Dil fridge will get a bit hot with its clothes off like that
Really hard to tell which it could be.
I believe that still wouldn’t work because optical part of the spectrum carries thermal energy too.
Optical photons don't carry an impossible amount of energy: I've seen liquid helium through a small coated window. The window was there for ion beam purposes, not "entertaining the grad student", and it was a big element in the heat budget!