Room Temperature Weak-to-Strong Coupling and the Emergence of Collective Emission from Quantum Dots Coupled to Plasmonic Arrays

Ravindra Kumar Yadav; Marc R. Bourgeois; Charles Cherqui; Xitlali G. Juarez; Weijia Wang; Teri W. Odom; George C. Schatz; Jaydeep Kumar Basu

doi:10.1021/acsnano.0c02785

Room Temperature Weak-to-Strong Coupling and the Emergence of Collective Emission from Quantum Dots Coupled to Plasmonic Arrays

Ravindra Kumar Yadav, Marc R. Bourgeois, Charles Cherqui, Xitlali G. Juarez, Weijia Wang, Teri W. Odom^*, George C. Schatz^*, Jaydeep Kumar Basu^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

Colloidal quantum dot (CQD) assemblies exhibit interesting optoelectronic properties when coupled to optical resonators ranging from Purcell-enhanced emission to the emergence of hybrid electronic and photonic polariton states in the weak and strong coupling limits, respectively. Here, experiments exploring the weak-to-strong coupling transition in CQD-plasmonic lattice hybrid devices at room temperature are presented for varying CQD concentrations. To interpret these results, generalized retarded Fano-Anderson and effective medium models are developed. Individual CQDs are found to interact locally with the lattice yielding Purcell-enhanced emission. At high CQD densities, polariton states emerge as two-peak structures in the photoluminescence, with a third polariton peak, due to collective CQD emission, appearing at still higher CQD concentrations. Our results demonstrate that CQD-lattice plasmon devices represent a highly flexible platform for the manipulation of collective spontaneous emission using lattice plasmons, which could find applications in optoelectronics, ultrafast optical switches, and quantum information science.

Original language	English (US)
Pages (from-to)	7347-7357
Number of pages	11
Journal	ACS nano
Volume	14
Issue number	6
DOIs	https://doi.org/10.1021/acsnano.0c02785
State	Published - Jun 23 2020

Funding

The authors acknowledge the Indo-U.S. Science Technology Forum (IUSSTF) for funding through a virtual centre on quantum plasmonics. The authors acknowledge DST Nanomission, India, for funding. G.C.S. and C.C. were supported by NSF Grant CHE-1760537 (theory development), and G.C.S., M.B., and T.O. were supported by NSF Grant DMR-1904385 (theory applications and laser research). This work utilized the Northwestern University Micro/Nano Fabrication Facility (NUFAB), which is partially supported by Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205), the Materials Research Science and Engineering Center (DMR-1720139), the State of Illinois, and Northwestern University. This research was supported in part by the Quest high performance computing facility at Northwestern University, which is jointly supported by the Office of the Provost, the Office for Research, and Northwestern University Information Technology.

Keywords

Purcell factor
lattice plasmons
polariton
quantum dot
strong coupling
surface lattice resonances

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

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10.1021/acsnano.0c02785

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title = "Room Temperature Weak-to-Strong Coupling and the Emergence of Collective Emission from Quantum Dots Coupled to Plasmonic Arrays",

abstract = "Colloidal quantum dot (CQD) assemblies exhibit interesting optoelectronic properties when coupled to optical resonators ranging from Purcell-enhanced emission to the emergence of hybrid electronic and photonic polariton states in the weak and strong coupling limits, respectively. Here, experiments exploring the weak-to-strong coupling transition in CQD-plasmonic lattice hybrid devices at room temperature are presented for varying CQD concentrations. To interpret these results, generalized retarded Fano-Anderson and effective medium models are developed. Individual CQDs are found to interact locally with the lattice yielding Purcell-enhanced emission. At high CQD densities, polariton states emerge as two-peak structures in the photoluminescence, with a third polariton peak, due to collective CQD emission, appearing at still higher CQD concentrations. Our results demonstrate that CQD-lattice plasmon devices represent a highly flexible platform for the manipulation of collective spontaneous emission using lattice plasmons, which could find applications in optoelectronics, ultrafast optical switches, and quantum information science.",

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author = "Yadav, {Ravindra Kumar} and Bourgeois, {Marc R.} and Charles Cherqui and Juarez, {Xitlali G.} and Weijia Wang and Odom, {Teri W.} and Schatz, {George C.} and Basu, {Jaydeep Kumar}",

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year = "2020",

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doi = "10.1021/acsnano.0c02785",

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AU - Bourgeois, Marc R.

AU - Cherqui, Charles

AU - Juarez, Xitlali G.

AU - Wang, Weijia

AU - Odom, Teri W.

AU - Schatz, George C.

AU - Basu, Jaydeep Kumar

PY - 2020/6/23

Y1 - 2020/6/23

N2 - Colloidal quantum dot (CQD) assemblies exhibit interesting optoelectronic properties when coupled to optical resonators ranging from Purcell-enhanced emission to the emergence of hybrid electronic and photonic polariton states in the weak and strong coupling limits, respectively. Here, experiments exploring the weak-to-strong coupling transition in CQD-plasmonic lattice hybrid devices at room temperature are presented for varying CQD concentrations. To interpret these results, generalized retarded Fano-Anderson and effective medium models are developed. Individual CQDs are found to interact locally with the lattice yielding Purcell-enhanced emission. At high CQD densities, polariton states emerge as two-peak structures in the photoluminescence, with a third polariton peak, due to collective CQD emission, appearing at still higher CQD concentrations. Our results demonstrate that CQD-lattice plasmon devices represent a highly flexible platform for the manipulation of collective spontaneous emission using lattice plasmons, which could find applications in optoelectronics, ultrafast optical switches, and quantum information science.

AB - Colloidal quantum dot (CQD) assemblies exhibit interesting optoelectronic properties when coupled to optical resonators ranging from Purcell-enhanced emission to the emergence of hybrid electronic and photonic polariton states in the weak and strong coupling limits, respectively. Here, experiments exploring the weak-to-strong coupling transition in CQD-plasmonic lattice hybrid devices at room temperature are presented for varying CQD concentrations. To interpret these results, generalized retarded Fano-Anderson and effective medium models are developed. Individual CQDs are found to interact locally with the lattice yielding Purcell-enhanced emission. At high CQD densities, polariton states emerge as two-peak structures in the photoluminescence, with a third polariton peak, due to collective CQD emission, appearing at still higher CQD concentrations. Our results demonstrate that CQD-lattice plasmon devices represent a highly flexible platform for the manipulation of collective spontaneous emission using lattice plasmons, which could find applications in optoelectronics, ultrafast optical switches, and quantum information science.

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KW - surface lattice resonances

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Room Temperature Weak-to-Strong Coupling and the Emergence of Collective Emission from Quantum Dots Coupled to Plasmonic Arrays

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