Axis Log x Log y

Click the plot to set the calculator wavelength. Note: k data cover 320-1550 nm only; k = 0 elsewhere in the n range 310-1550 nm.

At one wavelength

Refractive index n: 1.49261
Extinction coefficient k: 0

Permittivity ε₁: 2.2279
Permittivity ε₂: 0

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

Abbe number V_d: 39.889
Chromatic dispersion dn/dλ: -0.0638475 µm⁻¹

Group index n_g: 1.53013
Group velocity dispersion: 116.227 fs²/mm

Dispersion parameter D: -634.081 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

# Acrylic double matching liquid (Cargille): Acrylic double matching liquid
mat = ls.fetch_refractiveindex("specs", "Cargille", "acrylic_double_matching_liquid", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mat.range_nm)  # (310, 1550) nm
eps = mat.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_af8729132f97/lightsmith"
mat = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(mat.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (cargille-acrylic-double-matching-liquid/cargille).

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

Dispersion formula

Cauchy (formula 5), λ in µm

n = 1.473749 + 0.006550312 λ^{- 2.0} - 1.269442 \times 10^{-5} λ^{- 4.0}

Valid from 0.31 to 1.55 µm.

Coefficients as stored

C_i	Value
C1	1.473749
C2	0.006550312
C3	-2.0
C4	-1.269442e-05
C5	-4.0

Comments and conditions

25 °C

Conditions

temperature: 298 K

Properties

density: value: 1184, temperature: 298
thermal expansion: value: 0.00066, temperature: 298

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

k data cover 320-1550 nm only; k = 0 elsewhere in the n range 310-1550 nm

References

Acrylic Double Matching Liquid Code 4213295 Data Sheet 29-MAR-17 (obtained from https://www.cargille.com)

Cite

Acrylic Double Matching Liquid Code 4213295 Data Sheet 29-MAR-17 (obtained from https://www.cargille.com); Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 414 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

