Struct DrudeModel 

pub struct DrudeModel {
    pub eps_inf: f64,
    pub omega_p: f64,
    pub gamma: f64,
}

Drude model for the frequency-dependent permittivity of a free-electron metal.

ε(ω) = ε∞ − ωp² / (ω² + iγω)

Fields

eps_inf: f64

High-frequency (background) permittivity ε∞.

omega_p: f64

Plasma frequency ωp [rad/s].

gamma: f64

Collision (damping) rate γ [rad/s].

Implementations

impl DrudeModel

pub fn new(eps_inf: f64, omega_p: f64, gamma: f64) -> Self

Construct a Drude model from material parameters.

pub fn gold() -> Self

Typical Drude parameters for gold at optical frequencies.

pub fn silver() -> Self

Typical Drude parameters for silver.

pub fn eps_real(&self, omega: f64) -> f64

Real part of the complex permittivity ε’(ω).

pub fn eps_imag(&self, omega: f64) -> f64

Imaginary part of the complex permittivity ε’’(ω) (sign convention: -iωt).

pub fn dc_conductivity(&self) -> f64

DC conductivity σ₀ = ε₀ ωp² / γ [S/m].

pub fn skin_depth(&self, omega: f64) -> f64

Skin depth at angular frequency ω [rad/s].

pub fn plasma_freq_hz(&self) -> f64

Plasma frequency in Hz.

Trait Implementations

impl Clone for DrudeModel

fn clone(&self) -> DrudeModel

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DrudeModel

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for DrudeModel