Nonlinear Metasurface Fresnel Zone Plates for Terahertz Generation and Manipulation
Sign Up to like & getrecommendations! Published in 2019 at "Nano Letters"
DOI: 10.1021/acs.nanolett.9b01970
Abstract: We introduce a nanoengineered nonlinear metasurface based optical element that acts as an emitting Fresnel zone plate of terahertz (THz) waves. We show that the nonlinear zone plate generates broadband THz radiation and focuses each… read more here.
Keywords: zone; fresnel zone; metasurface; zone plate ... See more keywords
Efficient Nonlinear Metasurface Based on Nonplanar Plasmonic Nanocavities
Sign Up to like & getrecommendations! Published in 2017 at "ACS Photonics"
DOI: 10.1021/acsphotonics.7b00094
Abstract: Since their discovery in the 1960s, nonlinear optical effects have revolutionized optical technologies and laser industry. Development of efficient nanoscale nonlinear sources will pave the way for new applications in photonic circuitry, quantum optics and… read more here.
Keywords: based nonplanar; efficient nonlinear; nonplanar plasmonic; metasurface based ... See more keywords
Dynamic coherent perfect absorption in nonlinear metasurfaces.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.402380
Abstract: In this Letter, we propose a tunable coherent perfect absorber based on ultrathin nonlinear metasurfaces. A nonlinear metasurface is made of plasmonic nanoantennas coupled to an epsilon-near-zero material with a large optical nonlinearity. The coherent… read more here.
Keywords: absorption; perfect absorption; coherent perfect; dynamic coherent ... See more keywords