Fig. 2: Electrical control of SHG domain contrast. | Nature Communications

Fig. 2: Electrical control of SHG domain contrast.

From: Electric-field-enhanced second-harmonic domain contrast and nonreciprocity in a van der Waals antiferromagnet

Fig. 2

a, b Co- (\({{\rm{P}}}\parallel {{\rm{A}}}\)) and cross- (\({{\rm{P}}}\perp {{\rm{A}}}\)) polarization configurations (P: polarizer, and A: analyzer). Middle columns in (a, b) display SHG images with controlled domain contrast acquired at 10 K under the change of applied electric fields. Scalebar: 10 μm (shared by all images). Corresponding SHG rotation anisotropy (SHG-RA) patterns for Domains A and B are shown on the right and left sides of the images, respectively. Opposite electric fields yield contrary effects on the same domain, while the same field results in opposing effects on different domains, as indicated by the gray arrows, for both polarization configurations.

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