Measurement of exciton correlations using electrostatic lattices

Article

关键词: COUPLED QUANTUM-WELLS;    LOCALIZATION;    GAS;    CONDENSATION;    TRANSPORT;    STATE;    TRANSITION;    SUPERFLUID;    LIFETIMES;    ELECTRONS;   

DOI  :  10.1103/PhysRevB.92.115311

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free