Optical constants

Refractive index of MoSe₂ (Molybdenum diselenide)

Zotev et al. 2023: n,k(o) 0.36–1.0 µm

Data: tabulated nk
Range: 0.36–1 µm
Points: 402
Optical axis: o
Licence: CC0-1.0

Uniaxial crystal, axes: oe

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 4.9039
Extinction coefficient k: 1.6877

Permittivity ε₁: 21.1999
Permittivity ε₂: 16.5526

Absorption coefficient α: 360930 cm⁻¹
Penetration depth δ = λ/(2πk): 55.4124 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 1.5 µm⁻¹

Group index n_g: 4.0225
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 2.11001 eV

ε = (n + ik)², α = 4πk/λ, n_g = n − λ dn/dλ, GVD = λ³/(2πc²) d²n/dλ², D = −(λ/c) d²n/dλ². Group-velocity dispersion is given for formula data only.

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# MoSe2 (Molybdenum diselenide): Zotev et al. 2023: n,k(o) 0.36–1.0 µm
mose2 = ls.fetch_refractiveindex("main", "MoSe2", "Zotev-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mose2.range_nm)  # (360, 1000) nm
eps = mose2.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_ca8a6060a593/lightsmith"
mose2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(mose2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (mose2/zotev-2023-o).

# ... load mose2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=mose2)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

Comments and conditions

Multilayer crystals. In-plane (ordinary ray, o). Room temperature.

Conditions

direction: o

References

P. G. Zotev, Y. Wang, D. Andres-Penares, T. Severs-Millard, S. Randerson, X. Hu, L. Sortino, C. Louca, M. Brotons-Gisbert, T. Huq, S. Vezzoli, R. Sapienza, T. F. Krauss, B. D. Gerardot, A. I. Tartakovskii. Van der Waals materials for applications in nanophotonics. Laser and Photonics Rev. 17, 2200957 (2023) (Numerical data kindly provided by Panaiot Zotev)

doi:10.1002/lpor.202200957 Van der Waals Materials for Applications in Nanophotonics, Laser & Photonics Reviews (2023)

Cite

Panaiot G. Zotev et al.. Van der Waals Materials for Applications in Nanophotonics. Laser & Photonics Reviews, 17, 2200957 (2023), doi:10.1002/lpor.202200957; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

