sapphire Refractive Index

Optical constants (n, k) of sapphire, covering 0.20 – 2.17 μm wavelength range.

Range 0.200 – 2.165 μm
Data Points 75

Optical Constants at Key Wavelengths

632.8 nm (He-Ne)
n = 1.7657
k = 0.0000
589.3 nm (Na-D)
n = 1.7676
k = 0.0000
532 nm
n = 1.7722
k = 0.0000
1550 nm (Telecom)
n = 1.7458
k = 0.0000

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.20001.912710.00000
0.20651.899810.00000
0.21331.888230.00000
0.22031.877780.00000
0.22751.868320.00000
0.23491.859730.00000
0.24261.851910.00000
0.25051.844770.00000
0.25871.838230.00000
0.26721.832230.00000
0.27591.826720.00000
0.28501.821650.00000
0.29431.816970.00000
0.30391.812650.00000
0.31391.808660.00000
0.32411.804960.00000
0.33471.801540.00000
0.34571.798360.00000
0.35701.795410.00000
0.36871.792660.00000
0.38071.790110.00000
0.39321.787730.00000
0.40601.785510.00000
0.41931.783430.00000
0.43301.781500.00000
0.44721.779690.00000
0.46181.777990.00000
0.47701.776400.00000
0.49261.774910.00000
0.50871.773510.00000
0.52531.772190.00000
0.54251.770950.00000
0.56021.769780.00000
0.57861.768680.00000
0.59751.767640.00000
0.61701.766650.00000
0.63721.765700.00000
0.65811.764810.00000
0.67961.763960.00000
0.70181.763140.00000
0.72481.762360.00000
0.74851.761610.00000
0.77301.760880.00000
0.79831.760180.00000
0.82441.759500.00000
0.85131.758830.00000
0.87921.758190.00000
0.90791.757550.00000
0.93771.756920.00000
0.96831.756300.00000
1.00001.755680.00000
1.03271.755060.00000
1.06651.754440.00000
1.10141.753820.00000
1.13741.753180.00000
1.17461.752540.00000
1.21301.751890.00000
1.25271.751220.00000
1.29371.750530.00000
1.33601.749820.00000
1.37971.749090.00000
1.42491.748330.00000
1.47151.747540.00000
1.51961.746710.00000
1.56931.745840.00000
1.62071.744940.00000
1.67371.743990.00000
1.72841.742980.00000
1.78501.741930.00000
1.84341.740810.00000
1.90371.739630.00000
1.96591.738380.00000
2.03021.737060.00000
2.09671.735650.00000
2.16521.734160.00000

Sampled data (75 points total). Click "Download Full CSV" for complete data.

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