycle terahertz pulse by nonlinear free-carrier response in a semiconductor
Self-phase modulation single-cycle terahertz pulse nonlinear free-carrier response semiconductor
2012/2/24
We demonstrate the self-phase modulation (SPM) of a single-cycle THz pulse in a semiconductor, using bulk n-GaAs as a model system. The SPM arises from the heating of free electrons in the electric fi...
Water distribution at solid/liquid interfaces visualized by frequency modulation atomic force microscopy
Water distribution solid/liquid interfaces visualized frequency modulation atomic force microscopy
2010/10/12
Interfacial phenomena at solid/water interfaces play an important role in a wide range of industrial technologies and biological processes. However, it has been a great challenge to directly probe the...