Optical constants

Refractive index of C₃H₇OH (Propanol)

Wang et al. 2018: iso-propanol, 50 °C; n,k 1.66–19.1 µm

Data: tabulated nk
Range: 1.66–19.06 µm
Points: 488
Temperature: 323 K
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.34308
Extinction coefficient k: 0.001854

Permittivity ε₁: 1.80386
Permittivity ε₂: 0.00498014

Absorption coefficient α: 41.4556 cm⁻¹
Penetration depth δ = λ/(2πk): 482444 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 0.12 µm⁻¹

Group index n_g: 0.66868
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 0.220612 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

# C3H7OH (Propanol): Wang et al. 2018: iso-propanol, 50 °C; n,k 1.66–19.1 µm
c3h7oh = ls.fetch_refractiveindex("organic", "propanol", "Wang-50C", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c3h7oh.range_nm)  # (1660, 19060) nm
eps = c3h7oh.eps([5620])  # 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_7e4deabae6a8/lightsmith"
c3h7oh = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c3h7oh.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (propanol/wang-2018-50c).

# ... load c3h7oh as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c3h7oh)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1660, stop_nm=19060, 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

Isopropanol, 50 °C.

Conditions

temperature: 323 K

References

C. C. Wang, J. Y. Tan, C. Y. Jing, L. H. Liu. Temperature-dependent optical constants of liquid isopropanol, n-butanol and n-decane. Appl. Opt. 57, 3303-3311 (2018) (Numerical data kindly provided by Chengchao Wang)

doi:10.1364/ao.57.003003 Temperature-dependent optical constants of liquid isopropanol, n-butanol, and n-decane, Applied Optics (2018)

Cite

C. C. Wang, J. Y. Tan, C. Y. Jing and L. H. Liu. Temperature-dependent optical constants of liquid isopropanol, n-butanol, and n-decane. Applied Optics, 57, 3003 (2018), doi:10.1364/ao.57.003003; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

