Optical constants

Refractive index of C₃H₇OH (Propanol)

Wang et al. 2018: iso-propanol, 70 °C; n,k 1.66–19.1 µm

Data: tabulated nk
Range: 1.66–19.06 µm
Points: 488
Temperature: 343 K
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.336
Extinction coefficient k: 0.001844

Permittivity ε₁: 1.78489
Permittivity ε₂: 0.00492717

Absorption coefficient α: 41.232 cm⁻¹
Penetration depth δ = λ/(2πk): 485060 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 0 µm⁻¹

Group index n_g: 1.336
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, 70 °C; n,k 1.66–19.1 µm
c3h7oh = ls.fetch_refractiveindex("organic", "propanol", "Wang-70C", 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_d3f7850f97c3/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-2018-70c).

# ... 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, 70 °C.

Conditions

temperature: 343 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, 70 °C; n,k 1.66–19.1 µm: n and k versus wavelength
λ (µm)	n	k
1.66	1.387	2.446e-05
1.668	1.382	3.682e-05
1.679	1.377	6.55e-05
1.69	1.37	9.021e-05
1.699	1.369	8.843e-05
1.708	1.366	7.536e-05
1.719	1.363	7.205e-05
1.728	1.362	7.591e-05
1.74	1.362	7.266e-05
1.749	1.362	6.383e-05
1.759	1.363	5.662e-05
1.768	1.362	4.815e-05
1.778	1.361	3.714e-05
1.788	1.358	2.944e-05
1.798	1.357	2.832e-05
1.808	1.355	3.154e-05
1.818	1.353	3.428e-05
1.828	1.35	3.127e-05
1.839	1.348	2.455e-05
1.849	1.347	1.835e-05
1.86	1.345	1.517e-05
1.868	1.343	1.389e-05
1.879	1.344	1.422e-05
1.89	1.346	1.538e-05
1.898	1.347	1.675e-05
1.909	1.348	2.092e-05
1.917	1.349	2.337e-05
1.929	1.349	2.18e-05
1.938	1.349	1.809e-05
1.949	1.349	1.459e-05
1.958	1.35	1.529e-05
1.97	1.349	1.978e-05
1.979	1.347	2.226e-05
1.988	1.345	2.369e-05
1.997	1.345	2.82e-05
2.01	1.345	3.754e-05
2.019	1.345	4.548e-05
2.029	1.345	5.676e-05
2.038	1.345	7.392e-05
2.048	1.344	9.82e-05
2.058	1.344	0.0001278
2.067	1.344	0.0001572
2.077	1.343	0.0001802
2.087	1.342	0.0001913
2.097	1.341	0.0001899
2.108	1.341	0.0001808
2.118	1.341	0.000168
2.128	1.341	0.0001531
2.139	1.341	0.0001379
2.15	1.341	0.0001253
2.157	1.342	0.0001187
2.168	1.343	0.0001101
2.179	1.343	0.0001048
2.19	1.343	0.0001033
2.197	1.342	0.000102
2.208	1.341	9.986e-05
2.22	1.341	0.0001023
2.227	1.34	0.0001102
2.239	1.34	0.0001481
2.246	1.34	0.000208
2.258	1.34	0.0003699
2.266	1.339	0.0004846
2.278	1.339	0.0005382
2.286	1.34	0.000552
2.298	1.341	0.000685
2.306	1.341	0.000808
2.319	1.341	0.0008126
2.327	1.34	0.0007033
2.34	1.34	0.0005441
2.348	1.339	0.0004715
2.357	1.339	0.0004149
2.37	1.338	0.0003407
2.378	1.338	0.0003057
2.387	1.338	0.0002979
2.396	1.338	0.0003274
2.409	1.339	0.0004355
2.418	1.339	0.0004964
2.427	1.339	0.0005124
2.437	1.339	0.0005303
2.446	1.339	0.0005736
2.46	1.339	0.0006308
2.469	1.338	0.0006317
2.478	1.337	0.0005696
