Optical constants

Refractive index of (C6H11NO)n (Poly(N-isopropylacrylamide), PNIPAM)

Brasse et al. 2018: n,k 0.246–1.69 µm

Data
tabulated nk
Range
0.2456–1.688 µm
Points
676
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.2456–1.688 µm
Refractive index n
1.50311
Extinction coefficient k
0.00240153
Permittivity ε1
2.25934
Permittivity ε2
0.00721955
Absorption coefficient α
513.591 cm⁻¹
Penetration depth δ = λ/(2πk)
38941.5 nm
Abbe number Vd
—
Chromatic dispersion dn/dλ
-0.0471995 µm⁻¹
Group index ng
1.53085
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

# (C6H11NO)n (Poly(N-isopropylacrylamide), PNIPAM): Brasse et al. 2018: n,k 0.246–1.69 µm
mat = ls.fetch_refractiveindex("organic", "poly_N-isopropylacrylamide", "Brasse", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mat.range_nm)  # (245.581, 1688.43) nm
eps = mat.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.

References

Y. Brasse, M. B. Müller, M. Karg, C. Kuttner, T. A. F. König, A. Fery. Magnetic and electric resonances in particle-to-film-coupled functional nanostructures. ACS Appl. Mater. Interfaces 10, 3133-3141 (2018) (Numerical data kindly provided by Tobias König)
  • doi:10.1021/acsami.7b16941 Magnetic and Electric Resonances in Particle-to-Film-Coupled Functional Nanostructures, ACS Applied Materials & Interfaces (2018)

Cite

Yannic Brasse et al.. Magnetic and Electric Resonances in Particle-to-Film-Coupled Functional Nanostructures. ACS Applied Materials & Interfaces, 10, 3133-3141 (2018), doi:10.1021/acsami.7b16941; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

676 rows as published
(C6H11NO)n (Poly(N-isopropylacrylamide), PNIPAM), Brasse et al. 2018: n,k 0.246–1.69 µm: n and k versus wavelength
λ (µm)nk
0.2455811.6022640.009484
0.2471811.6001910.009341
0.2487811.5981740.009201
0.2503811.596210.009065
0.2519811.59430.008933
0.2535811.5924390.008804
0.2551821.5906270.008679
0.2567821.5888630.008557
0.2583821.5871440.008438
0.2599821.5854690.008322
0.2615821.5838360.00821
0.2631821.5822450.0081
0.2647831.5806930.007993
0.2663831.579180.007888
0.2679831.5777050.007787
0.2695831.5762650.007687
0.2711831.5748610.00759
0.2727831.573490.007496
0.2743841.5721530.007404
0.2759841.5708470.007313
0.2775841.5695720.007225
0.2791841.5683270.00714
0.2807841.5671110.007056
0.2823841.5659230.006974
0.2839841.5647620.006893
0.2855841.5636280.006815
0.2871841.5625190.006738
0.2887841.5614360.006664
0.2903841.5603770.00659
0.2919841.5593410.006519
0.2935841.5583280.006448
0.2951841.5573370.00638
0.2967841.5563680.006313
0.2983841.555420.006247
0.2999841.5544920.006183
0.3015841.5535840.00612
0.3031841.5526950.006058
0.3047841.5518250.005997
0.3063841.5509730.005938
0.3079841.5501390.00588
0.3095841.5493220.005823
0.3111841.5485210.005767
0.3127831.5477370.005713
0.3143831.5469690.005659
0.3159831.5462170.005607
0.3175831.5454790.005555
0.3191831.5447560.005504
0.3207821.5440480.005455
0.3223821.5433530.005406
0.3239821.5426720.005358
0.3255811.5420040.005311
0.3271811.5413490.005265
0.328781.5407070.00522
0.330381.5400760.005176
