Directional planar antennae in polariton condensates
Directional planar antennae in polariton condensates
We report on the realization of all-optical planar microlensing for exciton–polariton condensates in semiconductor microcavities. We utilize spatial light modulators to structure a nonresonant pumping beam into a plano–concave lens-shape focused onto the microcavity plane. When pumped above condensation threshold, the system effectively becomes a directional polariton antenna, generating an intense focused beam of coherent polaritons away from the pump region. The effects of pump intensity, which regulates the interplay between gain and blueshift of polaritons, as well as the geometry of the lens-shaped pump are studied, and a strategy to optimize the focusing of the condensate is proposed. Our work underpins the feasibility to guide nonlinear light in microcavities using nonresonant excitation schemes, offering perspectives on optically reprogramable on-chip polariton circuitry.
Aristov, Denis
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Baryshev, Stepan
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Töpfer, Julian D.
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Sigurðsson, Helgi
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Lagoudakis, Pavlos G.
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Aristov, Denis
558c2428-a9b2-4e2a-bf18-cc46be19fdc3
Baryshev, Stepan
1860e30e-ce44-46d5-a210-1c8635e58633
Töpfer, Julian D.
f3e89749-2912-4907-b712-6052b732dfb1
Sigurðsson, Helgi
c6380293-fe97-4fd0-a819-cf35721d4e5d
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Aristov, Denis, Baryshev, Stepan, Töpfer, Julian D., Sigurðsson, Helgi and Lagoudakis, Pavlos G.
(2023)
Directional planar antennae in polariton condensates.
Applied Physics Letters, 123 (12), [121101].
(doi:10.1063/5.0159665).
Abstract
We report on the realization of all-optical planar microlensing for exciton–polariton condensates in semiconductor microcavities. We utilize spatial light modulators to structure a nonresonant pumping beam into a plano–concave lens-shape focused onto the microcavity plane. When pumped above condensation threshold, the system effectively becomes a directional polariton antenna, generating an intense focused beam of coherent polaritons away from the pump region. The effects of pump intensity, which regulates the interplay between gain and blueshift of polaritons, as well as the geometry of the lens-shaped pump are studied, and a strategy to optimize the focusing of the condensate is proposed. Our work underpins the feasibility to guide nonlinear light in microcavities using nonresonant excitation schemes, offering perspectives on optically reprogramable on-chip polariton circuitry.
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2023_APL_Directional_planar_antennae_in_polariton_condensates
- Accepted Manuscript
Text
121101_1_5.0159665
- Version of Record
More information
Accepted/In Press date: 4 August 2023
e-pub ahead of print date: 18 September 2023
Additional Information:
Funding Information: the authors acknowledge the support of the European Union's Horizon 2020 Program, through a FET Open Research and Innovation Action under Grant Agreement Nos. 899141 (PoLLoC) and 964770 (TopoLight). H.S. acknowledges the Icelandic Research Fund (Rannis), Grant No. 239552-051.
Identifiers
Local EPrints ID: 484849
URI: http://eprints.soton.ac.uk/id/eprint/484849
ISSN: 1077-3118
PURE UUID: 741d0b13-446e-47a6-848a-c55a50cbb293
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Date deposited: 23 Nov 2023 17:32
Last modified: 18 Mar 2024 04:07
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Author:
Stepan Baryshev
Author:
Julian D. Töpfer
Author:
Pavlos G. Lagoudakis
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