Optical constants

Refractive index of MgH2 (Magnesium hydride)

Palm et al. 2018: n,k 0.250–1.68 µm

Data: tabulated nk
Range: 0.25–1.685 µm
Points: 670
State: gas
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.90493
Extinction coefficient k: 1.139

Permittivity ε₁: 2.33143
Permittivity ε₂: 4.33942

Absorption coefficient α: 243585 cm⁻¹
Penetration depth δ = λ/(2πk): 82.1067 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 3.88793 µm⁻¹

Group index n_g: -0.37962
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — 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

# MgH2 (Magnesium hydride): Palm et al. 2018: n,k 0.250–1.68 µm
mgh2 = ls.fetch_refractiveindex("main", "MgH2", "Palm", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mgh2.range_nm)  # (250.02, 1684.53) nm
eps = mgh2.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_41fcb681bbf0/lightsmith"
mgh2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(mgh2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (mgh2/palm-2018).

# ... load mgh2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=mgh2)],
    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.

Comments and conditions

Magnesium Hydride, Under 7 bar H2 gas, Room temperature, 200 nm thin film, electron beam evaporated, vacuum annealed 2 hr 350 °C.

References

K. J. Palm, J. B. Murray, T. C. Narayan, J. N. Munday. Dynamic optical properties of metal hydrides. ACS Photonics 5, 4677-4686 (2018)
(Numerical data kindly provided by Kevin Palm)

doi:10.1021/acsphotonics.8b01243 Dynamic Optical Properties of Metal Hydrides, ACS Photonics (2018)

Cite

Kevin J. Palm, Joseph B. Murray, Tarun C. Narayan and Jeremy N. Munday. Dynamic Optical Properties of Metal Hydrides. ACS Photonics, 5, 4677-4686 (2018), doi:10.1021/acsphotonics.8b01243; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

