Metasurface-Controlled Photonic Rashba Effect for Upconversion Photoluminescence.
basic_science · Level V
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- Record sourced from PubMed, PMID 36946059.
- Also identified by DOI 10.1021/acs.nanolett.2c04861.
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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 <i>the photonic Rashba effect</i> realized for upconverted photoluminescence that is manifested in the spin-dependent splitting of emitted light in the momentum space.