Optical constants

Refractive index of C₅H₁₁OH (Pentanol, amyl alcohol)

Moutzouris et al. 2013: Isoamyl alcohol; n 0.450–1.55 µm

Data: formula 3
Range: 0.45–1.551 µm
Temperature: 300 K
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.40423
Extinction coefficient k: 0

Permittivity ε₁: 1.97185
Permittivity ε₂: 0

Absorption coefficient α: 0 cm⁻¹
Penetration depth δ = λ/(2πk): — nm

Abbe number V_d: 60.105
Chromatic dispersion dn/dλ: -0.0327933 µm⁻¹

Group index n_g: 1.4235
Group velocity dispersion: 67.2603 fs²/mm

Dispersion parameter D: -366.941 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

# C5H11OH (Pentanol, amyl alcohol): Moutzouris et al. 2013: Isoamyl alcohol; n 0.450–1.55 µm
c5h11oh = ls.fetch_refractiveindex("organic", "pentanol", "Moutzouris-iso", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c5h11oh.range_nm)  # (450, 1551) nm
eps = c5h11oh.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_ec607efc8dcc/lightsmith"
c5h11oh = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c5h11oh.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pentanol/moutzouris-2013-iso).

# ... load c5h11oh as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c5h11oh)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=450, 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.

Dispersion formula

Polynomial (formula 3), λ in µm

n^{2} = 1.942931564 - 0.00128447 λ^{2.0} + 0.01305097 λ^{- 2.0} - 0.001683118 λ^{- 4.0} + 0.000233976 λ^{- 6.0}

Valid from 0.45 to 1.551 µm.

Coefficients as stored

C_i	Value
C1	1.942931564
C2	-0.00128447
C3	2.0
C4	0.01305097
C5	-2.0
C6	-0.001683118
C7	-4.0
C8	0.000233976
C9	-6.0

Comments and conditions

Isoamyl alcohol; 300 K (27 °C).

Conditions

temperature: 300 K

References

K. Moutzouris, M. Papamichael, S. C. Betsis, I. Stavrakas, G. Hloupis, D. Triantis. Refractive, dispersive and thermo-optic properties of twelve organic solvents in the visible and near-infrared. Appl. Phys. B 116, 617-622 (2013)

doi:10.1007/s00340-013-5744-3 Refractive, dispersive and thermo-optic properties of twelve organic solvents in the visible and near-infrared, Applied Physics B (2013)

Cite

Konstantinos Moutzouris et al.. Refractive, dispersive and thermo-optic properties of twelve organic solvents in the visible and near-infrared. Applied Physics B, 116, 617-622 (2013), doi:10.1007/s00340-013-5744-3; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 400 wavelengths, the same grid as the API and the library

