TY - JOUR TI - Investigation of Azimuthally Polarized Bessel‐modulated Gaussian Beam with Annular Obstruction AU - K. Gokulakrishnan AU - T. V. Sivasubramonia Pillai AU - K.B. Rajesh PY - 2014 DO - 10.13074/jent.2014.12.144122 T2 - Journal of Environmental Nanotechnology JF - Journal of Environmental Nanotechnology JA - J. Environ. Nanotechnol. SP - 04 EP - 08 VL - 3 IS - (Special Issue) PB - Institute for Environmental Nanotechnology ER -