Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
LASF35

Wavelength: µm

(0.37 – 2.5)

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{2.45505861λ^2}{λ^2-0.0135670404}+\frac{0.453006077λ^2}{λ^2-0.054580302}+\frac{2.3851308λ^2}{λ^2-167.904715}$$

Data

[Expressions for n] [CSV - comma separated] [TXT - tab separated] [Full database record]

Additional information

n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 1.43e-07 8.71e-09 -2.71e-11 1.02e-06 1.5e-09 0.263 n_d: 2.02204 V_d: 29.06 glass_status: standard density: 5.41 g/cm³ coefficient_of_thermal_expansion_1: 7.4e-06 K^-1 coefficient_of_thermal_expansion_2: 8.5e-06 K^-1 ΔP_gF: 0.0033 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 1.3 alkali_resistance: 1.0 phosphate_resistance: 1.3

References

1) SCHOTT optical glass data sheets 2015-07-22
2) SCHOTT Zemax catalog 2015-07-22

Reflection calculator

Angle of incidence (0~90°):
Direction: in out

Reflectance (at µm)[ i ]

R_S = (S-polarized)
R_P = (P-polarized)
R = (non-polarized, (R_S+R_P)/2 )

Reflection phase[ i ]

ɸ = °
ɸ_S = °
ɸ_P = °

Brewster's angle[ i ]

θ_B = °

Critical angle[ i ] [ i ]

θ_C = °

Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
LASF35

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Data

Additional information

References

Optical transmission calculator

Transmittance (at µm)[ i ]

Reflection calculator

Reflectance (at µm)[ i ]

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

More info - wiki

External links

Optical constants of SCHOTT - LaSF (Lanthanum dense flint)LASF35

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Data

Additional information

References

Optical transmission calculator

Transmittance (at µm)[ i ]

Reflection calculator

Reflectance (at µm)[ i ]

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

More info - wiki

External links

Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
LASF35