Spatially controllable and mechanically switchable isomorphous organoferroeleastic crystal optical waveguides and networks

Subham Ranjan, Avulu Vinod Kumar, Rajadurai Chandrasekar () and Satoshi Takamizawa ()
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Subham Ranjan: Kanazawa-ku
Avulu Vinod Kumar: University of Hyderabad
Rajadurai Chandrasekar: University of Hyderabad
Satoshi Takamizawa: Kanazawa-ku

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract The precise, reversible, and diffusionless shape-switching ability of organic ferroelastic crystals, while maintaining their structural integrity, positions them as promising materials for next-generation hybrid photonic devices. Herein, we present versatile bi-directional ferroelasticity and optical waveguide properties of three isomorphous, halogen-based, Schiff base organic crystals. These crystals exhibit sharp bending at multiple interfaces driven by molecular movement around the CH = N bond and subsequent 180° rotational twinning, offering controlled light path manipulation. The ferroelastic nature of these crystals allowed the construction of robust hybrid photonic structures, including Z-shaped configurations, closed-loop networks, and staircase-like hybrid optical waveguides. This study highlights the potential of shape-switchable organoferroelastic crystals as waveguides for applications in programmable photonic devices.

Date: 2024
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DOI: 10.1038/s41467-024-51504-5

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