title: APPLIED OPTICS. Optical meta-atoms: Going nonlinear.
authors.affiliation: Department of Electrical Engineering, State University of New York, Buffalo, NY 14260, USA. natashal@buffalo.edu.
authors.forename: Natalia M
authors.initials: NM
authors.lastname: Litchinitser
authors.affiliation: Department of Electrical Engineering, State University of New York, Buffalo, NY 14260, USA.
authors.forename: Jingbo
authors.initials: J
authors.lastname: Sun