Photoemission, absorption, scattering (3)

[LSC5-01(Invited)] Visualization of optical polarization transfer to photoelectron spin vector emitted from a spin-orbit coupled surface state

*Kenta Kuroda^1,2 (1. Hiroshima University, 2. WPI-SKCM2)

Like light polarization that is selected by a superposition of the optical basis, the electron spin direction can be controlled through a superposition of the spin basis. By spin- and angle-resolved photoemission spectroscopy with a laser, we demonstrate that such optical information can be projected to the 3D spin vector of the photoelectrons from Bi₂Se₃ surface, permitting us to optically control the pure spin state pointing to an arbitrary direction.