Optical constants

Refractive index of As2Se3 (Arsenic triselenide)

Joseph et al. 2021: 400-nm film; n,k 0.246–1.69 µm

Data
tabulated nk
Range
0.2458–1.688 µm
Points
677
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.2458–1.688 µm
Refractive index n
3.17577
Extinction coefficient k
0.207198
Permittivity ε1
10.0426
Permittivity ε2
1.31602
Absorption coefficient α
44311.1 cm⁻¹
Penetration depth δ = λ/(2πk)
451.354 nm
Abbe number Vd
—
Chromatic dispersion dn/dλ
-2.925 µm⁻¹
Group index ng
4.8945
Group velocity dispersion
— fs²/mm
Dispersion parameter D
— ps/(nm·km)
Photon energy
2.11001 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

# As2Se3 (Arsenic triselenide): Joseph et al. 2021: 400-nm film; n,k 0.246–1.69 µm
as2se3 = ls.fetch_refractiveindex("main", "As2Se3", "Joseph-400nm", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(as2se3.range_nm)  # (245.8, 1688) nm
eps = as2se3.eps([633])  # 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

400 nm film on glass substrate.

Conditions

film thickness
400e-9
substrate
glass

References

S. Joseph, S. Sarkar, J. Joseph. Grating-coupled surface plasmon-polariton sensing at a flat metal–analyte interface in a hybrid-configuration. ACS Appl. Mater. Interfaces, 12, 46519-46529 (2020) (Numerical data kindly provided by Prof. Joby Joseph)
  • doi:10.1021/acsami.0c12525 Grating-Coupled Surface Plasmon-Polariton Sensing at a Flat Metal–Analyte Interface in a Hybrid-Configuration, ACS Applied Materials & Interfaces (2020)

Cite

Shereena Joseph, Swagato Sarkar and Joby Joseph. Grating-Coupled Surface Plasmon-Polariton Sensing at a Flat Metal–Analyte Interface in a Hybrid-Configuration. ACS Applied Materials & Interfaces, 12, 46519-46529 (2020), doi:10.1021/acsami.0c12525; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

