Kapton Refractive Index

Optical constants (n, k) of Kapton, covering 0.19 – 1.59 μm wavelength range.

Range 0.190 – 1.590 μm
Data Points 141

Optical Constants at Key Wavelengths

632.8 nm (He-Ne)
n = 1.8081
k = 0.0001
589.3 nm (Na-D)
n = 1.8177
k = 0.0001
532 nm
n = 1.8369
k = 0.0003
1550 nm (Telecom)
n = 1.7612
k = 0.0001

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.19001.343120.00089
0.22001.799190.00089
0.25002.120610.00089
0.28002.017650.00089
0.31002.195700.00089
0.34002.086950.00089
0.37001.999440.00089
0.40001.945600.00089
0.43001.910070.00089
0.46001.882680.00089
0.49001.859040.00083
0.52001.842060.00043
0.55001.829520.00021
0.58001.820130.00014
0.61001.812160.00010
0.64001.805290.00008
0.67001.799400.00007
0.70001.794700.00006
0.73001.790450.00005
0.76001.787370.00005
0.79001.783970.00004
0.82001.781070.00004
0.85001.779250.00004
0.88001.776390.00004
0.91001.773920.00004
0.94001.772610.00004
0.97001.772610.00004
1.00001.768850.00004
1.03001.768830.00004
1.06001.769370.00004
1.09001.765030.00004
1.12001.765030.00005
1.15001.765030.00004
1.18001.764280.00004
1.21001.761240.00004
1.24001.761240.00004
1.27001.761240.00005
1.30001.761240.00005
1.33001.761240.00005
1.36001.761240.00005
1.39001.761240.00006
1.42001.761240.00006
1.45001.761240.00006
1.48001.761240.00006
1.51001.761240.00006
1.54001.761240.00006
1.57001.761220.00006
1.59001.760110.00006

Sampled data (141 points total). Click "Download Full CSV" for complete data.

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