Optical constants

Refractive index of C₂H₄(OH)₂ (Ethylene glycol)

Sani and Dell'Oro 2014: Dispersion formula; n,k 0.185–2.8 µm

Data: formula 2 + tabulated k
Range: 0.185–2.8 µm
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength. Note: k data cover 185.2-2799 nm only; k = 0 elsewhere in the n range 185-2800 nm.

At one wavelength

Refractive index n: 1.43158
Extinction coefficient k: 5.29018e-08

Permittivity ε₁: 2.04943
Permittivity ε₂: 1.51467e-07

Absorption coefficient α: 0.0113135 cm⁻¹
Penetration depth δ = λ/(2πk): 1.76779e+09 nm

Abbe number V_d: 56.651
Chromatic dispersion dn/dλ: -0.039184 µm⁻¹

Group index n_g: 1.45461
Group velocity dispersion: 72.1394 fs²/mm

Dispersion parameter D: -393.559 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

# C2H4(OH)2 (Ethylene glycol): Sani and Dell'Oro 2014: Dispersion formula; n,k 0.185–2.8 µm
c2h4 = ls.fetch_refractiveindex("organic", "ethylene_glycol", "Sani-formula", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c2h4.range_nm)  # (185, 2800) nm
eps = c2h4.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_bdc1d4d81396/lightsmith"
c2h4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c2h4.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (ethylene-glycol/sani-dell-oro-2014-formula).

# ... load c2h4 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c2h4)],
    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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_bdc1d4d81396/lightsmith?model=drude_lorentz"
c2h4_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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

Sellmeier (C in µm²) (formula 2), λ in µm

n^{2} - 1 = \frac{0.01778 λ^{2}}{λ^{2} - 9.02} + \frac{1.01887 λ^{2}}{λ^{2} - 0.01028}

Valid from 0.185 to 2.8 µm.

Coefficients as stored

C_i	Value
C1	0.0
C2	0.01778
C3	9.02
C4	1.01887
C5	0.01028

Comments and conditions

Room temperature

Notes on the source data (kept exactly as published):

k data cover 185.2-2799 nm only; k = 0 elsewhere in the n range 185-2800 nm

References

1) E. Sani and A. Dell'Oro. Optical constants of ethylene glycol over an extremely wide spectral range. Opt. Mater. 37, 36-41 (2014)
2) E. Sani and A. Dell'Oro. Corrigendum to "Optical constants of ethylene glycol over an extremely wide spectral range". Opt. Mater. 48, 281 (2015)

doi:10.1016/j.optmat.2014.04.035 Optical constants of ethylene glycol over an extremely wide spectral range, Optical Materials (2014)
doi:10.1016/j.optmat.2015.06.039 Corrigendum to “Optical constants of ethylene glycol over an extremely wide spectral range” [Opt. Mater. 37 (2014) 36–41], Optical Materials (2015)

Cite

Elisa Sani and Aldo Dell’Oro. Optical constants of ethylene glycol over an extremely wide spectral range. Optical Materials, 37, 36-41 (2014), doi:10.1016/j.optmat.2014.04.035; Elisa Sani and Aldo Dell’Oro. Corrigendum to “Optical constants of ethylene glycol over an extremely wide spectral range” [Opt. Mater. 37 (2014) 36–41]. Optical Materials, 48, 281 (2015), doi:10.1016/j.optmat.2015.06.039; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 1015 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

