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18 April 2024 |
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Light-controlled skyrmions and torons as reconfigurable particles | | Hayley R. O. Sohn
; Changda D. Liu
; Ivan I. Smalyukh
; | | Date: |
17 Oct 2019 | | Abstract: | Topological solitons, such as skyrmions, arise in field theories of systems
ranging from Bose-Einstein condensates to optics, particle physics, and
cosmology, but they are rarely accessible experimentally. Chiral nematic liquid
crystals provide a platform to study skyrmions because of their natural
tendency to form twisted structures arising from the lack of mirror symmetry at
the molecular level. However, large-scale dynamic control and technological
utility of skyrmions remain limited. Combining experiments and numerical
modeling of chiral liquid crystals with optically controlled helical pitch, we
demonstrate that low-intensity, unstructured light can control stability,
dimensions, interactions, spatial patterning, self-assembly, and dynamics of
these topological solitons. | | Source: | arXiv, 1910.8045 | | Services: | Forum | Review | PDF | Favorites | |
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