Optical constants

Refractive index of (C5H8O2)n (Poly(methyl methacrylate), PMMA)

Tsuda et al. 2018: Lorentz-Drude model; n,k 2.50–18.2 µm

Data
tabulated nk
Range
2.5–18.18 µm
Points
1569
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 2.5–18.18 µm
Refractive index n
1.40962
Extinction coefficient k
0.07016
Permittivity ε1
1.98211
Permittivity ε2
0.197798
Absorption coefficient α
1308.1 cm⁻¹
Penetration depth δ = λ/(2πk)
15289.4 nm
Abbe number Vd
—
Chromatic dispersion dn/dλ
0.95 µm⁻¹
Group index ng
-4.99338
Group velocity dispersion
— fs²/mm
Dispersion parameter D
— ps/(nm·km)
Photon energy
0.183953 eV

ε = (n + ik)², α = 4πk/λ, ng = 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

# (C5H8O2)n (Poly(methyl methacrylate), PMMA): Tsuda et al. 2018: Lorentz-Drude model; n,k 2.50–18.2 µm
mat = ls.fetch_refractiveindex("organic", "poly_methyl_methacrylate", "Tsuda-LD", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mat.range_nm)  # (2500, 18180) nm
eps = mat.eps([6740])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

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

MicroChem PMMA resist with a molecular weight of 950,000; Baked at 100 °C for 10 min on a hot plate; Lorentz-Drude model parameters provided in Table 1 of manuscript.

References

S. Tsuda, S. Yamaguchi, Y. Kanamori, H. Yugami. Spectral and angular shaping of infrared radiation in a polymer resonator with molecular vibrational modes. Opt. Express 26, 6899-6915 (2018)
[Calculation script (Python)]
  • doi:10.1364/oe.26.006899 Spectral and angular shaping of infrared radiation in a polymer resonator with molecular vibrational modes, Optics Express (2018)

Cite

Shinichiro Tsuda, Shuhei Yamaguchi, Yoshiaki Kanamori and Hiroo Yugami. Spectral and angular shaping of infrared radiation in a polymer resonator with molecular vibrational modes. Optics Express, 26, 6899 (2018), doi:10.1364/oe.26.006899; [Calculation script (Python)]; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

