Funding for this research was provided by:
Faraday Institution, grant reference: FIRG001
Faraday Institution, grant reference: FIRG001 Winton Programme for the Physics of Sustainability
Received: 16 May 2021
Accepted: 4 March 2022
First Online: 28 March 2022
: EM, JJB, CPG, and TGE are applicants and inventors on a patent on the fibre-optic sensing apparatus and method discussed in the manuscript, patent application number: P/80651.GB01/SG (pending). The remaining authors declare no competing interests.