Amplified Total Internal Reflection at the Surface of Gain Medium -- Abstract Only

Total Internal Reflection (TIR) is the phenomenon whereby a light wave incident on a boundary is completely reflected when the wave’s incidence angle exceeds a critical angle, θc . For decades there has been debate about whether amplified TIR from a medium exhibiting optical gain is possible, and desire for a theory to explain it. Authors have suggested theories both in favor and in doubt of the phenomenon’s existence, and experimental evidence has arose supporting the existence and seemingly simultaneously contradicting proposed theoretical models.