epsAu: epsAu

In nano-optics/dielectric: Defines some physical constants and dielectric functions commonly used in nano-optics

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

Details

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

Value

data.frame

Author(s)

baptiste Auguie

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)

nano-optics/dielectric documentation built on Aug. 30, 2022, 3:13 a.m.