WSe2 Refractive Index

Optical constants (n, k) of WSe2, covering 0.19 – 1.69 μm wavelength range.

Range 0.193 – 1.690 μm
Data Points 1084

Optical Constants at Key Wavelengths

632.8 nm (He-Ne)
n = 4.7377
k = 0.8385
589.3 nm (Na-D)
n = 4.6804
k = 1.5201
532 nm
n = 4.8895
k = 1.8565
1550 nm (Telecom)
n = 3.9124
k = 0.0518

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.19300.474953.16861
0.22000.978813.24387
0.24701.314283.45030
0.27401.889813.39997
0.30102.428583.36565
0.32802.407902.84409
0.35502.508203.28519
0.38202.818823.22110
0.40903.196273.77468
0.43604.506793.40724
0.46304.503812.40857
0.49004.303282.40464
0.51704.799972.22998
0.54404.809481.61596
0.57104.564221.48117
0.59804.799531.43063
0.62504.809270.94454
0.65204.540110.67434
0.67904.238160.58669
0.70603.848670.71742
0.73303.879331.89112
0.76005.244430.82688
0.78704.783370.34431
0.81404.538060.23528
0.84104.390620.18998
0.86804.289340.16424
0.89504.214140.14691
0.92204.155600.13405
0.94904.108670.12392
0.97604.070270.11560
1.00754.033700.10752
1.07503.976680.09407
1.14253.939760.08399
1.21003.916530.07604
1.27753.903250.06955
1.34503.897540.06412
1.41253.897780.05949
1.48003.902870.05548
1.54753.911960.05196
1.61503.924460.04885
1.68253.939890.04606
1.69003.941770.04577

Sampled data (1084 points total). Click "Download Full CSV" for complete data.

Notes

Monolayer (1-layer, 1L)

References

H. Gu, B. Song, M. Fang, Y. Hong, X. Chen, H. Jiang, W. Ren, S. Liu. Layer-dependent dielectric and optical properties of centimeter-scale 2D WSe2: evolution from a single layer to few layers. Nanoscale 11, 22762-22771 (2019) (Numerical data kindly provided by Baokun Song)

Related Materials (Main)

Need to measure WSe2 thin film thickness?

Acuitik film thickness measurement systems offer sub-nanometer non-contact precision.