Hey thanks for the reply! I’ll admit that paper lost me pretty quickly, so I am probably missing a subtle point. But it feels deeply unintuitive since frequency and wavelength are just two different ways of describing the same physical quantity.

So if I have a given source of photons, how the heck does the color of photons delivering most cumulative power change whether I choose to describe that color based on its wavelength or it’s frequency?

Is there an analogue to something like sound energy or is this quantum physics weirdness?

(These are semi rhetorical questions… I’m not expecting you to explain unless you really feel like it 😀)