481THz lightbeam experiment?

Our local windmill. Me seated. XYL on RHS.

It is getting close to the time when I fancy some field work! My first experiment will be to detect QRSS 481THz (red light) at some distance by reflection off our local windmill. It will need my XYL to accompany me as it will involve night driving but it will either work or not. This will be my first field test in a long long time.

This picture was taken in 2014 and the laurel hedge has grown quite a bit since. Look at a later post to see how it looks now.
Small steps...