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epsAu

PURPOSE ^

Returns the wavelength-dependent relative dielectric function of gold (Au)

SYNOPSIS ^

function epsAu = epsAu(lambda)

DESCRIPTION ^

 Returns the wavelength-dependent relative dielectric function of gold (Au)
 This function uses the analytical expression given in Eq. (E.2).
 The exp(-i omega t) convention is assumed.

 Parameters:
 - lambda: scalar, vector, or matrix
           wavelengths in NANOMETERS (nm)
 
 Returns:
 - epsAu: same size as lambda
          epsilon(lambda) as a complex number.

 This file is part of the SPlaC v1.0 package (copyright 2008)
 Check the README file for further information

EXAMPLE OF OUTPUT ^

Example figure output

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 % from Eq. E.2
0002 eps_infty = 1.54;
0003 lambda_p = 177.5;
0004 mu_p = 14500.0;
0005 A1=1.27;
0006 lambda1=470.0;
0007 mu_p1=1900.0;
0008 A2=1.1;
0009 lambda2=325.0;
0010 mu_p2=1060.0;
0011 phi=-pi/4;
0012  
0013 epsAu = eps_infty * (1 - 1 ./ (lambda_p.^2 *( (1./lambda).^2 + i./(mu_p.*lambda))))...
0014     + A1 / lambda1 *(exp(i*phi)./(1/lambda1-1./lambda-i/mu_p1)+exp(-i*phi)./(1/lambda1+1./lambda+i/mu_p1))...
0015     + A2 / lambda2 *(exp(i*phi)./(1/lambda2-1./lambda-i/mu_p2)+exp(-i*phi)./(1/lambda2+1./lambda+i/mu_p2));
0016

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