title: A generalized Kerker condition for highly directive nanoantennas.
abstract: A nanoantenna with balanced electric and magnetic dipole moments, known as the first Kerker condition, exhibits a directive radiation pattern with zero backscattering. In principle, a nanoantenna can provide even better directionality if higher order moments are properly balanced. Here, we study a generalized Kerker condition in the example of a nanoring nanoantenna supporting electric dipole and electric quadrupole moments. Nanoring antennas are well suited since both multipole moments can be almost independently tuned to meet the generalized Kerker condition.
authors.forename: R
authors.initials: R
authors.lastname: Alaee
authors.forename: R
authors.initials: R
authors.lastname: Filter
authors.forename: D
authors.initials: D
authors.lastname: Lehr
authors.forename: F
authors.initials: F
authors.lastname: Lederer
authors.forename: C
authors.initials: C
authors.lastname: Rockstuhl