C2H4(OH)2 (Ethylene glycol), Sani and Dell'Oro 2014: Dispersion formula; n,k 0.185–2.8 µm: n and k versus wavelength
λ (µm)	n	k
0.185	1.567233	0
0.1852	1.566803	0.0004897
0.1857	1.565736	0.0004838
0.186264	1.564548	0.0004782533
0.1863	1.564473	0.0004779
0.1868	1.563434	0.0004721
0.1874	1.562203	0.0004662
0.187537	1.561925	0.0004618505
0.1879	1.561191	0.0004503
0.1885	1.559992	0.0004313
0.188818	1.559362	0.0004192092
0.189	1.559005	0.0004123
0.1896	1.557836	0.0003932
0.190108	1.556858	0.0003768485
0.1902	1.556683	0.0003739
0.1907	1.555734	0.0003538
0.1913	1.554609	0.0003336
0.191407	1.55441	0.0003300051
0.1919	1.5535	0.0003135
0.1925	1.552406	0.0002934
0.192715	1.552017	0.0002868017
0.1931	1.551326	0.000275
0.1936	1.550437	0.0002567
0.194032	1.549677	0.0002435256
0.1942	1.549383	0.0002384
0.1948	1.548343	0.0002201
0.195358	1.547389	0.0002047624
0.1954	1.547317	0.0002036
0.196	1.546304	0.0001877
0.1966	1.545304	0.0001719
0.196693	1.545151	0.0001694468
0.1972	1.544317	0.000156
0.1979	1.543182	0.0001417
0.198037	1.542962	0.0001386735
0.1985	1.542222	0.0001284
0.1991	1.541274	0.0001151
0.19939	1.54082	0.0001086787
0.1997	1.540338	0.0001018
0.2004	1.539261	8.936000e-05
0.200752	1.538725	8.480066e-05
0.201	1.53835	8.159000e-05
0.2016	1.53745	7.382000e-05
0.202124	1.536674	6.800612e-05
0.2023	1.536415	6.605000e-05
0.2029	1.535539	5.828000e-05
0.203505	1.534667	5.156620e-05
0.2036	1.53453	5.051000e-05
0.2042	1.533677	4.303000e-05
0.204895	1.532702	3.806317e-05
0.2049	1.532695	3.803000e-05
0.2055	1.531864	3.409000e-05
0.2062	1.530907	3.015000e-05
0.206295	1.530778	2.961322e-05
0.2069	1.529963	2.621000e-05
0.2075	1.529165	2.226000e-05
0.207705	1.528894	2.110646e-05
0.2082	1.528245	1.832000e-05
0.2089	1.527337	1.537000e-05
0.209124	1.527049	1.480322e-05
0.2096	1.526442	1.360000e-05
0.2103	1.525559	1.206000e-05
0.210553	1.525243	1.150327e-05
0.211	1.524687	1.052000e-05
0.2117	1.523828	8.979000e-06
0.211992	1.523473	8.337202e-06
0.2124	1.522979	7.439000e-06
0.2131	1.522142	6.098000e-06
0.21344	1.521739	5.828250e-06
0.2138	1.521315	5.543000e-06
0.2146	1.520384	5.082000e-06
0.214899	1.52004	4.885336e-06
0.2153	1.51958	4.621000e-06
0.216	1.518787	4.160000e-06
0.216367	1.518375	3.918316e-06
0.2167	1.518004	3.699000e-06
0.2175	1.517121	3.330000e-06
0.217845	1.516744	3.244149e-06
0.2182	1.516359	3.156000e-06
0.219	1.5155	3.032000e-06
0.219334	1.515145	2.972380e-06
0.2197	1.514758	2.907000e-06
0.2205	1.513922	2.783000e-06
0.220833	1.513577	2.731872e-06
0.2213	1.513097	2.660000e-06
0.222	1.512385	2.565000e-06
0.222341	1.512041	2.546220e-06
0.2228	1.511582	2.521000e-06
0.2236	1.51079	2.477000e-06
0.223861	1.510534	2.462338e-06
0.2244	1.510009	2.432000e-06
0.2252	1.509239	2.388000e-06
0.22539	1.509057	2.377298e-06
0.226	1.508479	2.343000e-06
0.2268	1.50773	2.291000e-06
0.22693	1.507609	2.282204e-06
0.2276	1.50699	2.237000e-06
0.2284	1.506261	2.183000e-06
0.228481	1.506188	2.177440e-06
0.2292	1.505542	2.128000e-06
0.230042	1.504794	2.076542e-06
0.2301	1.504743	2.073000e-06
0.2309	1.504044	2.009000e-06
0.231614	1.503428	1.951890e-06
0.2318	1.503268	1.937000e-06
0.2326	1.502588	1.864000e-06
0.233196	1.502087	1.815621e-06
0.2335	1.501833	1.791000e-06
0.2343	1.501172	1.718000e-06
0.23479	1.500771	1.683167e-06
0.2352	1.500438	1.654000e-06
0.2361	1.499714	1.596000e-06
0.236394	1.49948	1.575412e-06
0.2369	1.49908	1.540000e-06
0.2378	1.498376	1.483000e-06
0.238009	1.498213	1.469741e-06
0.2387	1.497682	1.426000e-06
0.2396	1.496997	1.379000e-06
0.239636	1.49697	1.377456e-06
0.2405	1.496322	1.340000e-06
0.241273	1.49575	1.306503e-06
0.2414	1.495657	1.301000e-06
0.2424	1.494928	1.262000e-06
0.242922	1.494553	1.240557e-06
0.2433	1.494282	1.225000e-06
0.2442	1.493645	1.193000e-06
0.244581	1.493377	1.182320e-06
0.2452	1.492947	1.165000e-06
0.2461	1.492327	1.137000e-06
0.246253	1.492223	1.132880e-06
0.2471	1.491649	1.110000e-06
0.247935	1.49109	1.086800e-06
0.248	1.491047	1.085000e-06
0.249	1.490388	1.068000e-06
0.249629	1.489978	1.057931e-06
0.25	1.489738	1.052000e-06
0.251	1.489098	1.037000e-06
0.251335	1.488886	1.031641e-06
0.252	1.488467	1.021000e-06
0.253	1.487845	1.006000e-06
0.253052	1.487813	1.005190e-06
0.254	1.487233	9.905000e-07
0.254781	1.48676	9.787800e-07
0.255	1.486628	9.755000e-07
0.256	1.486033	9.605000e-07
0.256522	1.485725	9.528758e-07
0.257	1.485446	9.459000e-07
