title: Phase shift at a turning point in a planar optical waveguide.
abstract: We present a novel matrix approach to proving that the phase shift at a turning point in a planar optical wave-guide is exactly equal to pi rather than to pi/2 or to some other value. We also show the existence of phase contributions from reflected subwaves, which to our knowledge have never been taken into account previously.
authors.affiliation: Molecular Photonics Laboratory, Institute of Optics and Photonics, Shanghai Jiao Tong University, China. Zhuangqi_cao@263.net
authors.forename: Z
authors.initials: Z
authors.lastname: Cao
authors.forename: Q
authors.initials: Q
authors.lastname: Liu
authors.forename: Y
authors.initials: Y
authors.lastname: Jiang
authors.forename: Q
authors.initials: Q
authors.lastname: Shen
authors.forename: X
authors.initials: X
authors.lastname: Dou
authors.forename: Y
authors.initials: Y
authors.lastname: Ozaki