Fig. 2: Polarization optics.
From: Covalent-bonding chiroptical network structures for circular polarization differential imaging
a Schematic illustration for the conversion of sustainable light generated from SLG into spirally polarized light via the OHM. b Normalized circularly polarized luminescence spectra. c–e Variation in glum values as a function of wavelength of CBCN structures corresponding to (b). f–h Dependence of glum values on applied strain. i Schematic representation of the helical structure during deformation. j Atomic force microscope height images of the OHM layer in the CBCN structure with different stretch ratios (ε = 0% and 50%, respectively). Scale bars, 10 μm. k Two-dimensional wide-angle X-ray scattering patterns of the CBCN structure subjected to different stretching conditions. The color scales represent “Intensity (arb. units)”. l Types of deformation accommodated by the CBCN structure. m Brightness difference of the obtained circularly polarized light through L- and R-CPFs under different deformation corresponding to (l). Scale bars, 1 cm.
