Experimental Probing of Canonical Electromagnetic Spin Angular Momentum Distribution via Valley-Polarized Photoluminescence,Physical Review Letters

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Experimental Probing of Canonical Electromagnetic Spin Angular Momentum Distribution via Valley-Polarized Photoluminescence
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-11-24 , DOI: 10.1103/physrevlett.127.223601
Donghyeong Kim ₁ , Min-Kyo Seo ₁

Affiliation

The canonical formulation of the spin angular momentum (SAM) of light has been suggested recently as an extension of the Abraham-Minkowski controversy. However, experimental substantiations of the canonical SAM for localized fields have not been reported yet. We directly probe the locally distributed canonical SAM tailored by a plasmonic nanostructure via the valley-polarized photoluminescence of the multilayer

{WS}_{2}

. The spectrum-resolved measurement details the spin-selective Raman scattering and exciton emission beyond the conventional manner of employing circularly polarized paraxial waves.

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