402 rows as published

CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata

MoSe2 (Molybdenum diselenide), Zotev et al. 2023: n,k(o) 0.36–1.0 µm: n and k versus wavelength
λ (µm)	n	k
0.36	2.047	3.308
0.362	2.093	3.341
0.363	2.141	3.372
0.365	2.192	3.402
0.366	2.244	3.431
0.368	2.297	3.458
0.37	2.353	3.484
0.371	2.41	3.508
0.373	2.469	3.53
0.374	2.529	3.55
0.376	2.591	3.567
0.378	2.655	3.582
0.379	2.72	3.594
0.381	2.785	3.603
0.382	2.852	3.61
0.384	2.919	3.612
0.386	2.986	3.612
0.387	3.053	3.608
0.389	3.12	3.6
0.39	3.186	3.589
0.392	3.252	3.575
0.394	3.316	3.557
0.395	3.378	3.536
0.397	3.438	3.511
0.398	3.496	3.484
0.4	3.551	3.454
0.402	3.604	3.422
0.403	3.654	3.387
0.405	3.7	3.351
0.406	3.743	3.314
0.408	3.783	3.275
0.41	3.819	3.236
0.411	3.853	3.196
0.413	3.883	3.156
0.414	3.91	3.117
0.416	3.934	3.078
0.418	3.955	3.039
0.419	3.974	3.002
0.421	3.991	2.966
0.422	4.005	2.931
0.424	4.017	2.898
0.426	4.028	2.866
0.427	4.037	2.835
0.429	4.045	2.806
0.43	4.051	2.779
0.432	4.057	2.753
0.434	4.062	2.729
0.435	4.066	2.707
0.437	4.07	2.686
0.438	4.073	2.666
0.44	4.077	2.648
0.442	4.08	2.631
0.443	4.083	2.616
0.445	4.086	2.601
0.446	4.09	2.588
0.448	4.094	2.576
0.45	4.098	2.564
0.451	4.102	2.554
0.453	4.107	2.544
0.454	4.112	2.535
0.456	4.118	2.526
0.458	4.124	2.518
0.459	4.13	2.511
0.461	4.138	2.504
0.462	4.145	2.497
0.464	4.153	2.491
0.466	4.161	2.484
0.467	4.17	2.478
0.469	4.18	2.472
0.47	4.189	2.467
0.472	4.2	2.461
0.474	4.21	2.455
0.475	4.221	2.449
0.477	4.232	2.443
0.478	4.244	2.437
0.48	4.256	2.431
0.482	4.268	2.424
0.483	4.28	2.418
0.485	4.293	2.411
0.486	4.305	2.404
0.488	4.318	2.397
0.49	4.331	2.389
0.491	4.344	2.382
0.493	4.357	2.374
0.494	4.371	2.366
0.496	4.384	2.358
0.498	4.397	2.349
0.499	4.41	2.34
0.501	4.424	2.331
0.502	4.437	2.322
0.504	4.45	2.312
0.506	4.463	2.303
0.507	4.476	2.293
0.509	4.489	2.283
0.51	4.501	2.272
0.512	4.514	2.262
0.514	4.527	2.251
0.515	4.539	2.24
0.517	4.551	2.229
0.518	4.563	2.218
0.52	4.575	2.207
0.522	4.587	2.195
0.523	4.598	2.184
0.525	4.609	2.172
0.526	4.621	2.16
0.528	4.632	2.148
0.53	4.642	2.136
0.531	4.653	2.124
0.532	4.659	2.117
0.533	4.663	2.112
0.534	4.674	2.1
0.536	4.684	2.087
0.538	4.694	2.075
0.539	4.703	2.063
0.541	4.713	2.05
0.542	4.722	2.037
0.544	4.731	2.025
0.546	4.74	2.012
0.547	4.749	1.999
0.549	4.757	1.987
0.55	4.765	1.974
0.552	4.773	1.961
0.554	4.781	1.948
0.555	4.789	1.936
0.557	4.796	1.923
0.558	4.804	1.91
0.56	4.811	1.897
0.562	4.818	1.885
0.563	4.824	1.872
0.565	4.831	1.859
0.566	4.837	1.847
0.568	4.843	1.834
0.57	4.849	1.822
0.571	4.855	1.809
0.573	4.86	1.797
0.574	4.865	1.785
0.576	4.871	1.773
0.578	4.876	1.761
0.579	4.88	1.749
0.581	4.885	1.737
0.582	4.89	1.725
0.584	4.894	1.714
0.586	4.898	1.702
0.587	4.903	1.691
0.589	4.906	1.68
0.59	4.91	1.669
0.592	4.914	1.658
0.594	4.918	1.647
0.595	4.922	1.637
0.597	4.926	1.627
0.598	4.93	1.616
0.6	4.933	1.607
0.602	4.936	1.597
0.603	4.94	1.587
0.605	4.944	1.577
0.606	4.947	1.568
0.608	4.951	1.559
0.61	4.955	1.55
0.611	4.959	1.541
0.613	4.963	1.532
0.614	4.967	1.524
0.616	4.971	1.515
0.618	4.976	1.507
0.619	4.98	1.498
0.621	4.984	1.49
0.622	4.989	1.482
0.624	4.995	1.473
0.626	4.999	1.465
0.627	5.005	1.457
0.629	5.01	1.449
0.63	5.017	1.44
0.632	5.022	1.432
0.634	5.028	1.423
0.635	5.035	1.415
0.637	5.042	1.406
0.638	5.049	1.397
0.64	5.056	1.388
0.642	5.063	1.378
0.643	5.07	1.369
0.645	5.078	1.358
0.646	5.086	1.348
0.648	5.093	1.337
0.65	5.101	1.326
0.651	5.109	1.315
0.653	5.118	1.303
0.654	5.125	1.29
0.656	5.133	1.277
0.658	5.141	1.264
0.659	5.149	1.25
0.661	5.157	1.235
0.662	5.164	1.22
0.664	5.171	1.205
0.666	5.178	1.189
0.667	5.184	1.173
0.669	5.19	1.156
0.67	5.196	1.138
