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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF2

Wavelength: µm
 (0.340–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=2.96796358-0.0119454184λ^{2}-0.000121022641λ^{4}+0.0250950364λ^{-2}+0.00059199783λ^{-4}-3.88364981\text{×}10^{-06}λ^{-6}+2.08885425\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.5108e-06 1.43e-08 -2.2272e-12 7.8499e-07 8.1123e-10 0.19366
nd: 1.744000
Vd: 44.804167
density: 4.16 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.8e-06 K-1
dPgF: -0.0056
phosphate_resistance: 2.0

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

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

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

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