Acrylic double matching liquid (Cargille), Acrylic double matching liquid: n and k versus wavelength
λ (µm)	n	k
0.31	1.540536	0
0.311253	1.54001	0
0.312511	1.539489	0
0.313774	1.538971	0
0.315042	1.538457	0
0.316316	1.537948	0
0.317594	1.537442	0
0.318878	1.53694	0
0.32	1.536506	5.863000e-06
0.320167	1.536442	5.842782e-06
0.321461	1.535948	5.685813e-06
0.32276	1.535458	5.528209e-06
0.324065	1.534971	5.369968e-06
0.325374	1.534489	5.211088e-06
0.326689	1.53401	5.051566e-06
0.32801	1.533534	4.891399e-06
0.329336	1.533063	4.730584e-06
0.330667	1.532595	4.569120e-06
0.332003	1.53213	4.407002e-06
0.333345	1.53167	4.244230e-06
0.334692	1.531212	4.080800e-06
0.336045	1.530759	3.916709e-06
0.337404	1.530309	3.751955e-06
0.338767	1.529862	3.586535e-06
0.340136	1.529419	3.420446e-06
0.341511	1.528979	3.253687e-06
0.342892	1.528543	3.086253e-06
0.344277	1.52811	2.918142e-06
0.345669	1.52768	2.749352e-06
0.347066	1.527254	2.579880e-06
0.348469	1.526831	2.409722e-06
0.349877	1.526411	2.238877e-06
0.351291	1.525995	2.067342e-06
0.352711	1.525582	1.895113e-06
0.354137	1.525172	1.722188e-06
0.355568	1.524765	1.548564e-06
0.357005	1.524362	1.374238e-06
0.358448	1.523961	1.199208e-06
0.359897	1.523564	1.023470e-06
0.361352	1.52317	8.470223e-07
0.362812	1.522778	6.698611e-07
0.364279	1.52239	4.919839e-07
0.365	1.522201	4.045000e-07
0.365751	1.522005	3.987027e-07
0.367229	1.521623	3.872929e-07
0.368714	1.521244	3.758371e-07
0.370204	1.520868	3.643349e-07
0.3717	1.520495	3.527863e-07
0.373203	1.520124	3.411909e-07
0.374711	1.519757	3.295488e-07
0.376226	1.519392	3.178595e-07
0.377746	1.519031	3.061230e-07
0.379273	1.518672	2.943391e-07
0.380806	1.518316	2.825075e-07
0.382345	1.517963	2.706282e-07
0.38389	1.517612	2.587008e-07
0.385442	1.517264	2.467252e-07
0.387	1.516919	2.347012e-07
0.388564	1.516577	2.226286e-07
0.390135	1.516237	2.105072e-07
0.391712	1.5159	1.983368e-07
0.393295	1.515566	1.861172e-07
0.394884	1.515234	1.738482e-07
0.39648	1.514905	1.615297e-07
0.398083	1.514578	1.491613e-07
0.399692	1.514254	1.367430e-07
0.401307	1.513933	1.242744e-07
0.402929	1.513614	1.117555e-07
0.404558	1.513297	9.918598e-08
0.4047	1.51327	9.809000e-08
0.406193	1.512983	9.690619e-08
0.407835	1.512672	9.560455e-08
0.409483	1.512363	9.429765e-08
0.411138	1.512056	9.298548e-08
0.4128	1.511752	9.166799e-08
0.414469	1.51145	9.034518e-08
0.416144	1.51115	8.901703e-08
0.417826	1.510853	8.768351e-08
0.419515	1.510558	8.634460e-08
0.42121	1.510266	8.500027e-08
0.422913	1.509976	8.365051e-08
0.424622	1.509688	8.229530e-08
0.426338	1.509402	8.093461e-08
0.428061	1.509119	7.956842e-08
0.429792	1.508838	7.819671e-08
0.431529	1.508559	7.681945e-08
0.433273	1.508282	7.543663e-08
0.435024	1.508007	7.404822e-08
0.436782	1.507735	7.265419e-08
0.438548	1.507465	7.125454e-08
0.44032	1.507196	6.984922e-08
0.4421	1.50693	6.843823e-08
0.443887	1.506666	6.702153e-08
0.445681	1.506404	6.559910e-08
0.447482	1.506145	6.417093e-08
0.449291	1.505887	6.273698e-08
0.451107	1.505631	6.129724e-08
