Nonlinear optical spectroscopy of indirect excitons in biased coupled quantum wells
arXiv:1407.5500 · doi:10.1103/PhysRevB.91.125437
Abstract
Indirect excitons in coupled quantum wells are long-living quasi-particles, explored in the studies of collective quantum states. We demonstrate, that despite the extremely low oscillator strength, their spin and population dynamics can by addressed by time-resolved pump-probe spectroscopy. Our experiments make it possible to unravel and compare spin dynamics of direct excitons, indirect excitons and residual free electrons in coupled quantum wells. Measured spin relaxation time of indirect excitons exceeds not only one of direct excitons, but also one of free electrons by two orders of magnitude.
arXiv comment10 pages, 8 figures
References in corpus (22)
- Electron spin relaxation by nuclei in semiconductor quantum dots
- Macroscopically ordered state in exciton system
- Spontaneous Coherence in a Cold Exciton Gas
- Low-temperature spin relaxation in n-type GaAs
- Direct and indirect excitons in semiconductor coupled quantum wells in an applied electric field
- Quantum diffusion of dipole-oriented indirect excitons in coupled quantum wells
- Evidence for a Bose-Einstein condensate of excitons
- Gate-controlled spin-orbit interaction in a parabolic GaAs/AlGaAs quantum well
- Spin Texture in a Cold Exciton Gas
- Localization-Delocalization Transition of Indirect Excitons in Lateral Electrostatic Lattices
- Spin currents in a coherent exciton gas
- Exciton Liquid in Coupled Quantum Wells
- Particle correlations and evidence for dark state condensation in a cold dipolar exciton fluid
- Spin relaxation of localized electrons in n-type semiconductors
- Spin coherence of holes in GaAs/AlGaAs quantum wells
- Spin transport of indirect excitons in GaAs coupled quantum wells
- Spin transport of indirect excitons
- Spin dynamics of electrons and holes in InGaAs/GaAs quantum wells at milliKelvin temperatures
- Interacting many-body systems in quantum wells: Evidence for exciton-trion-electron correlations
- Electric-Field Tuning of Spin-Dependent Exciton-Exciton Interactions in Coupled Quantum Wells
- Nonlinear Optical Probe of Indirect Excitons
- Spin-orbit terms in multi-subband electron systems: A bridge between bulk and two-dimensional Hamiltonians
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- Capacitively-coupled and inductively-coupled excitons in bilayer MoS
- Exact two-body quantum dynamics of an electron-hole pair in semiconductor coupled quantum wells: a time-dependent approach
- Exciton-exciton and exciton-charge carrier interaction and the exciton collisional broadening in GaAs/AlGaAs quantum wells
- Influence of magnetic quantum confined Stark effect on the spin lifetime of indirect excitons
- Transition from spin-orbit to hyperfine dominated spin relaxation in a cold fluid of dipolar excitons
- Classical and quantum dynamics of indirect excitons driven by surface acoustic waves