Collective scattering and oscillation modes of optically bound point particles trapped in a single mode waveguide field

Abstract

Collective coherent scattering of laser light induces strong light forces between polarizable point particles. These dipole forces are strongly enhanced in magnitude and distance within the field of an optical waveguide so that at low temperature the particles self-order in strongly bound regular patterns. The stationary configurations typically exhibit super-radiant scattering with strong particle and light confinement. Here we study collective excitations of such self-consistent crystalline particle-light structures as function of particle number and pump strength. Multiple scattering and absorption modify the collective particle-field eigenfrequencies and create eigenmodes of surprisingly complex nature. For larger arrays this often leads to dynamical instabilities and disintegration of the structures even if additional damping is present.

References in corpus (10)

• Cold atoms in cavity-generated dynamical optical potentials
• Quantum Spin Dimers from Chiral Dissipation in Cold-Atom Chains
• Self-organization of atoms along a nanophotonic waveguide
• Scattering theory of cooling and heating in opto-mechanical systems
• Light induced crystallization of cold atoms in a thin 1D optical tube
• Giant vacuum forces via transmission lines
• Collective excitations and instability of an optical lattice due to unbalanced pumping
• Self-ordering and collective dynamics of transversely illuminated point-scatterers in a 1D trap
• Scattering approach to two-colour light forces and self-ordering of polarizable particles
• Optomechanical deformation and strain in elastic dielectrics

Cited by in corpus (5)

• Super- and subradiance of clock atoms in multimode optical waveguides
• Quantum theory of non-Hermitian optical binding between nanoparticles
• Tailored long range forces on polarizable particles by collective scattering of broadband radiation
• Observation of Light-Induced Dipole-Dipole Forces in Ultracold Atomic Gases
• Synthesizing variable particle interaction potentials via spectrally shaped spatially coherent illumination