Many-body interactions in semiconductors probed by optical two-dimensional fourier transform spectroscopy.
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.
JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA.
Xiaoqin
X
Li
Tianhao
T
Zhang
Camelia N
CN
Borca
Steven T
ST
Cundiff