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

C5H11OH (Pentanol, amyl alcohol), Moutzouris et al. 2013: Isoamyl alcohol; n 0.450–1.55 µm: n and k versus wavelength
λ (µm)	n
0.45	1.41218
0.451398	1.412034
0.4528	1.411889
0.454206	1.411747
0.455617	1.411606
0.457032	1.411468
0.458452	1.411331
0.459876	1.411196
0.461304	1.411063
0.462737	1.410932
0.464174	1.410803
0.465616	1.410675
0.467062	1.410549
0.468513	1.410424
0.469968	1.410301
0.471428	1.41018
0.472892	1.41006
0.474361	1.409942
0.475835	1.409825
0.477313	1.40971
0.478795	1.409596
0.480282	1.409484
0.481774	1.409373
0.483271	1.409263
0.484772	1.409154
0.486277	1.409047
0.487788	1.408942
0.489303	1.408837
0.490823	1.408734
0.492347	1.408631
0.493877	1.40853
0.495411	1.40843
0.496949	1.408332
0.498493	1.408234
0.500041	1.408138
0.501595	1.408042
0.503153	1.407948
0.504715	1.407854
0.506283	1.407762
0.507856	1.407671
0.509433	1.40758
0.511015	1.407491
0.512603	1.407403
0.514195	1.407315
0.515792	1.407228
0.517394	1.407143
0.519001	1.407058
0.520613	1.406974
0.52223	1.40689
0.523852	1.406808
0.52548	1.406727
0.527112	1.406646
0.528749	1.406566
0.530391	1.406487
0.532039	1.406408
0.533691	1.40633
0.535349	1.406253
0.537012	1.406177
0.53868	1.406102
0.540353	1.406027
0.542031	1.405953
0.543715	1.405879
0.545404	1.405806
0.547098	1.405734
0.548797	1.405662
0.550502	1.405591
0.552212	1.405521
0.553927	1.405451
0.555647	1.405382
0.557373	1.405314
0.559105	1.405246
0.560841	1.405178
0.562583	1.405111
0.564331	1.405045
0.566084	1.404979
0.567842	1.404914
0.569606	1.404849
0.571375	1.404785
0.57315	1.404721
0.57493	1.404658
0.576716	1.404595
0.578507	1.404533
0.580304	1.404471
0.582106	1.40441
0.583914	1.404349
0.585728	1.404288
0.587547	1.404229
0.589372	1.404169
0.591203	1.40411
0.593039	1.404051
0.594881	1.403993
0.596729	1.403935
0.598583	1.403878
0.600442	1.40382
0.602307	1.403764
0.604178	1.403707
0.606054	1.403652
0.607937	1.403596
0.609825	1.403541
0.611719	1.403486
0.613619	1.403432
0.615525	1.403378
0.617437	1.403324
0.619355	1.40327
0.621279	1.403217
0.623209	1.403165
0.625144	1.403112
0.627086	1.40306
0.629034	1.403009
0.630988	1.402957
0.632948	1.402906
0.634914	1.402855
0.636886	1.402805
0.638864	1.402755
0.640848	1.402705
0.642839	1.402655
0.644835	1.402606
0.646838	1.402557
0.648847	1.402508
0.650863	1.40246
0.652885	1.402412
0.654912	1.402364
0.656947	1.402316
0.658987	1.402269
0.661034	1.402222
0.663087	1.402175
0.665147	1.402129
0.667213	1.402083
0.669285	1.402037
0.671364	1.401991
0.673449	1.401945
0.675541	1.4019
0.67764	1.401855
0.679744	1.40181
0.681856	1.401766
0.683974	1.401721
0.686098	1.401677
0.688229	1.401633
0.690367	1.40159
0.692511	1.401546
0.694662	1.401503
0.69682	1.40146
0.698984	1.401418
0.701155	1.401375
0.703333	1.401333
0.705518	1.401291
0.707709	1.401249
0.709907	1.401207
0.712112	1.401166
0.714324	1.401125
0.716543	1.401084
0.718769	1.401043
0.721001	1.401002
0.723241	1.400962
0.725487	1.400921
0.727741	1.400881
0.730001	1.400841
0.732269	1.400802
0.734543	1.400762
0.736825	1.400723
0.739113	1.400684
0.741409	1.400645
0.743712	1.400606
0.746022	1.400568
0.748339	1.400529
0.750664	1.400491
0.752995	1.400453
0.755334	1.400415
0.75768	1.400378
0.760034	1.40034
0.762394	1.400303
0.764762	1.400266
0.767138	1.400229
0.769521	1.400192
0.771911	1.400155
0.774308	1.400119
0.776713	1.400082
0.779126	1.400046
0.781546	1.40001
0.783974	1.399975
0.786409	1.399939
0.788851	1.399903
0.791302	1.399868
0.793759	1.399833
0.796225	1.399798
0.798698	1.399763
0.801179	1.399728
0.803667	1.399694
0.806164	1.399659
0.808668	1.399625
0.811179	1.399591
0.813699	1.399557
0.816226	1.399523
0.818762	1.399489
0.821305	1.399456
0.823856	1.399422
0.826415	1.399389
0.828982	1.399356
0.831557	1.399323
0.83414	1.39929
0.83673	1.399257
0.839329	1.399225
0.841936	1.399192
0.844552	1.39916
0.847175	1.399128
0.849806	1.399096
0.852446	1.399064
0.855094	1.399032
0.85775	1.399001
0.860414	1.398969
0.863086	1.398938
0.865767	1.398907
0.868456	1.398876
0.871154	1.398845
0.87386	1.398814
0.876574	1.398783
0.879297	1.398753
0.882028	1.398722
0.884768	1.398692
0.887516	1.398662
0.890272	1.398632
0.893038	1.398602
0.895811	1.398572
0.898594	1.398542