0.2581	1.484809	9.316000e-07
0.258275	1.484709	9.290804e-07
0.2591	1.484239	9.172000e-07
0.26004	1.483711	9.049837e-07
0.2602	1.483621	9.029000e-07
0.2613	1.483013	8.900000e-07
0.261817	1.48273	8.847409e-07
0.2624	1.482414	8.788000e-07
0.2634	1.481877	8.678000e-07
0.263605	1.481767	8.658201e-07
0.2645	1.481294	8.572000e-07
0.265407	1.480821	8.530790e-07
0.2656	1.480721	8.522000e-07
0.2668	1.480104	8.582000e-07
0.26722	1.479891	8.604915e-07
0.2679	1.479548	8.642000e-07
0.269	1.479	8.701000e-07
0.269046	1.478977	8.699736e-07
0.2702	1.478411	8.668000e-07
0.270884	1.478079	8.596459e-07
0.2713	1.477879	8.553000e-07
0.2725	1.477308	8.436000e-07
0.272735	1.477197	8.410983e-07
0.2736	1.476792	8.319000e-07
0.274599	1.47633	8.272392e-07
0.2748	1.476238	8.263000e-07
0.276	1.475692	8.225000e-07
0.276475	1.475478	8.210353e-07
0.2772	1.475154	8.188000e-07
0.278364	1.47464	8.133674e-07
0.2784	1.474624	8.132000e-07
0.2797	1.47406	7.984000e-07
0.280266	1.473817	7.912760e-07
0.2809	1.473547	7.833000e-07
0.2821	1.473041	7.681000e-07
0.282181	1.473007	7.670763e-07
0.2834	1.472502	7.517000e-07
0.284109	1.472212	7.422071e-07
0.2847	1.471972	7.343000e-07
0.2859	1.471489	7.170000e-07
0.286051	1.471429	7.149393e-07
0.2872	1.470975	6.992000e-07
0.288005	1.47066	6.876819e-07
0.2885	1.470468	6.806000e-07
0.2899	1.469932	6.619000e-07
0.289973	1.469904	6.608792e-07
0.2912	1.469442	6.437000e-07
0.291954	1.469161	6.416693e-07
0.2925	1.468959	6.402000e-07
0.2939	1.468447	6.387000e-07
0.293949	1.46843	6.386660e-07
0.2952	1.46798	6.378000e-07
0.295958	1.467711	6.388282e-07
0.2966	1.467484	6.397000e-07
0.29798	1.467004	6.439381e-07
0.298	1.466997	6.440000e-07
0.2994	1.466517	6.483000e-07
0.300016	1.466308	6.399418e-07
0.3008	1.466045	6.293000e-07
0.302066	1.465624	5.990047e-07
0.3023	1.465547	5.934000e-07
0.3037	1.46509	5.576000e-07
0.30413	1.464952	5.419560e-07
0.3052	1.464609	5.030000e-07
0.306208	1.46429	4.547677e-07
0.3066	1.464167	4.360000e-07
0.3081	1.463701	3.686000e-07
0.3083	1.463639	3.608628e-07
0.3096	1.463242	3.106000e-07
0.310407	1.462999	2.832275e-07
0.3111	1.462792	2.597000e-07
0.312528	1.462369	2.185671e-07
0.3127	1.462319	2.136000e-07
0.3142	1.461883	1.882000e-07
0.314663	1.46175	1.852191e-07
0.3158	1.461426	1.779000e-07
0.316813	1.46114	1.714163e-07
0.3173	1.461004	1.683000e-07
0.3189	1.460562	1.609000e-07
0.318978	1.46054	1.605888e-07
0.3205	1.460127	1.545000e-07
0.321157	1.45995	1.519867e-07
0.3222	1.459673	1.480000e-07
0.323352	1.45937	1.433211e-07
0.3238	1.459253	1.415000e-07
0.3255	1.458814	1.350000e-07
0.325561	1.458799	1.347746e-07
0.3271	1.458408	1.291000e-07
0.327786	1.458236	1.268415e-07
0.3288	1.457984	1.235000e-07
0.330025	1.457683	1.196078e-07
0.3305	1.457568	1.181000e-07
0.33228	1.457139	1.134514e-07
0.3323	1.457134	1.134000e-07
0.334	1.456732	1.089000e-07
0.334551	1.456603	1.077374e-07
0.3358	1.456313	1.051000e-07
0.336837	1.456076	1.032571e-07
0.3376	1.455902	1.019000e-07
0.339138	1.455557	9.297852e-08
0.3394	1.455498	9.146000e-08
0.3412	1.455102	6.686000e-08
0.341455	1.455046	6.277985e-08
0.343	1.454712	3.811000e-08
0.343789	1.454543	3.527121e-08
0.3449	1.454308	3.127000e-08
0.346138	1.454048	3.123743e-08
0.3468	1.453911	3.122000e-08
0.348503	1.453561	3.137235e-08
0.3487	1.453521	3.139000e-08
0.3506	1.453138	3.156000e-08
0.350884	1.453082	3.158690e-08
0.3525	1.452762	3.174000e-08
0.353281	1.452609	3.181033e-08
0.3545	1.452374	3.192000e-08
0.355695	1.452145	3.202758e-08
0.3565	1.451992	3.210000e-08
0.358126	1.451687	3.224632e-08
0.3585	1.451618	3.228000e-08
0.3605	1.45125	3.246000e-08
0.360573	1.451237	3.246624e-08
0.3626	1.450871	3.264000e-08
0.363036	1.450793	3.267949e-08
0.3647	1.450499	3.283000e-08
0.365517	1.450357	3.290392e-08
0.3668	1.450135	3.302000e-08
0.368015	1.449927	3.312989e-08
0.3689	1.449776	3.321000e-08
0.370529	1.449503	3.336516e-08
0.371	1.449425	3.341000e-08
0.373061	1.449086	3.358799e-08
0.3732	1.449064	3.360000e-08
0.3754	1.448709	3.380000e-08
0.37561	1.448676	3.381909e-08
0.3776	1.448362	3.400000e-08
0.378176	1.448272	3.405012e-08
0.3799	1.448005	3.420000e-08
0.38076	1.447874	3.427856e-08
0.3822	1.447656	3.441000e-08
0.383362	1.447482	3.451610e-08
0.3845	1.447313	3.462000e-08
0.385982	1.447096	3.475527e-08
0.3868	1.446977	3.483000e-08
0.388619	1.446715	3.498915e-08
0.3892	1.446633	3.504000e-08
0.391274	1.446341	3.523014e-08
0.3916	1.446296	3.526000e-08
