Quantum electrodynamical theory of high-efficiency excitation energy transfer in laser-driven nanostructure systems

Weeraddana, Dilusha; Premaratne, Malin; Gunapala, Sarath D.; Andrews, Davıd L.

doi:10.1103/physrevb.94.085133

Cited by 13 publications

(10 citation statements)

References 49 publications

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“…Inter alia, the QED analysis also showed that the two supposedly different mechanisms can never compete in determining the distance-dependent dynamics of energy transfer. The results, which have now become standard textbook material in the field of nano-optics [45], have found recent applications on energy transfer in engineered nanoscale structures [149,150].…”

Section: A Differences In Perspectivementioning

confidence: 99%

Quantum electrodynamics in modern optics and photonics: tutorial

et al. 2020

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One of the key frameworks for developing the theory of light-matter interactions in modern optics and photonics is quantum electrodynamics (QED). Contrasting with semiclassical theory, which depicts electromagnetic radiation as a classical wave, QED representations of quantized light fully embrace the concept of the photon. This tutorial review is a broad guide to cutting-edge applications of QED, providing an outline of its underlying foundation and an examination of its role in photon science. Alongside the full quantum methods, it is shown how significant distinctions can be drawn when compared to semiclassical approaches. Clear advantages in outcome arise in the predictive capacity and physical insights afforded by QED methods, which favors its adoption over other formulations of radiation-matter interaction.

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Section: A Differences In Perspectivementioning

confidence: 99%

Quantum electrodynamics in modern optics and photonics: tutorial

et al. 2020

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“…Further examples have been explored in considering the two major relaxation routes of an electronically excited molecule: fluorescence and resonant energy transfer (RET). Application of off-resonance light to both these processes lead to increased control through laser-modified fluorescence and laser-assisted resonance energy transfer (LARET) [10][11][12][13][14][15] . In laser-assisted fluorescent emission, the forward Rayleigh scattering of the detuned laser leads to either an enhanced or suppressed rate of fluorescent emission, in an analogous fashion to the effect on absorption.…”

Section: Optical Catalysis Of Light-matter Processesmentioning

confidence: 99%

Passive laser irradiation as a tool for optical catalysis

Forbes

Andrews

2020

Nanophotonics VIII

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The mechanisms of absorption, emission, and scattering of photons form the foundations of optical interactions between light and matter. In the vast majority of such interactions there is a significant interplay and energy exchange between the radiation field and the material components. In absorption for example, modes of the field are depopulated by photons whose energy is at resonance with a molecular transition producing excited material states. In all such optical phenomena, the initial state of the radiation field differs in mode occupation to its final state. However, certain optical processes can involve off-resonance laser beams that are unchanged on interaction with the material: the output light, after interaction, is identical to the laser input. Such off-resonance interactions include forward Rayleigh scattering, responsible for the wellknown gradient force in optical trapping, and the laser-induced intermolecular interaction commonly termed optical binding; in both processes, an intense beam delivers its effect without suffering change. It is possible for beams detuned from resonance to provide not only techniques for optomechanical and optical manipulation, but also to passively influence other important and functional interactions such as absorption from a resonant beam, or energy transfer. Such effects can be grouped under the banner of 'optical catalysis', since they can significantly influence resonant processes. Furthermore, off-resonance photonics affords a potential to impact on chemical interactions, as in the passive modification of rotational constants and phase transitions. To date, apart from optical manipulation, the potential applicability of passive photonics, particularly in the realm of chemical physics and materials science, has received little attention. Here we open up this field, highlighting the distinct and novel role that off-resonance laser beams and the ensuing photonics can play.

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“…The minute nature of these devices theoretically enables minimally invasive treatment of cancers [46]. Therefore, various attempts are being made at understanding light, heat, and matter interactions [47], energy transportation [48][49][50][51], as well as the modeling of such nanoscopic devices targeting this application, ranging from gold nanoshells [52] to nanoscopic lasers known as spasers [53][54][55].…”

Section: B Proposed Application: Photothermal Cancer Therapymentioning

confidence: 99%

Tuneable superradiant thermal emitter assembly

et al. 2017

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Superradiance is a signature effect in quantum photonics that explains the collective enhancement of emission power by a factor of N 2 when N emitters are placed in subwavelength proximity. Although the effect is inherently transient, successful attempts have been made to sustain it in the steady-state regime. Until recently, the effects of superradiance were not considered to be applicable to thermal emitters due to their intrinsic incoherent nature. Novel nanophotonic thermal emitters display favorable coherent characteristics that enable them to obey principles of superradiance. However, published analytical work on conventional superradiant thermal emitter assemblies shows an anomalous power scaling of 1/N , and therefore increasing the number of thermal emitters leads to a degeneration of power at resonance. This phenomenon immediately renders the effect of thermal superradiance futile since it cannot outperform noncoupled emitters in the steady-state regime. We propose an alternative assembly of thermal emitters with specific features that improves the power scaling while maintaining the effects of superradiance. In essence, we show that our emitter assembly achieves superior power delivery over conventional noncoupled emitter systems at resonance. Additionally, this assembly has the ability to be tuned to operate at specific resonant frequencies, which is a vital requirement for applications such as photothermal cancer therapy.

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Quantum electrodynamical theory of high-efficiency excitation energy transfer in laser-driven nanostructure systems

Cited by 13 publications

References 49 publications

Quantum electrodynamics in modern optics and photonics: tutorial

Quantum electrodynamics in modern optics and photonics: tutorial

Passive laser irradiation as a tool for optical catalysis

Tuneable superradiant thermal emitter assembly

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