Investigation of electronic coupling in semiconductor double quantum wells using coherent optical two-dimensional Fourier transform spectroscopy
作者： Xiaoqin Li , Tianhao Zhang , Shaul Mukamel , Richard P. Mirin , Steven T. Cundiff
DOI: 10.1016/J.SSC.2008.12.021
关键词: Condensed matter physics 、 Semiconductor 、 Oscillation 、 Fourier transform spectroscopy 、 Coherence (physics) 、 Molecular physics 、 Fourier transform 、 Spectroscopy 、 Raman spectroscopy 、 Four-wave mixing 、 Chemistry 、 Materials Chemistry 、 General chemistry
摘要: We investigate electronic coupling in asymmetric semiconductor double quantum wells using a new spectroscopy method, optical two-dimensional Fourier transform (2D-FT) spectroscopy. Measurements on two samples with different barrier thicknesses show drastically 2D-FT spectra. compare these measurements to conventional one-dimensional four-wave-mixing measurements, highlighting the unique advantages of An oscillatory behavior intensity cross peaks as function mixing time is observed. This oscillation attributed interference between mechanical pathways, and its features are determined by non-radiative Raman coherence dipole-forbidden states.
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