0.393948	1.445972	3.547521e-08
0.394	1.445965	3.548000e-08
0.3965	1.445628	3.570000e-08
0.396639	1.445609	3.571228e-08
0.399	1.445297	3.592000e-08
0.39935	1.445251	3.595217e-08
0.4015	1.444973	3.615000e-08
0.402078	1.444899	3.620321e-08
0.404	1.444655	3.638000e-08
0.404826	1.444552	3.645304e-08
0.4066	1.444331	3.661000e-08
0.407592	1.44421	3.670155e-08
0.4092	1.444014	3.685000e-08
0.410377	1.443873	3.695024e-08
0.4119	1.443692	3.708000e-08
0.413181	1.443541	3.719859e-08
0.4146	1.443376	3.733000e-08
0.416004	1.443214	3.745480e-08
0.4173	1.443066	3.757000e-08
0.418846	1.442892	3.770807e-08
0.4201	1.442752	3.782000e-08
0.421708	1.442575	3.796892e-08
0.4228	1.442456	3.807000e-08
0.42459	1.442262	3.822429e-08
0.4257	1.442144	3.832000e-08
0.427491	1.441954	3.848630e-08
0.4285	1.441849	3.858000e-08
0.430412	1.441651	3.875207e-08
0.4315	1.44154	3.885000e-08
0.433353	1.441352	3.901611e-08
0.4344	1.441247	3.911000e-08
0.436314	1.441057	3.928224e-08
0.4374	1.440951	3.938000e-08
0.439295	1.440767	3.955056e-08
0.4404	1.440661	3.965000e-08
0.442297	1.440481	3.982131e-08
0.4435	1.440368	3.993000e-08
0.445319	1.440199	4.009428e-08
0.4466	1.440082	4.021000e-08
0.448362	1.439922	4.036414e-08
0.4498	1.439793	4.049000e-08
0.451425	1.439648	4.063728e-08
0.453	1.43951	4.078000e-08
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0.457615	1.439113	4.119866e-08
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0.460742	1.438851	4.147959e-08
0.4629	1.438673	4.167000e-08
0.46389	1.438593	4.176028e-08
0.4663	1.438399	4.198000e-08
0.46706	1.438339	4.204928e-08
0.4697	1.438131	4.229000e-08
0.470251	1.438088	4.233882e-08
0.4732	1.437861	4.260000e-08
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0.476699	1.437597	4.291995e-08
0.4767	1.437597	4.292000e-08
0.479957	1.437357	4.321853e-08
0.4803	1.437332	4.325000e-08
0.483236	1.437121	4.351187e-08
0.484	1.437066	4.358000e-08
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0.4877	1.436807	4.391000e-08
0.489862	1.436658	4.410348e-08
0.4915	1.436546	4.425000e-08
0.49321	1.436431	4.440296e-08
0.4953	1.436292	4.459000e-08
0.49658	1.436208	4.470483e-08
0.4992	1.436037	4.494000e-08
0.499973	1.435988	4.501131e-08
0.5031	1.435789	4.530000e-08
0.503389	1.435771	4.532536e-08
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0.5072	1.435534	4.566000e-08
0.510291	1.435346	4.594595e-08
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0.513778	1.435138	4.625712e-08
0.5154	1.435043	4.640000e-08
0.517289	1.434933	4.657088e-08
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0.5239	1.434558	4.717000e-08
0.524382	1.434532	4.721371e-08
0.527965	1.434335	4.753868e-08
0.5282	1.434322	4.756000e-08
0.531572	1.434141	4.786658e-08
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0.5371	1.433852	4.836000e-08
0.538861	1.433762	4.851700e-08
0.5417	1.433618	4.877000e-08
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0.54625	1.433393	4.917664e-08
0.5464	1.433386	4.919000e-08
0.549983	1.433213	4.951780e-08
0.5511	1.433159	4.962000e-08
0.553741	1.433034	4.985657e-08
0.5559	1.432934	5.005000e-08
0.557524	1.432859	5.019587e-08
0.5608	1.43271	5.049000e-08
0.561334	1.432686	5.053805e-08
0.565169	1.432515	5.088324e-08
0.5658	1.432487	5.094000e-08
0.569031	1.432346	5.123143e-08
0.5709	1.432266	5.140000e-08
0.572919	1.43218	5.158250e-08
0.5761	1.432047	5.187000e-08
0.576834	1.432016	5.193633e-08
0.580775	1.431855	5.229257e-08
0.5813	1.431833	5.234000e-08
0.584744	1.431695	5.264609e-08
0.5867	1.431618	5.282000e-08
0.588739	1.431538	5.300536e-08
0.5922	1.431404	5.332000e-08
0.592762	1.431383	5.337106e-08
0.596812	1.43123	5.373927e-08
0.5977	1.431197	5.382000e-08
0.60089	1.431079	5.410541e-08
0.6034	1.430988	5.433000e-08
0.604996	1.43093	5.447305e-08
0.609129	1.430783	5.484367e-08
0.6092	1.430781	5.485000e-08
0.613291	1.430638	5.521754e-08
0.6151	1.430576	5.538000e-08
0.617482	1.430495	5.559438e-08
0.6211	1.430374	5.592000e-08
0.621701	1.430354	5.597420e-08
0.625949	1.430215	5.635721e-08
0.6272	1.430175	5.647000e-08
0.630226	1.430078	5.673899e-08
0.6335	1.429974	5.703000e-08
0.634532	1.429942	5.712504e-08
0.638868	1.429808	5.752419e-08
0.6398	1.42978	5.761000e-08
0.643233	1.429677	5.791635e-08
0.6463	1.429585	5.819000e-08
0.647628	1.429546	5.830895e-08
0.652053	1.429418	5.870523e-08
0.653	1.429391	5.879000e-08
