Struct SellmeierModel 

pub struct SellmeierModel {
    pub b: Vec<f64>,
    pub c: Vec<f64>,
}

Sellmeier dispersion model for the refractive index of optical glass.

n²(λ) = 1 + Σ_i B_i λ² / (λ² − C_i)

where λ is in micrometres and C_i are resonance wavelengths squared [μm²].

Fields

b: Vec<f64>

Sellmeier B coefficients (dimensionless oscillator strengths).

c: Vec<f64>

Sellmeier C coefficients [μm²].

Implementations

impl SellmeierModel

pub fn new(b: Vec<f64>, c: Vec<f64>) -> Self

Construct a Sellmeier model.

pub fn bk7() -> Self

Standard Sellmeier coefficients for BK7 borosilicate glass.

pub fn fused_silica() -> Self

Standard Sellmeier coefficients for fused silica (SiO₂).

pub fn refractive_index(&self, lambda_um: f64) -> f64

Refractive index n(λ) for wavelength lambda_um in micrometres.

pub fn group_index(&self, lambda_um: f64) -> f64

Group refractive index n_g = n − λ dn/dλ, estimated by finite difference.

pub fn gvd(&self, lambda_um: f64) -> f64

Group velocity dispersion GVD = λ³/(2πc²) · d²n/dλ² [s²/m] at lambda_um.

Trait Implementations

impl Clone for SellmeierModel

fn clone(&self) -> SellmeierModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SellmeierModel

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

Formats the value using the given formatter.