Self-bound droplets of light with orbital angular momentum

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Systems with competing attractive and repulsive interactions have a tendency to condense into droplets. This is the case for water in a sink, liquid helium, and dipolar atomic gases. Here we consider a photon fluid which is formed in the transverse plane of a monochromatic laser beam propagating in an attractive (focusing) nonlocal nonlinear medium. In this setting we demonstrate the formation of the optical analog of matter-wave droplets and study their properties. The system we consider admits droplets that carry orbital angular momentum. We find bound states possessing liquidlike properties, such as bulk pressure and compressibility. Interestingly, these droplets of light, as opposed to optical vortices, form due to the competition between long-range s-wave (monopole) and d-wave (quadrupole) interactions as well as diffraction.

Original languageEnglish (US)
Article number053835
JournalPhysical Review A
Volume98
Issue number5
DOIs
StatePublished - Nov 21 2018

Fingerprint

angular momentum
orbitals
monatomic gases
sinks
liquid helium
monopoles
compressibility
tendencies
quadrupoles
interactions
laser beams
vortices
analogs
fluids
photons
diffraction
water

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Westerberg, N., Wilson, K. E., Duncan, C. W., Faccio, D., Wright, E. M., Öhberg, P., & Valiente, M. (2018). Self-bound droplets of light with orbital angular momentum. Physical Review A, 98(5), [053835]. https://doi.org/10.1103/PhysRevA.98.053835

Self-bound droplets of light with orbital angular momentum. / Westerberg, Niclas; Wilson, Kali E.; Duncan, Callum W.; Faccio, Daniele; Wright, Ewan M; Öhberg, Patrik; Valiente, Manuel.

In: Physical Review A, Vol. 98, No. 5, 053835, 21.11.2018.

Research output: Contribution to journalArticle

Westerberg, N, Wilson, KE, Duncan, CW, Faccio, D, Wright, EM, Öhberg, P & Valiente, M 2018, 'Self-bound droplets of light with orbital angular momentum', Physical Review A, vol. 98, no. 5, 053835. https://doi.org/10.1103/PhysRevA.98.053835
Westerberg N, Wilson KE, Duncan CW, Faccio D, Wright EM, Öhberg P et al. Self-bound droplets of light with orbital angular momentum. Physical Review A. 2018 Nov 21;98(5). 053835. https://doi.org/10.1103/PhysRevA.98.053835
Westerberg, Niclas ; Wilson, Kali E. ; Duncan, Callum W. ; Faccio, Daniele ; Wright, Ewan M ; Öhberg, Patrik ; Valiente, Manuel. / Self-bound droplets of light with orbital angular momentum. In: Physical Review A. 2018 ; Vol. 98, No. 5.
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