0.331981.5394580.005132
0.3335791.5388510.00509
0.3351791.5382560.005048
0.3367781.5376720.005006
0.3383781.5370990.004966
0.3399771.5365360.004926
0.3415761.5359830.004887
0.3431761.535440.004848
0.3447751.5349080.00481
0.3463741.5343840.004773
0.3479741.5338710.004737
0.3495731.5333660.004701
0.3511721.532870.004665
0.3527711.5323830.004631
0.354371.5319040.004596
0.3559691.5314340.004563
0.3575681.5309720.00453
0.3591681.5305170.004497
0.3607671.5300710.004465
0.3623651.5296320.004434
0.3639641.52920.004403
0.3655631.5287760.004372
0.3671621.5283590.004342
0.3687611.5279490.004312
0.370361.5275450.004283
0.3719581.5271480.004254
0.3735571.5267580.004226
0.3751561.5263740.004198
0.3767541.5259960.004171
0.3783531.5256240.004144
0.3799521.5252590.004117
0.381551.5248990.004091
0.3831481.5245440.004065
0.3847471.5241960.00404
0.3863451.5238520.004015
0.3879441.5235140.00399
0.3895421.5231820.003966
0.391141.5228540.003941
0.3927381.5225320.003918
0.3943361.5222140.003894
0.3959351.5219010.003871
0.3975331.5215930.003849
0.3991311.521290.003826
0.4007291.5209910.003804
0.4023261.5206970.003782
0.4039241.5204070.003761
0.4055221.5201210.00374
0.407121.519840.003719
0.4087181.5195620.003698
0.4103151.5192890.003678
0.4119131.5190190.003658
0.413511.5187540.003638
0.4151081.5184920.003618
0.4167051.5182340.003599
0.4183031.517980.00358
0.41991.5177290.003561
0.4214971.5174820.003543
0.4230951.5172380.003524
0.4246921.5169970.003506
0.4262891.516760.003488
0.4278861.5165260.003471
0.4294831.5162960.003453
0.431081.5160680.003436
0.4326771.5158440.003419
0.4342741.5156230.003402
0.435871.5154050.003386
0.4374671.5151890.003369
0.4390641.5149770.003353
0.440661.5147670.003337
0.4422571.514560.003321
0.4438531.5143560.003306
0.445451.5141550.00329
0.4470461.5139560.003275
0.4486421.5137590.00326
0.4502381.5135660.003245
0.4518341.5133740.00323
0.4534311.5131860.003216
0.4550271.5129990.003201
0.4566221.5128150.003187
0.4582181.5126340.003173
0.4598141.5124540.003159
0.461411.5122770.003145
0.4630061.5121020.003132
0.4646011.511930.003118
0.4661971.5117590.003105
0.4677921.5115910.003092
0.4693881.5114240.003079
0.4709831.511260.003066
0.4725781.5110980.003053
0.4741731.5109370.003041
0.4757681.5107790.003028
0.4773631.5106220.003016
0.4789581.5104680.003004
0.4805531.5103150.002992
0.4821481.5101640.00298
0.4837431.5100150.002968
0.4853371.5098670.002957
0.4869321.5097220.002945
0.4885261.5095780.002934
0.4901211.5094350.002922
0.4917151.5092950.002911
0.4933091.5091560.0029
0.4949041.5090180.002889
0.4964981.5088820.002878
0.4980921.5087480.002868
0.4996861.5086150.002857
0.5012791.5084840.002846
0.5028731.5083540.002836
0.5044671.5082260.002826
0.5060611.5080990.002815
0.5076541.5079740.002805
0.5092481.507850.002795
0.5108411.5077270.002785
0.5124341.5076060.002776
0.5140271.5074860.002766
0.515621.5073670.002756
0.5172141.507250.002747
0.5188061.5071340.002737
0.5203991.5070190.002728
0.5219921.5069050.002719
0.5235851.5067930.00271
0.5251771.5066820.002701
0.526771.5065720.002692
0.5283621.5064630.002683
0.5299541.5063550.002674
