Vinod Kumar Avulu, Rohullah Mehdi, Chosenyah Melchi, Ravi Jada, Venkataramudu Uppari, Chandrasekar Rajadurai
Advanced Photonic Materials and Technology Laboratory, School of Chemistry and Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, Telangana, India.
Angew Chem Int Ed Engl. 2023 Apr 17;62(17):e202300046. doi: 10.1002/anie.202300046. Epub 2023 Mar 17.
Visible light guiding optical fibers with underwater operational capability are highly desired for subaquatic communication and sensing technologies. Herein, we present mechanically flexible, blue-violet fluorescent (4,4'-bis(2,6-di(1H-pyrazol-1-yl)pyridin-4-yl)biphenyl) (BPP) crystal waveguides with high-aspect ratio. These milli-meter-long BPP crystals guide light actively and passively in ambient and underwater conditions demonstrating their amphibian-like character. Due to the crystal's high flexibility, the optical fiber's output light direction in submerged and ambient states can be altered mechanically for high-precision lighting and sensing applications. The development of such multi-environment-compatible and mechanically flexible organic optical fibers acting as sensing materials possess enormous potential for short-range underwater photonic technologies.
具有水下操作能力的可见光导光纤对于水下通信和传感技术来说是非常需要的。在此，我们展示了具有高纵横比的机械柔性蓝紫色荧光（4,4'-双（2,6-二（1H-吡唑-1-基）吡啶-4-基）联苯）（BPP）晶体波导。这些毫米长的BPP晶体在环境和水下条件下都能主动和被动地导光，展现出它们类似两栖动物的特性。由于晶体具有高柔韧性，光纤在浸没和环境状态下的输出光方向可以通过机械方式改变，以用于高精度照明和传感应用。这种作为传感材料的多环境兼容且机械柔性的有机光纤的开发，对于短程水下光子技术具有巨大潜力。
