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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… Click to show full 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.
Keywords:
photoluminescence;
effect;
rashba effect;
photonic rashba;
upconversion photoluminescence
Journal Title: Nano letters
Year Published: 2023
Link to full text (if available)
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Journal Title: Nano letters
Year Published: 2023
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!