  We propose a new method to generate optical needles by focusing vector beams
comprised of radially polarized component and azimuthally polarized vortex
components. The radial part can generate longitudinal polarization, while the
azimuthal parts can generate left- and right-handed polarization. Hence, an
arbitrary 3D polarization can be obtained. To our knoeledge, it may be the
first time that arbitrarily polarized optical needles whose transverse sizes
are under 0.5$\lambda$ have been achieved. And their polarized homogeneity is
beyond 0.97.
