Semiconductor Physics, Quantum Electronics & Optoelectronics. 2017. V. 20, N 1. P. 085-090.

Resonance phenomena in one-dimensional grating-based structures
I.Ya. Yaremchuk1, V.M. Fitio1, Ya.V. Bobitski1,2

1Department of Photonics, Lviv Polytechnic National University, 12, Bandera str., 79013 Lviv, Ukraine Phone: (8-032)-258-25-81, e-mail:
2Faculty of Mathematics and Natural Sciences, University of Rzeszow, Pigonia Str.1, 35959 Rzeszow, Poland

Abstract. Enhanced optical transmission through metallic 1-D grating-based structures has been studied using the rigorous coupled wave analysis. The results have shown that optical transmission is determined by waveguide properties of the grating slit, and there is a minimum width of slit for TE polarization, when high transmission occurs due to waveguide effect. In contrast, this limitation doesn’t exist for TM polarization, and extraordinary transmission is obtained at the sub-wavelength slit. As a result, high transmission is reached due to resonance of electromagnetic field inside the grating slit.

Keywords: enhancement of optical transmission, grating, waveguide and surface plasmon-polariton resonance.

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