Optical constants

Refractive index of InAs (Indium arsenide)

Adachi 1989: n,k 0.207–12.4 µm

Data: tabulated nk
Range: 0.2066–12.4 µm
Points: 200
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 4.04273
Extinction coefficient k: 0.675915

Permittivity ε₁: 15.8868
Permittivity ε₂: 5.46508

Absorption coefficient α: 144551 cm⁻¹
Penetration depth δ = λ/(2πk): 138.36 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -3.76951 µm⁻¹

Group index n_g: 6.25769
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

# InAs (Indium arsenide): Adachi 1989: n,k 0.207–12.4 µm
inas = ls.fetch_refractiveindex("main", "InAs", "Adachi", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(inas.range_nm)  # (206.64, 12398) nm
eps = inas.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_be2a6ed83f1c/lightsmith"
inas = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(inas.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (inas/adachi-1989).

# ... load inas as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=inas)],
    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.

References

S. Adachi. Optical dispersion relations for GaP, GaAs, GaSb, InP, InAs, InSb, Al_xGa_1−xAs, and In_1−xGa_xAs_yP_1−y. J. Appl. Phys. 66, 6030-6040 (1989)
[Calculation script (Python)]

doi:10.1063/1.343580 Optical dispersion relations for GaP, GaAs, GaSb, InP, InAs, InSb, Al x Ga1− x As, and In1− x Ga x As y P1− y, Journal of Applied Physics (1989)

Cite

Sadao Adachi. Optical dispersion relations for GaP, GaAs, GaSb, InP, InAs, InSb, Al x Ga1− x As, and In1− x Ga x As y P1− y. Journal of Applied Physics, 66, 6030-6040 (1989), doi:10.1063/1.343580; [Calculation script (Python)]; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

