Light transmitted through wood-based optical fibre

Light has travelled through a wood-based optical fibre, offering the possibility of biodegradable Internet of Things (IoT) sensors or simple moisture monitors.

Researchers at VTT made the new fibre, which has a core of wood cellulose modified with ionic solvents developed at the Finnish research centre. The core has a cladding of cellulose acetate.

Light can travel through the fibre because the cladding has a lower index of refraction than the core. The rays are reflected back into the core from the interface of the core and the cladding.

To find out more about this article please visit:  https://www.imeche.org/news/news-article/light-transmitted-through-wood-based-optical-fibre   

Resources:  https://www.imeche.org/

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