Fig. 3: Performance characterization of the terahertz isolator.
From: On-chip terahertz isolator with ultrahigh isolation ratios
a Transmission spectra of the chip when B = 0.68 T, and the isolation ratios are defined as HCW–HCCW; the positive isolation ratio indicates that the loss in CW direction is smaller while the negative isolation ratio refers to the larger loss in CW direction. b Measured maximum isolation ratios of positive and negative states with the change of the magnetic field. The error bars represent the standard deviations of three measurements of isolation ratios. c Isolation spectra of the chip in the change of the magnetic field.