0.656509	1.429291	5.910946e-08
0.6597	1.429202	5.940000e-08
0.660995	1.429166	5.951466e-08
0.665511	1.429042	5.991469e-08
0.6667	1.42901	6.002000e-08
0.6685	1.428962	6.018000e-08
0.670058	1.42892	6.032718e-08
0.6703	1.428914	6.035000e-08
0.6721	1.428867	6.051000e-08
0.6739	1.428819	6.068000e-08
0.674637	1.4288	6.074549e-08
0.6757	1.428773	6.084000e-08
0.6776	1.428724	6.101000e-08
0.679246	1.428681	6.114864e-08
0.6795	1.428675	6.117000e-08
0.6813	1.428629	6.134000e-08
0.6832	1.428581	6.151000e-08
0.683888	1.428564	6.157152e-08
0.6851	1.428534	6.168000e-08
0.687	1.428487	6.185000e-08
0.68856	1.428448	6.198962e-08
0.6889	1.42844	6.202000e-08
0.6908	1.428394	6.220000e-08
0.6927	1.428348	6.237000e-08
0.693265	1.428334	6.241804e-08
0.6947	1.4283	6.254000e-08
0.6966	1.428254	6.272000e-08
0.698002	1.428221	6.284619e-08
0.6986	1.428207	6.290000e-08
0.7006	1.42816	6.308000e-08
0.7025	1.428116	6.325000e-08
0.702771	1.42811	6.327443e-08
0.7045	1.42807	6.343000e-08
0.7066	1.428022	6.361000e-08
0.707573	1.428	6.370247e-08
0.7086	1.427977	6.380000e-08
0.7106	1.427932	6.398000e-08
0.712408	1.427891	6.414273e-08
0.7126	1.427887	6.416000e-08
0.7147	1.427841	6.435000e-08
0.7168	1.427795	6.453000e-08
0.717276	1.427784	6.457520e-08
0.7188	1.427751	6.472000e-08
0.7209	1.427706	6.491000e-08
0.722177	1.427678	6.502552e-08
0.723	1.427661	6.510000e-08
0.7251	1.427616	6.529000e-08
0.727111	1.427574	6.546371e-08
0.7273	1.42757	6.548000e-08
0.7294	1.427526	6.567000e-08
0.7316	1.42748	6.587000e-08
0.73208	1.427471	6.591339e-08
0.7337	1.427437	6.606000e-08
0.7359	1.427393	6.626000e-08
0.737082	1.427369	6.636206e-08
0.7381	1.427348	6.645000e-08
0.7403	1.427304	6.665000e-08
0.742118	1.427268	6.681528e-08
0.7425	1.42726	6.685000e-08
0.7447	1.427217	6.705000e-08
0.747	1.427172	6.726000e-08
0.747189	1.427168	6.727716e-08
0.7492	1.427129	6.746000e-08
0.7515	1.427085	6.766000e-08
0.752294	1.42707	6.773251e-08
0.7538	1.427041	6.787000e-08
0.7561	1.426998	6.808000e-08
0.757434	1.426973	6.819604e-08
0.7584	1.426955	6.828000e-08
0.7607	1.426912	6.849000e-08
0.76261	1.426877	6.865712e-08
0.7631	1.426868	6.870000e-08
0.7654	1.426826	6.891000e-08
0.7678	1.426783	6.913000e-08
0.767821	1.426782	6.913181e-08
0.7702	1.42674	6.934000e-08
0.7726	1.426697	6.956000e-08
0.773067	1.426689	6.960281e-08
0.775	1.426655	6.978000e-08
0.7774	1.426613	7.000000e-08
0.778349	1.426596	7.008353e-08
0.7799	1.426569	7.022000e-08
0.7823	1.426528	7.044000e-08
0.783668	1.426505	7.056035e-08
0.7848	1.426486	7.066000e-08
0.7873	1.426443	7.088000e-08
0.789022	1.426415	7.103844e-08
0.7898	1.426402	7.111000e-08
0.7923	1.42636	7.134000e-08
0.794413	1.426325	7.152696e-08
0.7949	1.426317	7.157000e-08
0.7974	1.426277	7.180000e-08
0.799842	1.426237	7.201598e-08
0.8	1.426235	7.203000e-08
0.8026	1.426193	7.226000e-08
0.8052	1.426152	7.250000e-08
0.805307	1.42615	7.250944e-08
0.8078	1.426111	7.273000e-08
0.8105	1.426068	7.297000e-08
0.810809	1.426064	7.299854e-08
0.8131	1.426028	7.321000e-08
0.8158	1.425987	7.345000e-08
0.816349	1.425978	7.349883e-08
0.8185	1.425946	7.369000e-08
0.8212	1.425905	7.393000e-08
0.821927	1.425894	7.399734e-08
0.8239	1.425865	7.418000e-08
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0.827543	1.425811	7.450809e-08
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0.833198	1.425728	7.501909e-08
0.835	1.425703	7.518000e-08
0.8378	1.425663	7.544000e-08
0.838891	1.425647	7.553404e-08
0.8407	1.425621	7.569000e-08
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0.844623	1.425566	7.605067e-08
0.8464	1.425542	7.621000e-08
0.8493	1.425502	7.647000e-08
0.850394	1.425487	7.656808e-08
0.8522	1.425462	7.673000e-08
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0.856205	1.425408	7.709006e-08
0.8581	1.425383	7.726000e-08
0.8611	1.425343	7.753000e-08
0.862055	1.42533	7.761594e-08
0.8641	1.425303	7.780000e-08
0.8671	1.425264	7.807000e-08
0.867945	1.425253	7.814633e-08
0.8702	1.425224	7.835000e-08
0.8732	1.425185	7.865000e-08
0.873876	1.425177	8.415291e-08
0.8763	1.425146	1.039000e-07
0.8794	1.425107	1.307000e-07
0.879847	1.425101	1.344545e-07
0.8826	1.425067	1.576000e-07
0.8857	1.425028	1.985000e-07
0.885858	1.425026	2.018374e-07
0.8889	1.424989	2.659000e-07
0.891911	1.424952	3.293267e-07
0.8921	1.42495	3.333000e-07
0.8953	1.424911	4.007000e-07
0.898006	1.424879	4.603055e-07
0.8986	1.424872	4.734000e-07
