Adiabatic rapid passage on a single exciton

Wu, Yanwen; Piper, I. M.; Ediger, M.; Brereton, Peter; Schmidgall, E. R.; Phillips, R. T.; Eastham, P. R.; Hugues, Maxime; Hopkinson, M.

doi:10.1063/1.3666468

Cited by 31 publications

(48 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of coherent optical control strategies use detuned, 20 or chirped laser pulses. 21,22 In particular, coherent optical control schemes for a carrier spin usually rely on using detuned laser pulses to minimize the creation of the trion state (see, for example, Refs. 23 and 24).…”

Section: Influence Of Detuningmentioning

confidence: 99%

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

Ramsay

Godden

Boyle

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity damped Rabi rotations in the case of detuned laser pulses. The results have implications for the coherent optical control of both excitons and spins using detuned laser pulses.

show abstract

Section: Influence Of Detuningmentioning

confidence: 99%

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

Ramsay

Godden

Boyle

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…stable population inversion has been experimentally demonstrated using a linear chirp [196,197] (see Fig. 9 and the experimental points in Fig.…”

Section: Excitation With Chirped Laser Pulsesmentioning

confidence: 99%

The role of phonons for exciton and biexciton generation in an optically driven quantum dot

Reiter

Kuhn

Glässl

et al. 2014

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Abstract. For many applications of semiconductor quantum dots in quantum technology a well controlled state preparation of the quantum dot states is mandatory. Since quantum dots are embedded in the semiconductor matrix, the interaction with phonons plays often a major role in the preparation process. In this review, we discuss the influence of phonons on three basically different optical excitation schemes which can be used for the preparation of exciton, biexciton, and superposition states: a resonant excitation leading to Rabi rotations in the excitonic system, an excitation with chirped pulses exploiting the effect of adiabatic rapid passage, and an off-resonant excitation giving rise to a phononassisted state preparation. We give an overview over experimental and theoretical results showing the role of the phonons and compare the performance of the schemes for state preparation.

show abstract

“…Experimentally, such a pulse can be created by passing a transform-limited pulse through a Gaussian chirp filter that introduces a quadratic phase α. The chirp filter modifies the pulse length, which becomes τ = (α 2 /τ 2 0 + τ 2 0 ) 1/2 and introduces a chirp rate a = α/(α 2 + τ 4 0 ) [11]. The Hamiltonian of the driven system is given by…”

Section: Non-markovian Quantum Jump For An Explicitly Time-dependmentioning

confidence: 99%

“…However, the final biexciton population obtained via this simple scheme depends strongly on the intensity and duration of the laser pulse and is therefore not robust against experimental parameters. To overcome this difficulty, it has recently been proposed to use adiabatic rapid passage (ARP) techniques [6] to obtain a robust control of the final exciton [7][8][9][10][11][12] or biexciton [13][14][15][16] population of isolated QDs at finite temperature.…”

Section: Introductionmentioning

confidence: 99%

Cooperative biexciton generation and destructive interference in coupled quantum dots using adiabatic rapid passage

Renaud

Grozema

2014

Phys. Rev. B

View full text Add to dashboard Cite

We report numerical simulations of biexciton generation in coupled quantum dots (CQDs) placed in a static electric field and excited by a chirped laser pulse. Our simulations explicitly account for exciton-phonon interactions at finite temperature using a non-Markovian quantum jump approach to solve the excitonic dynamics. In the case of noninteracting quantum dots, the biexciton generation is severely limited by the biexciton binding energy. We demonstrate that the application of an axial electric field along the CQDs can yield a favorable excitonic level alignment that compensates for the biexciton binding energy and yields an optimum biexciton generation. On the contrary, well-defined values of the electric field lead to destructive quantum interference that completely inhibits the biexciton generation. We therefore demonstrate here the potential of chirped pulse excitations of CQDs for high-efficiency biexciton generation but also for the control of unique optoelectronic properties of complex quantum systems.

show abstract

Adiabatic rapid passage on a single exciton

Cited by 31 publications

References 0 publications

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

The role of phonons for exciton and biexciton generation in an optically driven quantum dot

Cooperative biexciton generation and destructive interference in coupled quantum dots using adiabatic rapid passage

Contact Info

Product

Resources

About