Polarisation project for advanced higher physics

Hi, I'm starting to research a project for advanced higher physics. i've chosen to investigate polarisation. However, I can only find two clear experiments (brewsters angle and malus law). I was wondering if anyone has done a project on this before and could tell me what they felt about their other experiment

its been like what 3 years since the last batch of projects so good luck looking for help, try youtube i remeber finding a dude doing experiments for AH physics

i know!! it’s a shame they put it back in so suddenly— i don’t have much practical experience as my school did not very much practical in N5 & Higher.
I’ve had a look around youtube & i’ve found a few things but they’ve all been vetoed by the department
im sure i’ll find something