RefractiveIndex.INFO

Refractive index database

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Optical constants of OHARA - YGH
YGH51

Wavelength: µm
 (0.334 – 2.325)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.0180334-0.015399743λ^{2}+0.021762822λ^{-2}+0.00053963162λ^{-4}-1.3760417\text{×}10^{-05}λ^{-6}+9.9935993\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 25.0 °C
n_d: 1.754998
V_d: 52.326713
glass_code: 755523
glass_status: preferred

References

OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets

Data

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

INFO

Ohara Group

Ohara Group is an international group of companies with headquarters in Japan and subsidiaries in Japan (Ohara, Inc.), United States (Ohara Corporation), and Germany (Ohara, GmbH). Ohara manufactures optical and electronic products and also offers measurement services, in particular measurement of refractive indices of solids and liquids.

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