Switching Capability of Double-Sided Grating with Horizontal Shifts

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Electrical and Computer Engineering
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Iizuka, Hideo
Fujikawa, Hisayoshi
Sato, Kazuo
Takedo, Yasuhiko
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A TiO2 grating beam splitter on the SiO2 layer is designed using the modal analysis. normal incident light couples to the –1st/+1st-order transmission diffraction with a 49.6% efficiency for each and with a 50º refraction angle that is larger than the critical angle for the SiO2 interlayer is sandwiched between two gratings. The finite-integration-technique investigation shows its switching capability due to the quarter-period shift between the gratings, with the zeroth-order transmission smaller than 5% for the "off" state and larger than 95% for the "on" state from 553 to 654 nm wavelength regime.

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2010-08-04
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Suggested Citation: Iizuka, H., N. Engheta, H. Fujikawa, K. Sato and Y. Takeda. (2010). "Switching Capability of Double-Sided Grating with Horizontal Shifts." Applied Physics Letters. 97, 053108. © 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://dx.doi.org/10.1063/1.3476349
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