670 rows as published

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

MgH2 (Magnesium hydride), Palm et al. 2018: n,k 0.250–1.68 µm: n and k versus wavelength
λ (µm)	n	k
0.250019531	2.343867	0.0
0.251615875	2.331728	0.0
0.253212234	2.319186	0.0
0.254808594	2.306297	0.0
0.256404968	2.293265	0.0
0.258001404	2.280465	0.0
0.259597809	2.268124	0.0
0.261194214	2.256364	0.002257
0.262790649	2.245255	0.00599
0.264387085	2.234828	0.009849
0.265983551	2.225088	0.013739
0.267580017	2.216019	0.01757
0.269176483	2.207588	0.021259
0.27077298	2.199751	0.024732
0.272369446	2.192445	0.027916
0.273965973	2.185583	0.030743
0.275562469	2.179042	0.033189
0.277158997	2.172723	0.035282
0.278755524	2.166557	0.037061
0.280352081	2.160494	0.038566
0.281948608	2.154499	0.039837
0.283545135	2.148548	0.040915
0.285141693	2.142634	0.041827
0.286738251	2.136744	0.042587
0.288334839	2.130863	0.043208
0.289931396	2.124967	0.043703
0.291527985	2.119029	0.044089
0.293124573	2.113026	0.044397
0.29472113	2.106941	0.04466
0.296317719	2.100764	0.044909
0.297914307	2.094489	0.045182
0.299510895	2.088115	0.045516
0.301107483	2.081648	0.045949
0.302704071	2.075102	0.046522
0.30430069	2.0685	0.047272
0.305897278	2.061878	0.048237
0.307493866	2.05528	0.049442
0.309090485	2.04876	0.050908
0.310687073	2.042381	0.052639
0.312283661	2.036215	0.054621
0.31388028	2.030329	0.05682
0.315476868	2.024785	0.059172
0.317073456	2.019624	0.061596
0.318670044	2.01486	0.063992
0.320266632	2.010471	0.066256
0.32186322	2.006391	0.068294
0.323459808	2.002518	0.070053
0.325056396	1.998758	0.071538
0.326652954	1.995043	0.072775
0.328249542	1.991331	0.073804
0.32984613	1.987611	0.074667
0.331442688	1.983901	0.07537
0.333039246	1.980193	0.075884
0.334635773	1.976446	0.076181
0.33623233	1.972597	0.076255
0.337828857	1.96857	0.076126
0.339425385	1.964291	0.075853
0.341021912	1.959728	0.075544
0.342618439	1.954914	0.075294
0.344214935	1.949908	0.075155
0.345811462	1.944771	0.075149
0.347407928	1.939557	0.075267
0.349004425	1.934304	0.075481
0.350600891	1.929008	0.075742
0.352197357	1.923635	0.076039
0.353793793	1.918156	0.076391
0.355390259	1.91256	0.076831
0.356986664	1.906854	0.077395
0.358583099	1.901057	0.078118
0.360179504	1.895214	0.079029
0.361775909	1.889376	0.080122
0.363372284	1.883576	0.081376
0.364968658	1.877833	0.082766
0.366565002	1.872157	0.084269
0.368161346	1.866552	0.085866
0.36975766	1.861021	0.087538
0.371353973	1.855558	0.089266
0.372950287	1.850153	0.091044
0.37454657	1.844801	0.092867
0.376142853	1.8395	0.094736
0.377739075	1.834252	0.096651
0.379335327	1.829061	0.098614
0.380931549	1.823941	0.100623
0.382527771	1.818909	0.102663
0.384123932	1.813971	0.104715
0.385720093	1.809128	0.106759
0.387316223	1.804377	0.108775
0.388912384	1.799715	0.110745
0.390508484	1.795132	0.112651
0.392104553	1.790621	0.114476
0.393700623	1.78617	0.116203
0.395296692	1.781767	0.117818
0.396892731	1.777396	0.119306
0.398488708	1.773044	0.120654
0.400084717	1.768693	0.121847
0.401680695	1.764324	0.122875
0.403276642	1.759917	0.123726
0.404872559	1.755453	0.124388
0.406468445	1.750906	0.124852
0.408064331	1.746253	0.125108
0.409660156	1.741467	0.125146
0.411256012	1.736516	0.12496
0.412851807	1.731372	0.124541
0.414447571	1.725997	0.123882
0.416043304	1.720352	0.122978
0.417639069	1.714393	0.121823
0.419234772	1.708063	0.12041
0.420830414	1.70129	0.118737
0.422426086	1.693972	0.11684
0.424021729	1.68604	0.114796
0.425617279	1.677455	0.11268
0.427212891	1.668186	0.110565
