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A room-temperature organic polariton transistor

A room-temperature organic polariton transistor
A room-temperature organic polariton transistor
Active optical elements with ever smaller footprint and lower energy consumption are central to modern photonics. The drive for miniaturization, speed and efficiency, with the concomitant volume reduction of the optically active area, has led to the development of devices that harness strong light–matter interactions. By managing the strength of light–matter coupling to exceed losses, quasiparticles, called exciton-polaritons, are formed that combine the properties of the optical fields with the electronic excitations of the active material. By making use of polaritons in inorganic semiconductor microcavities, all-optical transistor functionality was observed, albeit at cryogenic temperatures1. Here, we replace inorganic semiconductors with a ladder-type polymer in an optical microcavity and realize room-temperature operation of a polariton transistor through vibron-mediated stimulated polariton relaxation. We demonstrate net gain of ~10 dB μm−1, sub-picosecond switching time, cascaded amplification and all-optical logic operation at ambient conditions.
1749-4885
378–383
Zasedatelev, Anton
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Baranikov, Anton
ca9fb292-7df0-4b5b-8746-723a00921a24
Urbonas, Darius
a43479a7-c3c8-49a5-92a6-7a88118e25c5
Scafirimuto, Fabio
506be0c3-a5ad-40d9-aab1-f7f8c28cccb2
Scherf, Ullrich
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Stöferle, Thilo
ae851565-5fa0-42b9-afb2-ee458a7f757f
Mahrt, Rainer
7135d146-9663-474d-a46e-d2840fefed8e
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Zasedatelev, Anton
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Baranikov, Anton
ca9fb292-7df0-4b5b-8746-723a00921a24
Urbonas, Darius
a43479a7-c3c8-49a5-92a6-7a88118e25c5
Scafirimuto, Fabio
506be0c3-a5ad-40d9-aab1-f7f8c28cccb2
Scherf, Ullrich
917142be-4e69-4b01-97a7-acaef0b040c8
Stöferle, Thilo
ae851565-5fa0-42b9-afb2-ee458a7f757f
Mahrt, Rainer
7135d146-9663-474d-a46e-d2840fefed8e
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf

Zasedatelev, Anton, Baranikov, Anton, Urbonas, Darius, Scafirimuto, Fabio, Scherf, Ullrich, Stöferle, Thilo, Mahrt, Rainer and Lagoudakis, Pavlos (2019) A room-temperature organic polariton transistor. Nature Photonics, 13, 378–383. (doi:10.1038/s41566-019-0392-8).

Record type: Article

Abstract

Active optical elements with ever smaller footprint and lower energy consumption are central to modern photonics. The drive for miniaturization, speed and efficiency, with the concomitant volume reduction of the optically active area, has led to the development of devices that harness strong light–matter interactions. By managing the strength of light–matter coupling to exceed losses, quasiparticles, called exciton-polaritons, are formed that combine the properties of the optical fields with the electronic excitations of the active material. By making use of polaritons in inorganic semiconductor microcavities, all-optical transistor functionality was observed, albeit at cryogenic temperatures1. Here, we replace inorganic semiconductors with a ladder-type polymer in an optical microcavity and realize room-temperature operation of a polariton transistor through vibron-mediated stimulated polariton relaxation. We demonstrate net gain of ~10 dB μm−1, sub-picosecond switching time, cascaded amplification and all-optical logic operation at ambient conditions.

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Accepted/In Press date: 16 February 2019
e-pub ahead of print date: 25 March 2019
Published date: June 2019

Identifiers

Local EPrints ID: 429885
URI: http://eprints.soton.ac.uk/id/eprint/429885
ISSN: 1749-4885
PURE UUID: f4c2f079-09b3-4e05-a138-90caec7d7866
ORCID for Anton Zasedatelev: ORCID iD orcid.org/0000-0003-0414-5779

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Date deposited: 08 Apr 2019 16:30
Last modified: 04 Mar 2020 01:44

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Contributors

Author: Anton Baranikov
Author: Darius Urbonas
Author: Fabio Scafirimuto
Author: Ullrich Scherf
Author: Thilo Stöferle
Author: Rainer Mahrt

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