0.672	5.2	1.12
0.674	5.205	1.102
0.675	5.209	1.084
0.677	5.212	1.065
0.678	5.214	1.046
0.68	5.216	1.026
0.682	5.217	1.007
0.683	5.217	0.987
0.685	5.217	0.967
0.686	5.216	0.948
0.688	5.214	0.928
0.69	5.211	0.909
0.691	5.207	0.889
0.693	5.203	0.87
0.694	5.198	0.851
0.696	5.192	0.833
0.698	5.186	0.815
0.699	5.178	0.797
0.701	5.171	0.78
0.702	5.162	0.763
0.704	5.153	0.747
0.706	5.144	0.732
0.707	5.134	0.717
0.709	5.124	0.703
0.71	5.113	0.689
0.712	5.102	0.676
0.714	5.091	0.664
0.715	5.079	0.652
0.717	5.067	0.641
0.718	5.055	0.631
0.72	5.043	0.622
0.722	5.031	0.613
0.723	5.019	0.605
0.725	5.006	0.598
0.726	4.994	0.591
0.728	4.982	0.585
0.73	4.97	0.58
0.731	4.958	0.575
0.733	4.946	0.571
0.734	4.934	0.567
0.736	4.922	0.565
0.738	4.911	0.563
0.739	4.9	0.561
0.741	4.889	0.56
0.742	4.878	0.56
0.744	4.868	0.56
0.746	4.858	0.561
0.747	4.848	0.563
0.749	4.839	0.565
0.75	4.831	0.568
0.752	4.822	0.571
0.754	4.814	0.574
0.755	4.807	0.579
0.757	4.801	0.583
0.758	4.794	0.589
0.76	4.789	0.594
0.762	4.785	0.6
0.763	4.78	0.607
0.765	4.777	0.614
0.766	4.775	0.621
0.768	4.774	0.629
0.77	4.772	0.637
0.771	4.774	0.646
0.773	4.776	0.654
0.774	4.778	0.663
0.776	4.781	0.671
0.778	4.787	0.68
0.779	4.793	0.688
0.781	4.8	0.696
0.782	4.809	0.704
0.784	4.82	0.711
0.786	4.831	0.717
0.787	4.842	0.723
0.789	4.857	0.728
0.79	4.873	0.731
0.792	4.889	0.734
0.794	4.905	0.735
0.795	4.925	0.734
0.797	4.944	0.732
0.798	4.963	0.728
0.8	4.983	0.722
0.802	5.003	0.713
0.803	5.024	0.702
0.805	5.044	0.689
0.806	5.063	0.673
0.808	5.08	0.656
0.81	5.096	0.636
0.811	5.112	0.615
0.813	5.128	0.591
0.814	5.137	0.567
0.816	5.145	0.541
0.818	5.153	0.514
0.819	5.162	0.487
0.821	5.162	0.46
0.822	5.161	0.432
0.824	5.16	0.405
0.826	5.159	0.379
0.827	5.154	0.353
0.829	5.146	0.328
0.83	5.137	0.305
0.832	5.129	0.282
0.834	5.12	0.261
0.835	5.107	0.241
0.837	5.094	0.222
0.838	5.082	0.204
0.84	5.069	0.188
0.842	5.055	0.173
0.843	5.041	0.158
0.845	5.027	0.145
0.846	5.013	0.134
0.848	4.999	0.123
0.85	4.985	0.112
0.851	4.971	0.103
0.853	4.957	0.095
0.854	4.943	0.087
0.856	4.929	0.08
0.858	4.917	0.074
0.859	4.904	0.068
0.861	4.891	0.062
0.862	4.879	0.058
0.864	4.866	0.053
0.866	4.855	0.049
0.867	4.844	0.046
0.869	4.832	0.043
0.87	4.821	0.04
0.872	4.81	0.037
0.874	4.8	0.035
0.875	4.791	0.033
0.877	4.781	0.031
0.878	4.771	0.029
0.88	4.761	0.028
0.882	4.753	0.027
0.883	4.745	0.026
0.885	4.736	0.025
0.886	4.728	0.024
0.888	4.72	0.023
0.89	4.712	0.023
0.891	4.705	0.022
0.893	4.699	0.021
0.894	4.692	0.021
0.896	4.685	0.02
0.898	4.678	0.02
0.899	4.672	0.019
0.901	4.666	0.019
0.902	4.66	0.018
0.904	4.654	0.018
0.906	4.648	0.017
0.907	4.642	0.017
0.909	4.637	0.016
0.91	4.631	0.016
0.912	4.626	0.015
0.914	4.62	0.015
0.915	4.615	0.014
0.917	4.61	0.014
0.918	4.605	0.013
0.92	4.6	0.013
0.922	4.595	0.013
0.923	4.59	0.012
0.925	4.585	0.012
0.926	4.581	0.012
0.928	4.576	0.011
0.93	4.572	0.011
0.931	4.568	0.01
0.933	4.563	0.01
0.934	4.559	0.01
0.936	4.554	0.009
0.938	4.55	0.009
0.939	4.546	0.009
0.941	4.542	0.009
0.942	4.538	0.008
0.944	4.534	0.008
0.946	4.53	0.008
0.947	4.526	0.007
0.949	4.522	0.007
0.95	4.518	0.007
0.952	4.515	0.007
0.954	4.511	0.007
0.955	4.507	0.006
0.957	4.504	0.006
0.958	4.5	0.006
0.96	4.497	0.006
0.962	4.493	0.006
0.963	4.49	0.005
0.965	4.486	0.005
0.966	4.483	0.005
0.968	4.48	0.005
0.97	4.476	0.005
0.971	4.473	0.005
0.973	4.47	0.004
0.974	4.467	0.004
0.976	4.464	0.004
0.978	4.461	0.004
0.979	4.458	0.004
0.981	4.455	0.004
0.982	4.452	0.004
0.984	4.449	0.003
0.986	4.446	0.003
0.987	4.443	0.003
0.989	4.44	0.003
0.99	4.437	0.003
0.992	4.434	0.003
0.994	4.432	0.003
0.995	4.429	0.003
0.997	4.426	0.003
0.998	4.423	0.002
1.0	4.421	0.002

