A quantum analogue of this effect was discovered to cause different time delays resulting in slightly different positions after passing a potential well in spinor neutrons by de Haan, et al in 2010. When polarized light undergoes this effect, light shifts perpendicular to the direction of propagation and the occurrence of this effect results in imaginary values in the coefficients derived from Fresnel's formulas. Near field standing waves that form after undergoing this effect decay exponentially as they are not allowed to transport energy. Those waves are called evanescent waves, which can be coupled in the frustrated form of this effect that is analogous to quantum tunneling. The value above, which this effect will occur is given by the arcsine of the ratio of the indices of refraction of the media between which light undergoing this effect is passing. The operational principle behind 
A quantum analogue of this effect was discovered to cause different time delays resulting in slightly different positions after passing a potential well in spinor neutrons by de Haan, et al in 2010. When polarized light undergoes this effect, light shifts perpendicular to the direction of propagation and the occurrence of this effect results in imaginary values in the coefficients derived from Fresnel's formulas. Near field standing waves that form after undergoing this effect decay exponentially as they are not allowed to transport energy. Those waves are called evanescent waves, which can be coupled in the frustrated form of this effect that is analogous to quantum tunneling. The value above, which this effect will occur is given by the arcsine of the ratio of the indices of refraction of the media between which light undergoing this effect is passing. The operational principle behind optical fibers, for 10 points, name this effect that occurs when light strikes a boundary past the critical angle that causes complete reflection.
A quantum analogue of this effect was discovered to cause different time delays resulting in slightly different positions after passing a potential well in spinor neutrons by de Haan, et al in 2010.
total internal reflection [accept Goos-Hanchen effect before mention; accept TIR; prompt on partial answers]