1569 rows as published
(C5H8O2)n (Poly(methyl methacrylate), PMMA), Tsuda et al. 2018: Lorentz-Drude model; n,k 2.50–18.2 µm: n and k versus wavelength
λ (µm)nk
2.51.465594.461e-05
2.511.465544.57e-05
2.521.465484.682e-05
2.531.465434.799e-05
2.541.465374.919e-05
2.551.465325.044e-05
2.561.465265.174e-05
2.571.46525.309e-05
2.581.465145.449e-05
2.591.465085.595e-05
2.61.465025.747e-05
2.611.464965.906e-05
2.621.464896.072e-05
2.631.464836.246e-05
2.641.464766.428e-05
2.651.46476.619e-05
2.661.464636.82e-05
2.671.464567.033e-05
2.681.464497.257e-05
2.691.464427.496e-05
2.71.464347.749e-05
2.711.464278.02e-05
2.721.464198.311e-05
2.731.464118.624e-05
2.741.464038.965e-05
2.751.463959.338e-05
2.761.463869.749e-05
2.771.463770.0001021
2.781.463680.0001073
2.791.463590.0001133
2.81.463490.0001203
2.811.463380.0001287
2.821.463280.0001392
2.831.463160.0001527
2.841.463030.0001709
2.851.462890.0001972
2.861.462740.0002378
2.871.462550.0003072
2.881.462340.0004406
2.891.462120.0007288
2.91.462160.001303
2.911.462910.001522
2.921.463220.0009397
2.931.463040.0005619
2.941.46280.0003952
2.951.462590.0003179
2.961.462390.0002797
2.971.462210.0002606
2.981.462040.000252
2.991.461870.0002499
3.01.46170.000252
3.011.461530.0002573
3.021.461350.0002652
3.031.461180.0002752
3.041.460990.0002872
3.051.46080.0003012
3.061.460610.0003172
3.071.46040.0003354
3.081.460180.000356
3.091.459960.0003792
3.11.459720.0004053
3.111.459470.0004348
3.121.45920.0004682
3.131.458920.0005062
3.141.458610.0005495
3.151.458280.0005993
3.161.457930.0006569
3.171.457540.0007238
3.181.457130.0008024
3.191.456660.0008955
3.21.456160.001007
3.211.455590.001142
3.221.454950.001309
3.231.454230.001517
3.241.45340.001783
3.251.452450.002131
3.261.451320.002599
3.271.449980.003252
3.281.448360.004203
3.291.44640.00566
3.31.444080.008032
3.311.441670.0121
3.321.440680.01902
3.331.445370.0277
3.341.45610.02944
3.351.461160.02318
3.361.45880.01876
3.371.453220.01991
3.381.448910.03105
3.391.467830.04579
3.41.481790.02955
3.411.479280.02141
3.421.478260.01904
3.431.479030.01695
3.441.479680.01404
3.451.47940.01103
3.461.47840.008541
3.471.477090.006694
3.481.475690.005394
3.491.474270.004547
3.51.472810.004195
3.511.47140.004865
3.521.472710.006624
3.531.474020.004067
3.541.472890.002598
3.551.471880.001994
3.561.471080.001659
3.571.470420.001434
3.581.469850.001267
3.591.469350.001136
3.61.468890.001029
3.611.468480.0009402
3.621.468110.000865
3.631.467760.0008005
3.641.467440.0007446
3.651.467130.0006959
3.661.466850.0006531
3.671.466570.0006152
3.681.466320.0005816
3.691.466070.0005515
3.71.465840.0005246
3.711.465610.0005004
3.721.46540.0004785
3.731.465190.0004587
3.741.464990.0004407
3.751.46480.0004244
3.761.464610.0004095
3.771.464420.0003959
3.781.464240.0003834
3.791.464070.0003719
3.81.46390.0003614
3.811.463730.0003518
3.821.463570.0003429
3.831.463410.0003347
3.841.463250.0003272
3.851.463090.0003202
3.861.462940.0003138
3.871.462790.0003079
3.881.462640.0003024
3.891.462490.0002973
3.91.462350.0002927
3.911.46220.0002884
3.921.462060.0002844
3.931.461920.0002808
3.941.461780.0002774
3.951.461640.0002743
3.961.46150.0002715
3.971.461360.0002689
3.981.461220.0002666
3.991.461090.0002644
4.01.460950.0002625
4.011.460810.0002607
4.021.460680.0002592
4.031.460540.0002578
4.041.460410.0002565
4.051.460270.0002555
4.061.460140.0002545
4.071.460.0002537
4.081.459870.0002531
4.091.459730.0002526
4.11.45960.0002522
4.111.459460.0002519
4.121.459330.0002517
4.131.459190.0002517
4.141.459050.0002517
4.151.458920.0002519
4.161.458780.0002521
4.171.458640.0002525
4.181.458510.000253
4.191.458370.0002535
4.21.458230.0002541