0.428808411	1.658214	0.10852
0.4304039	1.647526	0.106614
0.43199942	1.636113	0.104912
0.433594818	1.62397	0.103481
0.435190277	1.611097	0.102384
0.436785645	1.597496	0.101688
0.438381012	1.583172	0.101457
0.439976379	1.568135	0.101757
0.441571625	1.552396	0.102655
0.443166931	1.535968	0.104219
0.444762146	1.518872	0.10652
0.446357361	1.50113	0.10963
0.447952545	1.482768	0.113624
0.449547668	1.46382	0.11858
0.451142761	1.444324	0.124581
0.452737854	1.424327	0.13171
0.454332855	1.403886	0.140056
0.455927887	1.383066	0.149709
0.457522858	1.361948	0.160763
0.459117767	1.340625	0.173312
0.460712708	1.319211	0.187452
0.462307556	1.297837	0.203273
0.463902405	1.276662	0.220861
0.465497162	1.255865	0.240289
0.467091888	1.235658	0.261616
0.468686615	1.216282	0.284873
0.470281311	1.198013	0.310059
0.471875916	1.181176	0.337112
0.47347052	1.166094	0.365835
0.475065094	1.152994	0.395969
0.476659607	1.142044	0.427227
0.478254089	1.133349	0.45931
0.479848541	1.126956	0.491917
0.481442932	1.122859	0.524755
0.483037292	1.121002	0.557553
0.484631592	1.121291	0.590065
0.486225891	1.123602	0.622081
0.487820129	1.127792	0.653427
0.489414307	1.133707	0.68396
0.491008453	1.141187	0.713572
0.492602539	1.150079	0.742182
0.494196625	1.160231	0.769734
0.495790619	1.171502	0.79619
0.497384613	1.18376	0.821531
0.498978516	1.196885	0.845749
0.500572418	1.210765	0.868846
0.50216626	1.225299	0.890833
0.503760071	1.240395	0.911726
0.505353821	1.255972	0.931544
0.50694751	1.271953	0.950311
0.508541168	1.28827	0.968052
0.510134766	1.304862	0.984793
0.511728333	1.321673	1.00056
0.513321838	1.338651	1.015381
0.514915283	1.355749	1.029284
0.516508667	1.372925	1.042294
0.518102051	1.390138	1.054439
0.519695435	1.407353	1.065745
0.521288696	1.424532	1.076236
0.522881897	1.441645	1.085939
0.524475037	1.45866	1.094877
0.526068176	1.475547	1.103075
0.527661255	1.492278	1.110556
0.529254211	1.508825	1.117344
0.530847168	1.525158	1.123462
0.532440063	1.54125	1.128934
0.534032959	1.557069	1.133786
0.535625732	1.572578	1.138046
0.537218506	1.587743	1.141763
0.538811157	1.602548	1.144989
0.540403809	1.616989	1.147771
0.541996399	1.631068	1.150146
0.543588928	1.644784	1.15215
0.545181396	1.658143	1.153815
0.546773804	1.671148	1.155168
0.54836615	1.683805	1.156237
0.549958496	1.69612	1.157046
0.55155072	1.708098	1.157616
0.553142944	1.719748	1.157968
0.554735046	1.731076	1.158121
0.556327148	1.742089	1.158092
0.557919128	1.752793	1.157899
0.559511108	1.763197	1.157556
0.561102966	1.773307	1.157077
0.562694824	1.783132	1.156477
0.564286621	1.792677	1.155767
0.565878296	1.80195	1.154959
0.567470032	1.810958	1.154065
0.569061646	1.819708	1.153094
0.570653137	1.828207	1.152057
0.572244629	1.836463	1.150963
0.57383606	1.844482	1.14982
0.575427368	1.85227	1.148636
0.577018677	1.859836	1.14742
0.578609863	1.867184	1.146179
0.58020105	1.874322	1.144919
0.581792114	1.881257	1.143647
0.583383179	1.887994	1.142369
0.584974121	1.894541	1.141092
0.586565063	1.900904	1.13982
0.588155884	1.907089	1.138558
0.589746704	1.913103	1.137312
0.591337341	1.918951	1.136087
0.592927979	1.92464	1.134886
0.594518555	1.930176	1.133713
0.59610907	1.935566	1.132574
0.597699524	1.940814	1.13147
0.599289917	1.945929	1.130406
0.600880188	1.950915	1.129384
0.602470398	1.95578	1.128408
0.604060608	1.960528	1.127481
0.605650696	1.965166	1.126604
0.607240723	1.969701	1.12578
0.608830688	1.974139	1.125011
0.610420532	1.978486	1.1243
0.612010376	1.982748	1.123646
0.613600098	1.986932	1.123053
0.615189758	1.991045	1.122521
