In the paper Spin-dependent quantum interference in photoemission process from spin-orbit coupled states, Nature Communications 8, 14588 (2017), doi:10.1038/ncomms14588, Koichiro Yaji et al. show how laser based spin- and angle-resolved photoelectron spectroscopy is used to study the spin-orbital texture, and especially three-dimensional spin-rotation effects, in a surface state of Bi(111).