4.211.458090.0002549
4.221.457950.0002557
4.231.457810.0002566
4.241.457670.0002576
4.251.457520.0002586
4.261.457380.0002598
4.271.457240.000261
4.281.457090.0002623
4.291.456950.0002637
4.31.45680.0002652
4.311.456650.0002667
4.321.456510.0002683
4.331.456360.00027
4.341.456210.0002718
4.351.456050.0002736
4.361.45590.0002756
4.371.455750.0002776
4.381.455590.0002796
4.391.455440.0002818
4.41.455280.000284
4.411.455120.0002863
4.421.454960.0002887
4.431.45480.0002911
4.441.454630.0002937
4.451.454470.0002963
4.461.45430.000299
4.471.454140.0003018
4.481.453970.0003046
4.491.453790.0003076
4.51.453620.0003106
4.511.453450.0003137
4.521.453270.0003169
4.531.453090.0003202
4.541.452910.0003235
4.551.452730.000327
4.561.452550.0003306
4.571.452360.0003342
4.581.452170.0003379
4.591.451980.0003418
4.61.451790.0003457
4.611.45160.0003498
4.621.45140.0003539
4.631.45120.0003582
4.641.4510.0003626
4.651.45080.0003671
4.661.450590.0003717
4.671.450380.0003764
4.681.450170.0003812
4.691.449960.0003862
4.71.449740.0003913
4.711.449520.0003966
4.721.449290.0004019
4.731.449070.0004074
4.741.448840.0004131
4.751.448610.0004189
4.761.448370.0004249
4.771.448130.000431
4.781.447890.0004373
4.791.447640.0004438
4.81.447390.0004504
4.811.447140.0004573
4.821.446880.0004643
4.831.446620.0004715
4.841.446350.0004789
4.851.446080.0004866
4.861.44580.0004944
4.871.445520.0005025
4.881.445240.0005108
4.891.444950.0005194
4.91.444650.0005282
4.911.444350.0005373
4.921.444050.0005467
4.931.443740.0005564
4.941.443420.0005664
4.951.44310.0005767
4.961.442770.0005873
4.971.442440.0005983
4.981.442090.0006097
4.991.441750.0006214
5.01.441390.0006336
5.011.441030.0006461
5.021.440660.0006591
5.031.440280.0006726
5.041.439890.0006866
5.051.43950.0007011
5.061.439090.0007161
5.071.438680.0007317
5.081.438260.0007479
5.091.437820.0007647
5.11.437380.0007822
5.111.436930.0008004
5.121.436460.0008194
5.131.435980.0008391
5.141.435490.0008597
5.151.434990.0008813
5.161.434470.0009037
5.171.433940.0009272
5.181.43340.0009518
5.191.432840.0009776
5.21.432260.001005
5.211.431660.001033
5.221.431050.001063
5.231.430420.001094
5.241.429770.001127
5.251.429090.001161
5.261.42840.001198
5.271.427680.001237
5.281.426930.001277
5.291.426160.001321
5.31.425360.001366
5.311.424530.001415
5.321.423670.001467
5.331.422780.001522
5.341.421840.00158
5.351.420870.001643
5.361.419860.00171
5.371.418810.001782
5.381.41770.001859
5.391.416540.001942
5.41.415330.002032
5.411.414060.002128
5.421.412720.002233
5.431.411320.002347
5.441.409830.002471
5.451.408270.002606
5.461.406610.002754
5.471.404850.002917
5.481.402980.003096
5.491.400990.003294
5.51.398860.003513
5.511.396590.003758
5.521.394150.004032
5.531.391520.00434
5.541.388680.004687
5.551.38560.005082
5.561.382250.005532
5.571.37860.00605
5.581.374580.006649
5.591.370160.007348
5.61.365250.00817
5.611.359780.009145
5.621.353640.01031
5.631.346690.01173
5.641.338760.01348
5.651.329640.01566
5.661.319010.01842
5.671.30650.02201
5.681.291540.02678
5.691.273360.0333
5.71.250860.04254
5.711.222410.05622
5.721.185610.07761
5.731.137180.1135
5.741.074260.1792
5.751.005730.3094
5.761.002480.5529
5.771.230810.8412
5.781.691090.8495
5.791.919450.5262
5.81.889140.2875
5.811.816720.1699
5.821.755730.1101
5.831.70930.0767
5.841.673970.05643
5.851.646530.04329
5.861.624740.03431
5.871.607070.02792
5.881.592470.02322
5.891.580210.01966
5.91.569770.0169
5.911.560770.01472
5.921.552930.01297
5.931.546030.01155
5.941.539910.01038
5.951.534440.009396
5.961.529520.008572
5.971.525060.007872
5.981.5210.007274
5.991.517280.006759
6.01.513860.006313
6.011.51070.005925
6.021.507770.005586
6.031.505030.005288
