Question

Is there spatial data loss in light passing through transparent crystal?

Answer 1

Yes, what you need is for the light to be totally internally reflected at some point. You can't achieve this just with refraction because refraction can only make the incoming ray parallel to the interface and not bend it back. So you need to reflect the ray at some point. For this you need the incoming angle (angle to the normal) at one of your sheet boundaries to be greater than the critical angle:

θi>arcsin(n2n1)

So you need to choose the upper sheets to deflect the light ray towards the horizontal, i.e. to increase the incoming angle, then one last sheet to totally internally refract it.

However note that you still can't achieve a complete 180° turnaround. That's because if the incoming light is exactly normal to your sheets of glass it won't be refracted at all. You need the incoming angle of incidence to be great than zero, and that means the outgoing angle will also be greater than zero. Your turnaround will always be less than 180°.

Answer 2

Hola mate !! ✨✨

here's your answer...⬇️⬇️

Spatial data loss is the loss in energy of light or wave when it gets reflected or refracted .

$<b>In a transparent crystal , we know that there are many surfaces. The light gets reflected as well as refracted through these surfaces . In doing so , the molecules of crystal get excited and absorb some of the light energy. Hence , responsible for the spatial data loss.</b>$

hope it helps ! ❤️❤️