C
Caspar Clark
Publications - 14
Citations - 832
Caspar Clark is an academic researcher. The author has contributed to research in topics: Polariton & Exciton. The author has an hindex of 7, co-authored 12 publications receiving 638 citations.
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Journal ArticleDOI
Polariton-mediated energy transfer between organic dyes in a strongly coupled optical microcavity.
David M. Coles,N. Somaschi,Paolo Michetti,Caspar Clark,Pavlos G. Lagoudakis,Pavlos G. Savvidis,David G. Lidzey +6 more
TL;DR: This work uses strong coupling in an optical microcavity to mix the electronic transitions of two J-aggregated molecular dyes and uses both non-resonant photoluminescence emission and photolumsinescence excitation spectroscopy to show that hybrid-polariton states act as an efficient and ultrafast energy-transfer pathway between the two exciton states.
Journal ArticleDOI
Vibrationally Assisted Polariton-Relaxation Processes in Strongly Coupled Organic-Semiconductor Microcavities
David M. Coles,Paolo Michetti,Caspar Clark,Wing C. Tsoi,Ali M. Adawi,Ji-Seon Kim,David G. Lidzey +6 more
TL;DR: In this paper, it was shown that a spectrum of localized vibrational modes (identified by Raman scattering) enhances the population of certain polaritonic modes by acting as an energy-loss channel to the excitons as they undergo scattering.
Journal ArticleDOI
Ultrafast polariton relaxation dynamics in an organic semiconductor microcavity
Tersilla Virgili,David M. Coles,Ali M. Adawi,Caspar Clark,Paolo Michetti,Sai Kiran Rajendran,Daniele Brida,Dario Polli,Giulio Cerullo,David G. Lidzey +9 more
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A Yellow Polariton Condensate in a Dye Filled Microcavity
Tamsin Cookson,Kyriacos Georgiou,Anton Zasedatelev,Richard T. Grant,Tersilla Virgili,Marco Cavazzini,Francesco Galeotti,Caspar Clark,Natalia G. Berloff,Natalia G. Berloff,David G. Lidzey,Pavlos G. Lagoudakis,Pavlos G. Lagoudakis +12 more
TL;DR: In this paper, a planar organic semiconductor microcavity containing the molecular dye bromine-substituted boron-dipyrromethene is observed.
Journal ArticleDOI
Efficient Radiative Pumping of Polaritons in a Strongly Coupled Microcavity by a Fluorescent Molecular Dye
Richard T. Grant,Paolo Michetti,Andrew J. Musser,Pascal Grégoire,Tersilla Virgili,Eleonora Vella,Marco Cavazzini,Kyriacos Georgiou,Francesco Galeotti,Caspar Clark,Jenny Clark,Carlos Silva,David G. Lidzey +12 more
TL;DR: In this article, the optical properties of a series of strongly coupled microcavities containing the fluorescent molecular dye BODIPY-Br (bromine-substituted boron-dipyrromethene) dispersed into a transparent dielectric matrix are explored, with each cavity having a different exciton-photon detuning.