0.45293	1.505377	5.985168e-08
0.454761	1.505126	5.840028e-08
0.456599	1.504876	5.694301e-08
0.458444	1.504628	5.547985e-08
0.460297	1.504382	5.401077e-08
0.462158	1.504138	5.253576e-08
0.464026	1.503896	5.105479e-08
0.465901	1.503656	4.956783e-08
0.467784	1.503418	4.807486e-08
0.469675	1.503182	4.657586e-08
0.471573	1.502948	4.507079e-08
0.473479	1.502715	4.355965e-08
0.475393	1.502484	4.204240e-08
0.477315	1.502255	4.051901e-08
0.479244	1.502028	3.898947e-08
0.48	1.50194	3.839000e-08
0.481181	1.501803	3.848486e-08
0.483126	1.501579	3.864109e-08
0.485078	1.501358	3.879794e-08
0.4861	1.501243	3.888000e-08
0.487039	1.501138	3.827148e-08
0.489008	1.500919	3.699588e-08
0.490984	1.500703	3.571512e-08
0.492969	1.500488	3.442918e-08
0.494961	1.500275	3.313804e-08
0.496962	1.500063	3.184169e-08
0.49897	1.499854	3.054010e-08
0.500987	1.499646	2.923324e-08
0.503012	1.499439	2.792111e-08
0.505045	1.499234	2.660367e-08
0.507086	1.499031	2.528090e-08
0.509136	1.498829	2.395279e-08
0.511194	1.498629	2.261931e-08
0.51326	1.498431	2.128044e-08
0.515334	1.498234	1.993616e-08
0.517417	1.498039	1.858645e-08
0.519509	1.497845	1.723128e-08
0.521608	1.497653	1.587063e-08
0.523717	1.497462	1.450449e-08
0.525833	1.497273	1.313282e-08
0.527959	1.497085	1.175561e-08
0.530093	1.496899	1.037283e-08
0.532235	1.496714	8.984465e-09
0.534386	1.496531	7.590487e-09
0.536546	1.496349	6.190874e-09
0.538715	1.496169	4.785604e-09
0.540892	1.49599	3.374655e-09
0.543078	1.495812	1.958003e-09
0.545273	1.495636	5.356247e-10
0.5461	1.495571	0
0.547477	1.495462	0
0.54969	1.495288	0
0.551912	1.495116	0
0.554143	1.494946	0
0.556382	1.494777	0
0.558631	1.494609	0
0.560889	1.494442	0
0.563156	1.494277	0
0.565432	1.494113	0
0.567718	1.49395	0
0.570012	1.493789	0
0.572316	1.493629	0
0.574629	1.49347	0
0.576952	1.493313	0
0.579284	1.493156	0
0.581625	1.493001	0
0.583976	1.492847	0
0.586336	1.492695	0
0.588706	1.492543	0
0.5893	1.492506	0
0.591086	1.492393	0
0.593475	1.492244	0
0.595873	1.492097	0
0.598282	1.49195	0
0.6007	1.491804	0
0.603128	1.49166	0
0.605566	1.491517	0
0.608013	1.491375	0
0.610471	1.491234	0
0.612938	1.491094	0
0.615416	1.490956	0
0.617903	1.490818	0
0.6204	1.490682	0
0.622908	1.490546	0
0.625426	1.490412	0
0.627953	1.490279	0
0.630492	1.490147	0
0.6328	1.490028	0
0.63304	1.490016	0
0.635599	1.489885	0
0.638168	1.489756	0
0.640747	1.489628	0
0.643337	1.489501	0
0.6439	1.489474	0
0.645937	1.489375	0
0.648548	1.48925	0
0.651169	1.489126	0
0.653801	1.489003	0
0.6563	1.488888	0
0.656443	1.488881	0
0.659097	1.48876	0
0.661761	1.48864	0
0.664435	1.488521	0
0.667121	1.488403	0
0.669817	1.488286	0
0.672525	1.48817	0
0.675243	1.488054	0
0.677972	1.48794	0
0.680712	1.487826	0
0.683464	1.487714	0
0.686226	1.487602	0
0.689	1.487491	0
0.691784	1.487381	0
0.6943	1.487283	0
0.694581	1.487272	1.293428e-10
0.697388	1.487164	1.423779e-09
0.700207	1.487056	2.723447e-09
0.703037	1.48695	4.028368e-09
0.705878	1.486844	5.338563e-09
0.708731	1.486739	6.654053e-09
0.711596	1.486635	7.974861e-09
