Fig. 1: DUV modulation based on 2D CTO LCs with low Co doping.
From: Deep ultraviolet hydrogel based on 2D cobalt-doped titanate

a Schematic of the optical setup for magneto-optical measurements. b Photographs of the patterned paper precoated with UV-excitable purple phosphor in the magnetic range of 0 T to 0.8 T, with an interval of 0.2 T (white arrow represents the transmission axis of the polarizer). The wavelength of DUV light is set as 303 nm. c Intensity of transmitted DUV light versus magnetic field in a forward and reverse scanning. Insets: polarizations of the transmitted DUV light without and with a magnetic field of 0.8 T. d Optical transmittance spectrum of non-polarized light through the aqueous suspension of 2D CTO. e DUV modulation by controlling the distance between permanent magnets. f Magnetization measurements at 10 K in the magnetic field parallel (in-plane) and perpendicular (out-of-plane) to the 2D CTO film produced by vacuum filtration of CTO suspension