Nb Refractive Index

Optical constants (n, k) of Nb, covering 0.40 – 2.20 μm wavelength range.

Range 0.400 – 2.200 μm

Data Points 43

Optical Constants at Key Wavelengths

632.8 nm (He-Ne)

n = 2.2700

k = 3.3000

589.3 nm (Na-D)

n = 2.2900

k = 3.2300

532 nm

n = 2.2300

k = 3.1500

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)	n	k
0.4000	1.50000	2.99000
0.4200	1.61000	2.95000
0.4400	1.91000	2.98000
0.4600	2.00000	3.00000
0.4800	2.02000	3.04000
0.5000	2.13000	3.07000
0.5200	2.20000	3.08000
0.5400	2.23000	3.15000
0.5600	2.29000	3.17000
0.5800	2.29000	3.23000
0.6000	2.27000	3.25000
0.6200	2.28000	3.25000
0.6400	2.27000	3.30000
0.6600	2.27000	3.36000
0.6800	2.23000	3.38000
0.7000	2.22000	3.41000
0.7200	2.17000	3.44000
0.7400	2.13000	3.47000
0.7600	2.11000	3.62000
0.7800	2.06000	3.72000
0.8000	2.05000	3.85000
0.8200	2.01000	3.90000
0.8400	2.00000	4.03000
0.8500	1.92000	4.06000
0.8800	1.86000	4.16000
0.9000	1.83000	4.32000
0.9200	1.80000	4.41000
0.9500	1.71000	4.62000
0.9800	1.71000	4.80000
1.0000	1.66000	4.94000
1.0500	1.59000	5.37000
1.1000	1.52000	5.66000
1.2000	1.43000	6.31000
1.3000	1.38000	7.04000
1.4000	1.35000	7.64000
1.5000	1.39000	8.24000
1.6000	1.48000	8.96000
1.7000	1.49000	9.61000
1.8000	1.68000	10.30000
1.9000	1.67000	11.00000
2.0000	1.75000	11.60000
2.1000	1.83000	12.20000
2.2000	2.26000	13.10000

Sampled data (43 points total). Click "Download Full CSV" for complete data.

Notes

293 K (19.85 °C)

References

A. I. Golovashkin, I. E. Leksina, G. P. Motulevich and A. A. Shubin. The optical properties of niobium, Sov. Phys. JETP 29, 27-34 (1969)

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