Capturing Light with a Theoretical Mirror Sphere: Observable? Possible?

[BadSector]

What would happen if: I had a sphere produced from a theoretical perfectly reflective one-way-mirror(reflective on the inside) and a shone a light into it?

Would the light accumulate inside the sphere for a noticeable period of time? Would it be observable? Could light be captured this way?

Don't be too harsh if this sounds totally ridiculous.

 

[cristo]

How do you intend shining a light into a solid sphere from the outside?? surely the reverse of a perfectly reflective mirror must be opaque?

 

[KleptoPanda]

I think he means a literal one way mirror, much like the "sail" on the proposed nuclear explosion powered spacecraft that passes gamma radiation one way, but not the other. So a perfect one way mirror would be perfectly transparent in one direction and perfectly reflective in the other.

 

[Mk]

Luckily, we've had this thread a few times before.

Here's one with good answers!
https://www.physicsforums.com/showthread.php?t=90267