Multiple-Beam Power Combining Using Space-Time Metasurfaces

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In this talk, we will present a new concept of space-time power combiners which allow perfect power concentration of plane waves from multiple input directions to a single wave propagating into the desired output direction. Such functionality can be realized in metasurfaces with travelling-wave modulations of the surface impedance. The spatiotemporal modulation imparts different spatial and temporal momenta on the incident beams, such that their reflected beams are spatially collimated and their powers are incoherently summed. The proposed technique has very important applications in unidirectional guiding of electromagnetic signals among multiple routes, as well as in high-power laser technologies.

Original languageEnglish
Title of host publication2021 15th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2021
Number of pages3
ISBN (Electronic)978-1-7281-5018-5
Publication statusPublished - 20 Sept 2021
MoE publication typeA4 Conference publication
EventInternational Congress on Artificial Materials for Novel Wave Phenomena - Virtual, Online, New York, United States
Duration: 20 Sept 202125 Sept 2021
Conference number: 15


ConferenceInternational Congress on Artificial Materials for Novel Wave Phenomena
Abbreviated titleMetamaterials
Country/TerritoryUnited States
CityNew York


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