2.488	1.336	0.0004693
2.498	1.335	0.0003761
2.507	1.334	0.0003035
2.517	1.334	0.0002497
2.527	1.334	0.0002206
2.537	1.334	0.0002209
2.547	1.335	0.0002348
2.557	1.335	0.0002367
2.567	1.336	0.0002296
2.577	1.336	0.0002289
2.587	1.337	0.0002361
2.598	1.337	0.0002433
2.608	1.337	0.0002474
2.619	1.336	0.0002549
2.629	1.336	0.0002698
2.64	1.335	0.0002613
2.645	1.335	0.0002418
2.656	1.334	0.0001956
2.667	1.334	0.00017
2.678	1.333	0.0001657
2.689	1.332	0.000175
2.695	1.331	0.0001833
2.706	1.331	0.0002054
2.717	1.331	0.0002342
2.729	1.33	0.0002876
2.735	1.329	0.0003387
2.746	1.328	0.0005236
2.758	1.326	0.0008004
2.77	1.324	0.00108
2.776	1.322	0.00123
2.788	1.32	0.00164
2.8	1.317	0.00733
2.806	1.314	0.00799
2.818	1.312	0.01176
2.824	1.312	0.01375
2.836	1.312	0.01913
2.849	1.313	0.01997
2.855	1.313	0.02167
2.868	1.313	0.03038
2.874	1.314	0.03323
2.887	1.312	0.03923
2.9	1.313	0.04599
2.906	1.314	0.04808
2.919	1.32	0.05299
2.926	1.323	0.05763
2.939	1.331	0.05888
2.946	1.336	0.05578
2.959	1.341	0.05964
2.966	1.344	0.05883
2.98	1.348	0.05947
2.987	1.35	0.0612
2.994	1.354	0.0602
3.007	1.359	0.05448
3.014	1.36	0.05228
3.029	1.364	0.0468
3.036	1.367	0.04327
3.05	1.369	0.03777
3.057	1.37	0.03452
3.064	1.37	0.0309
3.079	1.367	0.02347
3.086	1.365	0.02285
3.094	1.364	0.02232
3.108	1.363	0.02226
3.116	1.363	0.02303
3.123	1.362	0.02266
3.139	1.36	0.01727
3.146	1.359	0.01522
3.154	1.358	0.01493
3.169	1.358	0.0103
3.177	1.359	0.00768
3.185	1.358	0.00571
3.193	1.357	0.00491
3.208	1.353	0.00422
3.216	1.351	0.00426
3.224	1.349	0.00477
3.232	1.349	0.00471
3.249	1.347	0.00405
3.257	1.345	0.00627
3.265	1.344	0.00789
3.273	1.343	0.00773
3.29	1.339	0.00257
3.298	1.336	0.00193
3.307	1.334	0.00311
3.315	1.329	0.00665
3.324	1.323	0.01239
3.332	1.313	0.01943
3.349	1.297	0.05517
3.358	1.313	0.08045
3.367	1.347	0.08839
3.376	1.373	0.07159
3.384	1.378	0.04919
3.393	1.371	0.03598
3.402	1.365	0.03366
3.411	1.364	0.03545
3.429	1.368	0.03339
3.438	1.369	0.02959
3.447	1.37	0.02732
3.457	1.369	0.02802
3.466	1.371	0.03054
3.475	1.375	0.03053
3.484	1.378	0.02617
3.494	1.379	0.02011
3.503	1.378	0.01383
3.513	1.376	0.01125
3.522	1.374	0.01128
3.532	1.371	0.01099
3.542	1.368	0.01127
3.551	1.367	0.00869
3.561	1.365	0.00693
3.571	1.363	0.00673
3.581	1.364	0.00656
3.591	1.364	0.00469
3.601	1.364	0.00416
3.611	1.362	0.00637
3.621	1.361	0.00597
3.631	1.36	0.00521
3.641	1.359	0.00507
3.651	1.357	0.00515
3.662	1.357	0.00509
3.672	1.36	0.00511
3.682	1.361	0.00554
3.693	1.361	0.0057
3.704	1.361	0.00501
3.714	1.36	0.00445
3.725	1.359	0.00441
3.736	1.357	0.00486
3.746	1.356	0.00576
3.757	1.356	0.00551
3.768	1.356	0.00474
3.779	1.358	0.0043
3.79	1.358	0.00394
3.801	1.356	0.00368
3.812	1.355	0.00357
3.824	1.355	0.00358
3.835	1.355	0.00366
3.846	1.354	0.00374
3.858	1.353	0.00379