0.616779358	1.995094	1.12205
0.618368896	1.999087	1.121642
0.619958374	2.003032	1.121295
0.621547729	2.006938	1.121007
0.623137024	2.010813	1.120771
0.624726257	2.014659	1.120584
0.62631543	2.018482	1.12044
0.62790448	2.022283	1.120336
0.62949353	2.026064	1.120267
0.631082458	2.029829	1.120231
0.632671265	2.033579	1.120225
0.634260132	2.037314	1.120245
0.635848755	2.041037	1.120288
0.637437378	2.044749	1.120353
0.639026001	2.04845	1.120437
0.640614441	2.052142	1.120538
0.64220282	2.055825	1.120653
0.643791138	2.0595	1.12078
0.645379395	2.063167	1.120917
0.64696759	2.066826	1.121064
0.648555664	2.070479	1.121217
0.650143677	2.074125	1.121376
0.651731567	2.077765	1.121538
0.653319458	2.081398	1.121703
0.654907166	2.085025	1.121868
0.656494873	2.088645	1.122034
0.658082458	2.09226	1.122198
0.659669983	2.095869	1.122359
0.661257446	2.099471	1.122516
0.662844788	2.103067	1.122668
0.664432007	2.106656	1.122815
0.666019165	2.110239	1.122954
0.667606323	2.113815	1.123086
0.669193298	2.117384	1.12321
0.670780273	2.120946	1.123324
0.672367065	2.1245	1.123428
0.673953857	2.128046	1.123521
0.675540527	2.131584	1.123603
0.677127136	2.135114	1.123672
0.678713623	2.138635	1.12373
0.680300049	2.142148	1.123773
0.681886353	2.14565	1.123803
0.683472656	2.149143	1.123819
0.685058777	2.152627	1.123821
0.686644897	2.156099	1.123807
0.688230835	2.159561	1.123778
0.689816772	2.163012	1.123733
0.691402527	2.166451	1.123672
0.69298822	2.169878	1.123594
0.694573853	2.173292	1.123499
0.696159424	2.176694	1.123388
0.697744873	2.180083	1.123259
0.6993302	2.183458	1.123113
0.700915466	2.186819	1.122949
0.70250061	2.190165	1.122767
0.704085693	2.193496	1.122568
0.705670715	2.196812	1.12235
0.707255554	2.200112	1.122113
0.708840393	2.203396	1.121859
0.71042511	2.206663	1.121586
0.712009705	2.209913	1.121295
0.713594177	2.213144	1.120985
0.715178589	2.216358	1.120656
0.716762939	2.219553	1.120309
0.718347168	2.222728	1.119943
0.719931335	2.225884	1.119559
0.721515381	2.22902	1.119157
0.723099304	2.232134	1.118736
0.724683167	2.235227	1.118297
0.726266907	2.238298	1.117839
0.727850525	2.241346	1.117363
0.729434143	2.244371	1.11687
0.731017578	2.247372	1.116358
0.732600952	2.250348	1.11583
0.734184204	2.253298	1.115284
0.735767334	2.256222	1.114721
0.737350403	2.259118	1.114141
0.73893335	2.261985	1.113547
0.740516235	2.264822	1.112939
0.742098999	2.26763	1.112318
0.743681641	2.270408	1.111686
0.745264221	2.273156	1.111043
0.746846619	2.275874	1.11039
0.748429016	2.278563	1.109729
0.75001123	2.281221	1.10906
0.751593384	2.28385	1.108384
0.753175415	2.286449	1.107701
0.754757385	2.289019	1.107013
0.756339233	2.29156	1.106321
0.757920959	2.294072	1.105624
0.759502563	2.296555	1.104923
0.761084106	2.29901	1.10422
0.762665527	2.301436	1.103514
0.764246826	2.303835	1.102807
0.765828003	2.306206	1.102099
0.767409119	2.308549	1.101389
0.768990112	2.310866	1.10068
0.770570984	2.313156	1.099972
0.772151733	2.31542	1.099264
0.773732483	2.317657	1.098557
0.775312988	2.319869	1.097852
0.776893433	2.322056	1.097149
0.778473755	2.324217	1.096449
0.780054077	2.326354	1.095752
0.781634155	2.328467	1.095058
0.783214172	2.330555	1.094368
0.784794067	2.33262	1.093681
0.786373901	2.334661	1.092999
0.787953552	2.33668	1.092322
0.789533081	2.338675	1.09165
0.79111261	2.340649	1.090983
0.792691956	2.342601	1.090321
0.794271118	2.344531	1.089666
0.795850281	2.34644	1.089016
0.797429321	2.348328	1.088373
0.799008179	2.350195	1.087737
0.800586975	2.352043	1.087107
0.802165649	2.353871	1.086484