677 rows as published
As2Se3 (Arsenic triselenide), Joseph et al. 2021: 400-nm film; n,k 0.246–1.69 µm: n and k versus wavelength
λ (µm)nk
0.24581.288611.03512
0.24741.290651.05312
0.2491.292921.0709
0.25061.295541.08859
0.25221.298591.1063
0.25381.302181.12411
0.25541.30641.14212
0.2571.311311.16039
0.25861.316981.17898
0.26011.323481.19793
0.26171.330851.21729
0.26331.339121.23706
0.26491.348221.25711
0.26651.358081.27727
0.26811.368621.2974
0.26971.379771.31739
0.27131.391461.33712
0.27291.403631.35649
0.27441.416221.37543
0.2761.429161.39386
0.27761.442421.41171
0.27921.455931.42893
0.28081.469661.44549
0.28241.483611.4614
0.2841.497811.47677
0.28561.512291.49168
0.28711.52711.50622
0.28871.542241.52048
0.29031.557751.5345
0.29191.573641.54837
0.29351.589931.56213
0.29511.606631.57584
0.29671.623751.58955
0.29831.64131.60329
0.29991.659281.61712
0.30141.677691.63105
0.3031.696511.64508
0.30461.715721.6591
0.30621.735281.67303
0.30781.755151.68677
0.30941.77531.70024
0.3111.795711.71339
0.31261.816341.72615
0.31421.837181.73847
0.31571.85821.75029
0.31731.879391.76157
0.31891.900731.77229
0.32051.92221.78239
0.32211.943791.79186
0.32371.965491.80067
0.32531.987291.80879
0.32692.009181.81622
0.32852.031171.82296
0.332.053281.82904
0.33162.07551.83446
0.33322.097851.83926
0.33482.120331.84344
0.33642.142951.84701
0.3382.165721.85001
0.33962.188641.85244
0.34122.211721.85432
0.34282.234961.85567
0.34432.258381.8565
0.34592.281961.85683
0.34752.305721.85668
0.34912.329651.85607
0.35072.353771.85499
0.35232.378071.85349
0.35392.402561.85156
0.35552.427221.84924
0.35712.451961.84652
0.35862.47671.84344
0.36022.501351.84001
0.36182.525831.83623
0.36342.550071.83213
0.3652.574011.82769
0.36662.597591.82295
0.36822.620741.81789
0.36982.643431.81252
0.37142.665591.80684
0.37292.687181.80086
0.37452.708171.79457
0.37612.728521.78797
0.37772.748191.78106
0.37932.767161.77384
0.38092.785381.76631
0.38252.802841.75846
0.38412.819521.75028
0.38572.835381.74178
0.38722.850411.73294
0.38882.86461.72377
0.39042.877991.71426
0.3922.890681.70446
0.39362.902771.69437
0.39522.914331.68401
0.39682.925451.67342
0.39842.936221.66261
0.42.946691.6516
0.40152.956951.64042
0.40312.967051.62908
0.40472.977061.61762
0.40632.987041.60605
0.40792.997051.59439
0.40953.007121.58267
0.41113.017331.57091
0.41273.027711.55913
0.41433.03831.54735
0.41583.049151.5356
0.41743.060311.52389
0.4193.071791.51225
0.42063.083631.5007
0.42223.095881.48925
0.42383.108541.47794
0.42543.121661.46677
0.4273.135261.45577
0.42853.149351.44496
0.43013.163951.43436
0.43173.179021.42396
0.43333.194461.41374
0.43493.21021.40369
0.43653.226141.39378
0.43813.242221.384
0.43973.258371.37433
0.44133.274511.36474
0.44283.290571.35522
0.44443.306511.34575
0.4463.322261.3363
0.44763.337781.32687
0.44923.3531.31742
0.45083.367891.30793
0.45243.38241.2984
0.4543.396491.2888
0.45553.410111.27911
0.45713.423251.26932
0.45873.435851.2594
0.46033.44791.24933
0.46193.459351.23911
0.46353.470191.22872
0.46513.480391.21812
0.46673.489911.20733
0.46823.498751.1963
0.46983.506871.18503
0.47143.514271.1735
0.4733.520911.1617
0.47463.526781.14961
0.47623.531861.13721
0.47783.536141.12448
0.47943.539611.11142
0.48093.542241.098
0.48253.544051.08423
0.48413.545091.07013
0.48573.545391.05571
0.48733.545011.04101
0.48893.543981.02603
0.49053.542341.01081
0.49213.540130.99535
0.49363.53740.97969
0.49523.534160.96383
0.49683.530460.9478
0.49843.526330.93162
0.53.52180.9153
0.50163.516890.89886
0.50323.511650.88232
0.50483.506090.8657
0.50633.500240.84901