0.5315471.5062490.002665
0.5331391.5061430.002656
0.5347311.5060390.002648
0.5363231.5059360.002639
0.5379151.5058340.002631
0.5395061.5057330.002623
0.5410981.5056330.002614
0.542691.5055340.002606
0.5442811.5054360.002598
0.5458721.5053390.00259
0.5474641.5052430.002582
0.5490551.5051480.002574
0.5506461.5050540.002566
0.5522371.5049610.002558
0.5538281.5048680.002551
0.5554191.5047770.002543
0.5570091.5046870.002536
0.55861.5045970.002528
0.560191.5045090.002521
0.5617811.5044210.002513
0.5633711.5043340.002506
0.5649611.5042480.002499
0.5665511.5041630.002491
0.5681411.5040790.002484
0.5697311.5039960.002477
0.5713211.5039130.00247
0.572911.5038310.002463
0.57451.503750.002456
0.5760891.503670.00245
0.5776791.503590.002443
0.5792681.5035110.002436
0.5808571.5034330.00243
0.5824461.5033560.002423
0.5840351.5032790.002416
0.5856241.5032040.00241
0.5872121.5031290.002403
0.5888011.5030540.002397
0.5903891.502980.002391
0.5919781.5029070.002384
0.5935661.5028350.002378
0.5951541.5027630.002372
0.5967421.5026920.002366
0.598331.5026220.00236
0.5999181.5025520.002354
0.6015051.5024830.002348
0.6030931.5024140.002342
0.6046811.5023470.002336
0.6062681.5022790.00233
0.6078551.5022130.002324
0.6094421.5021470.002318
0.6110291.5020810.002313
0.6126161.5020160.002307
0.6142031.5019520.002301
0.6157891.5018880.002296
0.6173761.5018250.00229
0.6189621.5017620.002285
0.6205481.50170.002279
0.6221351.5016390.002274
0.6237211.5015780.002269
0.6253061.5015170.002263
0.6268921.5014570.002258
0.6284781.5013980.002253
0.6300631.5013390.002247
0.6316491.5012810.002242
0.6332341.5012230.002237
0.6348191.5011650.002232
0.6364041.5011080.002227
0.6379891.5010520.002222
0.6395741.5009960.002217
0.6411591.500940.002212
0.6427431.5008850.002207
0.6443271.5008310.002202
0.6459121.5007770.002197
0.6474961.5007230.002192
0.649081.500670.002188
0.6506641.5006170.002183
0.6522471.5005650.002178
0.6538311.5005130.002174
0.6554141.5004610.002169
0.6569981.500410.002164
0.6585811.500360.00216
0.6601641.5003090.002155
0.6617471.500260.002151
0.663331.500210.002146
0.6649121.5001610.002142
0.6664951.5001130.002137
0.6680771.5000640.002133
0.669661.5000170.002128
0.6712421.4999690.002124
0.6728241.4999220.00212
0.6744051.4998750.002116
0.6759871.4998290.002111
0.6775691.4997830.002107
0.679151.4997370.002103
0.6807311.4996920.002099
0.6823131.4996470.002095
0.6838931.4996030.00209
0.6854741.4995580.002086
0.6870551.4995150.002082
0.6886361.4994710.002078
0.6902161.4994280.002074
0.6917961.4993850.00207
0.6933761.4993430.002066
0.6949561.49930.002062
0.6965361.4992590.002059
0.6981161.4992170.002055
0.6996951.4991760.002051
0.7012751.4991350.002047
0.7028541.4990940.002043
0.7044331.4990540.002039
0.7060121.4990140.002036
0.7075911.4989740.002032
0.709171.4989350.002028
0.7107481.4988960.002025
0.7123261.4988570.002021
0.7139051.4988180.002017
0.7154831.498780.002014
0.7170611.4987420.00201
0.7186381.4987040.002007
0.7202161.4986670.002003
0.7217931.498630.002
0.7233711.4985930.001996
0.7249481.4985560.001993
0.7265251.498520.001989
0.7281011.4984840.001986
