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http://dx.doi.org/10.7236/JIIBC.2017.17.1.231

Analysis of Resonance Scattering Characteristics by Multi-layered Dielectric Gratings  

Ho, Kwang-Chun (Dept. of ICs Engineering, Hansung University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.17, no.1, 2017 , pp. 231-236 More about this Journal
Abstract
The space harmonics generated by a plane-wave incident upon a multi-layered dielectric grating can undergo strong resonance scattering variations known as GMR(guided-mode resonance). To clarify these effects, we examine the field propagation and dispersion curve inside the grating region by using a rigorous equivalent transmission-line theory(RETT). The results show that, at the peak of a scattering resonance, the reflected mode is almost identical to a leaky wave that can be supported by the grating structure. Thus, we confirm and generalize previous research that has occurred GMR effect associated with the free-resonant character of leaky waves at multi-layered dielectric gratings. Quantitative simulation results illustrating the behavior of typical gratings are given, and the special case of normal incidence is discussed for TM mode.
Keywords
Diffraction Grating; Equivalent Network; Guided-Mode Resonance; Leaky-Wave;
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Times Cited By KSCI : 1  (Citation Analysis)
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