TY - JOUR TI - Generation of Sub Wavelength Focal Hole Segment Using Azimuthally Polarized Annular Multi Gaussian Beam by High NA Parabolic Mirror AU - K. B. Rajesh AU - M. Udhayakumar AU - K. Prabakaran AU - Haresh M Pandya PY - 2014 DO - 10.13074/jent.2014.12.144127 T2 - Journal of Environmental Nanotechnology JF - Journal of Environmental Nanotechnology JA - J. Environ. Nanotechnol. SP - 31 EP - 34 VL - 3 IS - (Special Issue) PB - Institute for Environmental Nanotechnology ER -