%0 Journal Article %T Focusing Properties of Double Ring Shaped Cylindrical Vector Beam by High NA Parabolic Mirror %A K. B. Rajesh %A N. Umamageswari %A M. Udhayakumar %A Haresh M.Pandya %D 2014 %R 10.13074/jent.2014.12.144124 %J Journal of Environmental Nanotechnology %P 15-20 %V 3 %N (Special Issue) %I Institute for Environmental Nanotechnology %U https://doi.org/10.13074/jent.2014.12.144124