0.50793.494130.83227
0.50953.487780.8155
0.51113.481220.79872
0.51273.474470.78193
0.51433.467550.76516
0.51593.460480.74842
0.51743.453280.73173
0.5193.445980.71511
0.52063.438580.69856
0.52223.431120.68211
0.52383.42360.66578
0.52543.416040.64956
0.5273.408470.6335
0.52863.400880.61758
0.53013.393310.60184
0.53173.385760.58629
0.53333.378250.57093
0.53493.370780.5558
0.53653.363380.54089
0.53813.356050.52622
0.53973.348810.51182
0.54123.341660.49769
0.54283.334610.48384
0.54443.327680.47029
0.5463.320880.45705
0.54763.31420.44413
0.54923.307650.43152
0.55083.301210.41922
0.55233.294890.40722
0.55393.288680.39552
0.55553.282570.3841
0.55713.276560.37298
0.55873.270650.36213
0.56033.264830.35155
0.56193.25910.34125
0.56343.253460.3312
0.5653.24790.32142
0.56663.242410.31189
0.56823.2370.30261
0.56983.231670.29357
0.57143.22640.28477
0.5733.22120.2762
0.57453.216060.26787
0.57613.210980.25975
0.57773.205960.25186
0.57933.2010.24417
0.58093.196090.2367
0.58253.191230.22944
0.5843.186420.22237
0.58563.181660.2155
0.58723.176940.20882
0.58883.172260.20233
0.59043.167620.19602
0.5923.163030.18989
0.59363.158470.18394
0.59513.153940.17815
0.59673.149450.17254
0.59833.144990.16708
0.59993.140570.16179
0.60153.136170.15665
0.60313.13180.15166
0.60463.127460.14682
0.60623.123140.14212
0.60783.118850.13757
0.60943.114580.13315
0.6113.110330.12886
0.61263.10610.12471
0.61413.10190.12068
0.61573.097710.11678
0.61733.093540.113
0.61893.089390.10933
0.62053.085250.10578
0.62213.081130.10234
0.62363.077020.09901
0.62523.072930.09579
0.62683.068860.09267
0.62843.064790.08965
0.633.060740.08672
0.63163.056690.08389
0.63313.052660.08116
0.63473.048640.07851
0.63633.044640.07595
0.63793.040640.07348
0.63953.036660.07108
0.6413.03270.06878
0.64263.028750.06654
0.64423.024810.06439
0.64583.02090.06231
0.64743.0170.0603
0.6493.013120.05837
0.65053.009250.0565
0.65213.005410.0547
0.65373.001580.05296
0.65532.997780.05129
0.65692.9940.04967
0.65852.990240.04812
0.662.986490.04663
0.66162.982780.04519
0.66322.979080.04381
0.66482.975410.04248
0.66642.971760.0412
0.66792.968140.03997
0.66952.964540.03879
0.67112.960970.03766
0.67272.957420.03657
0.67432.95390.03553
0.67582.95040.03453
0.67742.946940.03357
0.6792.94350.03265
0.68062.940080.03177
0.68222.93670.03093
0.68372.933350.03012
0.68532.930020.02935
0.68692.926720.02861
0.68852.923460.02791
0.69012.920220.02723
0.69162.917010.02659
0.69322.913840.02597
0.69482.910690.02538
0.69642.907580.02482
0.6982.90450.02429
0.69952.901450.02378
0.70112.898430.02329
0.70272.895440.02283
0.70432.892490.02238
0.70592.889570.02196
0.70742.886680.02156
0.7092.883830.02118
0.71062.881010.02082
0.71222.878230.02047
0.71382.875470.02014
0.71532.872760.01982
0.71692.870070.01952
0.71852.867420.01923
0.72012.864810.01896
0.72172.862230.0187
0.72322.859690.01845
0.72482.857180.0182
0.72642.854710.01797
0.7282.852270.01775
0.72952.849860.01754
0.73112.84750.01733
0.73272.845170.01714
0.73432.842870.01695
0.73592.840610.01676
0.73742.838390.01658
0.7392.83620.0164
0.74062.834050.01623
0.74222.831930.01606
0.74372.829850.01589
0.74532.827810.01573
0.74692.82580.01557
0.74852.823830.01541
0.752.82190.01525
0.75162.820.01509
0.75322.818140.01493
0.75482.816310.01477
0.75642.814520.01461
0.75792.812750.01446
0.75952.811020.0143
0.76112.809320.01415
0.76272.807650.01399
0.76422.806010.01384
0.76582.804410.01368
0.76742.802820.01353
0.7692.801270.01338
0.77052.799750.01323
0.77212.798250.01308
0.77372.796780.01294
0.77532.795340.01279
0.77682.793920.01265
0.77842.792530.0125
