Analytical expression of giant Goos-Hanchen shift in terms of proper and improper modes in waveguide structures with arbitrary refractive index profile

作者：Alishahi Fatemeh; Mehrany Khashayar^*

来源：Optics Letters, 2010, 35(11): 1759-1761.

DOI：10.1364/OL.35.001759

We analytically relate the giant Goos-Hanchen shift, observed at the interface of a high refractive index prism and a waveguide structure with an arbitrary refractive index profile, to the spatial resonance phenomenon. The proximity effect of the high refractive index prism on modal properties of the waveguide is discussed, and the observed shift is expressed in terms of proper and improper electromagnetic modes supported by the waveguide with no prism. The transversely increasing improper modes are shown playing an increasingly important role as the high refractive index prism comes closer to the waveguide.

• 出版日期2010-6-1