Tunable emissions of orbital-angular-momentum beams (IMAGE)
Caption
a, b, The electrically tunable synthetic magnetic field allows Rabi transition between different oscillatory modes: a, V = ±50 V (trajectories in blue and purple); b, V = ±200 V (trajectories in blue and purple). c, The spinor moves slowly from point A to its initial position by gradually sweeping the voltage from 0 to 1000 V, see blue curve; while altering the voltage sign producing a symmetric trajectory (purple line). d, The same as described in c but in a different case of beam width. e, f, The emitted topological charge as a function of voltage after a coupling length z =30 mm, in two different cases of beam widths.
Credit
by Guohua Liu, Xiliang Zhang, Xin Zhang, Yanwen Hu, Zhen Li, Zhenqiang Chen, and Shenhe Fu
Usage Restrictions
Credit must be given to the creator.
License
CC BY