%0 Journal Article %T Effect of Pupil Beam in the Focal Region of High Numerical Aperture Objective Lens %A C. Amala Prathiba Janet %A P. Suresh %A T. V. S. Pillai %D 2015 %R 10.13074/jent.2015.03.144117 %J Journal of Environmental Nanotechnology %P 76-79 %V 4 %N 1 %I Institute for Environmental Nanotechnology %U https://doi.org/10.13074/jent.2015.03.144117