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Polariton condensation in a strain-compensated planar microcavity with InGaAs quantum wells

Polariton condensation in a strain-compensated planar microcavity with InGaAs quantum wells
Polariton condensation in a strain-compensated planar microcavity with InGaAs quantum wells
The investigation of intrinsic interactions in polariton condensates is currently limited by the photonic disorder of semiconductor microcavity structures. Here, we use a strain compensated planar GaAs/AlAs0.98P0.02 microcavity with embedded InGaAs quantum wells having a reduced cross-hatch disorder to overcome this issue. Using real and reciprocal space spectroscopic imaging under non-resonant optical excitation, we observe polariton condensation and a second threshold marking the onset of photon lasing, i.e., the transition from the strong to the weak-coupling regime. Condensation in a structure with suppressed photonic disorder is a necessary step towards the implementation of periodic lattices of interacting condensates, providing a platform for on chip quantum simulations.
0003-6951
Cilibrizzi, Pasquale
04ffaefc-4a50-4078-82c8-69926aea29d5
Askitopoulos, Alexis
7ccee4f4-5ea2-408f-beb3-3ff5b281f4e4
Silva, Matteo
a200bb38-2c5f-4c66-9b75-e79bf2685dd7
Bastiman, Faebian
8fbaa154-2226-42be-89a9-bb30dbff3d93
Clarke, Edmund
cae7355d-ba0a-4a5f-afc5-f5135863c6f5
Zajac, Joanna M.
94f02ec4-bf88-4b46-b7d8-be52a9998817
Langbein, Wolfgang
6ee2fdee-4357-44ba-a063-d2822d9018cc
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Cilibrizzi, Pasquale
04ffaefc-4a50-4078-82c8-69926aea29d5
Askitopoulos, Alexis
7ccee4f4-5ea2-408f-beb3-3ff5b281f4e4
Silva, Matteo
a200bb38-2c5f-4c66-9b75-e79bf2685dd7
Bastiman, Faebian
8fbaa154-2226-42be-89a9-bb30dbff3d93
Clarke, Edmund
cae7355d-ba0a-4a5f-afc5-f5135863c6f5
Zajac, Joanna M.
94f02ec4-bf88-4b46-b7d8-be52a9998817
Langbein, Wolfgang
6ee2fdee-4357-44ba-a063-d2822d9018cc
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf

Cilibrizzi, Pasquale, Askitopoulos, Alexis, Silva, Matteo, Bastiman, Faebian, Clarke, Edmund, Zajac, Joanna M., Langbein, Wolfgang and Lagoudakis, Pavlos G. (2014) Polariton condensation in a strain-compensated planar microcavity with InGaAs quantum wells. Applied Physics Letters, 105 (19), [191118]. (doi:10.1063/1.4901814).

Record type: Article

Abstract

The investigation of intrinsic interactions in polariton condensates is currently limited by the photonic disorder of semiconductor microcavity structures. Here, we use a strain compensated planar GaAs/AlAs0.98P0.02 microcavity with embedded InGaAs quantum wells having a reduced cross-hatch disorder to overcome this issue. Using real and reciprocal space spectroscopic imaging under non-resonant optical excitation, we observe polariton condensation and a second threshold marking the onset of photon lasing, i.e., the transition from the strong to the weak-coupling regime. Condensation in a structure with suppressed photonic disorder is a necessary step towards the implementation of periodic lattices of interacting condensates, providing a platform for on chip quantum simulations.

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More information

Accepted/In Press date: 23 October 2014
e-pub ahead of print date: 14 November 2014

Identifiers

Local EPrints ID: 430560
URI: http://eprints.soton.ac.uk/id/eprint/430560
ISSN: 0003-6951
PURE UUID: cbded38e-0590-4454-ae4f-32fa2c0d9cc5

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Date deposited: 03 May 2019 16:30
Last modified: 03 May 2019 16:30

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