Struct RefractiveIndex 

pub struct RefractiveIndex {
    pub n: f64,
    pub k: f64,
}

Complex refractive index N = n + i·k.

The real part n represents phase velocity reduction; the imaginary part k (extinction coefficient) describes optical absorption.

Fields

n: f64

Real part — phase refractive index.

k: f64

Imaginary part — extinction coefficient.

Implementations

impl RefractiveIndex

pub fn new(n: f64, k: f64) -> Self

Create a new complex refractive index.

pub fn lossless(n: f64) -> Self

Create a lossless medium (k = 0).

pub fn cauchy(a: f64, b: f64, c: f64, lambda_um: f64) -> f64

Cauchy dispersion model: n(λ) = A + B/λ² + C/λ⁴.

lambda_um is the wavelength in micrometres. Returns only the real part; combine with a separate k model as needed.

pub fn modulus(&self) -> f64

Modulus of the complex refractive index |N|.

pub fn epsilon_real(&self) -> f64

Dielectric function real part: ε₁ = n² - k².

pub fn epsilon_imag(&self) -> f64

Dielectric function imaginary part: ε₂ = 2nk.

Trait Implementations

impl Clone for RefractiveIndex

fn clone(&self) -> RefractiveIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RefractiveIndex

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

Formats the value using the given formatter.

impl PartialEq for RefractiveIndex

fn eq(&self, other: &RefractiveIndex) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for RefractiveIndex

impl StructuralPartialEq for RefractiveIndex