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Refractive index database

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Optical constants of Ge (Germanium)
Li 1980: n 1.9-18 µm; 250 K

Wavelength: µm
 (1.90 – 18.0)  
 

Derived optical constants

logX   logY   eV

Comments

250 K (-23 °C)

References

H. H. Li. Refractive index of silicon and germanium and its wavelength and temperature derivatives, J. Phys. Chem. Ref. Data 9, 561-658 (1993)

Data

[CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Germanium, Ge

Germanium is a popular optical material for infrared optical diapason. Ge optical components (lenses, filters, beamsplitters etc.) are used in thermal imaging, CO2 lasers, night vision systems and other applications in mid-wave infrared (MWIR) and long-wave infrared (LWIR).

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