Research Papers

Suppression of losses in negative refractive index metamaterials by means of bichromatic parametric irradiation

[+] Author Affiliations
Adil-Gerai Kussow

University of Massachusetts Lowell, Department of Physics, Lowell, Massachusetts 01854

Alkim Akyurtlu

University of Massachusetts Lowell, Electrical and Computer Engineering Department, Lowell, Massachusetts 01854

J. Nanophoton. 6(1), 063506 (Mar 23, 2012). doi:10.1117/1.JNP.6.063506
History: Received September 13, 2011; Revised December 22, 2011; Accepted December 27, 2011
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Abstract.  If two parametrically-coupled fields, with the frequency of the probe p wave twice the frequency of the support s wave, are applied to a metal plasma, the non-linearity of the Boltzmann equation affects the permittivity. Based on the solution of the Boltzmann equation for the bichromatic problem, an analytical expression for the permittivity was derived. The amplitudes and the relative phase of the p and s waves can be adjusted to suppress the dielectric loss to almost zero within a narrow frequency band. If this frequency band overlaps with a negative-refractive-index band of a composite metamaterial, which contains a metallic component, the optical losses can be reduced by a factor of 30, with a figure of merit exceeding 100. An isotropic metamaterial comprising spherical Au and SiC nanoparticles can show that effect.

© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Adil-Gerai Kussow and Alkim Akyurtlu
"Suppression of losses in negative refractive index metamaterials by means of bichromatic parametric irradiation", J. Nanophoton. 6(1), 063506 (Mar 23, 2012). ; http://dx.doi.org/10.1117/1.JNP.6.063506


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