6.041.502480.005026
6.051.500080.004795
6.061.497830.004591
6.071.49570.00441
6.081.493680.00425
6.091.491760.004107
6.11.489940.003981
6.111.48820.003869
6.121.486540.00377
6.131.484940.003683
6.141.483410.003606
6.151.481930.003539
6.161.48050.003481
6.171.479120.003431
6.181.477780.003389
6.191.476480.003354
6.21.475220.003325
6.211.473980.003303
6.221.472780.003287
6.231.47160.003276
6.241.470440.003272
6.251.469310.003272
6.261.468190.003278
6.271.467090.003289
6.281.4660.003306
6.291.464930.003327
6.31.463860.003354
6.311.462810.003386
6.321.461750.003423
6.331.460710.003466
6.341.459660.003515
6.351.458620.003569
6.361.457580.00363
6.371.456530.003698
6.381.455480.003772
6.391.454420.003854
6.41.453360.003944
6.411.452280.004042
6.421.451190.00415
6.431.450090.004267
6.441.448960.004396
6.451.447820.004537
6.461.446660.004692
6.471.445470.004861
6.481.444250.005047
6.491.4430.005252
6.51.441710.005478
6.511.440390.005728
6.521.439010.006005
6.531.437590.006314
6.541.436110.006659
6.551.434560.007048
6.561.432950.007486
6.571.431250.007984
6.581.429470.008552
6.591.427580.009207
6.61.425580.009966
6.611.423440.01086
6.621.421170.01191
6.631.418740.01316
6.641.416130.01468
6.651.413340.01653
6.661.410360.01883
6.671.407210.02173
6.681.403980.02542
6.691.400830.03016
6.71.398120.03625
6.711.396540.04393
6.721.397160.05306
6.731.401340.0626
6.741.409620.07016
6.751.420340.07299
6.761.429890.07043
6.771.435520.06471
6.781.436960.0587
6.791.435380.05416
6.81.43210.05171
6.811.428060.05138
6.821.423930.05309
6.831.420230.05673
6.841.417510.06221
6.851.416440.06931
6.861.417780.07752
6.871.422160.08582
6.881.429690.09269
6.891.439440.09652
6.91.449450.0965
6.911.457560.09324
6.921.462430.08857
6.931.463970.08487
6.941.463520.08447
6.951.464450.08917
6.961.472970.0973
6.971.491910.09842
6.981.508910.08469
6.991.513890.06608
7.01.511030.05138
7.011.505580.04136
7.021.499770.03459
7.031.494280.0299
7.041.489260.02655
7.051.484670.02411
7.061.480440.02232
7.071.47650.02104
7.081.472790.02015
7.091.469250.01961
7.11.465850.01939
7.111.462530.0195
7.121.459280.01996
7.131.456080.02084
7.141.452960.02224
7.151.449990.0243
7.161.447370.02719
7.171.44550.03107
7.181.445060.0359
7.191.446940.04101
7.21.451540.04483
7.211.457660.04552
7.221.46290.04284
7.231.465680.03839
7.241.466110.03394
7.251.465060.03034
7.261.463310.02771
7.271.461330.02593
7.281.459370.02479
7.291.457570.0241
7.31.455970.02372
7.311.45460.02352
7.321.453450.02341
7.331.452480.0233
7.341.451650.02313
7.351.45090.02286
7.361.450180.02247
7.371.449430.02198
7.381.44860.0214
7.391.447680.02076
7.41.446640.02009
7.411.445480.01943
7.421.444210.01879
7.431.442840.0182
7.441.441380.01767
7.451.439840.01721
7.461.438240.01681
7.471.436580.01649
7.481.434870.01624
7.491.433120.01606
7.51.431320.01594
7.511.429490.01589
7.521.427620.01589
7.531.425710.01596
7.541.423760.01609
7.551.421770.01628
7.561.419730.01653
7.571.417650.01684
7.581.415520.01721
7.591.413330.01765
7.61.411080.01816
7.611.408770.01874
7.621.406390.01941
7.631.403930.02017
7.641.401390.02103
7.651.398760.02199
7.661.396030.02309
7.671.393210.02432
7.681.390270.02572
7.691.387230.0273
7.71.384060.0291
7.711.380780.03115
7.721.377370.03349
7.731.373860.03618
7.741.370250.03928
7.751.366570.04285
7.761.362870.04699
7.771.359230.05179
7.781.355750.05735
7.791.35260.06378
7.81.350030.07115
7.811.348350.07949
7.821.347970.08871
7.831.349350.09854
7.841.352910.1085
7.851.358880.1176
7.861.367080.1251
7.871.37680.13
7.881.386890.1316
7.891.396030.1303
7.91.403170.1267
7.911.407750.1218
7.921.409740.1167
7.931.409440.1123
7.941.407340.1091
7.951.403980.1075
