title: Hotspots from nonreciprocal surface waves.
abstract: We present theoretical and numerical results for a new method of obtaining hotspots that relies on nonreciprocal "one-way" propagation as opposed to the well-known case of resonance-based hotspots. The nonreciprocal propagation is achieved by the breaking of time-reversal symmetry through the use of magnetically biased medium. The location and existence of the hotspots depends on the magnetic bias that results in the breaking of the time-reversal symmetry. This results in the intriguing possibility of switching and spatial control of the hotspots through the magnetic bias.
authors.forename: Uday K
authors.initials: UK
authors.lastname: Chettiar
authors.forename: Arthur R
authors.initials: AR
authors.lastname: Davoyan
authors.forename: Nader
authors.initials: N
authors.lastname: Engheta