The theory of electromagnetic Bloch waves in periodic stratified media is applied to the problems of birefringence and group velocity in these media. The relevance of periodic media to phase matching in nonlinear mixing experiments and to laser action in the x-ray region is discussed.
© 1977 Optical Society of America
Amnon Yariv and Pochi Yeh, "Electromagnetic propagation in periodic stratified media. II. Birefringence, phase matching, and x-ray lasers," J. Opt. Soc. Am. 67, 438-447 (1977)