A Novel Theory for the Scattering of P-Polarized Hermite-Gaussian Electromagnetic Beams by a Double Metallic Nano-Slit


  •  I. Guzman-Montano    
  •  G. Montiel-Gonzalez    
  •  J. Sumaya-Martinez    
  •  P. Rosendo-Francisco    
  •  J. Reyes-Gomez    

Abstract

We present a rigorous theory for oblique incident Hermite-Gaussian beams, diffracted by two optical nano-slits of width l and separation d, in a thick metallic screen for the case of polarization TM (P). The far field spectra as a function of several opto-geometrical parameters, wavelength λ , slit width l, separation d , incidence angle θi  and Hermite order m  is analyzed. In the vectorial diffraction region given when λ /l >0.2, where l is the incident wavelength and as a function of the separation between slits d; we have numerically analyzed: the far field spectra, the energy diffracted along the incident beam direction Ei , and the validity of an approximate diffraction (scalar) property, namely Ei= Ntao/lambda .
 



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  • Issn(Print): 1916-9639
  • Issn(Onlne): 1916-9647
  • Started: 2009
  • Frequency: bimonthly

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