Observation of Toroidal Light Pulses
Apostolos Zdagkas, Yijie Shen, Shankar Pidishety, Nikitas Papasimakis, Nikolay I. Zheludev, Cormac McDonnell, Junhong Deng, Guixin Li, Tal Ellenbogen
Abstract
We report on the observation of optical and terahertz non-transverse, non-separable electromagnetic pulses of toroidal topology that are propagating counterparts of the localized toroidal dipoles launched from toroidal emitter metasurfaces excited by conventional laser pulses.
Topics & Concepts
ToroidTerahertz radiationPhysicsTransverse planeElectromagnetic pulseDipoleOpticsExcited stateCommon emitterLaserTopology (electrical circuits)OptoelectronicsAtomic physicsElectrical engineeringEngineeringPlasmaQuantum mechanicsStructural engineeringTerahertz technology and applicationsMetamaterials and Metasurfaces ApplicationsQuantum optics and atomic interactions