Use of near-infrared sensors?

Hi all,

I'm a Postgrad student in the UK working on developing new infrared detectors. I want to focus my research on producing something actually useful to society and am looking for the insight of people who use this technology.

I know of a few areas which these are used for (LiDAR, telecoms, spectroscopy) but want to find out other uses people have found for this technology. Below is a six question survey I'm running to get feedback, alternatively I'd love to have a discussion here!

https://www.surveymonkey.co.uk/r/ZCKK8T5

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