Observation of Photon Droplets and Their Dynamics

Kali E. Wilson, Niclas Westerberg, Manuel Valiente, Callum W. Duncan, Ewan M Wright, Patrik Öhberg, Daniele Faccio

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We present experimental evidence of photon droplets in an attractive (focusing) nonlocal nonlinear medium. Photon droplets are self-bound, finite-sized states of light that are robust to size and shape perturbations due to a balance of competing attractive and repulsive forces. It has recently been shown theoretically, via a multipole expansion of the nonlocal nonlinearity, that the self-bound state arises due to competition between the s-wave and d-wave nonlinear terms, together with diffraction. The theoretical photon droplet framework encompasses both a solitonlike stationary ground state and the nonsolitonlike dynamics that ensue when the system is displaced from equilibrium, i.e., driven into an excited state. We present numerics and experiments supporting the existence of these photon droplet states and measurements of the dynamical evolution of the photon droplet orbital angular momentum.

Original languageEnglish (US)
Article number133903
JournalPhysical Review Letters
Volume121
Issue number13
DOIs
StatePublished - Sep 27 2018

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photons
multipoles
angular momentum
nonlinearity
orbitals
perturbation
expansion
ground state
diffraction
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wilson, K. E., Westerberg, N., Valiente, M., Duncan, C. W., Wright, E. M., Öhberg, P., & Faccio, D. (2018). Observation of Photon Droplets and Their Dynamics. Physical Review Letters, 121(13), [133903]. https://doi.org/10.1103/PhysRevLett.121.133903

Observation of Photon Droplets and Their Dynamics. / Wilson, Kali E.; Westerberg, Niclas; Valiente, Manuel; Duncan, Callum W.; Wright, Ewan M; Öhberg, Patrik; Faccio, Daniele.

In: Physical Review Letters, Vol. 121, No. 13, 133903, 27.09.2018.

Research output: Contribution to journalArticle

Wilson, KE, Westerberg, N, Valiente, M, Duncan, CW, Wright, EM, Öhberg, P & Faccio, D 2018, 'Observation of Photon Droplets and Their Dynamics', Physical Review Letters, vol. 121, no. 13, 133903. https://doi.org/10.1103/PhysRevLett.121.133903
Wilson KE, Westerberg N, Valiente M, Duncan CW, Wright EM, Öhberg P et al. Observation of Photon Droplets and Their Dynamics. Physical Review Letters. 2018 Sep 27;121(13). 133903. https://doi.org/10.1103/PhysRevLett.121.133903
Wilson, Kali E. ; Westerberg, Niclas ; Valiente, Manuel ; Duncan, Callum W. ; Wright, Ewan M ; Öhberg, Patrik ; Faccio, Daniele. / Observation of Photon Droplets and Their Dynamics. In: Physical Review Letters. 2018 ; Vol. 121, No. 13.
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