Abstract
Orthogonal manipulation of multi-dimensional parameters of light is urgently desired in high-speed processing and reliable transmission of massive information. In article number 2201088, Zhi-Gang Zheng, Yan-Qing Lu, Wei Hu and co-workers present a heliconical cholesterics-based spatial phase modulator with electrically customizable working frequency. The device simultaneously manipulates the spatial phase and wavelength/frequency of light via photoaligning the initial orientation of the liquid crystal and electrically varying the pitch of the heliconical superstructure, respectively. It supplies a platform for multidimensional planar optics that may upgrade existing optical informatics.
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