488 rows as published

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

C3H7OH (Propanol), Wang et al. 2018: iso-propanol, 50 °C; n,k 1.66–19.1 µm: n and k versus wavelength
λ (µm)	n	k
1.66	1.345	2.07e-05
1.668	1.352	3.347e-05
1.679	1.357	6.447e-05
1.69	1.355	9.027e-05
1.699	1.356	8.806e-05
1.708	1.358	7.523e-05
1.719	1.358	7.199e-05
1.728	1.358	7.577e-05
1.74	1.357	7.233e-05
1.749	1.357	6.324e-05
1.759	1.358	5.623e-05
1.768	1.357	4.8e-05
1.778	1.356	3.648e-05
1.788	1.355	2.917e-05
1.798	1.353	2.835e-05
1.808	1.352	3.114e-05
1.818	1.35	3.43e-05
1.828	1.348	3.176e-05
1.839	1.346	2.467e-05
1.849	1.346	1.794e-05
1.86	1.346	1.501e-05
1.868	1.345	1.424e-05
1.879	1.345	1.474e-05
1.89	1.346	1.604e-05
1.898	1.348	1.762e-05
1.909	1.35	2.156e-05
1.917	1.351	2.371e-05
1.929	1.352	2.18e-05
1.938	1.352	1.826e-05
1.949	1.352	1.518e-05
1.958	1.352	1.603e-05
1.97	1.352	2.056e-05
1.979	1.35	2.289e-05
1.988	1.349	2.435e-05
1.997	1.349	2.859e-05
2.01	1.349	3.799e-05
2.019	1.349	4.623e-05
2.029	1.349	5.797e-05
2.038	1.35	7.479e-05
2.048	1.35	9.888e-05
2.058	1.349	0.0001288
2.067	1.348	0.0001585
2.077	1.347	0.0001817
2.087	1.345	0.0001922
2.097	1.344	0.0001899
2.108	1.342	0.0001807
2.118	1.341	0.0001685
2.128	1.341	0.0001535
2.139	1.342	0.0001381
2.15	1.342	0.0001252
2.157	1.343	0.0001185
2.168	1.344	0.0001109
2.179	1.345	0.0001061
2.19	1.345	0.000104
2.197	1.345	0.0001026
2.208	1.345	0.0001005
2.22	1.344	0.0001031
2.227	1.343	0.000111
2.239	1.343	0.0001488
2.246	1.343	0.0002087
2.258	1.343	0.0003705
2.266	1.342	0.0004854
2.278	1.342	0.0005393
2.286	1.342	0.000553
2.298	1.343	0.0006855
2.306	1.344	0.0008088
2.319	1.344	0.0008133
2.327	1.343	0.0007039
2.34	1.342	0.000545
2.348	1.342	0.000473
2.357	1.341	0.0004163
2.37	1.341	0.0003412
2.378	1.341	0.000306
2.387	1.34	0.0002982
2.396	1.34	0.000328
2.409	1.341	0.0004365
2.418	1.341	0.0004976
2.427	1.341	0.0005132
2.437	1.342	0.0005308
2.446	1.343	0.000574
2.46	1.343	0.0006319
2.469	1.343	0.000633
2.478	1.342	0.0005708
2.488	1.342	0.000471
2.498	1.341	0.000378
2.507	1.341	0.0003053
2.517	1.341	0.0002512
2.527	1.341	0.0002221
2.537	1.341	0.0002224
2.547	1.341	0.0002361
2.557	1.341	0.0002377
2.567	1.341	0.0002311
2.577	1.341	0.0002302
2.587	1.341	0.0002371
2.598	1.341	0.0002445
2.608	1.34	0.0002485
2.619	1.34	0.0002553
2.629	1.338	0.00027
2.64	1.337	0.000262
2.645	1.336	0.0002427
2.656	1.335	0.0001966
2.667	1.335	0.0001705
2.678	1.334	0.0001662
2.689	1.334	0.0001752
2.695	1.333	0.0001836
2.706	1.333	0.0002061
2.717	1.332	0.0002352
2.729	1.332	0.0002883
2.735	1.331	0.0003394
2.746	1.33	0.0005242
2.758	1.329	0.0008012
2.77	1.327	0.00108
2.776	1.325	0.00123
2.788	1.323	0.00164
2.8	1.32	0.01
2.806	1.317	0.01236
2.818	1.314	0.01561
2.824	1.314	0.01591
2.836	1.314	0.01578
2.849	1.315	0.01606
2.855	1.316	0.01779
2.868	1.314	0.02837
2.874	1.313	0.03257
