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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH15

Wavelength: µm
 (0.360–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=3.64640666-0.0151039558λ^{2}+0.0480157444λ^{-2}+0.00349072452λ^{-4}-0.000573639028λ^{-6}+0.000130249514λ^{-8}-1.29576789\text{×}10^{-05}λ^{-10}+5.92144355\text{×}10^{-07}λ^{-12}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -5.7421e-07 1.1589e-08 -1.3886e-12 1.018e-06 1.3557e-09 0.26662
nd: 1.950000
Vd: 29.366344
density: 4.79 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.4e-06 K-1
dPgF: 0.005
phosphate_resistance: 1.0

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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