Measurement of exciton correlations using electrostatic lattices
arXiv:1508.04407 · doi:10.1103/PhysRevB.92.115311
Abstract
We present a method for determining correlations in a gas of indirect excitons in a semiconductor quantum well structure. The method involves subjecting the excitons to a periodic electrostatic potential that causes modulations of the exciton density and photoluminescence (PL). Experimentally measured amplitudes of energy and intensity modulations of exciton PL serve as an input to a theoretical estimate of the exciton correlation parameter and temperature. We also present a proof-of-principle demonstration of the method for determining the correlation parameter and discuss how its accuracy can be improved.
10 pages, 11 figures
References in corpus (15)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Polariton laser using single micropillar GaAs-GaAlAs semiconductor cavities
- Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
- Two-dimensional Mott-Hubbard electrons in an artificial honeycomb lattice
- Analysis of the exciton-exciton interaction in semiconductor quantum wells
- Drift mobility of long-living excitons in coupled GaAs quantum wells
- Trapping of Cold Excitons with Laser Light
- Coherence Length of Cold Exciton Gases in Coupled Quantum Wells
- Localization-Delocalization Transition of Indirect Excitons in Lateral Electrostatic Lattices
- Excitons and biexcitons in symmetric electron-hole bilayers
- Determination of the Equation of State of a Two-Component Fermi Gas at Unitarity
- Transport of dipolar excitons in (Al,Ga)N/GaN quantum wells
- Pattern Formation in the Exciton Inner Ring
- Effect of spatial resolution on the estimates of the coherence length of excitons in quantum wells
- Transport of indirect excitons in ZnO quantum wells
Cited by in corpus (12)
- Room-temperature transport of indirect excitons in (Al,Ga)N/GaN quantum wells
- Theory of condensation of indirect excitons in a trap
- Attractive and repulsive dipolar interaction in bilayers of indirect excitons
- High-mobility indirect excitons in wide single quantum well
- Split-gate device for indirect excitons
- Anisotropic superfluidity of two-dimensional excitons in a periodic potential
- Microscopic theory of polariton-polariton interactions
- Transition from spin-orbit to hyperfine dominated spin relaxation in a cold fluid of dipolar excitons
- Condensation to a strongly correlated dark fluid of two dimensional dipolar excitons
- Exciton gas transport through nano-constrictions
- Direct and indirect exciton mixture in double quantum wells
- Dipolar excitons offer a rich playground for both design of novel optoelectronic devices and fundamental many-body physics