Tianhao Zhang

TL;DR: Several two-dimensional projections are shown and techniques to isolate different contributions to the coherent response of semiconductors are demonstrated, which reveal previously unobserved many-body correlations.

TL;DR: The linewidths of the heavy- hole (HH) and light-hole (LH) excitonic Raman coherence peaks are obtained and insights on the higher-order (beyond time-dependent Hartree-Fock) correlation effects among mixed mixed two excitons can be gained by using a cocircular pulse polarization configuration.

TL;DR: In this paper, the effects of structural disorder is observed as inhomogeneous broadening of the exciton resonances in semiconductor nanostructures, and the authors discuss the use of 2D Fourier transform spectroscopy to study excitonic transitions.

TL;DR: A two-dimensional spectrum correlates the phase (frequency) evolution of the nonlinear polarization field during the initial evolution and the final detection period and can identify couplings between resonances, separate quantum mechanical pathways, and distinguish among microscopic many-body interactions.

TL;DR: In this paper, optical two-dimensional Fourier transform (2D-FT) spectroscopy was used to investigate electronic coupling in asymmetric semiconductor double quantum wells using a new method.