Generating and controlling electron spin states with spatially structured polarized light. (IMAGE)

Tokyo University of Science

Generating and controlling electron spin states with spatially structured polarized light.

Caption

Researchers from Japan have utilized a vector optical vortex (left), a structured light with spatially variant polarization, for generating spatially structured spin states in a semiconductor quantum well (left). This is achieved by imprinting the vortex beam’s structure on to the electron spins. Moreover, the combination of the excited spin texture and PSH fields leads to two helical spin waves with opposite phases.

Credit

Jun Ishihara from TUS, Japan

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