Comment on ``Photonic tunneling time in frustrated total internal reflection''
Abstract
This is a comment on Stahlhofen's paper [Phys. Rev. A 62, 012112 (2000)]. It is shown by stationaryphase theory that the GoosHänchen shift in frustrated total internal reflection (FTIR) is not independent of the group delay (or phase time in the literature). The group delay involves the contribution of GoosHänchen shift and is always larger than zero in FTIR. It is also shown that the group delay in the twodimensional (2D) optical FTIR can be written in the same form as that of the group delay in the 1D quantum tunneling in the sense that the group delay is the derivative of the total phase shift with respect to the angular frequency.
 Publication:

Physical Review A
 Pub Date:
 June 2002
 DOI:
 10.1103/PhysRevA.65.066101
 Bibcode:
 2002PhRvA..65f6101L
 Keywords:

 03.65.Ta;
 73.40.Gk;
 42.25.Gy;
 Foundations of quantum mechanics;
 measurement theory;
 Tunneling;
 Edge and boundary effects;
 reflection and refraction