As part of a course in physics teaching, I am developing a small curriculum that will teach (the basics of) quantum mechanics to high school students.
I need a simple way to show the quantization of light. My uni lecturer suggested that low-light photography shows grainy pictures because of individual photons hitting the sensors in discrete points, which shows that they are not diffuse waves.
I have been unable to find anything confirming this on the internet, much less a picture or even better video showing the effect.
I suppose I'm looking for something similar to this video of Tonomura's experiment on the quantization of electrons.
Thank you for your time.
EDIT: I am not actually looking for the equipment. Mere footage of the equipment would be more than adequate. (Just like I won't try to replicate Tonomura in a classroom, but I will show its video)