7.961.399870.1077
7.971.395530.11
7.981.391490.1142
7.991.388370.1206
8.01.386890.1289
8.011.38790.1388
8.021.392230.1494
8.031.400440.1594
8.041.412440.167
8.051.427140.1706
8.061.442590.1692
8.071.456550.1628
8.081.46730.1529
8.091.474120.1411
8.11.477170.129
8.111.477080.1176
8.121.474640.1076
8.131.470540.09913
8.141.465350.09217
8.151.459440.08664
8.161.453090.08237
8.171.446460.07923
8.181.439660.0771
8.191.432760.07588
8.21.425770.0755
8.211.418730.07592
8.221.411640.07712
8.231.404490.0791
8.241.39730.0819
8.251.390090.08557
8.261.382870.09019
8.271.375710.09586
8.281.36870.1027
8.291.361980.1109
8.31.355750.1206
8.311.350340.1319
8.321.346180.145
8.331.343860.1599
8.341.34410.1764
8.351.347720.194
8.361.355460.2117
8.371.367740.228
8.381.384310.2414
8.391.404030.2499
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15.311.519690.001122
15.321.519650.001117
15.331.51960.001113
15.341.519560.001108
15.351.519510.001104
15.361.519470.0011
15.371.519420.001096
15.381.519380.001091
15.391.519330.001087
15.41.519290.001083
15.411.519240.001079
15.421.51920.001075
15.431.519160.001071
15.441.519110.001067
15.451.519070.001063
15.461.519030.001059
15.471.518990.001055
15.481.518940.001051
15.491.51890.001048
15.51.518860.001044
15.511.518820.00104
15.521.518780.001036
15.531.518740.001033
15.541.51870.001029
15.551.518660.001026
15.561.518620.001022
15.571.518580.001018
15.581.518540.001015
15.591.51850.001011
15.61.518460.001008
15.611.518420.001005
15.621.518380.001001
15.631.518340.0009978
15.641.51830.0009945
15.651.518260.0009911
15.661.518220.0009879
15.671.518190.0009846
15.681.518150.0009814
15.691.518110.0009782
15.71.518070.000975
15.711.518030.0009718
15.721.5180.0009687
15.731.517960.0009656
15.741.517920.0009625
15.751.517890.0009595
15.761.517850.0009565
15.771.517810.0009534
15.781.517780.0009505
15.791.517740.0009475
15.81.517710.0009446
15.811.517670.0009417
15.821.517640.0009388
15.831.51760.0009359
15.841.517570.000933
15.851.517530.0009302
15.861.51750.0009274
15.871.517460.0009246
15.881.517430.0009218
15.891.517390.0009191
15.91.517360.0009164
15.911.517330.0009137
15.921.517290.000911
15.931.517260.0009083
15.941.517230.0009057
15.951.517190.000903
15.961.517160.0009004
15.971.517130.0008978
15.981.517090.0008952
15.991.517060.0008927
16.01.517030.0008901
16.011.5170.0008876
16.021.516960.0008851
16.031.516930.0008826
16.041.51690.0008802
16.051.516870.0008777
16.061.516840.0008753
16.071.51680.0008728
16.081.516770.0008704
16.091.516740.000868
16.11.516710.0008657
16.111.516680.0008633
16.121.516650.000861
16.131.516620.0008586
16.141.516590.0008563
16.151.516560.000854
16.161.516530.0008518
16.171.51650.0008495
16.181.516470.0008472
16.191.516440.000845
16.21.516410.0008428
16.211.516380.0008406
16.221.516350.0008384
16.231.516320.0008362
16.241.516290.000834
16.251.516260.0008319
16.261.516230.0008297
16.271.51620.0008276
16.281.516170.0008255
16.291.516150.0008234
16.31.516120.0008213
16.311.516090.0008192
16.321.516060.0008171
16.331.516030.0008151
16.341.5160.000813
16.351.515980.000811
16.361.515950.000809
16.371.515920.000807
16.381.515890.000805
16.391.515870.000803
16.41.515840.0008011
16.411.515810.0007991
16.421.515780.0007971
16.431.515760.0007952
16.441.515730.0007933
16.451.51570.0007914
16.461.515680.0007895
16.471.515650.0007876
16.481.515620.0007857
16.491.51560.0007838
16.51.515570.000782
16.511.515540.0007801
16.521.515520.0007783
16.531.515490.0007765
16.541.515470.0007747
16.551.515440.0007728
16.561.515410.000771
16.571.515390.0007693
16.581.515360.0007675
16.591.515340.0007657
16.61.515310.000764
16.611.515290.0007622
16.621.515260.0007605