3.869	1.353	0.00371
3.881	1.355	0.00348
3.893	1.354	0.00316
3.904	1.353	0.00283
3.916	1.352	0.00262
3.928	1.353	0.00257
3.94	1.353	0.00265
3.952	1.352	0.00275
3.964	1.352	0.00279
3.976	1.351	0.00268
3.988	1.349	0.00246
4.001	1.349	0.00221
4.013	1.351	0.00203
4.026	1.353	0.00193
4.038	1.353	0.00187
4.051	1.352	0.00177
4.063	1.351	0.00158
4.076	1.351	0.0014
4.089	1.352	0.0013
4.102	1.352	0.00134
4.115	1.352	0.00149
4.128	1.35	0.00171
4.141	1.35	0.00188
4.155	1.35	0.00193
4.168	1.351	0.00183
4.181	1.351	0.00165
4.195	1.349	0.00145
4.209	1.349	0.00125
4.222	1.349	0.00105
4.236	1.348	0.0008748
4.25	1.346	0.0007654
4.264	1.345	0.0007103
4.278	1.345	0.0007008
4.292	1.347	0.0007516
4.306	1.348	0.0008176
4.321	1.348	0.0008677
4.335	1.348	0.0008808
4.35	1.349	0.0008847
4.364	1.35	0.0008797
4.379	1.351	0.0008513
4.394	1.351	0.0008087
4.409	1.35	0.0007704
4.424	1.349	0.0007373
4.439	1.349	0.0006953
4.454	1.349	0.0006566
4.47	1.346	0.0006467
4.485	1.346	0.0006842
4.501	1.347	0.0007609
4.516	1.346	0.0008504
4.532	1.346	0.0009455
4.548	1.346	0.00103
4.564	1.347	0.00101
4.58	1.347	0.0008818
4.597	1.346	0.0007026
4.613	1.346	0.0005575
4.629	1.346	0.0004812
4.646	1.345	0.000447
4.663	1.346	0.0004366
4.68	1.346	0.0004454
4.696	1.346	0.0004737
4.714	1.345	0.0005211
4.731	1.346	0.0005655
4.748	1.345	0.000583
4.766	1.345	0.0006067
4.783	1.344	0.000678
4.801	1.343	0.0007728
4.819	1.343	0.0008115
4.837	1.343	0.0007896
4.855	1.344	0.0007555
4.873	1.344	0.0006979
4.891	1.343	0.0006138
4.91	1.344	0.0005338
4.929	1.343	0.0004822
4.947	1.342	0.0004521
4.966	1.342	0.0004433
4.985	1.342	0.0004535
5.005	1.343	0.0004867
5.024	1.343	0.0005621
5.044	1.343	0.000669
5.063	1.344	0.0007329
5.083	1.343	0.0007241
5.103	1.343	0.00071
5.123	1.342	0.0007208
5.144	1.34	0.0007553
5.164	1.339	0.0008195
5.185	1.34	0.0009311
5.206	1.34	0.00112
5.227	1.341	0.00143
5.248	1.34	0.00176
5.269	1.339	0.00172
5.291	1.338	0.00142
5.312	1.34	0.00118
5.334	1.339	0.00106
5.356	1.339	0.0009929
5.379	1.338	0.00094
5.401	1.338	0.0009098
5.424	1.339	0.0009209
5.446	1.34	0.0009443
5.469	1.34	0.0009541
5.492	1.339	0.0009688
5.516	1.338	0.00101
5.539	1.337	0.00108
5.563	1.337	0.00116
5.587	1.337	0.00129
5.611	1.336	0.00161
5.636	1.336	0.00226
5.66	1.336	0.00279
5.685	1.337	0.00247
5.71	1.337	0.00205
5.736	1.336	0.00184
5.761	1.335	0.00173
5.787	1.334	0.00166
5.813	1.336	0.00161
5.839	1.337	0.00155
5.865	1.337	0.00151
5.892	1.335	0.00151
5.919	1.332	0.00156
5.946	1.331	0.00162
5.973	1.331	0.00169
6.001	1.332	0.00174
6.029	1.332	0.00177
6.057	1.33	0.00182
6.086	1.331	0.00186
6.114	1.333	0.00192
6.143	1.333	0.00197
6.173	1.332	0.00202
6.202	1.332	0.00209
6.232	1.328	0.0022
6.262	1.326	0.00233
6.292	1.328	0.00247
6.323	1.33	0.00261
6.354	1.329	0.00279
6.385	1.328	0.00302
6.417	1.324	0.00333
6.449	1.32	0.00369
