Focusing of cylindrical vector beams with an order from zero to one and with an order greater than one

The effect of deviation of the beam order from topological carge $m=2$ (i.e., in the case of the reverse flow is detected in the center of the focus) was investigated. For this, we simulated the tight focusing of azimuthal polarization vector beams with fractional order. As a result, the reverse flow is retained in the central part of the focus even at rather large divergence of the beam orders from the topological carge $m=2$. It is retained up to $m=1.55$.