200 rows as published

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

InAs (Indium arsenide), Adachi 1989: n,k 0.207–12.4 µm: n and k versus wavelength
λ (µm)	n	k
0.20664	1.2743	1.581
0.20767	1.2771	1.5975
0.2087	1.2799	1.6144
0.20975	1.2829	1.6316
0.21081	1.2859	1.6493
0.21188	1.289	1.6673
0.21295	1.2923	1.6859
0.21404	1.2956	1.7049
0.21515	1.2991	1.7244
0.21626	1.3027	1.7444
0.21738	1.3065	1.765
0.21852	1.3104	1.7862
0.21967	1.3145	1.808
0.22083	1.3187	1.8305
0.222	1.3232	1.8537
0.22318	1.3279	1.8777
0.22438	1.3328	1.9024
0.22559	1.3381	1.928
0.22681	1.3436	1.9545
0.22805	1.3495	1.982
0.2293	1.3558	2.0106
0.23057	1.3625	2.0403
0.23184	1.3698	2.0711
0.23314	1.3776	2.1033
0.23444	1.386	2.1368
0.23577	1.3952	2.1718
0.2371	1.4052	2.2085
0.23845	1.4162	2.2468
0.23982	1.4284	2.287
0.2412	1.4418	2.3291
0.2426	1.4568	2.3734
0.24402	1.4735	2.42
0.24545	1.4922	2.4691
0.2469	1.5134	2.5207
0.24837	1.5373	2.5752
0.24985	1.5646	2.6326
0.25135	1.5959	2.693
0.25287	1.6317	2.7567
0.25441	1.673	2.8235
0.25597	1.7209	2.8936
0.25755	1.7765	2.9666
0.25914	1.8413	3.0422
0.26076	1.9169	3.1195
0.26239	2.0051	3.1975
0.26405	2.1081	3.2741
0.26573	2.2277	3.3468
0.26743	2.3656	3.4117
0.26915	2.5228	3.4637
0.27089	2.6987	3.4965
0.27266	2.8901	3.503
0.27445	3.0909	3.4765
0.27626	3.2916	3.4121
0.2781	3.4802	3.3091
0.27996	3.6446	3.1719
0.28185	3.7753	3.0098
0.28376	3.8678	2.8349
0.2857	3.9228	2.6592
0.28766	3.945	2.4922
0.28966	3.9411	2.3403
0.29168	3.9181	2.2064
0.29372	3.8823	2.0914
0.2958	3.8388	1.9943
0.29791	3.7914	1.9136
0.30005	3.7429	1.8474
0.30222	3.6951	1.7936
0.30442	3.6493	1.7505
0.30665	3.6064	1.7164
0.30891	3.5667	1.6899
0.31121	3.5304	1.6698
0.31354	3.4978	1.6551
0.31591	3.4688	1.645
0.31832	3.4432	1.6386
0.32076	3.4211	1.6355
0.32324	3.4023	1.635
0.32576	3.3865	1.6369
0.32831	3.3738	1.6407
0.33091	3.364	1.6462
0.33355	3.3569	1.653
0.33623	3.3524	1.661
0.33896	3.3504	1.67
0.34173	3.3508	1.6798
0.34454	3.3536	1.6903
0.34741	3.3585	1.7014
0.35032	3.3657	1.7131
0.35328	3.375	1.7251
0.35629	3.3863	1.7374
0.35935	3.3996	1.7501
0.36246	3.415	1.7629
0.36563	3.4322	1.7759
0.36886	3.4515	1.789
0.37214	3.4726	1.8022
0.37548	3.4957	1.8155
0.37888	3.5207	1.8287
0.38235	3.5477	1.8419
0.38588	3.5766	1.8551
0.38947	3.6076	1.8681
0.39313	3.6406	1.8811
0.39686	3.6756	1.8939
0.40066	3.7128	1.9066
0.40454	3.7521	1.9191
0.40849	3.7937	1.9314
0.41252	3.8375	1.9434
0.41663	3.8837	1.9553
0.42082	3.9324	1.9668
0.4251	3.9835	1.9781
0.42947	4.0372	1.9892
0.43392	4.0935	2.0
0.43847	4.1523	2.0106
0.44312	4.2137	2.021
0.44786	4.2774	2.0314
0.45271	4.3432	2.042
0.45767	4.4107	2.0528
0.46273	4.4791	2.0644
0.46791	4.5475	2.0772
0.4732	4.6142	2.092
0.47862	4.6775	2.1094
0.48416	4.735	2.1306
0.48983	4.7847	2.1566
0.49564	4.825	2.188
0.50158	4.8268	2.1631
0.50767	4.7112	1.8891
0.51391	4.6156	1.6652
0.5203	4.5271	1.4626
0.52686	4.4426	1.2698
0.53358	4.3618	1.08
0.54048	4.2855	0.88924
0.54756	4.2219	0.73438
0.55482	4.1859	0.72423
0.56228	4.1503	0.71363
0.56994	4.1155	0.70251
0.57782	4.0817	0.69082
0.58591	4.0491	0.67853
0.59424	4.0177	0.66564
0.60281	3.9875	0.65213
0.61162	3.9585	0.63802
0.6207	3.9306	0.62331
0.63005	3.9039	0.608
0.63969	3.8782	0.59212
0.64963	3.8536	0.57567
0.65988	3.8299	0.55867
0.67046	3.8072	0.54115
0.68138	3.7854	0.52312
0.69267	3.7644	0.5046
0.70433	3.7443	0.48563
0.7164	3.7249	0.46622
0.72889	3.7064	0.44643
0.74182	3.6886	0.42627
0.75521	3.6715	0.40579
0.7691	3.6552	0.38505
0.78351	3.6395	0.3641
0.79847	3.6245	0.34299
0.81402	3.6102	0.3218
0.83018	3.5965	0.30062
0.84699	3.5835	0.27953
0.8645	3.5712	0.25864
0.88275	3.5594	0.23808
0.90179	3.5483	0.21797
0.92166	3.5379	0.19849
0.94243	3.528	0.17982
0.96416	3.5187	0.16217
0.98691	3.5101	0.14578
1.0108	3.502	0.13093
1.0358	3.4945	0.11795
1.0621	3.4876	0.10721
1.0898	3.4813	0.09914
1.119	3.4755	0.094251
1.1497	3.4704	0.093127
1.1822	3.4659	0.09522
1.2166	3.4619	0.097538
1.2531	3.4584	0.099878
1.2918	3.4556	0.10221
1.3329	3.4534	0.10449
1.3768	3.4519	0.10665
1.4237	3.4511	0.10858
1.4739	3.4512	0.11009
1.5277	3.4521	0.1108
1.5857	3.4541	0.10971
1.6482	3.4501	0.10283
1.7158	3.4452	0.10687
1.7892	3.4438	0.11099
1.8692	3.4443	0.11519
1.9566	3.4465	0.11943
2.0527	3.4504	0.12361
2.1586	3.4562	0.12756
2.2761	3.4641	0.13103
2.4071	3.4748	0.13358
2.5541	3.4886	0.13448
2.7203	3.5064	0.13246
2.9095	3.5292	0.12505
3.1271	3.5584	0.10659
3.3798	3.596	0.054338
3.677	3.5337	0.0020848
4.0315	3.5098	0.0019108
4.4616	3.4958	0.0017304
4.9945	3.4861	0.0015477
5.6719	3.4788	0.0013638
6.5619	3.4732	0.0011793
7.7832	3.4689	0.00099444
9.5631	3.4655	0.00080944
12.398	3.463	0.00062436

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: —

InAs (Indium arsenide): all datasets

Experimental data

Models and simulations

Adachi 1989: n,k 0.207–12.4 µm n,k 0.2066–12.4 µm

About InAs (Indium arsenide)

Indium arsenide (InAs) is a compound semiconductor material that belongs to the III-V group of semiconductors. It is known for its high electron mobility and narrow energy band gap, making it particularly useful in high-speed electronics and optoelectronics. InAs is a key material in the manufacture of infrared detectors, including those used for night-vision systems, and is also used in the fabrication of quantum dot structures. The material can be grown via techniques such as molecular beam epitaxy (MBE) or metal-organic chemical vapor deposition (MOCVD), and is often used in conjunction with other III-V semiconductor materials like GaAs or InP to form heterostructures or quantum wells. It has applications in photodetectors, high-frequency transistors, and other optoelectronic devices. Care should be exercised when working with InAs due to the toxicity of arsenic.

More about InAs (Indium arsenide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/InAs/nk/Adachi.yml
ID: ds_be2a6ed83f1c
API: /v1/datasets/ds_be2a6ed83f1c

Plot