Optical transmission calculator

Free-standing sample in vacuum, normal incidence

Transmittance T: —
Reflectance R: —

Fresnel reflection calculator

R_p: —
R_s: —
R = (R_p+R_s)/2: —
Phase φ_p: —
Phase φ_s: —
Brewster angle θ_B: —
Critical angle θ_C: —

MoSe₂ (Molybdenum diselenide): all datasets

Bulk

2D structures

Multilayer flakes

About MoSe2 (Molybdenum diselenide)

Molybdenum diselenide (MoSe₂) is a layered compound similar in structure to molybdenum disulfide (MoS₂). Each layer consists of a plane of molybdenum atoms sandwiched between two planes of selenium atoms. These layers are held together by weak van der Waals forces, allowing them to be easily exfoliated. In its bulk form, MoSe₂ behaves as an indirect bandgap semiconductor. However, when reduced to a monolayer, its properties shift, and it becomes a direct bandgap semiconductor. This transition in electronic properties has attracted considerable interest in the fields of optoelectronics and nanotechnology. Potential applications include use in transistors, photodetectors, and other electronic or optoelectronic devices, especially when high-quality thin films or single layers are employed.

More about MoSe2 (Molybdenum diselenide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/MoSe2/nk/Zotev-o.yml
ID: ds_ca8a6060a593
API: /v1/datasets/ds_ca8a6060a593

Plot