0.9018	1.424834	5.479000e-07
0.904142	1.424807	6.006905e-07
0.9051	1.424795	6.223000e-07
0.9084	1.424757	6.930000e-07
0.910319	1.424735	7.215079e-07
0.9118	1.424718	7.435000e-07
0.9151	1.42468	7.939000e-07
0.916539	1.424664	8.152790e-07
0.9185	1.424642	8.444000e-07
0.9219	1.424603	8.604000e-07
0.922802	1.424593	8.577200e-07
0.9254	1.424565	8.500000e-07
0.9288	1.424527	8.395000e-07
0.929107	1.424524	8.385870e-07
0.9323	1.424489	8.291000e-07
0.935456	1.424455	7.898796e-07
0.9358	1.424451	7.856000e-07
0.9394	1.424412	7.412000e-07
0.941847	1.424386	7.110148e-07
0.943	1.424374	6.968000e-07
0.9466	1.424336	6.702000e-07
0.948283	1.424319	6.715089e-07
0.9502	1.424299	6.730000e-07
0.9538	1.424261	6.758000e-07
0.954762	1.424251	6.765543e-07
0.9575	1.424223	6.787000e-07
0.9612	1.424186	7.818000e-07
0.961286	1.424185	7.847690e-07
0.965	1.424148	9.129000e-07
0.967854	1.424119	1.014036e-06
0.9687	1.424111	1.044000e-06
0.9725	1.424073	1.188000e-06
0.974468	1.424054	1.289907e-06
0.9764	1.424035	1.390000e-06
0.9802	1.423998	1.592000e-06
0.981126	1.423989	1.639955e-06
0.9841	1.42396	1.794000e-06
0.98783	1.423925	1.913542e-06
0.988	1.423923	1.919000e-06
0.992	1.423885	1.990000e-06
0.994579	1.423861	2.035784e-06
0.996	1.423848	2.061000e-06
1	1.42381	2.131000e-06
1.00138	1.423798	2.137532e-06
1.004	1.423773	2.150000e-06
1.008	1.423737	2.168000e-06
1.00822	1.423735	2.168924e-06
1.012	1.423701	2.185000e-06
1.01511	1.423673	2.188106e-06
1.016	1.423665	2.189000e-06
1.021	1.42362	2.174000e-06
1.02204	1.423611	2.169831e-06
1.025	1.423585	2.158000e-06
1.029	1.42355	2.142000e-06
1.02903	1.42355	2.141923e-06
1.033	1.423515	2.130000e-06
1.03606	1.423489	2.123886e-06
1.038	1.423472	2.120000e-06
1.042	1.423438	2.110000e-06
1.04314	1.423428	2.105740e-06
1.046	1.423404	2.095000e-06
1.05026	1.423368	2.067713e-06
1.051	1.423362	2.063000e-06
1.055	1.423329	2.031000e-06
1.05744	1.423309	2.015385e-06
1.06	1.423288	1.999000e-06
1.064	1.423255	1.958000e-06
1.06467	1.42325	1.951881e-06
1.069	1.423214	1.912000e-06
1.07194	1.423191	1.884366e-06
1.074	1.423174	1.865000e-06
1.078	1.423142	1.819000e-06
1.07926	1.423132	1.806864e-06
1.083	1.423103	1.771000e-06
1.08664	1.423074	1.736798e-06
1.088	1.423064	1.724000e-06
1.093	1.423025	1.676000e-06
1.09406	1.423016	1.665367e-06
1.097	1.422994	1.636000e-06
1.10154	1.422959	1.608767e-06
1.102	1.422955	1.606000e-06
1.107	1.422917	1.576000e-06
1.10907	1.422902	1.563607e-06
1.112	1.42288	1.546000e-06
1.11664	1.422845	1.588720e-06
1.117	1.422842	1.592000e-06
1.122	1.422805	1.652000e-06
1.12427	1.422788	1.679280e-06
1.127	1.422768	1.712000e-06
1.13196	1.422732	1.849756e-06
1.132	1.422732	1.851000e-06
1.138	1.422688	2.233000e-06
1.13969	1.422676	2.362093e-06
1.143	1.422652	2.615000e-06
1.14748	1.42262	2.957041e-06
1.148	1.422616	2.997000e-06
1.153	1.422581	3.640000e-06
1.15532	1.422565	3.942044e-06
1.159	1.422539	4.422000e-06
1.16321	1.422509	5.079842e-06
1.164	1.422504	5.203000e-06
1.17	1.422462	6.017000e-06
1.17116	1.422454	6.325901e-06
1.175	1.422428	7.349000e-06
1.17916	1.422399	8.272930e-06
1.181	1.422386	8.681000e-06
1.187	1.422346	1.001000e-05
1.18722	1.422344	1.005377e-05
1.192	1.422312	1.101000e-05
1.19533	1.422289	1.134864e-05
1.198	1.422271	1.162000e-05
1.2035	1.422235	1.217900e-05
1.204	1.422231	1.223000e-05
1.21	1.422192	1.284000e-05
1.21172	1.42218	1.261045e-05
1.216	1.422152	1.204000e-05
1.22	1.422126	1.137315e-05
1.222	1.422113	1.104000e-05
1.228	1.422074	1.004000e-05
1.22834	1.422072	9.990613e-06
1.234	1.422035	9.161000e-06
1.23673	1.422018	8.915746e-06
1.24	1.421996	8.622000e-06
1.24518	1.421963	8.157487e-06
1.246	1.421958	8.084000e-06
1.253	1.421914	7.545000e-06
1.25369	1.421909	7.506672e-06
1.259	1.421876	7.211000e-06
1.26225	1.421855	7.081895e-06
1.265	1.421838	6.973000e-06
1.27088	1.421801	6.773097e-06
1.272	1.421794	6.735000e-06
1.278	1.421757	6.495000e-06
1.27956	1.421747	6.439396e-06
1.285	1.421713	6.246000e-06
1.28831	1.421693	6.127922e-06
1.292	1.42167	5.996000e-06
1.29711	1.421639	5.783128e-06
1.298	1.421633	5.746000e-06
1.305	1.42159	5.767000e-06
1.30597	1.421584	5.808511e-06
1.312	1.421548	6.066000e-06
1.3149	1.42153	6.190083e-06
1.319	1.421505	6.366000e-06
1.32388	1.421476	6.575130e-06
1.326	1.421463	6.666000e-06
1.33293	1.421421	7.892807e-06
1.333	1.421421	7.906000e-06
1.341	1.421373	9.252000e-06
1.34203	1.421367	9.450955e-06
1.348	1.421331	1.060000e-05