0.901385	1.398513
0.904185	1.398483
0.906993	1.398454
0.909811	1.398425
0.912636	1.398395
0.915471	1.398366
0.918315	1.398338
0.921167	1.398309
0.924028	1.39828
0.926898	1.398252
0.929777	1.398223
0.932665	1.398195
0.935562	1.398167
0.938468	1.398139
0.941383	1.398111
0.944307	1.398083
0.94724	1.398055
0.950183	1.398027
0.953134	1.398
0.956094	1.397972
0.959064	1.397945
0.962043	1.397918
0.965031	1.397891
0.968029	1.397864
0.971036	1.397837
0.974052	1.39781
0.977077	1.397783
0.980112	1.397757
0.983156	1.39773
0.98621	1.397704
0.989273	1.397677
0.992346	1.397651
0.995428	1.397625
0.99852	1.397599
1.00162	1.397573
1.00473	1.397548
1.00785	1.397522
1.01098	1.397496
1.01412	1.397471
1.01727	1.397445
1.02043	1.39742
1.0236	1.397395
1.02678	1.39737
1.02997	1.397345
1.03317	1.39732
1.03638	1.397295
1.0396	1.39727
1.04283	1.397245
1.04607	1.397221
1.04932	1.397196
1.05258	1.397172
1.05585	1.397147
1.05913	1.397123
1.06242	1.397099
1.06572	1.397075
1.06903	1.397051
1.07235	1.397027
1.07568	1.397003
1.07902	1.39698
1.08237	1.396956
1.08573	1.396932
1.0891	1.396909
1.09249	1.396886
1.09588	1.396862
1.09928	1.396839
1.1027	1.396816
1.10612	1.396793
1.10956	1.39677
1.11301	1.396747
1.11646	1.396724
1.11993	1.396701
1.12341	1.396679
1.1269	1.396656
1.1304	1.396634
1.13391	1.396611
1.13743	1.396589
1.14096	1.396566
1.14451	1.396544
1.14806	1.396522
1.15163	1.3965
1.15521	1.396478
1.15879	1.396456
1.16239	1.396434
1.166	1.396412
1.16963	1.39639
1.17326	1.396369
1.1769	1.396347
1.18056	1.396326
1.18423	1.396304
1.1879	1.396283
1.19159	1.396261
1.1953	1.39624
1.19901	1.396219
1.20273	1.396198
1.20647	1.396177
1.21022	1.396156
1.21397	1.396135
1.21774	1.396114
1.22153	1.396093
1.22532	1.396072
1.22913	1.396052
1.23295	1.396031
1.23677	1.39601
1.24062	1.39599
1.24447	1.395969
1.24834	1.395949
1.25221	1.395929
1.2561	1.395908
1.26	1.395888
1.26392	1.395868
1.26784	1.395848
1.27178	1.395828
1.27573	1.395808
1.27969	1.395788
1.28367	1.395768
1.28766	1.395748
1.29166	1.395728
1.29567	1.395708
1.29969	1.395689
1.30373	1.395669
1.30778	1.395649
1.31184	1.39563
1.31592	1.39561
1.32	1.395591
1.3241	1.395571
1.32822	1.395552
1.33234	1.395533
1.33648	1.395513
1.34063	1.395494
1.34479	1.395475
1.34897	1.395456
1.35316	1.395437
1.35736	1.395418
1.36158	1.395399
1.36581	1.39538
1.37005	1.395361
1.37431	1.395342
1.37858	1.395323
1.38286	1.395304
1.38715	1.395285
1.39146	1.395266
1.39578	1.395248
1.40012	1.395229
1.40447	1.39521
1.40883	1.395192
1.41321	1.395173
1.4176	1.395155
1.422	1.395136
1.42642	1.395118
1.43085	1.395099
1.43529	1.395081
1.43975	1.395063
1.44422	1.395044
1.44871	1.395026
1.45321	1.395008
1.45772	1.394989
1.46225	1.394971
1.46679	1.394953
1.47135	1.394935
1.47592	1.394917
1.4805	1.394899
1.4851	1.394881
1.48971	1.394863
1.49434	1.394845
1.49898	1.394827
1.50364	1.394809
1.50831	1.394791
1.51299	1.394773
1.51769	1.394755
1.52241	1.394737
1.52714	1.394719
1.53188	1.394701
1.53664	1.394683
1.54141	1.394666
1.5462	1.394648
1.551	1.39463

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: —

C₅H₁₁OH (Pentanol, amyl alcohol): all datasets

About C5H11OH (Pentanol, amyl alcohol)

Pentanol (Amyl alcohol, C₅H₁₂O) is an organic compound that belongs to the alcohol family. There are several isomers of pentanol, with the common name "amyl alcohol" often referring to a mixture of these isomers. Predominantly, it's used as a solvent and an intermediate in the production of other chemicals. In its pure form, pentanol has a characteristic alcoholic odor and is slightly viscous compared to lower alcohols. When considering its optical properties, pentanol is generally transparent in the visible spectrum. Like other alcohols, pentanol should be handled with care due to its flammable nature and potential health effects. Proper storage and precautions are necessary when working with or around this compound. Chemical formula (Normal amyl alcohol): CH₃CH₂CH₂CH₂OH or C₅H₁₁OH Chemical formula (Isoamyl alcohol): (CH₃)₂CHCH₂CH₂OH

More about C5H11OH (Pentanol, amyl alcohol) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/organic/C5H12O - pentanol/nk/Moutzouris-iso.yml
ID: ds_ec607efc8dcc
API: /v1/datasets/ds_ec607efc8dcc

Plot