0.803744202	2.355679	1.085869
0.805322632	2.357468	1.085261
0.80690094	2.359239	1.084661
0.808479126	2.360991	1.084068
0.810057251	2.362725	1.083484
0.811635193	2.364441	1.082907
0.813213013	2.36614	1.08234
0.814790771	2.367822	1.08178
0.816368408	2.369488	1.08123
0.817945923	2.371136	1.080688
0.819523254	2.37277	1.080155
0.821100586	2.374387	1.079631
0.822677734	2.375989	1.079116
0.8242547	2.377576	1.078611
0.825831665	2.379149	1.078115
0.827408386	2.380707	1.077629
0.828985046	2.382252	1.077152
0.830561646	2.383782	1.076686
0.832138062	2.3853	1.076228
0.833714355	2.386804	1.075781
0.835290527	2.388296	1.075344
0.836866577	2.389776	1.074917
0.838442505	2.391243	1.0745
0.840018372	2.392699	1.074093
0.841594055	2.394144	1.073696
0.843169617	2.395577	1.07331
0.844744995	2.397	1.072934
0.846320313	2.398412	1.072568
0.847895508	2.399815	1.072213
0.849470581	2.401207	1.071868
0.851045593	2.40259	1.071533
0.852620422	2.403964	1.071209
0.854195007	2.405329	1.070896
0.855769653	2.406686	1.070593
0.857344055	2.408034	1.070301
0.858918335	2.409375	1.070019
0.860492554	2.410708	1.069748
0.862066589	2.412034	1.069487
0.863640503	2.413352	1.069237
0.865214355	2.414664	1.068998
0.866787964	2.41597	1.068769
0.868361511	2.41727	1.06855
0.869934937	2.418564	1.068342
0.871508179	2.419852	1.068145
0.87308136	2.421135	1.067957
0.874654419	2.422414	1.067781
0.876227356	2.423688	1.067615
0.87780011	2.424958	1.067459
0.879372681	2.426223	1.067313
0.88094519	2.427486	1.067178
0.882517456	2.428745	1.067052
0.884089722	2.430001	1.066937
0.885661804	2.431254	1.066832
0.887233765	2.432505	1.066738
0.888805664	2.433754	1.066653
0.890377319	2.435002	1.066578
0.891948914	2.436248	1.066512
0.893520325	2.437493	1.066457
0.895091614	2.438737	1.066411
0.896662781	2.439981	1.066375
0.898233765	2.441226	1.066348
0.899804688	2.44247	1.066331
0.901375366	2.443716	1.066323
0.902945984	2.444963	1.066323
0.904516479	2.446212	1.066333
0.906086792	2.447463	1.066352
0.907656921	2.448716	1.066379
0.909227051	2.449974	1.066414
0.910796997	2.451235	1.066456
0.912366699	2.4525	1.066506
0.91393634	2.45377	1.066561
0.915505859	2.455044	1.066622
0.917075195	2.456322	1.066689
0.918644409	2.457605	1.06676
0.920213501	2.458893	1.066836
0.92178241	2.460186	1.066916
0.923351257	2.461483	1.067
0.924919922	2.462785	1.067087
0.926488403	2.464092	1.067177
0.928056763	2.465404	1.067269
0.929625	2.466721	1.067364
0.931193054	2.468042	1.06746
0.932760925	2.469368	1.067558
0.934328796	2.470699	1.067658
0.935896362	2.472034	1.067758
0.937463867	2.473374	1.067858
0.93903125	2.474719	1.06796
0.94059845	2.476068	1.068061
0.942165527	2.477422	1.068162
0.943732422	2.47878	1.068262
0.945299194	2.480142	1.068362
0.946865845	2.481508	1.068461
0.948432312	2.482878	1.068559
0.949998657	2.484252	1.068655
0.951564819	2.485631	1.06875
0.953130859	2.487013	1.068843
0.954696777	2.488398	1.068934
0.956262512	2.489787	1.069023
0.957828125	2.49118	1.069109
0.959393555	2.492576	1.069192
0.960958801	2.493975	1.069273
0.962523926	2.495378	1.069351
0.964088989	2.496783	1.069426
0.965653809	2.498192	1.069497
0.967218445	2.499603	1.069565
0.96878302	2.501017	1.06963
0.970347351	2.502433	1.06969
0.971911621	2.503852	1.069747
0.973475708	2.505273	1.0698
0.975039551	2.506696	1.069848
0.976603333	2.508122	1.069892
0.978166992	2.509549	1.069932
0.979730347	2.510978	1.069967
0.981293762	2.512409	1.069998
0.982856812	2.513842	1.070024
0.9844198	2.515276	1.070045
0.985982727	2.516711	1.070061
0.98754541	2.518147	1.070072
