Metasurface-Controlled Photonic Rashba Effect for Upconversion Photoluminescence
Aditya Tripathi, Anastasiia Zalogina, Jiayan Liao, Matthias Wurdack, Eliezer Estrecho, Jiajia Zhou, Dayong Jin, Sergey Kruk, Yuri S. Kivshar
Abstract
We demonstrate the effect of spin-momentum locking of upconversion photoluminescence emitted from rare-earth doped nanocrystals coupled to a phase-gradient dielectric metasurface. We observe different directionalities for left and right circular polarized light and associate this experimental observation with the photonic Rashba effect realized for upconverted photoluminescence that is manifested in the spin-dependent splitting of emitted light in the momentum space.
Topics & Concepts
PhotoluminescencePhoton upconversionMaterials scienceDielectricPhotonicsOptoelectronicsMomentum (technical analysis)NanocrystalDopingCondensed matter physicsOpticsPhysicsNanotechnologyFinanceEconomicsQuantum optics and atomic interactionsTerahertz technology and applicationsTopological Materials and Phenomena