Optical constants

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

Querry 1987: n,k(e) 2.5–50 µm

Data: tabulated nk
Range: 2.5–50 µm
Points: 381
Optical axis: e
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: 0.154358
Extinction coefficient k: 0.957946

Permittivity ε₁: -0.893833
Permittivity ε₂: 0.295733

Absorption coefficient α: 10748.1 cm⁻¹
Penetration depth δ = λ/(2πk): 1860.79 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -1.59327 µm⁻¹

Group index n_g: 17.999
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 0.1107 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(e) 2.5–50 µm
camg = ls.fetch_refractiveindex("main", "CaMg_CO3_2", "Querry-e", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(camg.range_nm)  # (2500, 50000) nm
eps = camg.eps([11200])  # 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_8fa17c46f64b/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-e).

# ... 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=50000, 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

Extraordinary ray (e).

Conditions

direction: e

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

381 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(e) 2.5–50 µm: n and k versus wavelength
λ (µm)	n	k
2.5	1.492	0.0
2.5063	1.492	0.0
2.5126	1.49	0.0
2.5189	1.491	0.0
2.5253	1.49	0.001
2.5316	1.489	0.0
2.5381	1.488	0.001
2.5445	1.489	0.004
2.551	1.488	0.006
2.5575	1.493	0.004
2.5641	1.493	0.003
2.5707	1.49	0.002
2.5773	1.49	0.004
2.584	1.491	0.007
2.5907	1.493	0.003
2.5974	1.49	0.004
2.6042	1.492	0.003
2.611	1.488	0.005
2.6178	1.492	0.004
2.6247	1.49	0.005
2.6316	1.49	0.004
2.6385	1.488	0.006
2.6455	1.493	0.006
2.6525	1.49	0.008
2.6596	1.492	0.003
2.6667	1.488	0.005
2.6738	1.49	0.005
2.681	1.488	0.003
2.6882	1.487	0.008
2.6954	1.492	0.006
2.7027	1.49	0.006
2.71	1.488	0.006
2.7174	1.488	0.005
2.7248	1.486	0.007
2.7322	1.49	0.008
2.7397	1.487	0.006
2.7473	1.488	0.007
2.7548	1.488	0.008
2.7624	1.486	0.008
2.7701	1.487	0.007
2.7778	1.485	0.011
2.7855	1.488	0.012
2.7933	1.492	0.007
2.8011	1.487	0.01
2.809	1.49	0.009
2.8169	1.487	0.007
2.8249	1.486	0.01
2.8329	1.486	0.008
2.8409	1.489	0.011
2.849	1.487	0.01
2.8571	1.486	0.011
2.8653	1.49	0.012
2.8736	1.488	0.012
2.8818	1.49	0.009
2.8902	1.488	0.01
2.8986	1.486	0.012
2.907	1.489	0.011
2.9155	1.488	0.01
2.924	1.49	0.013
2.9326	1.488	0.01
2.9412	1.488	0.01
2.9499	1.485	0.011
2.9586	1.489	0.013
2.9674	1.488	0.011
2.9762	1.488	0.011
2.9851	1.487	0.015
2.994	1.492	0.01
3.003	1.487	0.009
3.0211	1.49	0.013
3.012	1.485	0.012
3.0303	1.489	0.011
3.0395	1.486	0.009
3.0488	1.488	0.011
3.0581	1.486	0.013
3.0675	1.487	0.01
3.0769	1.487	0.015
3.0864	1.489	0.01
3.096	1.487	0.013
3.1056	1.486	0.007
3.1153	1.484	0.012
3.125	1.485	0.012
3.1348	1.486	0.012
3.1447	1.484	0.013
3.1546	1.489	0.013
3.1646	1.483	0.01
3.1746	1.482	0.012