0.7296781.4984480.001982
0.7312551.4984130.001979
0.7328311.4983770.001975
0.7344071.4983420.001972
0.7359831.4983080.001969
0.7375591.4982730.001965
0.7391351.4982390.001962
0.740711.4982050.001959
0.7422861.4981710.001956
0.7438611.4981370.001952
0.7454361.4981040.001949
0.7470111.4980710.001946
0.7485851.4980380.001943
0.750161.4980060.00194
0.7517341.4979730.001937
0.7533081.4979410.001933
0.7548831.4979090.00193
0.7564561.4978770.001927
0.758031.4978460.001924
0.7596041.4978150.001921
0.7611771.4977830.001918
0.762751.4977530.001915
0.7643231.4977220.001912
0.7658961.4976920.001909
0.7674691.4976610.001906
0.7690421.4976310.001903
0.7706141.4976010.0019
0.7721861.4975720.001897
0.7737581.4975420.001895
0.775331.4975130.001892
0.7769021.4974840.001889
0.7784731.4974550.001886
0.7800451.4974270.001883
0.7816161.4973980.00188
0.7831871.497370.001878
0.7847581.4973420.001875
0.7863281.4973140.001872
0.7878991.4972860.001869
0.7894691.4972590.001867
0.7910391.4972320.001864
0.7926091.4972040.001861
0.7941791.4971770.001858
0.7957481.4971510.001856
0.7973181.4971240.001853
0.7988871.4970980.00185
0.8004561.4970710.001848
0.8020251.4970450.001845
0.8035931.4970190.001843
0.8051621.4969940.00184
0.806731.4969680.001837
0.8082981.4969430.001835
0.8098661.4969170.001832
0.8114341.4968920.00183
0.8130011.4968670.001827
0.8145691.4968430.001825
0.8161361.4968180.001822
0.8177031.4967930.00182
0.819271.4967690.001817
0.8208361.4967450.001815
0.8224031.4967210.001812
0.8239691.4966970.00181
0.8255351.4966730.001808
0.8271011.496650.001805
0.8286671.4966260.001803
0.8302321.4966030.0018
0.8317981.496580.001798
0.8333631.4965570.001796
0.8349281.4965340.001793
0.8364921.4965110.001791
0.8380571.4964890.001789
0.8396211.4964670.001786
0.8411851.4964440.001784
0.8427491.4964220.001782
0.8443131.49640.00178
0.8458771.4963780.001777
0.847441.4963560.001775
0.8490031.4963350.001773
0.8505661.4963130.001771
0.8521291.4962920.001768
0.8536911.4962710.001766
0.8552541.496250.001764
0.8568161.4962290.001762
0.8583781.4962080.00176
0.859941.4961870.001758
0.8615011.4961670.001755
0.8630631.4961460.001753
0.8646241.4961260.001751
0.8661851.4961060.001749
0.8677451.4960860.001747
0.8693061.4960650.001745
0.8708661.4960460.001743
0.8724261.4960260.001741
0.8739861.4960060.001739
0.8755461.4959870.001737
0.8771061.4959670.001735
0.8786651.4959480.001733
0.8802241.4959290.00173
0.8817831.495910.001728
0.8833411.4958910.001726
0.88491.4958720.001724
0.8864581.4958530.001722
0.8880161.4958350.001721
0.8895741.4958160.001719
0.8911321.4957980.001717
0.8926891.4957790.001715
0.8942461.4957610.001713
0.8958031.4957430.001711
0.897361.4957250.001709
0.8989171.4957070.001707
0.9004731.495690.001705
0.9020291.4956720.001703
0.9035851.4956540.001701
0.9051411.4956370.001699
0.9066961.4956190.001698
0.9082521.4956020.001696
0.9098071.4955850.001694
0.9113621.4955680.001692
0.9129161.4955510.00169
0.9144711.4955340.001688
0.9160251.4955170.001687
0.9175791.49550.001685
0.9191321.4954840.001683
0.9206861.4954670.001681
0.9222391.4954510.001679
0.9237921.4954340.001678
