The mechanism of the polarization dependence of the optical transmission in subwavelength metal hole arrays

Details The mechanism of the polarization dependence of the optical transmission in subwavelength metal hole arrays The mechanism of the polarization dependence of the optical transmission in subwavelength metal hole arrays

2011-09-05

arxiv.org/abs/1109.0846v1

J. Phys.: Condens. Matter 23 (2011) 015005

Physics

Optics

34 pages, 7 figures

Scientific paper

10.1088/0953-8984/23/1/015005

We investigate the mechanism of extraordinary optical transmission in subwave-length metal hole arrays. Experimental results for the arrays consisting of square or rectangle holes are well explained about the dependence of transmission strength on the polarization direction of the incident light. This polarization dependence occurs in each single-hole. For a hole array, there is in addition an interplay between the adjacent holes which is caused by the transverse magnetic field of surface plasmon polariton on the metal film surfaces. Based on the detailed study of a single-hole and two-hole structures, a simple method to calculate the total tranmissivity of hole arrays is proposed.

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