TY - JOUR TI - Investigation of Azimuthally Polarized Bessel-modulated Gaussian Beam with Annular Obstruction AU - K. Gokulakrishnan AU - T. V. Sivasubramonia Pillai PY - 2015 DO - 10.13074/jent.2015.03.144119 T2 - Journal of Environmental Nanotechnology JF - Journal of Environmental Nanotechnology JA - J. Environ. Nanotechnol. SP - 32 EP - 36 VL - 4 IS - 1 PB - Institute for Environmental Nanotechnology ER -