1.3512	1.421312	1.130924e-05
1.355	1.421289	1.215000e-05
1.36044	1.421257	1.352926e-05
1.363	1.421242	1.418000e-05
1.36973	1.421202	1.613202e-05
1.37	1.4212	1.621000e-05
1.378	1.421153	1.823000e-05
1.37909	1.421146	1.895733e-05
1.385	1.421111	2.290000e-05
1.38851	1.421091	2.542078e-05
1.393	1.421064	2.864000e-05
1.398	1.421035	3.223427e-05
1.401	1.421017	3.439000e-05
1.40755	1.420978	3.991090e-05
1.409	1.42097	4.113000e-05
1.417	1.420923	5.545000e-05
1.41717	1.420922	5.575548e-05
1.425	1.420876	6.978000e-05
1.42685	1.420865	7.272960e-05
1.434	1.420823	8.410000e-05
1.4366	1.420808	8.765013e-05
1.442	1.420776	9.501000e-05
1.44642	1.42075	9.931325e-05
1.45	1.420729	0.0001028
1.4563	1.420692	0.000108262
1.459	1.420677	0.0001106
1.46625	1.420634	0.000117581
1.467	1.42063	0.0001183
1.476	1.420577	0.0001212
1.47627	1.420575	0.0001212724
1.485	1.420524	0.0001236
1.48636	1.420516	0.0001239774
1.494	1.420471	0.0001261
1.49651	1.420456	0.00012705
1.503	1.420418	0.0001295
1.50674	1.420396	0.0001294169
1.512	1.420365	0.0001293
1.51704	1.420335	0.0001293
1.521	1.420311	0.0001293
1.5274	1.420273	0.0001298761
1.531	1.420252	0.0001302
1.53784	1.420211	0.0001321753
1.54	1.420198	0.0001328
1.54835	1.420148	0.0001365553
1.55	1.420138	0.0001373
1.55892	1.420085	0.0001426548
1.56	1.420078	0.0001433
1.56958	1.420021	0.0001485671
1.57	1.420018	0.0001488
1.58	1.419957	0.0001518
1.5803	1.419956	0.0001517548
1.59	1.419896	0.0001503
1.5911	1.41989	0.0001495966
1.6	1.419835	0.0001439
1.60197	1.419823	0.0001418898
1.61	1.419774	0.0001337
1.61292	1.419755	0.0001305712
1.621	1.419705	0.0001219
1.62394	1.419687	0.0001188824
1.632	1.419637	0.0001106
1.63503	1.419617	0.0001075362
1.642	1.419574	0.0001005
1.64621	1.419547	9.736508e-05
1.653	1.419504	9.230000e-05
1.65745	1.419475	8.991531e-05
1.664	1.419433	8.641000e-05
1.66878	1.419403	8.578878e-05
1.676	1.419356	8.485000e-05
1.68018	1.419329	8.773116e-05
1.687	1.419284	9.243000e-05
1.69166	1.419254	9.929399e-05
1.699	1.419205	0.0001101
1.70322	1.419177	0.0001151259
1.71	1.419132	0.0001232
1.71486	1.4191	0.0001228356
1.722	1.419051	0.0001223
1.72658	1.41902	0.0001204699
1.734	1.41897	0.0001175
1.73837	1.41894	0.0001163339
1.746	1.418887	0.0001143
1.75025	1.418858	0.0001131883
1.759	1.418796	0.0001109
1.76221	1.418774	0.0001101778
1.771	1.418711	0.0001082
1.77425	1.418688	0.0001065497
1.784	1.418618	0.0001016
1.78637	1.418601	9.981604e-05
1.797	1.418524	9.183000e-05
1.79858	1.418512	9.061363e-05
1.81	1.418427	8.182000e-05
1.81087	1.418421	8.127871e-05
1.82324	1.418328	7.357190e-05
1.824	1.418322	7.310000e-05
1.8357	1.418233	6.799690e-05
1.837	1.418223	6.743000e-05
1.84824	1.418135	6.489224e-05
1.851	1.418114	6.427000e-05
1.86087	1.418035	6.302191e-05
1.865	1.418002	6.250000e-05
1.87359	1.417933	6.338322e-05
1.879	1.417889	6.394000e-05
1.88639	1.417828	7.031545e-05
1.893	1.417774	7.602000e-05
1.89928	1.417721	8.739591e-05
1.908	1.417647	0.0001032
1.91226	1.417611	0.0001126229
1.922	1.417526	0.0001342
1.92532	1.417497	0.0001386011
1.938	1.417385	0.0001554
1.93848	1.417381	0.0001554922
1.95172	1.417261	0.000158053
1.953	1.41725	0.0001583
1.96506	1.417138	0.0001533964
1.968	1.417111	0.0001522
1.97848	1.417011	0.0001497099
1.984	1.416958	0.0001484
1.992	1.416881	0.0001524017
2	1.416802	0.0001564
2.005	1.416752	0.0001633
2.00561	1.416746	0.0001644796
2.01	1.416702	0.0001729
2.015	1.416651	0.0001857
2.01932	1.416607	0.0001996915
2.02	1.4166	0.0002019
2.024	1.416559	0.0002217
2.029	1.416507	0.0002452
2.03312	1.416464	0.0002675085
2.034	1.416454	0.0002723
2.039	1.416402	0.0003026
2.045	1.416337	0.0003349
2.04701	1.416316	0.000348192
2.05	1.416283	0.000368
2.055	1.416229	0.0004009
2.06	1.416174	0.000432
2.06099	1.416163	0.0004375702
2.065	1.416118	0.00046
2.07	1.416062	0.0004839
2.075	1.416005	0.0005029
2.07508	1.416004	0.0005030772
2.081	1.415936	0.0005167
2.086	1.415878	0.0005252
2.08926	1.41584	0.0005272836
2.091	1.41582	0.0005284
2.096	1.41576	0.0005268
2.102	1.415688	0.0005207
2.10353	1.41567	0.0005176071
2.107	1.415628	0.0005106
2.112	1.415567	0.0004978
2.1179	1.415494	0.0004829412
2.118	1.415493	0.0004827
2.123	1.41543	0.0004663
2.129	1.415354	0.0004491
2.13238	1.415311	0.0004373536
2.134	1.41529	0.0004317
2.14	1.415212	0.000414
2.145	1.415146	0.0003969
2.14695	1.415121	0.000391485
2.151	1.415067	0.0003802
2.157	1.414986	0.0003643