0.714472	1.486532	9.301007e-09
0.71736	1.48643	1.063251e-08
0.720259	1.486328	1.196940e-08
0.72317	1.486228	1.331169e-08
0.726093	1.486128	1.465941e-08
0.729028	1.486029	1.601257e-08
0.731975	1.48593	1.737121e-08
0.734933	1.485833	1.873533e-08
0.737904	1.485736	2.010497e-08
0.740886	1.48564	2.148014e-08
0.743881	1.485545	2.286088e-08
0.746887	1.48545	2.424719e-08
0.749906	1.485357	2.563910e-08
0.752937	1.485264	2.703665e-08
0.75598	1.485172	2.843984e-08
0.759036	1.48508	2.984870e-08
0.762104	1.484989	3.126326e-08
0.765184	1.484899	3.268353e-08
0.768277	1.48481	3.410954e-08
0.771382	1.484722	3.554132e-08
0.7745	1.484634	3.697889e-08
0.77763	1.484546	3.842226e-08
0.780773	1.48446	3.987147e-08
0.783929	1.484374	4.132654e-08
0.787098	1.484289	4.278749e-08
0.790279	1.484205	4.425434e-08
0.793473	1.484121	4.572712e-08
0.79668	1.484038	4.720585e-08
0.7999	1.483955	4.869057e-08
0.803133	1.483874	5.018128e-08
0.806379	1.483793	5.167801e-08
0.809639	1.483712	5.318080e-08
0.812911	1.483632	5.468966e-08
0.816197	1.483553	5.620462e-08
0.819496	1.483475	5.772570e-08
0.822808	1.483397	5.925293e-08
0.826133	1.483319	6.078634e-08
0.829473	1.483243	6.232594e-08
0.832825	1.483167	6.387176e-08
0.836191	1.483091	6.542383e-08
0.839571	1.483016	6.698218e-08
0.84	1.483007	6.718000e-08
0.842964	1.482942	6.855168e-08
0.846371	1.482868	7.012823e-08
0.849792	1.482795	7.171115e-08
0.853227	1.482723	7.330046e-08
0.856676	1.482651	7.489621e-08
0.860138	1.48258	7.649840e-08
0.863615	1.482509	7.810707e-08
0.867105	1.482439	7.972224e-08
0.87061	1.482369	8.134393e-08
0.874129	1.4823	8.297219e-08
0.877662	1.482231	8.460702e-08
0.881209	1.482163	8.624846e-08
0.884771	1.482096	8.789654e-08
0.888347	1.482029	8.955127e-08
0.891938	1.481963	9.121270e-08
0.895543	1.481897	9.288084e-08
0.899162	1.481831	9.455572e-08
0.902797	1.481767	9.623737e-08
0.906445	1.481702	9.792582e-08
0.910109	1.481639	9.962110e-08
0.913788	1.481575	1.013232e-07
0.917481	1.481513	1.030322e-07
0.921189	1.48145	1.047481e-07
0.924913	1.481389	1.064710e-07
0.928651	1.481327	1.082008e-07
0.932404	1.481267	1.099376e-07
0.936173	1.481206	1.116814e-07
0.939957	1.481147	1.134323e-07
0.943756	1.481087	1.151902e-07
0.947571	1.481028	1.169553e-07
0.9514	1.48097	1.187275e-07
0.955246	1.480912	1.205068e-07
0.959107	1.480855	1.222934e-07
0.962983	1.480798	1.240871e-07
0.966876	1.480741	1.258882e-07
0.970783	1.480685	1.276964e-07
0.974707	1.48063	1.295120e-07
0.978647	1.480574	1.313350e-07
0.982602	1.48052	1.331653e-07
0.986574	1.480465	1.350030e-07
0.990561	1.480412	1.368481e-07
0.994565	1.480358	1.387007e-07
0.998585	1.480305	1.405608e-07
1.00262	1.480253	1.424284e-07
1.00667	1.4802	1.443035e-07
1.01074	1.480149	1.461863e-07
1.01483	1.480097	1.480766e-07
1.01893	1.480046	1.499746e-07
1.02305	1.479996	1.518802e-07
1.02718	1.479946	1.537936e-07
1.03133	1.479896	1.557146e-07
1.0355	1.479847	1.576435e-07
1.03969	1.479798	1.595801e-07
1.04389	1.479749	1.615246e-07
1.04811	1.479701	1.634769e-07
