Tuning the Optically Bright and Dark States of Doped Graphene Quantum Dots

Mukhopadhyay, Madhuri; Pandey, Bradraj; Pati, Swapan K.

doi:10.1103/physrevapplied.6.044014

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…On the other hand, graphene quantum dots, flakes of graphene with small (few nanometers) lateral dimensions, represent an emerging class of excitonic materials whose transition frequency can be tuned in a wide range spanning from the UV down to the near-IR range via adjusting lateral size of the flake . Theoretical studies have predicted large oscillator strengths of such quantum dots in the near-IR region of the order of 1, corresponding to a transition dipole moment of ≈10 D . To the best of our knowledge, this class of quantum emitters has not been employed for studies of Rabi splitting yet.…”

Section: Discussion and Outlookmentioning

confidence: 99%

Novel Nanostructures and Materials for Strong Light–Matter Interactions

et al. 2017

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Quantum mechanical interactions between electromagnetic radiation and matter underlie a broad spectrum of optical phenomena. Strong light-matter interactions result in the well-known vacuum Rabi splitting and emergence of new polaritonic eigenmodes of the coupled system. Thanks to recent progress in nanofabrication, observation of strong coupling has become possible in a great variety of optical nanostructures. Here, we review recently studied and emerging materials for realization of strong light–matter interactions. We present general theoretical formalism describing strong coupling and give an overview of various photonic structures and materials allowing for realization of this regime, including plasmonic and dielectric nanoantennas, novel two-dimensional materials, carbon nanotubes, and molecular vibrational transitions. In addition, we discuss practical applications that can benefit from these effects and give an outlook on unsettled questions that remain open for future research.

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Section: Discussion and Outlookmentioning

confidence: 99%

Novel Nanostructures and Materials for Strong Light–Matter Interactions

et al. 2017

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Quantum plasmonics get applied

Zhou

Liu

Bao

et al. 2019

Progress in Quantum Electronics

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Room-temperature plexcitonic strong coupling: Ultrafast dynamics for quantum applications

Xiong

Kongsuwan

Lai

et al. 2021

Applied Physics Letters

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Strong light-matter interaction is at the heart of modern quantum technological applications and is the basis for a wide range of rich optical phenomena. Coupling a single quantum emitter strongly with electromagnetic fields provides an unprecedented control over its quantum states and enables high-fidelity quantum operations. However, single-emitter strong coupling is exceptionally fragile and has been realized mostly at cryogenic temperatures. Recent experiments have, however, demonstrated that single-emitter strong coupling can be realized at room temperature by using plasmonic nanocavities that confine optical fields via surface plasmons strongly on metal surfaces and facilitate sub-picosecond light-matter interaction. Here, we outline recent theoretical developments and experimental demonstrations of roomtemperature strong coupling in the plasmonic platform, from emitter ensembles down to the single emitter limit, before placing a focus on selective studies that explore and provide insight into applications of plexcitonic strong coupling including sensing of single biological molecules, qubit entanglement generation, and reconfigurable single-photon sources and provide an outline of research directions in quantum sensing, quantum information processing, and ultrafast spectroscopy.

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Tuning the Optically Bright and Dark States of Doped Graphene Quantum Dots

Cited by 5 publications

References 53 publications

Novel Nanostructures and Materials for Strong Light–Matter Interactions

Novel Nanostructures and Materials for Strong Light–Matter Interactions

Quantum plasmonics get applied

Room-temperature plexcitonic strong coupling: Ultrafast dynamics for quantum applications

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