McGhee, K.E., Jayaprakash, R., Georgiou, K. et al. (2 more authors) (2022) Polariton condensation in a microcavity using a highly-stable molecular dye. Journal of Materials Chemistry C, 10 (11). pp. 4187-4195. ISSN 2050-7526
Abstract
We have fabricated dielectric microcavities containing the molecular dye 1,4-bis[2-[4-[N,N-di(p-tolyl)amino]phenyl]vinyl]benzene (DPAVB) dispersed in a transparent polymer matrix. We show that despite the relatively broad absorption linewidth of the DPAVB, the cavities enter the strong coupling regime. We use <330 ps pulses at 355 nm from a Nd:YAG laser to generate amplified spontaneous emission from control films and polariton condensation from the strongly-coupled microcavity in air and at room temperature. Here, polariton condensation is observed at an excitation threshold of 215 μJ cm−2. Significantly, we show that the DPAVB dye has a very high degree of photostability, with polariton condensation still observed from the cavity after 37 000 excitation pulses, showing promise for its use in practical polaritonic devices.
Metadata
Authors/Creators: |
|
||||
---|---|---|---|---|---|
Copyright, Publisher and Additional Information: | © 2022 The Royal Society of Chemistry. This is an author-produced version of a paper subsequently published in Journal of Materials Chemistry C. Uploaded in accordance with the publisher's self-archiving policy. | ||||
Dates: |
|
||||
Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||
Funding Information: |
|
||||
Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 04 Apr 2022 07:05 | ||||
Last Modified: | 28 Feb 2023 01:13 | ||||
Status: | Published | ||||
Publisher: | Royal Society of Chemistry (RSC) | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1039/d1tc05554b |