783 citations · 9.5k across the 70 of their papers we have counts for
7 papers · 1 filter
Broadband terahertz generation from metamaterials
Liang Luo, Ioannis Chatzakis, Jigang Wang +4
The terahertz spectral regime, ranging from about 0.1 to 15 THz, is one of the least explored yet most technologically transformative spectral regions. One current challenge is to…
Repulsive Casimir forces with finite-thickness slabs
R. Zhao, Th. Koschny, E. N. Economou +1
We use the extended Lifshitz theory to study the behaviors of the Casimir forces between finite-thickness effective medium slabs. We first study the interaction between a semi-infi…
Comparison of Chiral Metamaterial Designs for Repulsive Casimir Force
R. Zhao, Th. Koschny, E. N. Economou +1
In our previous work [Phys. Rev. Lett. 103, 103602 (2009)], we found that repulsive Casimir forces could be realized by using chiral metamaterials if the chirality is strong enough…
Levitation of the quantum Hall extended states in the 0 limit
Th. Koschny, L. Schweitzer
We investigate the fate of the quantum Hall extended states within a continuum model with spatially correlated disorder potentials. The model can be projected onto a couple of the…
Levitation of quantum Hall critical states in a lattice model with spatially correlated disorder
Th. Koschny, L. Schweitzer
The fate of the current carrying states of a quantum Hall system is considered in the situation when the disorder strength is increased and the transition from the quantum Hall liq…
Influence of Correlated Disorder Potentials on the Levitation of Current Carrying States in the Quantum Hall Effect
Th. Koschny, L. Schweitzer
The disorder driven quantum Hall to insulator transition is investigated for a two-dimensional lattice system. We consider a Gaussian correlated random potential, study the behavio…
Path Integral for Composite Fermions in the Half-Filled Lowest Landau Level
W. Weller, J. Dietel, Th. Koschny +1
We consider electrons in two dimensions in a strong magnetic field at half filling of the lowest Landau level using the Chern-Simons approach. Starting from a lattice Hamiltonian f…