Dephasing of InAs quantum dot p-shell excitons using two-dimensional coherent spectroscopy
arXiv:1808.07527 · doi:10.1103/PhysRevB.98.195304
Abstract
The dephasing mechanisms of p-shell and s-shell excitons in an InAs self-assembled quantum dot ensemble are examined using two-dimensional coherent spectroscopy (2DCS). 2DCS provides a comprehensive picture of how the energy level structure of dots affects the exciton dephasing rates and recombination lifetimes. We find that at low temperatures, dephasing of s-shell excitons is lifetime limited, whereas p-shell excitons exhibit significant pure dephasing due to scattering between degenerate spin states. At elevated temperatures, quadratic exciton-phonon coupling plays an important role in both s-shell and p-shell exciton dephasing. We show that multiple p-shell states are also responsible for stronger phonon dephasing for these transitions
References in corpus (19)
- Theoretical interpretation of the experimental electronic structure of lens shaped, self-assembled InAs/GaAs quantum dots
- Dephasing in Quantum Dots: Quadratic Coupling to Acoustic Phonons
- A Versatile Ultra-Stable Platform for Optical Multidimensional Fourier-Transform Spectroscopy
- Emission from quantum-dot high- microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling
- Dephasing times in quantum dots due to elastic LO phonon-carrier collisions
- Fifth-order nonlinear optical response of excitonic states in an InAs quantum dot ensemble measured with 2D spectroscopy
- Exciton lifetime in InAs/GaAs quantum dot molecules
- Controlling Coherent Quantum Dot Interactions
- LO Phonon-Induced Exciton Dephasing in Quantum Dots: An Exactly Solvable Model
- Correlation and dephasing effects on the non-radiative coherence between bright excitons in an InAs QD ensemble measured with 2D spectroscopy
- Systematic study of carrier correlations in the electron-hole recombination dynamics of quantum dots
- Intersublevel Polaron Dephasing in Self-Assembled Quantum Dots
- Decoherence in quantum dots due to real and virtual transitions: a non-perturbative calculation
- Influence of quantum dot geometry on p-shell transitions in differently charged quantum dots
- Hyperfine interaction mediated exciton spin relaxation in (In,Ga)As quantum dots
- Reconstruction of nuclear quadrupole interaction in (In,Ga)As/GaAs quantum dots observed by transmission electron microscopy
- Nonlinear optical response and exciton dephasing in quantum dots
- Dephasing of InAs quantum dot p-shell excitons using two-dimensional coherent spectroscopy
- Comment on "Dephasing Times in Quantum Dots due to Elastic LO Phonon-Carrier Collisions"
Cited by in corpus (5)
- Non-Markovian features in semiconductor quantum optics: Quantifying the role of phonons in experiment and theory
- Femtosecond Transfer and Manipulation of Persistent Hot-Trion Coherence in a Single CdSe/ZnSe Quantum Dot
- Dark Exciton Preparation in a Quantum Dot by a Longitudinal Light Field Tuned to Higher Exciton States
- Dephasing of InAs quantum dot p-shell excitons using two-dimensional coherent spectroscopy
- On-demand generation of entangled photons pairs in the telecom O-band from nanowire quantum dots