Optical constants

Refractive index of CaMg(CO₃)₂ (Calcium magnesium carbonate, Dolomite)

Querry 1987: n,k(o) 2.5–40 µm

Data: tabulated nk
Range: 2.5–40 µm
Points: 376
Optical axis: o
Licence: CC0-1.0

Uniaxial crystal, axes: oe

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.842
Extinction coefficient k: 0.004

Permittivity ε₁: 3.39295
Permittivity ε₂: 0.014736

Absorption coefficient α: 50.2655 cm⁻¹
Penetration depth δ = λ/(2πk): 397887 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.0848585 µm⁻¹

Group index n_g: 2.69058
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 0.123984 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

# CaMg(CO3)2 (Calcium magnesium carbonate, Dolomite): Querry 1987: n,k(o) 2.5–40 µm
camg = ls.fetch_refractiveindex("main", "CaMg_CO3_2", "Querry-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(camg.range_nm)  # (2500, 40000) nm
eps = camg.eps([10000])  # 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_c30fd2ec762b/lightsmith"
camg = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(camg.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (camg-co3-2/querry-1987-o).

# ... load camg as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=camg)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=2500, stop_nm=40000, 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

Ordinary ray (o).

Conditions

direction: o

References

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet, Contractor Report CRDEC-CR-88009 (1987)

Cite

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet, Contractor Report CRDEC-CR-88009 (1987); Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

