The Gouy phase shift of optical beams in anisotropic indefinite metamaterials displays extraordinary characteristics because of the presence of anisotropic magnetic and electric responses. We propose a simple interpretation of these characteristics from the unusual dispersion relation of the optical waves in the metamaterials, which influences the expectation value of the axial propagation constant of the focused beam.
© 2012 Optical Society of America
Original Manuscript: August 6, 2012
Revised Manuscript: August 26, 2012
Manuscript Accepted: August 28, 2012
Published: September 21, 2012
Hai-Xu Cui, Fan Ye, Teng-Fei Li, Qing-Hua Guo, and Jing Chen, "Gouy phase of optical beams in anisotropic indefinite metamaterials," Opt. Lett. 37, 4041-4043 (2012)