Extended Data Fig. 1: Experimental geometries of TrARPES measurements.
From: Pseudospin-selective Floquet band engineering in black phosphorus
a–d, Schematics for four different combinations of pump polarizations and measurement directions along the AC or ZZ directions. The blue line indicates the ARPES measurement direction and the red arrow represents the pump polarization. The black ellipses represent the anisotropic electronic pocket of black phosphorus.