3.1847	1.487	0.015
3.1949	1.484	0.01
3.2051	1.485	0.014
3.2154	1.481	0.01
3.2258	1.484	0.017
3.2362	1.484	0.012
3.2468	1.483	0.015
3.2573	1.484	0.013
3.268	1.482	0.015
3.2787	1.485	0.014
3.2895	1.482	0.015
3.3003	1.481	0.016
3.3113	1.486	0.015
3.3223	1.482	0.015
3.3333	1.483	0.016
3.3445	1.486	0.016
3.3557	1.483	0.014
3.367	1.483	0.018
3.3784	1.484	0.014
3.3898	1.482	0.017
3.4014	1.483	0.019
3.413	1.486	0.017
3.4247	1.485	0.012
3.4364	1.48	0.017
3.4483	1.485	0.017
3.4602	1.485	0.016
3.4722	1.482	0.014
3.4843	1.483	0.018
3.4965	1.484	0.016
3.5088	1.482	0.017
3.5211	1.484	0.015
3.5336	1.482	0.015
3.5461	1.481	0.016
3.5587	1.481	0.015
3.5714	1.479	0.017
3.5842	1.481	0.017
3.5971	1.481	0.017
3.6101	1.48	0.017
3.6232	1.481	0.016
3.6364	1.48	0.016
3.6496	1.476	0.016
3.663	1.477	0.02
3.6765	1.479	0.021
3.69	1.481	0.018
3.7037	1.478	0.018
3.7175	1.479	0.02
3.7313	1.479	0.018
3.7453	1.479	0.019
3.7594	1.478	0.02
3.7736	1.479	0.018
3.7879	1.478	0.017
3.8023	1.473	0.022
3.8168	1.479	0.02
3.8314	1.478	0.02
3.8462	1.479	0.021
3.861	1.478	0.02
3.876	1.478	0.018
3.8911	1.474	0.019
3.9063	1.474	0.021
3.9216	1.476	0.022
3.937	1.477	0.024
3.9526	1.477	0.022
3.9683	1.478	0.022
3.9841	1.477	0.021
4.0	1.476	0.02
4.0161	1.476	0.021
4.0323	1.476	0.023
4.0486	1.477	0.02
4.065	1.475	0.019
4.0816	1.473	0.021
4.0984	1.474	0.021
4.1152	1.473	0.021
4.1322	1.473	0.021
4.1494	1.471	0.02
4.1667	1.471	0.023
4.1841	1.474	0.023
4.2017	1.471	0.022
4.2194	1.471	0.019
4.2373	1.467	0.023
4.2553	1.47	0.027
4.2735	1.473	0.022
4.2918	1.469	0.022
4.3103	1.468	0.025
4.329	1.47	0.024
4.3478	1.47	0.023
4.3668	1.469	0.024
4.386	1.469	0.024
4.4053	1.466	0.024
4.4248	1.468	0.023
4.4444	1.467	0.024
4.4643	1.467	0.024
4.4843	1.466	0.024
4.5045	1.465	0.024
4.5249	1.465	0.024
4.5455	1.463	0.024
4.5662	1.463	0.027
4.5872	1.464	0.025
4.6083	1.462	0.026
4.6296	1.462	0.026
4.6512	1.462	0.025
4.6729	1.459	0.026
4.6948	1.461	0.028
4.717	1.46	0.027
4.7393	1.459	0.027
4.7619	1.459	0.028
4.7847	1.46	0.028
4.8077	1.457	0.027
4.8309	1.458	0.026
4.8544	1.456	0.025
4.878	1.451	0.027
4.902	1.454	0.031
4.9261	1.455	0.027
4.9505	1.452	0.028
4.9751	1.452	0.027
5.0	1.45	0.029
5.0251	1.45	0.027
5.0505	1.447	0.028
5.0761	1.446	0.03
5.102	1.446	0.03
5.1282	1.447	0.028
5.1546	1.442	0.029
5.1813	1.444	0.03
5.2083	1.441	0.029
5.2356	1.438	0.029
5.2632	1.438	0.031
5.291	1.436	0.029
5.3191	1.433	0.031
5.3476	1.433	0.031
5.3763	1.43	0.031
5.4054	1.426	0.031
5.4348	1.423	0.034
5.4645	1.422	0.036
5.4945	1.421	0.04
5.5249	1.421	0.04
5.5556	1.42	0.038
5.5866	1.418	0.039
5.618	1.415	0.037
5.6497	1.412	0.038
5.6818	1.408	0.038
5.7143	1.404	0.039
5.7471	1.4	0.038
5.7803	1.395	0.039
5.814	1.389	0.041
5.848	1.385	0.043
5.8824	1.379	0.042
5.9172	1.371	0.044
5.9524	1.363	0.046
5.988	1.354	0.045
6.0241	1.342	0.045
6.0606	1.325	0.051
6.0976	1.31	0.051
6.135	1.288	0.052