2.887	1.311	0.03763
2.9	1.309	0.04576
2.906	1.311	0.04975
2.919	1.315	0.0558
2.926	1.316	0.05948
2.939	1.321	0.05946
2.946	1.327	0.05991
2.959	1.342	0.06457
2.966	1.347	0.06476
2.98	1.351	0.06884
2.987	1.354	0.07114
2.994	1.36	0.07079
3.007	1.365	0.06471
3.014	1.364	0.06224
3.029	1.369	0.05707
3.036	1.373	0.05519
3.05	1.378	0.0485
3.057	1.378	0.04428
3.064	1.379	0.03958
3.079	1.379	0.03045
3.086	1.378	0.03269
3.094	1.377	0.03479
3.108	1.376	0.03145
3.116	1.373	0.02895
3.123	1.371	0.02679
3.139	1.373	0.02149
3.146	1.372	0.01991
3.154	1.37	0.01888
3.169	1.367	0.01329
3.177	1.366	0.01048
3.185	1.365	0.00966
3.193	1.365	0.0106
3.208	1.363	0.00889
3.216	1.362	0.00727
3.224	1.361	0.0065
3.232	1.36	0.00589
3.249	1.356	0.00686
3.257	1.353	0.00845
3.265	1.35	0.00931
3.273	1.349	0.00877
3.29	1.347	0.00523
3.298	1.345	0.00566
3.307	1.341	0.00605
3.315	1.336	0.00811
3.324	1.329	0.01445
3.332	1.322	0.02102
3.349	1.307	0.05647
3.358	1.322	0.0829
3.367	1.358	0.09052
3.376	1.384	0.07255
3.384	1.39	0.04866
3.393	1.384	0.03662
3.402	1.377	0.03668
3.411	1.373	0.03863
3.429	1.375	0.03382
3.438	1.377	0.0304
3.447	1.377	0.02805
3.457	1.377	0.02845
3.466	1.379	0.03081
3.475	1.384	0.02976
3.484	1.388	0.02601
3.494	1.388	0.02114
3.503	1.388	0.018
3.513	1.387	0.01491
3.522	1.385	0.01206
3.532	1.382	0.01015
3.542	1.379	0.01038
3.551	1.376	0.01001
3.561	1.374	0.01042
3.571	1.372	0.00981
3.581	1.372	0.00607
3.591	1.373	0.00428
3.601	1.372	0.00583
3.611	1.371	0.00637
3.621	1.371	0.00597
3.631	1.37	0.00522
3.641	1.368	0.00508
3.651	1.366	0.00515
3.662	1.366	0.00509
3.672	1.368	0.00511
3.682	1.369	0.00555
3.693	1.369	0.00571
3.704	1.37	0.00501
3.714	1.368	0.00445
3.725	1.365	0.00442
3.736	1.363	0.00486
3.746	1.363	0.00577
3.757	1.364	0.00551
3.768	1.364	0.00474
3.779	1.366	0.00431
3.79	1.366	0.00394
3.801	1.366	0.00369
3.812	1.363	0.00357
3.824	1.362	0.00358
3.835	1.363	0.00366
3.846	1.363	0.00375
3.858	1.362	0.00379
3.869	1.361	0.00371
3.881	1.36	0.00348
3.893	1.36	0.00316
3.904	1.36	0.00284
3.916	1.36	0.00262
3.928	1.361	0.00258
3.94	1.362	0.00265
3.952	1.361	0.00275
3.964	1.36	0.00279
3.976	1.359	0.00268
3.988	1.358	0.00246
4.001	1.357	0.00222
4.013	1.359	0.00204
4.026	1.36	0.00194
4.038	1.36	0.00188
4.051	1.359	0.00177
4.063	1.359	0.00158
4.076	1.359	0.0014
4.089	1.36	0.00131
4.102	1.361	0.00134
4.115	1.36	0.00149
4.128	1.357	0.00171
4.141	1.356	0.00188
4.155	1.358	0.00193
4.168	1.358	0.00183
4.181	1.358	0.00165
4.195	1.356	0.00145
4.209	1.353	0.00125
4.222	1.351	0.00106
4.236	1.353	0.0008769
4.25	1.355	0.0007688
4.264	1.353	0.0007136
4.278	1.351	0.0007033
4.292	1.351	0.0007533
4.306	1.353	0.0008196
4.321	1.354	0.0008702
4.335	1.355	0.0008835
4.35	1.356	0.0008874
4.364	1.356	0.0008822
4.379	1.357	0.0008537
4.394	1.357	0.0008112
4.409	1.356	0.000773
4.424	1.356	0.0007399
4.439	1.356	0.0006981
4.454	1.356	0.0006595