0.98910791	2.519585	1.070077
0.990670288	2.521024	1.070078
0.992232544	2.522463	1.070073
0.993794556	2.523903	1.070063
0.995356445	2.525344	1.070047
0.996918152	2.526785	1.070025
0.998479797	2.528226	1.069998
1.011449524	2.540201	1.069546
1.014837524	2.543324	1.069358
1.018225952	2.546444	1.06914
1.021614868	2.549558	1.068892
1.025004272	2.552666	1.068613
1.028394165	2.555767	1.068303
1.031784424	2.558859	1.067963
1.035175293	2.561941	1.06759
1.03856665	2.565012	1.067186
1.041958252	2.568071	1.06675
1.045350586	2.571116	1.066282
1.048743286	2.574147	1.065781
1.052136475	2.577163	1.065249
1.055530029	2.580161	1.064684
1.058924194	2.583142	1.064087
1.062318848	2.586104	1.063458
1.065713867	2.589045	1.062796
1.069109497	2.591966	1.062103
1.072505493	2.594865	1.061377
1.075901978	2.59774	1.06062
1.07929895	2.600591	1.059831
1.082696411	2.603416	1.05901
1.08609436	2.606215	1.058158
1.089492676	2.608987	1.057274
1.092891602	2.611731	1.05636
1.096290894	2.614444	1.055415
1.099690674	2.617127	1.054439
1.103091064	2.619779	1.053433
1.106491821	2.622398	1.052398
1.109893066	2.624984	1.051332
1.113294678	2.627534	1.050238
1.116697021	2.630049	1.049114
1.120099609	2.632527	1.047962
1.123502686	2.634968	1.046781
1.126906372	2.637369	1.045573
1.130310425	2.63973	1.044337
1.133714966	2.64205	1.043075
1.137119995	2.644327	1.041785
1.140525513	2.646562	1.04047
1.143931396	2.648751	1.039129
1.147337891	2.650894	1.037763
1.150744873	2.652991	1.036373
1.154152222	2.655038	1.034958
1.157560059	2.657036	1.03352
1.160968506	2.658983	1.032059
1.164377197	2.660876	1.030576
1.167786499	2.662715	1.029071
1.171196289	2.664497	1.027546
1.174606567	2.666221	1.026
1.178017212	2.667884	1.024436
1.181428467	2.669483	1.022855
1.184840088	2.671015	1.021259
1.188252197	2.672478	1.019653
1.191664795	2.673871	1.01804
1.195077881	2.675194	1.016424
1.198491455	2.676446	1.014807
1.201905518	2.677628	1.013194
1.205319946	2.678741	1.011586
1.208734863	2.679784	1.009987
1.212150269	2.680759	1.008398
1.215566162	2.681665	1.006823
1.218982666	2.682505	1.005263
1.222399536	2.683277	1.003721
1.225816772	2.683985	1.002198
1.229234619	2.684627	1.000697
1.232652954	2.685206	0.999219
1.236071655	2.685722	0.997767
1.239490845	2.686177	0.996342
1.242910522	2.686572	0.994945
1.246330811	2.686907	0.993579
1.249751343	2.687184	0.992244
1.253172485	2.687403	0.990942
1.256593994	2.687568	0.989675
1.260016113	2.687677	0.988444
1.263438721	2.687733	0.987249
1.266861572	2.687737	0.986093
1.270285156	2.68769	0.984976
1.273709106	2.687593	0.983899
1.277133545	2.687448	0.982863
1.28055835	2.687256	0.98187
1.283983765	2.687017	0.98092
1.287409668	2.686734	0.980014
1.290835938	2.686408	0.979154
1.294262695	2.686039	0.978339
1.297689941	2.685629	0.97757
1.301117676	2.685179	0.976849
1.304545898	2.684691	0.976176
1.307974609	2.684166	0.975551
1.311403687	2.683605	0.974976
1.314833374	2.683009	0.97445
1.318263428	2.682379	0.973975
1.321694092	2.681717	0.97355
1.325125122	2.681025	0.973177
1.328556519	2.680302	0.972856
1.331988525	2.679551	0.972587
1.335421021	2.678772	0.97237
1.338853882	2.677968	0.972207
1.342287354	2.677138	0.972097
1.345721191	2.676285	0.97204
1.349155518	2.675409	0.972038
1.352590454	2.674511	0.972089
1.356025635	2.673594	0.972196
1.359461426	2.672657	0.972356
1.362897705	2.671703	0.972572
1.366334351	2.670732	0.972843
1.369771606	2.669746	0.973169
1.373209229	2.668745	0.97355
1.376647339	2.667731	0.973987
1.380085938	2.666704	0.97448
1.383525024	2.665667	0.975028
