Bashevoy, M. V. Fedotov, V. A. Zheludev, N. I. Media 2: Optical whirlpool on an absorbing metallic nanoparticle Originally published in Optics Express on 17 October 2005 (oe-13-21-8372) 17 October 2005;media;oe;Optics Express;Optical;nanoparticle;whirlpool 2005-10-17
    https://opticapublishing.figshare.com/articles/media/Media_2_Optical_whirlpool_on_an_absorbing_metallic_nanoparticle/4933451
10.1364/OPEX.13.008372.m002