0.782.791160.01236
0.78162.789810.01221
0.78312.788490.01207
0.78472.787190.01193
0.78632.785920.01179
0.78792.784660.01165
0.78942.783430.01152
0.7912.782220.01138
0.79262.781020.01125
0.79422.779850.01111
0.79572.77870.01098
0.79732.777570.01085
0.79892.776450.01072
0.80052.775360.01059
0.8022.774280.01046
0.80362.773220.01033
0.80522.772170.0102
0.80682.771150.01008
0.80832.770140.00995
0.80992.769140.00983
0.81152.768160.00971
0.8132.76720.00959
0.81462.766250.00947
0.81622.765310.00935
0.81782.764390.00923
0.81932.763480.00912
0.82092.762590.009
0.82252.761710.00889
0.82412.760840.00878
0.82562.759980.00866
0.82722.759140.00855
0.82882.758310.00844
0.83032.757490.00834
0.83192.756680.00823
0.83352.755880.00813
0.83512.755090.00802
0.83662.754310.00792
0.83822.753540.00782
0.83982.752780.00771
0.84132.752030.00762
0.84292.751290.00752
0.84452.750560.00742
0.84612.749840.00732
0.84762.749120.00723
0.84922.748410.00713
0.85082.747710.00704
0.85232.747020.00695
0.85392.746340.00686
0.85552.745660.00677
0.8572.744990.00668
0.85862.744330.0066
0.86022.743670.00651
0.86182.743020.00643
0.86332.742380.00634
0.86492.741740.00626
0.86652.74110.00618
0.8682.740480.0061
0.86962.739850.00602
0.87122.739240.00594
0.87272.738620.00587
0.87432.738010.00579
0.87592.737410.00572
0.87742.736810.00564
0.8792.736220.00557
0.88062.735630.0055
0.88222.735040.00543
0.88372.734450.00536
0.88532.733870.0053
0.88692.73330.00523
0.88842.732720.00516
0.892.732150.0051
0.89162.731580.00504
0.89312.731020.00498
0.89472.730460.00491
0.89632.729890.00485
0.89782.729340.0048
0.89942.728780.00474
0.9012.728230.00468
0.90252.727670.00463
0.90412.727120.00457
0.90572.726570.00452
0.90722.726020.00447
0.90882.725480.00442
0.91042.724930.00437
0.91192.724390.00432
0.91352.723850.00427
0.91512.72330.00422
0.91662.722760.00418
0.91822.722220.00413
0.91972.721680.00409
0.92132.721140.00405
0.92292.72060.004
0.92442.720070.00396
0.9262.719530.00392
0.92762.718990.00389
0.92912.718460.00385
0.93072.717920.00381
0.93232.717390.00378
0.93382.716850.00374
0.93542.716320.00371
0.9372.715790.00367
0.93852.715260.00364
0.94012.714730.00361
0.94162.71420.00358
0.94322.713680.00355
0.94482.713150.00352
0.94632.712630.00349
0.94792.712110.00347
0.94952.711580.00344
0.9512.711060.00342
0.95262.710550.00339
0.95422.710030.00337
0.95572.709510.00334
0.95732.7090.00332
0.95882.708490.0033
0.96042.707970.00328
0.9622.707470.00326
0.96352.706960.00324
0.96512.706450.00323
0.96662.705950.00321
0.96822.705440.00319
0.96982.704940.00317
0.97132.704440.00316
0.97292.703950.00314
0.97442.703450.00313
0.9762.702960.00312
0.97762.702470.00311
0.97912.701980.00309
0.98072.701490.00308
0.98222.7010.00307
0.98382.700520.00306
0.98542.700040.00305
0.98692.699560.00304
0.98852.699080.00303
0.992.69860.00303
0.99162.698130.00302
0.99322.697660.00301
0.99472.697190.00301
0.99632.696720.003
0.99782.696250.003
0.99942.695790.003
1.01042.692580.00298
1.01372.691620.00299
1.01712.690670.00299
1.02052.689730.003
1.02392.68880.00301
1.02722.687880.00302
1.03062.686970.00303
1.0342.686080.00305
1.03732.685190.00306
1.04072.684310.00308
1.04412.683450.00311
1.04752.68260.00313
1.05082.681760.00315
1.05422.680930.00318
1.05762.680110.00321
1.0612.67930.00324
1.06432.67850.00327
1.06772.677720.00331
1.07112.676950.00334
1.07452.676190.00338
1.07782.675440.00342
1.08122.67470.00346
1.08462.673970.0035
1.0882.673260.00354
1.09142.672560.00359
1.09472.671870.00363
1.09812.671190.00368
1.10152.670520.00373
1.10492.669870.00378
1.10832.669220.00383