6.1728	1.253	0.056
6.2112	1.208	0.067
6.25	1.15	0.082
6.2893	1.046	0.097
6.3291	0.734	0.181
6.3694	0.47	0.869
6.4103	1.38	2.163
6.4516	2.671	0.485
6.4935	2.075	0.117
6.5359	1.869	0.079
6.5789	1.774	0.062
6.6225	1.712	0.052
6.6667	1.672	0.049
6.7114	1.641	0.046
6.7568	1.62	0.043
6.8027	1.602	0.042
6.8493	1.589	0.042
6.8966	1.576	0.037
6.9444	1.564	0.038
6.993	1.556	0.037
7.0423	1.547	0.034
7.0922	1.536	0.035
7.1429	1.532	0.035
7.1942	1.523	0.035
7.2464	1.518	0.035
7.2993	1.511	0.036
7.3529	1.507	0.035
7.4074	1.5	0.038
7.4627	1.498	0.039
7.5188	1.492	0.039
7.5758	1.49	0.041
7.6336	1.485	0.041
7.6923	1.484	0.042
7.7519	1.479	0.041
7.8125	1.477	0.043
7.874	1.473	0.043
7.9365	1.47	0.045
8.0	1.467	0.044
8.0645	1.464	0.044
8.1301	1.461	0.046
8.1967	1.457	0.044
8.2645	1.454	0.047
8.3333	1.45	0.047
8.4034	1.449	0.046
8.4746	1.444	0.047
8.547	1.44	0.047
8.6207	1.437	0.049
8.6957	1.434	0.048
8.7719	1.429	0.049
8.8496	1.423	0.05
8.9286	1.419	0.052
9.009	1.416	0.053
9.0909	1.414	0.057
9.1743	1.41	0.051
9.2593	1.403	0.052
9.3458	1.397	0.053
9.434	1.389	0.053
9.5238	1.385	0.054
9.6154	1.376	0.052
9.7087	1.366	0.054
9.8039	1.359	0.055
9.901	1.346	0.053
10.0	1.333	0.055
10.101	1.318	0.055
10.2041	1.3	0.055
10.3093	1.281	0.058
10.4167	1.255	0.059
10.5263	1.224	0.061
10.6383	1.182	0.063
10.7527	1.122	0.065
10.8696	1.03	0.072
10.989	0.902	0.01
11.1111	0.296	0.296
11.236	0.097	1.226
11.3636	0.829	3.271
11.4943	3.41	0.004
11.6279	2.162	0.017
11.7647	1.949	0.057
11.9048	1.806	0.026
12.0482	1.722	0.035
12.1951	1.663	0.037
12.3457	1.622	0.041
12.5	1.59	0.042
12.6582	1.562	0.044
12.8205	1.539	0.047
12.987	1.518	0.047
13.1579	1.499	0.051
13.3333	1.481	0.053
13.5135	1.456	0.061
13.6986	1.466	0.09
13.8889	1.468	0.06
14.0845	1.443	0.057
14.2857	1.428	0.059
14.4928	1.415	0.063
14.7059	1.402	0.065
14.9254	1.391	0.061
15.1515	1.376	0.064
15.3846	1.359	0.067
15.625	1.34	0.074
15.873	1.343	0.076
16.129	1.326	0.074
16.3934	1.311	0.07
16.6667	1.295	0.067
16.9492	1.271	0.067
17.2414	1.245	0.07
17.5439	1.226	0.075
17.8571	1.2	0.077
18.1818	1.178	0.083
18.5185	1.144	0.085
18.8679	1.116	0.091
19.2308	1.074	0.096
19.6078	1.04	0.117
20.0	1.004	0.118
20.4082	0.953	0.124
20.8333	0.892	0.128
21.2766	0.808	0.147
21.7391	0.711	0.169
22.2222	0.576	0.222
22.7273	0.425	0.336
23.2558	0.296	0.521
23.8095	0.222	0.751
24.3902	0.195	0.998
25.0	0.198	1.266
25.641	0.239	1.594
26.3158	0.387	2.028
27.027	0.839	2.548
27.7778	1.93	2.702
28.5714	2.495	1.644
29.4118	2.005	1.142
30.303	1.656	1.275
31.25	1.734	1.763
32.2581	2.656	1.756
33.3333	2.682	0.827
34.4828	2.34	0.595
35.7143	2.111	0.506
37.037	1.97	0.544
38.4615	1.968	0.501
40.0	1.852	0.38
41.6667	1.708	0.347
43.4783	1.613	0.315
45.4545	1.444	0.232
47.619	1.252	0.165
50.0	0.789	0.026

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-e.yml
ID: ds_8fa17c46f64b
API: /v1/datasets/ds_8fa17c46f64b

Plot