St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Correlations between axial and lateral emission of coupled quantum dot-micropillar cavities

Thumbnail
View/Open
Hoefling_2015_PRB_Correlations_Final_Pub_Version.pdf (676.6Kb)
Date
19/05/2015
Author
Musiał, A.
Hopfmann, C.
Heindel, T.
Gies, C.
Florian, M.
Leymann, H. A. M.
Foerster, A.
Schneider, C.
Jahnke, F.
Höfling, S.
Kamp, M.
Reitzenstein, S.
Keywords
QC Physics
NDAS
Metadata
Show full item record
Altmetrics Handle Statistics
Altmetrics DOI Statistics
Abstract
We report on optical studies of coupled quantum dot–micropillar cavities using a 90∘ excitation-and-detection scheme. This specific configuration allows us to excite the micropillar structures either in the axial direction or in the lateral direction and to simultaneously detect emission from both directions. That enables us to reveal correlations between emission into the cavity mode and the leaky modes in the regime of cavity quantum electrodynamics. In particular, we can access and distinguish between axial cavity emission and lateral emission consisting of emission of quantum dots into the leaky modes and losses due to sidewall scattering, respectively. In the multiemitter regime, this technique provides direct access to the respective loss channels and reveals a strong increase of sidewall losses in the low-diameter regime below about 3.0 μm. Beyond that, in the single-emitter regime, we observe an anticorrelation between quantum dot emission coupled into the cavity mode and into the leaky modes which is controlled by light-matter interaction in the weak coupling regime. This anticorrelation is absent in the strong coupling regime due to the presence of entangled light-matter states. Moreover, excitation-power-dependent studies demonstrate that the intensity ratio between axial and lateral emission increases strongly above the lasing threshold due to enhanced directionality of emission into the lasing mode. In fact, theoretical studies confirm that this intensity ratio is an additional indicator of laser action in high-β microlasers for which the onset of lasing is difficult to identify by the input-output characteristics.
Citation
Musiał , A , Hopfmann , C , Heindel , T , Gies , C , Florian , M , Leymann , H A M , Foerster , A , Schneider , C , Jahnke , F , Höfling , S , Kamp , M & Reitzenstein , S 2015 , ' Correlations between axial and lateral emission of coupled quantum dot-micropillar cavities ' , Physical Review. B, Condensed matter and materials physics , vol. 91 , no. 20 , 205310 , pp. 1-10 . https://doi.org/10.1103/PhysRevB.91.205310
Publication
Physical Review. B, Condensed matter and materials physics
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevB.91.205310
ISSN
1098-0121
Type
Journal article
Rights
©2015 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.1103/PhysRevB.91.205310
Description
The authors acknowledge financial support by the German Research Foundation via Projects No. Ka2318/4-1 and No. Re2974/3-1, the SFB 787 “Semiconductor Nanophotonics: Materials, Models, Devices,” and the State of Bavaria.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8160

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter