We address Bessel optical lattices of radial symmetry imprinted in cubic Kerr-type nonlinear media and show that they support families of stable dipole-mode solitons featuring two out-of-phase light spots located in different lattice rings. We show that the radial symmetry of the Bessel lattices affords a variety of unique soliton dynamics including controlled radiation-free rotation of the dipole-mode solitons.
Kartashov, Y.V., Egorov, A., Vysloukh, V.A., Torner, L. Rotary dipole-mode solitons in Bessel optical lattices. "Journal of optics B. Quantum and semiclasical optics", Setembre 2004, vol. 6, núm. 11, p. 444-447.