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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Solution to causality paradox upon total reflection in optical planar waveguide
Xiangmin Liu1, Zhuangqi Cao, Pengfei Zhu
1Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. liuxy424@sjtu.edu.cn
Abstract:
A dispute about the existence of an additional time associated with the Goos-Hänchen shift has recently arisen. By analyzing light propagation in an optical planar waveguide with both the zigzag-ray model and the electromagnetic theory, we show in this paper that the Goos-Hänchen time really exists, and the total time delay upon total reflection is the sum of the group delay time and the Goos-Hänchen time. The causality paradox of total reflection of a TM wave upon an ideal nonabsorbing plasma mirror is also solved with the consideration of a negative Goos-Hänchen shift.
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