Total reflection cannot occur with a negative delay time
Resch K J, Lundeen Jeff S, Steinberg A M
IEEE Journal of Quantum Electronics(2001)794 - 799
Citation
Resch, K. J., Lundeen, J. S., & Steinberg, A. M. (2001). Total reflection cannot occur with a negative delay time. IEEE Journal of Quantum Electronics, 37(6), 794–799. https://doi.org/10.1109/3.922777