376 rows as published

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

CaMg(CO3)2 (Calcium magnesium carbonate, Dolomite), Querry 1987: n,k(o) 2.5–40 µm: n and k versus wavelength
λ (µm)	n	k
3.1546	1.558	0.013
2.5	1.578	0.0
2.5063	1.579	0.0
2.5126	1.576	0.0
2.5189	1.578	0.0
2.5253	1.576	0.0
2.5316	1.578	0.0
2.5381	1.575	0.0
2.5445	1.576	0.001
2.551	1.575	0.003
2.5575	1.576	0.003
2.5641	1.579	0.002
2.5707	1.576	0.002
2.5773	1.578	0.002
2.584	1.576	0.005
2.5907	1.578	0.001
2.5974	1.575	0.002
2.6042	1.578	0.004
2.611	1.573	0.002
2.6178	1.577	0.002
2.6247	1.574	0.005
2.6316	1.576	0.005
2.6385	1.573	0.003
2.6455	1.576	0.006
2.6525	1.574	0.005
2.6596	1.573	0.004
2.6667	1.572	0.008
2.6738	1.575	0.005
2.681	1.572	0.006
2.6882	1.574	0.007
2.6954	1.574	0.007
2.7027	1.574	0.006
2.71	1.57	0.004
2.7174	1.571	0.006
2.7248	1.569	0.008
2.7322	1.571	0.009
2.7397	1.571	0.006
2.7473	1.567	0.007
2.7548	1.569	0.01
2.7624	1.57	0.01
2.7701	1.57	0.008
2.7778	1.568	0.011
2.7855	1.569	0.01
2.7933	1.569	0.012
2.8011	1.568	0.01
2.809	1.57	0.011
2.8169	1.57	0.012
2.8249	1.57	0.01
2.8329	1.568	0.009
2.8409	1.568	0.012
2.849	1.567	0.011
2.8571	1.568	0.013
2.8653	1.569	0.012
2.8736	1.568	0.012
2.8818	1.567	0.012
2.8902	1.569	0.011
2.8986	1.566	0.012
2.907	1.566	0.01
2.9155	1.565	0.012
2.924	1.568	0.014
2.9326	1.566	0.011
2.9412	1.566	0.011
2.9499	1.561	0.013
2.9586	1.566	0.014
2.9674	1.566	0.013
2.9762	1.564	0.012
2.9851	1.564	0.012
2.994	1.563	0.012
3.003	1.563	0.012
3.012	1.561	0.014
3.0211	1.564	0.015
3.0303	1.563	0.013
3.0395	1.562	0.013
3.0488	1.564	0.012
3.0581	1.561	0.012
3.0675	1.561	0.013
3.0769	1.559	0.013
3.0864	1.56	0.014
3.096	1.56	0.016
3.1056	1.562	0.011
3.1153	1.559	0.013
3.125	1.558	0.011
3.1348	1.556	0.014
3.1447	1.556	0.015
3.1646	1.553	0.012
3.1746	1.554	0.013
3.1847	1.555	0.017
3.1949	1.554	0.012
3.2051	1.553	0.016
3.2154	1.553	0.013
3.2258	1.553	0.017
3.2362	1.553	0.013
3.2468	1.551	0.014
3.2573	1.548	0.015
3.268	1.549	0.016
3.2787	1.549	0.016
3.2895	1.546	0.018
3.3003	1.544	0.019
3.3113	1.548	0.022
3.3223	1.547	0.023
3.3333	1.551	0.021
3.3445	1.552	0.019
3.3557	1.546	0.019
3.367	1.548	0.023
3.3784	1.548	0.018
3.3898	1.547	0.02
3.4014	1.546	0.022
3.413	1.547	0.02
3.4247	1.545	0.021
3.4364	1.542	0.022
3.4483	1.546	0.025
3.4602	1.549	0.025
3.4722	1.546	0.023
3.4843	1.551	0.024
3.4965	1.55	0.02
3.5088	1.55	0.019
3.5211	1.547	0.015
3.5336	1.544	0.018
3.5461	1.547	0.016
3.5587	1.542	0.014
3.5714	1.54	0.014
3.5842	1.538	0.018
3.5971	1.539	0.017
3.6102	1.537	0.018
3.6232	1.537	0.015
3.6364	1.536	0.018
3.6496	1.533	0.016
3.663	1.533	0.019
3.6765	1.534	0.021
3.69	1.535	0.017
3.7037	1.532	0.016
3.7175	1.528	0.016
3.7313	1.529	0.017
3.7453	1.524	0.019
3.7594	1.524	0.019
3.7736	1.524	0.021
3.7879	1.523	0.021
3.8023	1.52	0.026
3.8168	1.525	0.023
3.8314	1.524	0.021
3.8462	1.519	0.022
3.861	1.516	0.024
3.876	1.517	0.028
3.8911	1.515	0.025
3.9063	1.512	0.033
3.9216	1.515	0.035
3.937	1.519	0.041
3.9526	1.523	0.041
3.9683	1.532	0.04
3.9841	1.534	0.029
4.0	1.53	0.025
4.0161	1.529	0.022
4.0323	1.523	0.021
4.0486	1.523	0.021
4.065	1.522	0.019
4.0816	1.517	0.018
4.0984	1.516	0.019
4.1152	1.515	0.017
4.1322	1.511	0.018
4.1494	1.509	0.019
4.1667	1.51	0.019
4.1841	1.507	0.019
4.2017	1.507	0.018
4.2194	1.501	0.018
4.2373	1.502	0.018
4.2553	1.498	0.02
4.2735	1.5	0.02
4.2918	1.496	0.019
4.3103	1.495	0.021
4.329	1.495	0.021
4.3478	1.493	0.017
4.3668	1.49	0.018
4.386	1.487	0.019
4.4053	1.484	0.019
4.4248	1.484	0.019
4.4444	1.482	0.02
4.4643	1.48	0.019
4.4843	1.478	0.02
4.5045	1.475	0.018
4.5249	1.473	0.02
4.5455	1.471	0.019
4.5662	1.468	0.02
4.5872	1.466	0.02
4.6083	1.463	0.021
4.6296	1.463	0.021
4.6512	1.458	0.019
4.6729	1.456	0.021
4.6948	1.454	0.02
4.717	1.452	0.02
4.7393	1.447	0.019
4.7619	1.445	0.021
4.7847	1.442	0.018
4.8077	1.437	0.021
4.8309	1.436	0.02
4.8544	1.432	0.018
4.878	1.426	0.02
4.902	1.424	0.022
4.9261	1.421	0.019
4.9505	1.416	0.02
4.9751	1.412	0.02
5.0	1.409	0.021
5.0251	1.403	0.019
5.0505	1.397	0.019
5.0761	1.391	0.022
5.102	1.389	0.022
5.1282	1.384	0.02
5.1546	1.375	0.022
5.1813	1.372	0.022
5.2083	1.365	0.022
5.2356	1.359	0.019
5.2632	1.351	0.023
5.291	1.344	0.022
5.3191	1.336	0.024
5.3476	1.328	0.022
5.3763	1.318	0.021
5.4054	1.306	0.025
5.4348	1.291	0.027
5.4645	1.275	0.042
5.4945	1.279	0.059
5.5249	1.29	0.057
5.5556	1.286	0.044
5.5866	1.273	0.04
5.618	1.262	0.034
5.6497	1.245	0.033
5.6818	1.231	0.03
5.7143	1.213	0.032
5.7471	1.196	0.031
5.7803	1.177	0.032
5.814	1.156	0.032
5.848	1.14	0.038
5.8824	1.117	0.034
5.9172	1.09	0.033
5.9524	1.061	0.038
5.988	1.024	0.038
6.0241	0.998	0.05
6.0606	0.96	0.05
6.0976	0.921	0.051
6.135	0.867	0.054
6.1728	0.807	0.06
6.2112	0.738	0.072
6.25	0.66	0.083
6.2893	0.554	0.089
6.3291	0.373	0.105
6.3694	0.144	0.296
6.4103	0.086	0.551
6.4516	0.077	0.75
6.4935	0.08	0.931
6.5359	0.089	1.107
6.5789	0.102	1.286
6.6225	0.12	1.478
6.6667	0.147	1.689
6.7114	0.187	1.925
6.7568	0.241	2.202
6.8027	0.326	2.546
6.8493	0.49	2.979
6.8966	0.774	3.492
6.9444	1.181	4.25
6.993	2.657	5.709
7.0423	6.584	3.793
7.0922	5.35	1.022
7.1429	4.431	0.351
7.1942	3.771	0.15
7.2464	3.392	0.095
7.2993	3.141	0.054
7.3529	2.942	0.029
7.4074	2.79	0.024
7.4627	2.676	0.024
7.5188	2.583	0.017
7.5758	2.503	0.017
7.6336	2.437	0.018
7.6923	2.382	0.017
7.7519	2.333	0.015
7.8125	2.29	0.014
7.874	2.249	0.012
7.9365	2.214	0.017
8.0	2.185	0.015
8.0645	2.156	0.016
8.1301	2.134	0.018
8.1967	2.112	0.015
8.2645	2.091	0.013
8.3333	2.068	0.016
8.4034	2.054	0.016
8.4746	2.038	0.014
8.547	2.021	0.01
8.6207	2.005	0.012
8.6957	1.991	0.011
8.7719	1.978	0.011
8.8496	1.964	0.011
8.9286	1.952	0.011
9.009	1.943	0.012
9.0909	1.932	0.01
9.1743	1.921	0.01
9.2593	1.913	0.009
9.3458	1.902	0.008
9.434	1.892	0.007
9.5238	1.884	0.008
9.6154	1.874	0.006
9.7087	1.865	0.008
9.8039	1.859	0.007
9.901	1.849	0.005
10.0	1.842	0.004
10.101	1.832	0.005
10.2041	1.825	0.006
10.3093	1.817	0.004
10.4167	1.809	0.005
10.5263	1.801	0.005
10.6383	1.795	0.007
10.7527	1.789	0.005
10.8696	1.778	0.005
10.989	1.772	0.005
11.1111	1.762	0.007
11.236	1.758	0.008
11.3636	1.754	0.009
11.4943	1.747	0.004
11.6279	1.735	0.004
11.7647	1.726	0.004
11.9048	1.718	0.004
12.0482	1.71	0.005
12.1951	1.696	0.004
12.3457	1.689	0.008
12.5	1.678	0.009
12.6582	1.668	0.01
12.8205	1.653	0.011
12.987	1.634	0.011
13.1579	1.611	0.017
13.3333	1.57	0.026
13.5135	1.452	0.1
13.6986	1.686	0.426
13.8889	1.847	0.029
14.0845	1.719	0.008
14.2857	1.679	0.008
14.4928	1.652	0.012
14.7059	1.634	0.011
14.9254	1.612	0.012
15.1515	1.599	0.016
15.3846	1.582	0.019
15.625	1.57	0.019
15.873	1.557	0.016
16.129	1.534	0.018
16.3934	1.514	0.021
16.6667	1.499	0.018
16.9492	1.472	0.023
17.2414	1.449	0.024
17.5439	1.422	0.028
17.8571	1.392	0.033
18.1818	1.361	0.042
18.5185	1.325	0.049
18.8679	1.292	0.059
19.2308	1.249	0.069
19.6078	1.203	0.086
20.0	1.16	0.102
20.4082	1.105	0.107
20.8333	1.023	0.111
21.2766	0.913	0.141
21.7391	0.78	0.182
22.2222	0.604	0.282
22.7273	0.431	0.474
23.2558	0.319	0.736
23.8095	0.269	1.023
24.3902	0.264	1.331
25.0	0.291	1.668
25.641	0.367	2.069
26.3158	0.539	2.559
27.027	0.879	3.157
27.7778	1.597	3.997
28.5714	3.856	4.448
29.4118	5.102	1.998
30.303	4.294	0.621
31.25	3.552	0.27
32.2581	3.102	0.168
33.3333	2.739	0.149
34.4828	2.424	0.212
35.7143	2.021	0.451
37.037	1.869	1.262
38.4615	3.382	2.324
40.0	3.906	0.0

