Struct Material 

pub struct Material {
    pub epsilon: Complex,
    pub mu: Complex,
    pub kappa: Complex,
}

Isotropic reciprocal material, optionally chiral.

Upstream: treams.Material. Differences: index keeps the principal square root, as treams.coeffs.mie does, where Material.n flips its sign for a negative imaginary part.

Fields

epsilon: Complex

Relative permittivity.

mu: Complex

Relative permeability.

kappa: Complex

Chirality parameter.

Implementations

impl Material

pub(super) fn pushforward(self, direction: Self) -> MaterialTangent

Directional derivatives of the derived optical parameters. direction stores changes of epsilon, mu and kappa, rather than another physical material.

pub fn index(self) -> Complex

The refractive index sqrt(epsilon mu) on the principal branch.

pub fn indices(self) -> [Complex; 2]

The negative and positive helicity indices sqrt(epsilon mu) -+ kappa, each negated if its imaginary part is negative.

Upstream: treams.misc.refractive_index.

pub fn impedance(self) -> Complex

The relative impedance sqrt(mu / epsilon) on the principal branch.

Upstream: treams.Material.impedance.

pub(super) fn tangents(self) -> [MaterialTangent; 3]

Derivatives of the index, impedance and chirality with respect to epsilon, mu and kappa, in that order.

Trait Implementations

impl Clone for Material

fn clone(&self) -> Material

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Material

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

Formats the value using the given formatter.

impl Default for Material

fn default() -> Self

Returns the “default value” for a type.

impl Copy for Material