In this work we present an extensive experimental and theoretical investigation of different regimes of strong field light–matter interaction for cavity-driven quantum dot (QD) cavity systems. The electric field enhancement inside a high-Q micropillar cavity facilitates exceptionally strong interaction with few cavity photons, enabling the simultaneous investigation for a wide range of QD-laser detuning. In case of a resonant drive, the formation of dressed states and a Mollow triplet sideband splitting of up to 45 μ eV is measured for a mean cavity photon number ##IMG## http://ej.iop.org/images/1367-2630/18/12/123031/njpaa5198ieqn2.gif $n_c1$ . In the asymptotic limit of the linear AC Stark effect we systematically investigate the power and detuning dependence of more than 400 QDs. Some QD-cavity systems exhibit an unexpected anomalous Stark shift, which can be explained by an extended dressed 4-level QD model. We provide a detailed analysis of the QD-cavity systems properties enabling this novel effect. The experimental results are successfully reproduced using a polaron master equation approach for the QD-cavity system, which includes the driving laser field, exciton-cavity and exciton-phonon interactions.
%0 Journal Article
%1 hargart2016probing
%A Hargart, F
%A Roy-Choudhury, K
%A John, T
%A Portalupi, S L
%A Schneider, C
%A Höfling, S
%A Kamp, M
%A Hughes, S
%A Michler, P
%D 2016
%J New Journal of Physics
%K 2017 access fonds oa open stuttgart uni
%N 12
%P 123031
%T Probing different regimes of strong field light–matter interaction with semiconductor quantum dots and few cavity photons
%U http://stacks.iop.org/1367-2630/18/i=12/a=123031
%V 18
%X In this work we present an extensive experimental and theoretical investigation of different regimes of strong field light–matter interaction for cavity-driven quantum dot (QD) cavity systems. The electric field enhancement inside a high-Q micropillar cavity facilitates exceptionally strong interaction with few cavity photons, enabling the simultaneous investigation for a wide range of QD-laser detuning. In case of a resonant drive, the formation of dressed states and a Mollow triplet sideband splitting of up to 45 μ eV is measured for a mean cavity photon number ##IMG## http://ej.iop.org/images/1367-2630/18/12/123031/njpaa5198ieqn2.gif $n_c1$ . In the asymptotic limit of the linear AC Stark effect we systematically investigate the power and detuning dependence of more than 400 QDs. Some QD-cavity systems exhibit an unexpected anomalous Stark shift, which can be explained by an extended dressed 4-level QD model. We provide a detailed analysis of the QD-cavity systems properties enabling this novel effect. The experimental results are successfully reproduced using a polaron master equation approach for the QD-cavity system, which includes the driving laser field, exciton-cavity and exciton-phonon interactions.
@article{hargart2016probing,
abstract = {In this work we present an extensive experimental and theoretical investigation of different regimes of strong field light–matter interaction for cavity-driven quantum dot (QD) cavity systems. The electric field enhancement inside a high-Q micropillar cavity facilitates exceptionally strong interaction with few cavity photons, enabling the simultaneous investigation for a wide range of QD-laser detuning. In case of a resonant drive, the formation of dressed states and a Mollow triplet sideband splitting of up to 45 μ eV is measured for a mean cavity photon number ##IMG## [http://ej.iop.org/images/1367-2630/18/12/123031/njpaa5198ieqn2.gif] {$\langle {n}_{c}\rangle \leqslant 1$} . In the asymptotic limit of the linear AC Stark effect we systematically investigate the power and detuning dependence of more than 400 QDs. Some QD-cavity systems exhibit an unexpected anomalous Stark shift, which can be explained by an extended dressed 4-level QD model. We provide a detailed analysis of the QD-cavity systems properties enabling this novel effect. The experimental results are successfully reproduced using a polaron master equation approach for the QD-cavity system, which includes the driving laser field, exciton-cavity and exciton-phonon interactions.},
added-at = {2018-04-22T15:25:12.000+0200},
author = {Hargart, F and Roy-Choudhury, K and John, T and Portalupi, S L and Schneider, C and Höfling, S and Kamp, M and Hughes, S and Michler, P},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/28e6bd389cdba9078a65656081a593377/droessler},
interhash = {1799fc57c96815c6b8a19c2403a06d0d},
intrahash = {8e6bd389cdba9078a65656081a593377},
journal = {New Journal of Physics},
keywords = {2017 access fonds oa open stuttgart uni},
number = 12,
pages = 123031,
timestamp = {2018-04-22T13:25:12.000+0200},
title = {Probing different regimes of strong field light–matter interaction with semiconductor quantum dots and few cavity photons},
url = {http://stacks.iop.org/1367-2630/18/i=12/a=123031},
volume = 18,
year = 2016
}