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Optical platefor sale

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I have heard there are none right now...but i saw something that said something about 100% reflection. Forgotten completely. sorry.

Optical platealuminum breadboard

But i have heard it's theoretically not possible to have surface that's 100% reflective. I don't believe that. Would it be possible to reflect light without absorbing or normal reflection like using some technique to bend it 180degrees.

OpticalBreadboardPlate

In Misha Lukin’s group at Harvard, they developed a technique called atomic array. Generalizing it to 2D, another PI at Harvard Susan yellin proposed that using this 2D array there could be a perfect mirror.

Well there is one well known situation where 100% reflectance does occur; and that is the case of Total Internal Reflection (TIR). It occurs when light in a medium with refractive index (N1) , impinges on a boundary with a second medium of refractive index (N2) where N2 < N1 and the angle of incidence on the boundary is greater than arcsin(N2/N1) , which is called the critical angle. It derives naturally from Snell's law of refraction: N1Sin(I1) = N2sin(I2) and Sin (I2) cannot exceed (1).

Classically you have been given references in the other answer. After all the black body simulation as a cavity filled with photons assumes total reflection.

b)that reflections are the quantum mechanical solution of the electromagnetic interaction with the electrons on the shells of the mirror. By nature, when one has an interaction at the quantum mechanical level there is always a partial solution giving other results than total reflection. These will be with very low probability, but considering you are thinking of trapping light for at least 24 hours this means there are zillions of interactions and then the absorption probability adds up.

Optical platealuminum

Solid aluminum optical plate could provide a solid installation platform for optical experiment, medical experiment, precision instrument production test, aerospace experiment and so on.

Mirrors and reflections though, when one is talking of limits, as is the case of total reflection, are quantum mechanical objects.

So it all depends on probabilities and time constants. My calculation tools are rusty but I guess that even with a clever focusing device the photons would be absorbed within nanoseconds, raising the temperature of the walls of your cavity.