Guided-mode resonances in multimode planar periodic waveguides
Chinese Optics Letters, Vol. 8, Issue 6, pp. 557-559 (2010)
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Abstract
Using the effective medium theory and the waveguide eigenvalue equation, we design a multimode planar periodic waveguide. When a plane wave illuminates the grating at the designed angle and wavelength, more than one leaky modes are excited coincidentally. Then the reflection efficiency around this designed angle and wavelength is investigated using a rigorous coupled wave analysis formulation and a gap of reflection peaks is found. Electric field distributions reveal that this high reflectivity gap is due to the coupling between these two coincidentally excited leaky modes.
© 2010 Chinese Optics Letters
OCIS Codes
(260.5740) Physical optics : Resonance
(050.6624) Diffraction and gratings : Subwavelength structures
(230.7408) Optical devices : Wavelength filtering devices
Citation
Tianyu Sun, Yunxia Jin, Jianda Shao, and Zhengxiu Fan, "Guided-mode resonances in multimode planar periodic waveguides," Chin. Opt. Lett. 8, 557-559 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-6-557
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