1.3869646	2.66462	0.975631
1.390404541	2.663564	0.976291
1.393844971	2.662501	0.977006
1.397285889	2.661431	0.977777
1.400727417	2.660355	0.978604
1.404169312	2.659276	0.979486
1.407611694	2.658193	0.980424
1.411054443	2.657107	0.981418
1.414497803	2.656021	0.982467
1.41794165	2.654934	0.983571
1.421385864	2.653849	0.984731
1.424830688	2.652765	0.985945
1.428275757	2.651685	0.987215
1.431721436	2.650608	0.98854
1.435167725	2.649537	0.989919
1.438614258	2.648471	0.991352
1.442061279	2.647413	0.99284
1.445508911	2.646363	0.994382
1.448956909	2.645322	0.995977
1.452405518	2.64429	0.997626
1.45585437	2.64327	0.999328
1.459303955	2.642262	1.001083
1.462753784	2.641266	1.00289
1.466204224	2.640285	1.00475
1.469655029	2.639318	1.006662
1.473106323	2.638367	1.008626
1.476558228	2.637432	1.010641
1.480010498	2.636515	1.012706
1.483463135	2.635617	1.014823
1.486916382	2.634737	1.016989
1.490370117	2.633878	1.019206
1.493824341	2.63304	1.021472
1.497278931	2.632224	1.023786
1.500734131	2.63143	1.02615
1.504189697	2.63066	1.028561
1.507645752	2.629915	1.03102
1.511102173	2.629195	1.033526
1.514559204	2.628501	1.036079
1.518016602	2.627834	1.038679
1.521474609	2.627194	1.041324
1.524932983	2.626583	1.044014
1.528391846	2.626002	1.046749
1.531851196	2.62545	1.049529
1.535311035	2.624929	1.052352
1.53877124	2.62444	1.055218
1.542232056	2.623984	1.058127
1.545693237	2.62356	1.061078
1.549155029	2.62317	1.06407
1.552617188	2.622815	1.067104
1.556079834	2.622495	1.070177
1.559542969	2.622211	1.073291
1.563006592	2.621964	1.076443
1.566470581	2.621754	1.079634
1.569935181	2.621583	1.082863
1.573400146	2.621449	1.086129
1.576865601	2.621356	1.089432
1.580331543	2.621303	1.092771
1.583797974	2.62129	1.096146
1.587264893	2.621318	1.099555
1.590732178	2.621389	1.102998
1.594199951	2.621502	1.106474
1.597668335	2.621659	1.109983
1.601137085	2.62186	1.113524
1.604606323	2.622104	1.117097
1.60807605	2.622395	1.1207
1.611546143	2.62273	1.124333
1.615016846	2.623113	1.127995
1.618488037	2.623542	1.131685
1.621959595	2.624019	1.135404
1.625431641	2.624543	1.139149
1.628904175	2.625117	1.142921
1.632377197	2.62574	1.146719
1.635850708	2.626412	1.150541
1.639324585	2.627136	1.154387
1.642799072	2.62791	1.158256
1.646274048	2.628736	1.162148
1.649749268	2.629614	1.166062
1.65322522	2.630545	1.169997
1.656701416	2.631529	1.173951
1.660178101	2.632568	1.177925
1.663655518	2.633662	1.181918
1.667133179	2.634811	1.185928
1.670611328	2.636016	1.189954
1.674090088	2.637278	1.193997
1.677569092	2.638598	1.198054
1.681048584	2.639977	1.202125
1.684528687	2.641415	1.206209

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: —

MgH2 (Magnesium hydride): all datasets

Palm et al. 2018: n,k 0.250–1.68 µm n,k 0.25–1.685 µm default

About MgH2 (Magnesium hydride)

Magnesium hydride (MgH₂) is a solid compound consisting of magnesium and hydrogen. It is known primarily for its potential use as a hydrogen storage material. When heated, MgH₂ decomposes to release hydrogen gas, making it of interest for hydrogen storage and production technologies. Optically, MgH₂ is generally not transparent and doesn't have widespread use in conventional optical applications. However, research into its optical properties might become relevant in the context of its potential use in energy storage and conversion systems.

More about MgH2 (Magnesium hydride) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/MgH2/nk/Palm.yml
ID: ds_41fcb681bbf0
API: /v1/datasets/ds_41fcb681bbf0

Plot