Can we capture light?

Question

It might sound awkward but can we capture light inside a kaleidoscope or any closed surface whose inner surface can reflect light Consider two cases

1. When light is perfectly reflected

2. When light is not perfectly reflected

Answer 1

1: If the light is inside a cavity with perfect reflection, we've, in the classical sense, captured light. We can not observe it however without "consuming it". In the quantum mechanical sense, it is not captured since there are more details to the matter than just reflection.

2: Related to the above answer, if we've imperfect reflection, the photons are transmitted somewhere and we would not have trapped all the photons