Acta Optica Sinica, Volume. 28, Issue 4, 768(2008)
Enhancement of Goos-Hnchen Shift in Prism-Film Coupling Configuration
Prism-film coupling configuration is a two-prism configuration with one prisms coated with a thin dielectric film. This structure plays an important role in the field of optical signal transmission. The Goos-Hnchen (G-H) shift of reflected and transmitted light beams in this configuration is theoretically investigated by stationary-phase approach. The result shows that the G-H shifts of both the reflected and transmitted light beams oscillate with the increase of the thickness of the thin dielectric film and the angle of incidence. The resonant peaks of reflection G-H shift can be negative as well as positive. The magnitude of the resonant G-H shifts can reach two orders of the wavelength. The above property of the G-H shift modulation may lead to potential applications in new types of optical sensors and devices.
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Ge Guoku, Li Chunfang, Duan Tao, Zhang Jiyue. Enhancement of Goos-Hnchen Shift in Prism-Film Coupling Configuration[J]. Acta Optica Sinica, 2008, 28(4): 768