sciforge_lib/constants/physics/optics/
absorption.rs

1#[derive(Debug, Clone, Copy)]
2pub struct OpticalAbsorption {
3    pub formula: &'static str,
4    pub wavelength_nm: f64,
5    pub absorption_coeff_per_m: f64,
6    pub extinction_coeff_k: f64,
7}
8
9pub const TABLE: &[OpticalAbsorption] = &[
10    OpticalAbsorption { formula: "Si",   wavelength_nm: 500.0,  absorption_coeff_per_m: 1.0e6,  extinction_coeff_k: 4.0e-2 },
11    OpticalAbsorption { formula: "Si",   wavelength_nm: 1000.0, absorption_coeff_per_m: 6.0e3,  extinction_coeff_k: 4.0e-4 },
12    OpticalAbsorption { formula: "Ge",   wavelength_nm: 1550.0, absorption_coeff_per_m: 5.0e5,  extinction_coeff_k: 6.0e-2 },
13    OpticalAbsorption { formula: "GaAs", wavelength_nm: 800.0,  absorption_coeff_per_m: 1.0e6,  extinction_coeff_k: 6.0e-2 },
14    OpticalAbsorption { formula: "SiO2", wavelength_nm: 633.0,  absorption_coeff_per_m: 1.0e-2, extinction_coeff_k: 1.0e-9 },
15    OpticalAbsorption { formula: "SiO2", wavelength_nm: 1550.0, absorption_coeff_per_m: 4.6e-5, extinction_coeff_k: 5.7e-12 },
16    OpticalAbsorption { formula: "H2O",  wavelength_nm: 633.0,  absorption_coeff_per_m: 0.36,   extinction_coeff_k: 1.81e-8 },
17    OpticalAbsorption { formula: "H2O",  wavelength_nm: 1450.0, absorption_coeff_per_m: 30.0,   extinction_coeff_k: 3.46e-6 },
18    OpticalAbsorption { formula: "Al",   wavelength_nm: 550.0,  absorption_coeff_per_m: 1.4e8,  extinction_coeff_k: 6.10 },
19    OpticalAbsorption { formula: "Au",   wavelength_nm: 550.0,  absorption_coeff_per_m: 5.0e7,  extinction_coeff_k: 2.21 },
20    OpticalAbsorption { formula: "Ag",   wavelength_nm: 550.0,  absorption_coeff_per_m: 8.0e7,  extinction_coeff_k: 3.51 },
21    OpticalAbsorption { formula: "Cu",   wavelength_nm: 550.0,  absorption_coeff_per_m: 6.0e7,  extinction_coeff_k: 2.60 },
22];
23
24pub fn by_formula_wavelength(formula: &str, wavelength_nm: f64) -> Option<&'static OpticalAbsorption> {
25    TABLE.iter()
26        .filter(|a| a.formula == formula)
27        .min_by(|a, b| {
28            (a.wavelength_nm - wavelength_nm).abs()
29                .partial_cmp(&(b.wavelength_nm - wavelength_nm).abs())
30                .unwrap_or(std::cmp::Ordering::Equal)
31        })
32}
sciforge_lib/constants/physics/optics/absorption.rs

sciforge_lib/constants/physics/optics/
absorption.rs