0.9253451.4954180.001676
0.9268981.4954020.001674
0.928451.4953860.001672
0.9300021.495370.001671
0.9315541.4953540.001669
0.9331061.4953380.001667
0.9346581.4953220.001665
0.9362091.4953070.001664
0.937761.4952910.001662
0.9393111.4952760.00166
0.9408611.495260.001659
0.9424121.4952450.001657
0.9439621.495230.001655
0.9455121.4952150.001654
0.9470611.49520.001652
0.9486111.4951850.00165
0.950161.495170.001649
0.9517091.4951550.001647
0.9532581.495140.001645
0.9548061.4951260.001644
0.9563541.4951110.001642
0.9579021.4950960.001641
0.959451.4950820.001639
0.9609981.4950680.001637
0.9625451.4950530.001636
0.9640921.4950390.001634
0.9656391.4950250.001633
0.9671861.4950110.001631
0.9687321.4949970.001629
0.9702781.4949830.001628
0.9718241.4949690.001626
0.973371.4949550.001625
0.9749151.4949420.001623
0.9764611.4949280.001622
0.9780051.4949150.00162
0.979551.4949010.001619
0.9810951.4948880.001617
0.9826391.4948740.001616
0.9841831.4948610.001614
0.9857271.4948480.001613
0.987271.4948350.001611
0.9888131.4948220.00161
0.9903561.4948090.001608
0.9918991.4947960.001607
0.9934421.4947830.001605
0.9949841.494770.001604
0.9965261.4947570.001603
0.9980681.4947450.001601
0.9996091.4947320.0016
1.0122691.4946310.001588
1.0156731.4946040.001585
1.0190771.4945780.001582
1.0224811.4945520.001579
1.0258841.4945260.001576
1.0292871.4945010.001573
1.032691.4944750.00157
1.0360931.4944510.001567
1.0394961.4944260.001564
1.0428991.4944010.001562
1.0463011.4943770.001559
1.0497031.4943530.001556
1.0531051.494330.001553
1.0565071.4943060.00155
1.0599091.4942830.001548
1.0633111.494260.001545
1.0667131.4942380.001542
1.0701151.4942150.00154
1.0735161.4941930.001537
1.0769171.4941710.001534
1.0803191.4941490.001532
1.083721.4941270.001529
1.0871211.4941060.001527
1.0905231.4940850.001524
1.0939241.4940640.001522
1.0973251.4940430.001519
1.1007261.4940220.001517
1.1041271.4940020.001514
1.1075291.4939820.001512
1.110931.4939620.001509
1.1143311.4939420.001507
1.1177321.4939220.001505
1.1211331.4939030.001502
1.1245341.4938840.0015
1.1279351.4938650.001498
1.1313371.4938460.001495
1.1347381.4938270.001493
1.1381391.4938090.001491
1.1415411.493790.001488
1.1449431.4937720.001486
1.1483441.4937540.001484
1.1517461.4937360.001482
1.1551481.4937190.00148
1.158551.4937010.001477
1.1619521.4936840.001475
1.1653541.4936670.001473
1.1687561.493650.001471
1.1721581.4936330.001469
1.1755611.4936160.001467
1.1789641.4935990.001465
1.1823671.4935830.001463
1.185771.4935670.00146
1.1891731.4935510.001458
1.1925761.4935350.001456
1.195981.4935190.001454
1.1993841.4935030.001452
1.2027881.4934870.00145
1.2061921.4934720.001448
1.2095961.4934570.001446
1.2130011.4934420.001445
1.2164061.4934260.001443
1.2198111.4934120.001441
1.2232161.4933970.001439
1.2266221.4933820.001437
1.2300281.4933680.001435
1.2334341.4933530.001433
1.236841.4933390.001431
1.2402471.4933250.001429
1.2436541.4933110.001428
1.2470621.4932970.001426
1.2504691.4932830.001424
1.2538771.4932690.001422
1.2572861.4932560.00142
1.2606941.4932420.001419
1.2641031.4932290.001417
1.2675121.4932160.001415
