Ge Refractive Index

Optical constants (n, k) of Ge, covering 0.19 – 2.17 μm wavelength range.

Range 0.188 – 2.175 μm
Data Points 604

Optical Constants at Key Wavelengths

632.8 nm (He-Ne)
n = 5.4680
k = 0.7453
589.3 nm (Na-D)
n = 5.7580
k = 1.5950
532 nm
n = 4.9530
k = 2.3480
1550 nm (Telecom)
n = 4.2500
k = 0.0252

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.18790.835102.56700
0.19220.895802.61400
0.19680.952302.66900
0.20161.008002.74000
0.20661.087002.83700
0.21191.220002.92100
0.21751.366002.93300
0.22341.446002.90300
0.22961.459002.90700
0.23621.451002.97500
0.24311.455003.10600
0.25051.493003.29400
0.25831.583003.53300
0.26661.737003.83300
0.27552.041004.30000
0.28502.993004.64000
0.29523.829004.01200
0.30613.944003.44900
0.31793.992003.13500
0.33064.020002.89700
0.34444.041002.72700
0.35944.098002.60400
0.37574.184002.43300
0.39364.209002.24200
0.41334.126002.10400
0.43504.068002.12300
0.45924.125002.20400
0.48624.290002.30000
0.51664.650002.41000
0.55105.202002.10400
0.59045.758001.59500
0.63585.437000.71510
0.68885.061000.45170
0.75144.812000.32480
0.82664.631000.25080
0.91844.499000.20200
1.03304.403000.16070
1.18104.326000.11180
1.37804.259000.07433
1.65304.186000.00111
2.06604.105000.00000
2.17504.094000.00000

Sampled data (604 points total). Click "Download Full CSV" for complete data.

Notes

300 K

References

T. N. Nunley, N. S. Fernando, N. Samarasingha, J. M. Moya, C. M. Nelson, A. A. Medina, S. Zollner. Optical constants of germanium and thermally grown germanium dioxide from 0.5 to 6.6 eV via a multi-sample ellipsometry investigation. J. Vac. Sci. Technol. B 34, 061205 (2016) (See supplemental materials)

Related Materials (Main)

Ag Ag3AsS3 (e) Ag3AsS3 (o) AgBr AgCl AgGaS2 (e)

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