129 citations · 350 across the 11 of their papers we have counts for
10 papers
Optically induced softening of the charge-transfer gap in Sr2CuO2Cl2
J. S. Dodge, A. B. Schumacher, L. L. Miller +1
Energy- and time-resolved spectroscopy reveals a photoinduced softening of the charge-transfer gap in the insulating copper oxide Sr2CuO2Cl2 that indicates rapid and efficient phot…
Observation of inter-Landau-level quantum coherence in semiconductor quantum wells
K. M. Dani, I. A. Cotoros, J. Wang +4
Using three-pulse four-wave-mixing femtosecond spectroscopy, we excite a non-radiative coherence between the discrete Landau levels of an undoped quantum well and study its dynamic…
Nonlinear Optical studies of the Transient Coherence in the Quantum Hall System
K. M. Dani, E. G. Kavousanaki, J. Tignon +2
We review recent investigations of the femtosecond non-linear optical response of the two-dimensional electron gas (2DEG) in a strong magnetic field. We probe the Quantum Hall (QH)…
Ultrafast dynamics of coherences in the quantum Hall system
K. M. Dani, J. Tignon, M. Breit +3
Using three-pulse four-wave-mixing optical spectroscopy, we study the ultrafast dynamics of the quantum Hall system. We observe striking differences as compared to an undoped syste…
Broadband THz study of excitonic resonances in the high-density regime
Rupert Huber, Robert A. Kaindl, Ben A. Schmid +1
We report the first terahertz study of the intra-excitonic 1s-2p transition at high excitation densities in GaAs/AlGaAs quantum wells. A strong shift, broadening, and ultimately th…
Charge transport and phase transition in exciton rings
L. V. Butov, L. S. Levitov, A. V. Mintsev +3
The macroscopic exciton rings observed in the photoluminescence (PL) patterns of excitons in coupled quantum wells (CQWs) are explained by a series of experiments and a theory base…