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: —

CaMg(CO₃)₂ (Calcium magnesium carbonate, Dolomite): all datasets

About CaMg(CO3)2 (Calcium magnesium carbonate, Dolomite)

Calcium magnesium carbonate (CaMg(CO₃)₂), commonly known as dolomite, is a double carbonate mineral that exhibits a range of properties making it versatile for various applications. It has a trigonal crystal structure and often occurs as rhombohedral crystals or granular masses. Dolomite's optical properties are of interest in the field of mineralogy, including its birefringence and its ability to fluoresce under ultraviolet light. However, its primary applications are industrial and not optical. It serves as a significant resource for magnesium and is extensively used in the production of cement and as a filler material in various industries like rubber, paints, and plastics. It is also a key component in agricultural lime, which is used to adjust soil pH and improve plant health. In the environmental context, dolomite is often used for water treatment and as a soil conditioner. Its natural abundance, coupled with its diverse range of applications, makes dolomite an economically important mineral in both industrial and agricultural sectors. Mineral: Dolomite

Dolomite - Wikipedia

More about CaMg(CO3)2 (Calcium magnesium carbonate, Dolomite) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/CaMg(CO3)2/nk/Querry-o.yml
ID: ds_c30fd2ec762b
API: /v1/datasets/ds_c30fd2ec762b

Plot