4.47	1.356	0.0006503
4.485	1.355	0.0006875
4.501	1.354	0.0007637
4.516	1.353	0.0008531
4.532	1.353	0.0009487
4.548	1.354	0.00103
4.564	1.355	0.00102
4.58	1.354	0.0008845
4.597	1.353	0.0007054
4.613	1.354	0.0005604
4.629	1.353	0.0004841
4.646	1.352	0.0004499
4.663	1.353	0.0004393
4.68	1.354	0.0004485
4.696	1.353	0.0004767
4.714	1.352	0.0005239
4.731	1.353	0.0005683
4.748	1.351	0.0005857
4.766	1.351	0.0006093
4.783	1.351	0.0006809
4.801	1.351	0.0007762
4.819	1.352	0.000815
4.837	1.352	0.0007931
4.855	1.352	0.000759
4.873	1.351	0.0007012
4.891	1.351	0.0006169
4.91	1.35	0.0005365
4.929	1.349	0.0004848
4.947	1.349	0.0004551
4.966	1.35	0.0004466
4.985	1.349	0.0004565
5.005	1.349	0.0004895
5.024	1.351	0.0005656
5.044	1.352	0.0006728
5.063	1.352	0.0007364
5.083	1.35	0.0007272
5.103	1.349	0.000713
5.123	1.35	0.0007245
5.144	1.35	0.0007595
5.164	1.35	0.0008241
5.185	1.351	0.0009358
5.206	1.35	0.00112
5.227	1.351	0.00144
5.248	1.349	0.00177
5.269	1.348	0.00173
5.291	1.347	0.00142
5.312	1.347	0.00119
5.334	1.348	0.00107
5.356	1.347	0.0009967
5.379	1.346	0.0009439
5.401	1.345	0.0009134
5.424	1.345	0.0009239
5.446	1.347	0.0009479
5.469	1.348	0.0009582
5.492	1.347	0.0009724
5.516	1.346	0.00101
5.539	1.346	0.00108
5.563	1.345	0.00116
5.587	1.342	0.00129
5.611	1.342	0.00162
5.636	1.345	0.00227
5.66	1.345	0.0028
5.685	1.344	0.00247
5.71	1.344	0.00206
5.736	1.344	0.00184
5.761	1.342	0.00173
5.787	1.342	0.00167
5.813	1.342	0.00161
5.839	1.343	0.00155
5.865	1.343	0.00151
5.892	1.342	0.00151
5.919	1.338	0.00156
5.946	1.337	0.00163
5.973	1.337	0.0017
6.001	1.338	0.00174
6.029	1.338	0.00177
6.057	1.337	0.00182
6.086	1.338	0.00186
6.114	1.339	0.00192
6.143	1.34	0.00197
6.173	1.339	0.00202
6.202	1.338	0.0021
6.232	1.335	0.0022
6.262	1.334	0.00234
6.292	1.335	0.00247
6.323	1.335	0.00262
6.354	1.333	0.00279
6.385	1.332	0.00302
6.417	1.328	0.00333
6.449	1.327	0.0037
6.481	1.329	0.00411
6.514	1.329	0.00466
6.547	1.326	0.00521
6.58	1.322	0.00587
6.613	1.321	0.00673
6.647	1.317	0.01113
6.682	1.312	0.01197
6.716	1.309	0.01507
6.751	1.307	0.02288
6.787	1.308	0.03729
6.822	1.322	0.05004
6.858	1.334	0.04145
6.895	1.335	0.02681
6.932	1.33	0.0246
6.969	1.325	0.02803
7.007	1.324	0.03202
7.045	1.323	0.03868
7.083	1.324	0.04477
7.122	1.327	0.04669
7.161	1.321	0.04269
7.201	1.311	0.055
7.241	1.326	0.07874
7.282	1.36	0.07996
7.323	1.375	0.05849
7.365	1.37	0.03795
7.407	1.355	0.03159
7.45	1.35	0.03513
7.493	1.352	0.03277
7.536	1.348	0.03547
7.58	1.346	0.04641
7.625	1.354	0.05299
7.67	1.364	0.05441
7.716	1.371	0.05153
7.762	1.374	0.04338
7.809	1.372	0.03304
7.856	1.367	0.02303
7.904	1.36	0.02032
7.952	1.356	0.01707
8.001	1.353	0.01472
8.051	1.351	0.00907
8.101	1.344	0.00998
8.152	1.341	0.00909
8.204	1.342	0.00602
8.256	1.337	0.00237
8.309	1.328	0.00488
8.363	1.322	0.00881
8.417	1.315	0.01266
8.472	1.296	0.02286
8.528	1.277	0.05367
