We derive general reciprocity relations that are applicable to a large class of one-dimensional stratified systems. These results reveal clearly the role of absorption and spatial symmetry in the nonreciprocity of reflection observed in a recent experiment by Armitage <i>et al</i>. [Phys. Rev. B <b>58</b>, 15, 376 (1998)]. We also present examples of structures for which such nonreciprocal effects can be significant.
© 2002 Optical Society of America
G. S. Agarwal and S. Dutta Gupta, "Reciprocity relations for reflected amplitudes," Opt. Lett. 27, 1205-1207 (2002)