  We introduce a spin-orbit coupling scheme, where a retro-reflected laser beam
selectively diffracts two spin components in opposite directions. Spin
sensitivity is provided by sweeping through a magnetic-field sensitive
transition while dark states ensure that spontaneous emission remains low. The
scheme is adiabatic and thus inherently robust. This tailored spin-orbit
coupling allows simultaneous measurements of the spin and momentum
distributions of a strontium degenerate Fermi gas, and thus opens the path to
momentum-resolved spin correlation measurements on SU(N) quantum magnets.