8.584	1.288	0.102
8.642	1.332	0.1168
8.7	1.345	0.09568
8.758	1.335	0.09552
8.818	1.341	0.1238
8.878	1.377	0.1289
8.939	1.4	0.1061
9.002	1.408	0.09743
9.065	1.421	0.09494
9.128	1.43	0.07111
9.193	1.425	0.04863
9.259	1.414	0.03527
9.325	1.403	0.02645
9.393	1.396	0.02051
9.462	1.389	0.01682
9.531	1.384	0.01623
9.602	1.379	0.01321
9.673	1.375	0.01244
9.746	1.371	0.01503
9.82	1.362	0.01214
9.895	1.356	0.01154
9.971	1.353	0.00891
10.04	1.347	0.00775
10.12	1.339	0.00563
10.2	1.327	0.00532
10.28	1.306	0.01846
10.37	1.27	0.05692
10.45	1.284	0.1485
10.53	1.434	0.1587
10.62	1.481	0.07943
10.71	1.456	0.03629
10.8	1.427	0.02246
10.89	1.408	0.01863
10.98	1.397	0.0141
11.07	1.392	0.01044
11.17	1.387	0.00701
11.27	1.385	0.00669
11.37	1.38	0.00452
11.47	1.373	0.00813
11.57	1.368	0.01591
11.67	1.364	0.01475
11.78	1.364	0.01077
11.89	1.365	0.00701
12.0	1.354	0.00715
12.11	1.338	0.03087
12.22	1.359	0.06409
12.34	1.395	0.04799
12.46	1.396	0.01618
12.58	1.381	0.01021
12.7	1.374	0.01176
12.83	1.37	0.0086
12.96	1.361	0.01388
13.09	1.358	0.0184
13.22	1.363	0.0229
13.36	1.365	0.02365
13.5	1.364	0.02664
13.64	1.353	0.04303
13.79	1.353	0.04843
13.93	1.363	0.03598
14.08	1.364	0.03022
14.24	1.362	0.03797
14.4	1.361	0.04644
14.56	1.36	0.04294
14.73	1.367	0.03728
14.89	1.376	0.04156
15.07	1.382	0.04502
15.25	1.384	0.04903
15.43	1.387	0.04836
15.61	1.376	0.05776
15.8	1.365	0.05356
16.0	1.374	0.04462
16.2	1.394	0.02577
16.4	1.408	0.01648
16.61	1.398	0.03006
16.83	1.402	0.03752
17.05	1.405	0.00215
17.28	1.384	0.02893
17.51	1.393	0.07435
17.75	1.353	0.08656
18.0	1.398	0.08897
18.25	1.424	0.0644
18.51	1.406	0.1358
18.78	1.427	0.1539
19.06	1.555	0.07865

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: —

C₃H₇OH (Propanol): all datasets

About C3H7OH (Propanol)

Propanol (C₃H₈O), also commonly referred to as propyl alcohol, comes in two isomeric forms: n-propanol (or 1-propanol) and isopropanol (or 2-propanol). These alcohols are clear, colorless liquids that are miscible with water and have a characteristic alcoholic odor. Both forms of propanol are used as solvents in the pharmaceutical, cosmetic, and chemical industries. n-Propanol is often employed in the manufacture of antiseptics, detergents, and disinfectants, whereas isopropanol, popularly known as rubbing alcohol, is used for its antiseptic properties and as a cleaning agent. In optics, the refractive properties of propanol can be explored when it's used as a medium or in conjunction with other materials to modify light behavior. Chemical formula (1-Propanol): CH₃CH₂CH₂OH Chemical formula (Isopropanol): (CH₃)₂CHOH

More about C3H7OH (Propanol) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/organic/C3H8O - propanol/nk/Wang-50C.yml
ID: ds_7e4deabae6a8
API: /v1/datasets/ds_7e4deabae6a8

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