Demas, J. Steinvurzel, P. Tai, B. Rishøj, L. Chen, Y. Ramachandran, S. Supplement 1: Intermodal nonlinear mixing with Bessel beams in optical fiber Originally published in Optica on 20 January 2015 (optica-2-1-14) nonlinear;Intermodal;Optica;Bessel beams;supplement;optica;20 January 2015 2015-01-20
    https://opticapublishing.figshare.com/articles/journal_contribution/Supplement_1_Intermodal_nonlinear_mixing_with_Bessel_beams_in_optical_fiber/4921526
10.1364/OPTICA.2.000014.s001