Elastic Purcell effect

Mikołaj K. Schmidt, L. G. Helt, Christopher G. Poulton, M. J. Steel

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In this work, we introduce an elastic analog of the Purcell effect and show theoretically that spherical nanoparticles can serve as tunable and robust antennas for modifying the emission from localized elastic sources. This effect can be qualitatively described by introducing elastic counterparts of the familiar electromagnetic parameters: local density of elastic states, elastic Purcell factor, and effective volume of elastic modes. To illustrate our framework, we consider the example of a submicron gold sphere as a generic elastic GHz antenna and find that shear and mixed modes of low orders in such systems offer considerable elastic Purcell factors. This formalism opens pathways towards extended control over dissipation of vibrations in various optomechanical systems and contributes to closing the gap between classical and quantum-mechanical treatments of phonons localized in elastic nanoresonators.

LanguageEnglish
Article number064301
Pages1-6
Number of pages6
JournalPhysical Review Letters
Volume121
Issue number6
DOIs
Publication statusPublished - 8 Aug 2018

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antennas
closing
phonons
dissipation
analogs
gold
electromagnetism
formalism
shear
vibration
nanoparticles

Cite this

Schmidt, Mikołaj K. ; Helt, L. G. ; Poulton, Christopher G. ; Steel, M. J. / Elastic Purcell effect. In: Physical Review Letters. 2018 ; Vol. 121, No. 6. pp. 1-6.
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Elastic Purcell effect. / Schmidt, Mikołaj K.; Helt, L. G.; Poulton, Christopher G.; Steel, M. J.

In: Physical Review Letters, Vol. 121, No. 6, 064301, 08.08.2018, p. 1-6.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Schmidt, Mikołaj K.

AU - Helt, L. G.

AU - Poulton, Christopher G.

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