16.631.515240.0007587
16.641.515210.000757
16.651.515190.0007553
16.661.515160.0007536
16.671.515140.0007519
16.681.515110.0007502
16.691.515090.0007486
16.71.515060.0007469
16.711.515040.0007452
16.721.515020.0007436
16.731.514990.0007419
16.741.514970.0007403
16.751.514940.0007387
16.761.514920.0007371
16.771.51490.0007355
16.781.514870.0007339
16.791.514850.0007323
16.81.514820.0007307
16.811.51480.0007291
16.821.514780.0007276
16.831.514750.000726
16.841.514730.0007245
16.851.514710.0007229
16.861.514690.0007214
16.871.514660.0007199
16.881.514640.0007183
16.891.514620.0007168
16.91.514590.0007153
16.911.514570.0007138
16.921.514550.0007123
16.931.514530.0007108
16.941.51450.0007094
16.951.514480.0007079
16.961.514460.0007064
16.971.514440.000705
16.981.514420.0007035
16.991.514390.0007021
17.01.514370.0007007
17.011.514350.0006992
17.021.514330.0006978
17.031.514310.0006964
17.041.514280.000695
17.051.514260.0006936
17.061.514240.0006922
17.071.514220.0006908
17.081.51420.0006894
17.091.514180.0006881
17.11.514160.0006867
17.111.514140.0006853
17.121.514110.000684
17.131.514090.0006826
17.141.514070.0006813
17.151.514050.00068
17.161.514030.0006786
17.171.514010.0006773
17.181.513990.000676
17.191.513970.0006747
17.21.513950.0006734
17.211.513930.0006721
17.221.513910.0006708
17.231.513890.0006695
17.241.513870.0006682
17.251.513850.0006669
17.261.513830.0006657
17.271.513810.0006644
17.281.513790.0006631
17.291.513770.0006619
17.31.513750.0006606
17.311.513730.0006594
17.321.513710.0006582
17.331.513690.0006569
17.341.513670.0006557
17.351.513650.0006545
17.361.513630.0006533
17.371.513610.000652
17.381.513590.0006508
17.391.513570.0006496
17.41.513550.0006484
17.411.513530.0006473
17.421.513510.0006461
17.431.51350.0006449
17.441.513480.0006437
17.451.513460.0006425
17.461.513440.0006414
17.471.513420.0006402
17.481.51340.0006391
17.491.513380.0006379
17.51.513360.0006368
17.511.513350.0006356
17.521.513330.0006345
17.531.513310.0006334
17.541.513290.0006322
17.551.513270.0006311
17.561.513250.00063
17.571.513240.0006289
17.581.513220.0006278
17.591.51320.0006267
17.61.513180.0006256
17.611.513160.0006245
17.621.513140.0006234
17.631.513130.0006223
17.641.513110.0006212
17.651.513090.0006201
17.661.513070.000619
17.671.513060.000618
17.681.513040.0006169
17.691.513020.0006159
17.71.5130.0006148
17.711.512990.0006137
17.721.512970.0006127
17.731.512950.0006116
17.741.512930.0006106
17.751.512920.0006096
17.761.51290.0006085
17.771.512880.0006075
17.781.512870.0006065
17.791.512850.0006055
17.81.512830.0006044
17.811.512810.0006034
17.821.51280.0006024
17.831.512780.0006014
17.841.512760.0006004
17.851.512750.0005994
17.861.512730.0005984
17.871.512710.0005974
17.881.51270.0005965
17.891.512680.0005955
17.91.512660.0005945
17.911.512650.0005935
17.921.512630.0005926
17.931.512620.0005916
17.941.51260.0005906
17.951.512580.0005897
17.961.512570.0005887
17.971.512550.0005878
17.981.512530.0005868
17.991.512520.0005859
18.01.51250.0005849
18.011.512490.000584
18.021.512470.000583
18.031.512450.0005821
18.041.512440.0005812
18.051.512420.0005803
18.061.512410.0005793
18.071.512390.0005784
18.081.512380.0005775
18.091.512360.0005766
18.11.512340.0005757
18.111.512330.0005748
18.121.512310.0005739
18.131.51230.000573
18.141.512280.0005721
18.151.512270.0005712
18.161.512250.0005703
18.171.512240.0005694
18.181.512220.0005685

Optical transmission calculator

Free-standing sample in vacuum, normal incidence
Method
Transmittance T
—
Reflectance R
—

Fresnel reflection calculator

Direction
Rp
—
Rs
—
R = (Rp+Rs)/2
—
Phase φp
—
Phase φs
—
Brewster angle θB
—
Critical angle θC
—