1.11172.668590.00388
1.1152.667970.00394
1.11842.667360.00399
1.12182.666760.00404
1.12522.666180.0041
1.12862.665610.00416
1.1322.665040.00422
1.13542.664490.00428
1.13872.663960.00434
1.14212.663430.0044
1.14552.662910.00446
1.14892.662410.00452
1.15232.661920.00459
1.15572.661440.00465
1.15912.660970.00472
1.16252.660510.00479
1.16592.660060.00485
1.16932.659630.00492
1.17272.65920.00499
1.17612.658790.00506
1.17942.658380.00513
1.18282.657990.0052
1.18622.657610.00527
1.18962.657240.00534
1.1932.656880.00541
1.19642.656540.00549
1.19982.65620.00556
1.20322.655870.00563
1.20662.655560.00571
1.212.655250.00578
1.21342.654950.00586
1.21682.654660.00594
1.22022.654380.00601
1.22362.654110.00609
1.2272.653850.00617
1.23042.653590.00624
1.23382.653350.00632
1.23722.653110.0064
1.24072.652880.00648
1.24412.652660.00656
1.24752.652450.00664
1.25092.652240.00671
1.25432.652040.00679
1.25772.651850.00688
1.26112.651660.00696
1.26452.651480.00703
1.26792.651310.00712
1.27132.651150.0072
1.27472.650980.00728
1.27812.650830.00736
1.28162.650680.00744
1.2852.650540.00752
1.28842.650410.0076
1.29182.650280.00768
1.29522.650150.00777
1.29862.650030.00785
1.3022.649920.00793
1.30552.649810.00801
1.30892.64970.00809
1.31232.64960.00817
1.31572.64950.00826
1.31912.649410.00834
1.32252.649330.00842
1.3262.649250.0085
1.32942.649170.00858
1.33282.649090.00867
1.33622.649020.00875
1.33962.648960.00883
1.34312.64890.00891
1.34652.648840.00899
1.34992.648780.00908
1.35332.648730.00916
1.35682.648680.00924
1.36022.648640.00932
1.36362.64860.0094
1.3672.648560.00949
1.37052.648530.00957
1.37392.648490.00965
1.37732.648470.00973
1.38072.648440.00981
1.38422.648420.00989
1.38762.64840.00997
1.3912.648380.01005
1.39452.648360.01013
1.39792.648350.01021
1.40132.648340.0103
1.40472.648330.01038
1.40822.648330.01046
1.41162.648320.01053
1.4152.648320.01061
1.41852.648320.0107
1.42192.648330.01078
1.42532.648330.01085
1.42882.648340.01093
1.43222.648350.01101
1.43572.648360.01109
1.43912.648370.01117
1.44252.648380.01125
1.4462.64840.01133
1.44942.648420.01141
1.45282.648430.01148
1.45632.648450.01156
1.45972.648480.01164
1.46322.64850.01172
1.46662.648520.01179
1.472.648550.01187
1.47352.648580.01195
1.47692.64860.01202
1.48042.648630.0121
1.48382.648660.01218
1.48732.64870.01225
1.49072.648730.01233
1.49422.648760.0124
1.49762.64880.01248
1.50112.648830.01255
1.50452.648870.01263
1.50792.648910.0127
1.51142.648950.01278
1.51482.648990.01285
1.51832.649030.01293
1.52172.649070.013
1.52522.649110.01307
1.52862.649150.01315
1.53212.649190.01322
1.53562.649240.01329
1.5392.649280.01336
1.54252.649330.01344
1.54592.649370.01351
1.54942.649420.01358
1.55282.649460.01365
1.55632.649510.01372
1.55972.649560.01379
1.56322.64960.01386
1.56662.649650.01393
1.57012.64970.014
1.57362.649750.01407
1.5772.64980.01414
1.58052.649850.01421
1.58392.64990.01428
1.58742.649950.01435
1.59092.650.01442
1.59432.650050.01449
1.59782.65010.01456
1.60132.650150.01463
1.60472.65020.01469
1.60822.650250.01476
1.61162.65030.01483
1.61512.650350.0149
1.61862.65040.01496
1.6222.650450.01503
1.62552.65050.0151
1.6292.650560.01516
1.63242.650610.01523
1.63592.650660.01529
1.63942.650710.01536
1.64292.650760.01542
1.64632.650810.01549
1.64982.650860.01555
1.65332.650910.01562
1.65672.650960.01568
1.66022.651020.01574
1.66372.651070.01581
1.66722.651120.01587
1.67062.651170.01593
1.67412.651220.01599
1.67762.651270.01606
1.68112.651320.01612
1.68452.651370.01618
1.6882.651420.01624

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
—