1.05235	1.479654	1.654372e-07
1.0566	1.479606	1.674053e-07
1.06087	1.479559	1.693814e-07
1.0648	1.479516	1.712000e-07
1.06516	1.479513	1.719130e-07
1.06946	1.479466	1.804959e-07
1.07379	1.47942	1.891135e-07
1.07813	1.479375	1.977659e-07
1.08248	1.47933	2.064533e-07
1.08686	1.479285	2.151758e-07
1.09125	1.479241	2.239336e-07
1.09566	1.479197	2.327267e-07
1.10009	1.479153	2.415554e-07
1.10454	1.47911	2.504198e-07
1.109	1.479067	2.593200e-07
1.11348	1.479024	2.682562e-07
1.11798	1.478982	2.772285e-07
1.1225	1.47894	2.862371e-07
1.12704	1.478898	2.952821e-07
1.13159	1.478857	3.043636e-07
1.13617	1.478816	3.134819e-07
1.14076	1.478775	3.226370e-07
1.14537	1.478735	3.318291e-07
1.15	1.478695	3.410583e-07
1.15465	1.478655	3.503249e-07
1.15932	1.478616	3.596289e-07
1.164	1.478577	3.689705e-07
1.16871	1.478538	3.783499e-07
1.17343	1.478499	3.877672e-07
1.17817	1.478461	3.972226e-07
1.18293	1.478424	4.067161e-07
1.18772	1.478386	4.162481e-07
1.19252	1.478349	4.258185e-07
1.19734	1.478312	4.354277e-07
1.20218	1.478275	4.450757e-07
1.20703	1.478239	4.547626e-07
1.21191	1.478203	4.644888e-07
1.21681	1.478167	4.742542e-07
1.22173	1.478132	4.840591e-07
1.22667	1.478097	4.939037e-07
1.23163	1.478062	5.037880e-07
1.2366	1.478027	5.137123e-07
1.2416	1.477993	5.236767e-07
1.24662	1.477959	5.336814e-07
1.25166	1.477925	5.437265e-07
1.25672	1.477891	5.538122e-07
1.2618	1.477858	5.639387e-07
1.2669	1.477825	5.741061e-07
1.27202	1.477792	5.843146e-07
1.27716	1.47776	5.945643e-07
1.28232	1.477728	6.048555e-07
1.2875	1.477696	6.151883e-07
1.29271	1.477664	6.255629e-07
1.29793	1.477633	6.359793e-07
1.3	1.47762	6.401000e-07
1.30318	1.477602	6.502337e-07
1.30845	1.477571	6.670235e-07
1.31373	1.47754	6.838811e-07
1.31904	1.47751	7.008069e-07
1.32438	1.477479	7.178011e-07
1.32973	1.477449	7.348640e-07
1.3351	1.47742	7.519959e-07
1.3405	1.47739	7.691970e-07
1.34592	1.477361	7.864676e-07
1.35136	1.477332	8.038080e-07
1.35682	1.477303	8.212186e-07
1.3623	1.477275	8.386994e-07
1.36781	1.477247	8.562510e-07
1.37334	1.477218	8.738735e-07
1.37889	1.477191	8.915672e-07
1.38446	1.477163	9.093324e-07
1.39006	1.477136	9.271694e-07
1.39568	1.477108	9.450786e-07
1.40132	1.477081	9.630601e-07
1.40698	1.477055	9.811143e-07
1.41267	1.477028	9.992414e-07
1.41838	1.477002	1.017442e-06
1.42411	1.476976	1.035716e-06
1.42987	1.47695	1.054064e-06
1.43565	1.476924	1.072486e-06
1.44145	1.476899	1.090982e-06
1.44727	1.476873	1.109553e-06
1.45312	1.476848	1.128200e-06
1.459	1.476823	1.146921e-06
1.46489	1.476799	1.165719e-06
1.47082	1.476774	1.184592e-06
1.47676	1.47675	1.203542e-06
1.48273	1.476726	1.222568e-06
1.48872	1.476702	1.241671e-06
1.49474	1.476678	1.260851e-06
1.50078	1.476655	1.280109e-06
1.50685	1.476631	1.299444e-06
1.51294	1.476608	1.318858e-06
1.51905	1.476585	1.338351e-06
1.52519	1.476563	1.357922e-06
1.53136	1.47654	1.377572e-06
1.53755	1.476518	1.397301e-06
1.54376	1.476495	1.417111e-06
1.55	1.476473	1.437000e-06

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: —

Plot