A I Rahachou and I V Zozoulenko 2007 J. Opt. A: Pure Appl. Opt. 9 265 doi:10.1088/1464-4258/9/3/010
A I Rahachou and I V Zozoulenko
Show affiliationsWe study the propagation of TM- and TE-polarized light in two-dimensional arrays of silver nanorods of various diameters in a gelatin background. We calculate the transmittance, reflectance and absorption of arranged and disordered nanorod arrays and compare the exact numerical results with the predictions of the Maxwell–Garnett effective-medium theory. We show that interactions between nanorods, multipole contributions and formations of photonic gaps affect strongly the transmittance spectra that cannot be accounted for in terms of the conventional effective-medium theory. We also demonstrate and explain the degradation of the transmittance in arrays with randomly located rods as well as the weak influence of their fluctuating diameter. For TM modes we outline the importance of the skin effect, which causes the full reflection of the incoming light. We then illustrate the possibility of using periodic arrays of nanorods as high-quality polarizers.
Issue 3 (March 2007)
Received 1 November 2006, accepted for publication 25 January 2007
Published 14 February 2007
A I Rahachou and I V Zozoulenko 2007 J. Opt. A: Pure Appl. Opt. 9 265
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