List of Articles K. Lalithambigai Article 1 - Study on higher order azimuthally polarized Laguerre–Gaussian mode beams with high NA lens 10.1007/s40094-014-0134-8 K. Lalithambigai P. M. Anbarasan K. B. Rajesh Journal of Theoretical and Applied Physics , Issue 1 , Year , Summer 2014