6.481	1.321	0.00411
6.514	1.32	0.00466
6.547	1.319	0.0052
6.58	1.314	0.00586
6.613	1.311	0.00672
6.647	1.31	0.00775
6.682	1.308	0.01158
6.716	1.304	0.01481
6.751	1.302	0.02155
6.787	1.305	0.03445
6.822	1.316	0.04417
6.858	1.326	0.03938
6.895	1.329	0.03018
6.932	1.325	0.02697
6.969	1.317	0.02901
7.007	1.315	0.03233
7.045	1.314	0.03576
7.083	1.314	0.03875
7.122	1.315	0.04267
7.161	1.312	0.04816
7.201	1.307	0.06151
7.241	1.322	0.08031
7.282	1.349	0.07761
7.323	1.362	0.05534
7.365	1.359	0.03752
7.407	1.349	0.03111
7.45	1.344	0.03493
7.493	1.344	0.03455
7.536	1.339	0.03688
7.58	1.336	0.04333
7.625	1.341	0.05076
7.67	1.35	0.05281
7.716	1.359	0.05095
7.762	1.364	0.04154
7.809	1.365	0.03384
7.856	1.361	0.02716
7.904	1.355	0.02322
7.952	1.347	0.02164
8.001	1.344	0.01764
8.051	1.344	0.0156
8.101	1.338	0.01601
8.152	1.33	0.01259
8.204	1.33	0.00646
8.256	1.33	0.00672
8.309	1.321	0.01433
8.363	1.314	0.0191
8.417	1.309	0.01776
8.472	1.294	0.02241
8.528	1.273	0.05389
8.584	1.282	0.09552
8.642	1.319	0.1061
8.7	1.336	0.09356
8.758	1.331	0.09434
8.818	1.339	0.1112
8.878	1.372	0.1141
8.939	1.387	0.09381
9.002	1.392	0.09114
9.065	1.404	0.0925
9.128	1.414	0.07602
9.193	1.41	0.05532
9.259	1.403	0.04155
9.325	1.396	0.03054
9.393	1.387	0.02078
9.462	1.376	0.0163
9.531	1.372	0.01616
9.602	1.372	0.01125
9.673	1.368	0.00939
9.746	1.361	0.01265
9.82	1.355	0.01421
9.895	1.35	0.01261
9.971	1.345	0.00829
10.04	1.339	0.00598
10.12	1.332	0.0047
10.2	1.319	0.00919
10.28	1.298	0.01673
10.37	1.266	0.0507
10.45	1.279	0.1402
10.53	1.411	0.1678
10.62	1.461	0.09381
10.71	1.444	0.04515
10.8	1.419	0.02576
10.89	1.402	0.01906
10.98	1.392	0.01455
11.07	1.385	0.00867
11.17	1.382	0.00571
11.27	1.38	0.00695
11.37	1.372	0.00817
11.47	1.36	0.00639
11.57	1.355	0.00828
11.67	1.355	0.00627
11.78	1.358	0.00307
11.89	1.357	0.00241
12.0	1.345	0.0065
12.11	1.332	0.02544
12.22	1.348	0.05987
12.34	1.377	0.04653
12.46	1.381	0.01187
12.58	1.373	0.00715
12.7	1.365	0.01129
12.83	1.363	0.00982
12.96	1.356	0.01213
13.09	1.35	0.01278
13.22	1.355	0.01823
13.36	1.361	0.017
13.5	1.359	0.01946
13.64	1.344	0.03404
13.79	1.344	0.0352
13.93	1.354	0.02332
14.08	1.347	0.02344
14.24	1.341	0.03311
14.4	1.341	0.04256
14.56	1.343	0.03892
14.73	1.353	0.02453
14.89	1.362	0.01808
15.07	1.363	0.03603
15.25	1.363	0.04427
15.43	1.372	0.03209
15.61	1.376	0.0356
15.8	1.374	0.04512
16.0	1.377	0.04257
16.2	1.39	0.04033
16.4	1.406	0.04322
16.61	1.386	0.04595
16.83	1.383	0.01227
17.05	1.381	0.01604
17.28	1.391	0.03066
17.51	1.389	0.07813
17.75	1.367	0.1035
18.0	1.36	0.1003
18.25	1.376	0.05837
18.51	1.309	0.1277
18.78	1.236	0.1502
19.06	1.281	0.708

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-70C.yml
ID: ds_d3f7850f97c3
API: /v1/datasets/ds_d3f7850f97c3

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