59 citations · 142 across the 8 of their papers we have counts for
7 papers
Symmetry and optical selection rules in graphene quantum dots
Rico Pohle, Eleftheria G. Kavousanaki, Keshav M. Dani +1
Graphene quantum dots (GQD's) have optical properties which are very different from those of an extended graphene sheet. In this Article we explore how the size, shape and edge--st…
Quantum limit for nuclear spin polarization in semiconductor quantum dots
Julia Hildmann, Eleftheria Kavousanaki, Guido Burkard +1
A recent experiment [E. A. Chekhovich et al., Phys. Rev. Lett. 104, 066804 (2010)] has demonstrated that high nuclear spin polarization can be achieved in self-assembled quantum do…
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…
Theory of ultrafast exciton dynamics in the Quantum Hall system
I. E. Perakis, E. G. Kavousanaki
We discuss a theory of the ultrafast non-linear optical response of excitons in the Quantum Hall system. Our theory focusses on the role of the low energy collective electronic exc…