1.2709221.4932020.001413
1.2743321.4931890.001412
1.2777431.4931760.00141
1.2811541.4931640.001408
1.2845651.4931510.001407
1.2879761.4931380.001405
1.2913881.4931260.001403
1.2948011.4931140.001402
1.2982141.4931010.0014
1.3016271.4930890.001398
1.305041.4930770.001397
1.3084551.4930650.001395
1.3118691.4930530.001393
1.3152841.4930410.001392
1.31871.4930290.00139
1.3221161.4930180.001389
1.3255321.4930060.001387
1.3289491.4929950.001386
1.3323661.4929830.001384
1.3357841.4929720.001382
1.3392031.4929610.001381
1.3426221.492950.001379
1.3460411.4929390.001378
1.3494611.4929280.001376
1.3528821.4929170.001375
1.3563031.4929060.001373
1.3597241.4928950.001372
1.3631471.4928850.001371
1.3665691.4928740.001369
1.3699931.4928640.001368
1.3734171.4928540.001366
1.3768411.4928430.001365
1.3802661.4928330.001363
1.3836921.4928230.001362
1.3871181.4928130.00136
1.3905451.4928030.001359
1.3939731.4927930.001358
1.3974011.4927830.001356
1.400831.4927730.001355
1.404261.4927640.001354
1.407691.4927540.001352
1.4111211.4927450.001351
1.4145521.4927350.001349
1.4179851.4927260.001348
1.4214181.4927160.001347
1.4248511.4927070.001346
1.4282861.4926980.001344
1.4317211.4926890.001343
1.4351561.492680.001342
1.4385931.4926710.00134
1.442031.4926620.001339
1.4454681.4926530.001338
1.4489071.4926440.001336
1.4523461.4926350.001335
1.4557871.4926270.001334
1.4592281.4926180.001333
1.4626691.4926090.001331
1.4661121.4926010.00133
1.4695551.4925920.001329
1.4731.4925840.001328
1.4764451.4925760.001327
1.4798911.4925670.001325
1.4833371.4925590.001324
1.4867851.4925510.001323
1.4902331.4925430.001322
1.4936821.4925350.001321
1.4971321.4925270.001319
1.5005831.4925190.001318
1.5040351.4925110.001317
1.5074881.4925030.001316
1.5109421.4924950.001315
1.5143961.4924880.001314
1.5178511.492480.001312
1.5213081.4924720.001311
1.5247651.4924650.00131
1.5282231.4924570.001309
1.5316821.492450.001308
1.5351421.4924420.001307
1.5386031.4924350.001306
1.5420651.4924280.001305
1.5455281.492420.001303
1.5489921.4924130.001302
1.5524571.4924060.001301
1.5559221.4923990.0013
1.5593891.4923920.001299
1.5628571.4923850.001298
1.5663261.4923780.001297
1.5697961.4923710.001296
1.5732671.4923640.001295
1.5767391.4923570.001294
1.5802121.492350.001293
1.5836861.4923430.001292
1.5871611.4923370.001291
1.5906371.492330.00129
1.5941141.4923230.001289
1.5975921.4923170.001288
1.6010721.492310.001287
1.6045521.4923040.001286
1.6080341.4922970.001285
1.6115161.4922910.001284
1.6151.4922840.001283
1.6184851.4922780.001282
1.6219711.4922720.001281
1.6254581.4922650.00128
1.6289471.4922590.001279
1.6324361.4922530.001278
1.6359271.4922470.001277
1.6394191.4922410.001276
1.6429121.4922350.001275
1.6464061.4922290.001274
1.6499011.4922230.001273
1.6533981.4922170.001272
1.6568961.4922110.001271
1.6603951.4922050.00127
1.6638951.4921990.001269
1.6673961.4921930.001268
1.6708991.4921870.001267
1.6744031.4921820.001266
1.6779081.4921760.001265
1.6814151.492170.001265
1.6849221.4921640.001264
1.6884311.4921590.001263

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
—