dielectric (version 0.2.3)

epsAu: epsAu

Description

permittivity gold

Usage

epsAu(wavelength, epsilon.infty = 1.54, lambda.p = 177.5, mu.p = 14500, A1 = 1.27, phi1 = -pi/4, lambda1 = 470, mu1 = 1900, A2 = 1.1, phi2 = -pi/4, lambda2 = 325, mu2 = 1060)

Arguments

wavelength

wavelength in nm

epsilon.infty

background dielectric constant

lambda.p

plasma wavelength

mu.p

damping constant

A1

A1

phi1

phi1

lambda1

lambda1

mu1

mu1

A2

A2

phi2

phi2

lambda2

lambda2

mu2

mu2

Value

data.frame

Details

analytical dielectric function of Au (Drude model + interband transitions)

References

Principles of surface-enhanced Raman spectroscopy and related plasmonic effects Eric C. Le Ru and Pablo G. Etchegoin, published by Elsevier, Amsterdam (2009).

See Also

Other user_level permittivity: epsAg

Examples

require(dielectric) ; data(AuJC)
wvl <- seq(300, 900)
gold <- epsAu(wvl)

matplot(gold$wavelength, cbind(Re(gold$epsilon), Im(gold$epsilon)),
t="l", lty=1, xlab = "wavelength / nm", ylab = "Dielectric function")
matpoints(AuJC$wavelength, cbind(Re(AuJC$epsilon), Im(AuJC$epsilon)), pch=1)