2.16162	1.414923	0.000350639
2.162	1.414918	0.0003495
2.168	1.414835	0.0003359
2.174	1.414751	0.0003237
2.17639	1.414717	0.0003184051
2.179	1.41468	0.0003126
2.185	1.414594	0.0003028
2.191	1.414506	0.000294
2.19126	1.414503	0.0002936886
2.197	1.414418	0.0002867
2.202	1.414343	0.0002805
2.20623	1.414279	0.0002769059
2.208	1.414252	0.0002754
2.214	1.41416	0.0002719
2.22	1.414066	0.0002706
2.2213	1.414046	0.0002708606
2.226	1.413971	0.0002718
2.232	1.413875	0.0002774
2.23648	1.413802	0.000286511
2.238	1.413777	0.0002896
2.244	1.413677	0.0003121
2.25	1.413577	0.0003498
2.25176	1.413547	0.0003645024
2.257	1.413457	0.0004082
2.263	1.413352	0.0004894
2.26715	1.413279	0.0005592269
2.269	1.413246	0.0005904
2.275	1.413139	0.0006978
2.282	1.413011	0.0007882
2.28264	1.412999	0.000792855
2.288	1.412899	0.0008319
2.294	1.412786	0.0008133
2.29824	1.412705	0.0007746922
2.301	1.412651	0.0007495
2.307	1.412533	0.000677
2.313	1.412414	0.0006246
2.31394	1.412395	0.0006206949
2.32	1.412272	0.0005955
2.326	1.412148	0.0005789
2.32975	1.412069	0.0005695248
2.333	1.412	0.0005614
2.34	1.411849	0.0005393
2.34567	1.411725	0.0005193647
2.346	1.411718	0.0005182
2.353	1.411561	0.0005039
2.36	1.411401	0.0004956
2.3617	1.411362	0.0004940168
2.366	1.411262	0.00049
2.373	1.411095	0.0004882
2.37783	1.410978	0.0004923429
2.38	1.410925	0.0004942
2.387	1.410751	0.000509
2.394	1.410573	0.0005298
2.39408	1.410571	0.0005299774
2.401	1.410391	0.0005452
2.408	1.410205	0.0005547
2.41044	1.410139	0.0005563724
2.415	1.410014	0.0005595
2.422	1.409819	0.0005692
2.42691	1.409679	0.0005806309
2.429	1.409619	0.0005855
2.436	1.409414	0.0006088
2.443	1.409204	0.0006448
2.44349	1.409189	0.0006479707
2.451	1.408958	0.0006964
2.458	1.408736	0.0007694
2.46019	1.408666	0.0008004312
2.465	1.408509	0.0008687
2.473	1.408242	0.0009943
2.477	1.408105	0.001060373
2.48	1.408001	0.00111
2.487	1.407755	0.0012
2.49392	1.407504	0.001234612
2.495	1.407464	0.00124
2.503	1.407164	0.00122
2.51	1.406894	0.00118
2.51096	1.406856	0.001175186
2.518	1.406576	0.00114
2.525	1.406289	0.00108
2.52812	1.406158	0.001048802
2.533	1.40595	0.001
2.541	1.405599	0.0009342
2.54539	1.405401	0.0009055296
2.549	1.405236	0.000882
2.557	1.40486	0.0008219
2.56279	1.40458	0.0007637495
2.565	1.404471	0.0007415
2.573	1.404066	0.0006537
2.5803	1.403684	0.0006003396
2.581	1.403647	0.0005952
2.589	1.403211	0.0005706
2.597	1.402758	0.000569
2.59793	1.402704	0.0005713775
2.605	1.402286	0.0005895
2.613	1.401795	0.0006281
2.61568	1.401626	0.000641733
2.622	1.401218	0.0006739
2.63	1.400682	0.0007097
2.63355	1.400436	0.0007194663
2.638	1.400122	0.0007317
2.647	1.399462	0.0007452
2.65155	1.399115	0.0007548033
2.655	1.398846	0.0007621
2.664	1.398118	0.0007882
2.66966	1.39764	0.0008186411
2.672	1.397438	0.0008312
2.681	1.396631	0.000896
2.6879	1.395982	0.0009338227
2.69	1.395779	0.0009453
2.699	1.394875	0.000987
2.70627	1.394104	0.001035168
2.707	1.394025	0.00104
2.716	1.393011	0.00102
2.72476	1.391961	0.001166036
2.725	1.391932	0.00117
2.734	1.390779	0.00142
2.743	1.389546	0.00183
2.74338	1.389492	0.001855749
2.752	1.388223	0.00244
2.762	1.386636	0.00311
2.76212	1.386615	0.00312471
2.771	1.385089	0.00417
2.78	1.383416	0.00548
2.781	1.383222	0.005649655
2.79	1.381388	0.00718
2.799	1.379391	0.00924
2.8	1.379158	0

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: —

C₂H₄(OH)₂ (Ethylene glycol): all datasets

About C2H4(OH)2 (Ethylene glycol)

Ethylene (C₂H₄) is a colorless, flammable gas with a slightly sweet odor. It is the simplest alkene and is produced in vast quantities in the petrochemical industry. Ethylene plays a critical role in the synthetic polymer industry, being the precursor to polyethylene, the world's most widely used plastic. Besides its significance in polymer synthesis, ethylene is a naturally occurring plant hormone responsible for fruit ripening and flower wilting. Due to its importance in both industrial and natural processes, ethylene production and its role in plant biology have been extensively studied. In the industrial setting, it's crucial to store and transport ethylene under controlled conditions due to its flammability.

More about C2H4(OH)2 (Ethylene glycol) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/organic/C2H6O2 - ethylene glycol/nk/Sani-formula.yml
ID: ds_bdc1d4d81396
API: /v1/datasets/ds_bdc1d4d81396

Plot