Thermalization of Fluorescent Protein Exciton-Polaritons at Room Temperature

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 15 vom: 20. Apr., Seite e2109107
1. Verfasser: Satapathy, Sitakanta (VerfasserIn)
Weitere Verfasser: Liu, Bin, Deshmukh, Prathmesh, Molinaro, Paul M, Dirnberger, Florian, Khatoniar, Mandeep, Koder, Ronald L, Menon, Vinod M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article exciton-polaritons fluorescent proteins optical cavities polariton condensation strong coupling thermalization
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520 |a Fluorescent proteins (FPs) have recently emerged as a serious contender for realizing ultralow threshold room temperature exciton-polariton condensation and lasing. This contribution investigates the thermalization of FP microcavity exciton-polaritons upon optical pumping under ambient conditions. Polariton cooling is realized using a new FP molecule, called mScarlet, coupled strongly to the optical modes in a Fabry-Pérot cavity. Interestingly, at the threshold excitation energy (fluence) of ≈9 nJ per pulse (15.6 mJ cm-2 ), an effective temperature is observed, Teff  ≈ 350 ± 35 K close to the lattice temperature indicative of strongly thermalized exciton-polaritons at equilibrium. This efficient thermalization results from the interplay of radiative pumping facilitated by the energetics of the lower polariton branch and the cavity Q-factor. Direct evidence for dramatic switching from an equilibrium state into a metastable state is observed for the organic cavity polariton device at room temperature via deviation from the Maxwell-Boltzmann statistics at k‖  = 0 above the threshold. Thermalized polariton gases in organic systems at equilibrium hold substantial promise for designing room temperature polaritonic circuits, switches, and lattices for analog simulation 
650 4 |a Journal Article 
650 4 |a exciton-polaritons 
650 4 |a fluorescent proteins 
650 4 |a optical cavities 
650 4 |a polariton condensation 
650 4 |a strong coupling 
650 4 |a thermalization 
700 1 |a Liu, Bin  |e verfasserin  |4 aut 
700 1 |a Deshmukh, Prathmesh  |e verfasserin  |4 aut 
700 1 |a Molinaro, Paul M  |e verfasserin  |4 aut 
700 1 |a Dirnberger, Florian  |e verfasserin  |4 aut 
700 1 |a Khatoniar, Mandeep  |e verfasserin  |4 aut 
700 1 |a Koder, Ronald L  |e verfasserin  |4 aut 
700 1 |a Menon, Vinod M  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 34(2022), 15 vom: 20. Apr., Seite e2109107  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnas 
773 1 8 |g volume:34  |g year:2022  |g number:15  |g day:20  |g month:04  |g pages:e2109107 
856 4 0 |u http://dx.doi.org/10.1002/adma.202109107  |3 Volltext 
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