Optical constants

Refractive index of P-SF8 (SCHOTT)

P-SF8: n,k 0.365–2.5 µm

Data
formula 2 + tabulated k
Range
0.365–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–2.5 µm
Refractive index n
1.68893
Extinction coefficient k
2.56161e-08
Permittivity ε1
2.85247
Permittivity ε2
8.65273e-08
Absorption coefficient α
0.00547823 cm⁻¹
Penetration depth δ = λ/(2πk)
3.65081e+09 nm
Abbe number Vd
31.25
Chromatic dispersion dn/dλ
-0.111066 µm⁻¹
Group index ng
1.75419
Group velocity dispersion
221.922 fs²/mm
Dispersion parameter D
-1210.7 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

# P-SF8 (SCHOTT): P-SF8
schott_p_sf8 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "P-SF8", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_p_sf8.range_nm)  # (365, 2500) nm
eps = schott_p_sf8.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.

Dispersion formula

Sellmeier (C in µm²) (formula 2), λ in µm
n2−1=1.55370411λ2λ2−0.011658267+0.206332561λ2λ2−0.0582087757+1.39708831λ2λ2−130.748028

Valid from 0.365 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.55370411
C30.011658267
C40.206332561
C50.0582087757
C61.39708831
C7130.748028

Comments and conditions

suitable for precision molding

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -4.27e-06 8.16e-09 -2e-11 9.02e-07 1.22e-09 0.272
nd
1.68893
Vd
31.25
glass code
689313.290
glass status
standard
density
value: 2898
thermal expansion
value: 9.41e-06, temperature range: 243 343; value: 1.11e-05, temperature range: 293 573
dPgF
0.0079
resistance
acid: 1.0; stain: 0.0; alkali: 1.2; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -8.23e-07 K⁻¹ at 633 nm, dn/dT = -1.97e-06 K⁻¹ at 1310 nm, dn/dT = -2.05e-06 K⁻¹ at 1550 nm

References

Cite

SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com); See also SCHOTT glass data sheets; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 418 wavelengths, the same grid as the API and the library
P-SF8 (SCHOTT), P-SF8: n and k versus wavelength
λ (µm)nk
0.3651.751493.739800e-06
0.3667641.7502653.208528e-06
0.3685371.7490632.674688e-06
0.371.7480922.234300e-06
0.3703191.7478832.191354e-06
0.3721091.7467251.950309e-06
0.3739081.7455881.708098e-06
0.3757151.7444711.464717e-06
0.3775321.7433741.220159e-06
0.3793571.7422979.744186e-07
0.381.7419238.877900e-07
0.381191.7412388.327159e-07
0.3830331.7401977.474688e-07
0.3848851.7391756.618096e-07
0.3867451.738175.757363e-07
0.3886151.7371814.892469e-07
0.391.7364634.251700e-07
0.3904941.7362094.166575e-07
0.3923811.7352543.840970e-07
0.3942781.7343143.513791e-07
0.3961841.7333893.185030e-07
0.3980991.7324792.854681e-07
0.41.7315952.526800e-07
0.4000241.7315842.524765e-07
0.4019571.7307032.357805e-07
0.40391.7298372.190039e-07
0.4051.7293542.095100e-07
0.4058531.7289832.056066e-07
0.4078151.7281431.966275e-07
0.4097861.7273161.876050e-07
0.4117671.7265021.785390e-07
0.4137581.72571.694290e-07
0.4157581.7249111.602751e-07
0.4177681.7241331.510769e-07
0.4197871.7233671.418342e-07
0.421.7232871.408600e-07
0.4218161.7226121.363031e-07
0.4238561.7218691.311875e-07
0.4259041.7211361.260472e-07
0.4279631.7204141.208820e-07
0.4300321.7197031.156919e-07
0.4321111.7190011.104767e-07
0.43421.718311.052363e-07
0.4361.7177251.007200e-07
0.4362991.7176291.004012e-07
0.4384081.7169579.815014e-08
0.4405271.7162959.588823e-08
0.4426571.7156429.361539e-08
0.4447971.7149989.133156e-08
0.4469471.7143638.903669e-08
0.4491071.7137378.673073e-08
0.4512781.713128.441362e-08
0.453461.7125118.208531e-08
0.4556521.711917.974575e-08
0.4578551.7113177.739487e-08
0.461.710757.510500e-08
0.4600681.7107327.505430e-08
0.4622921.7101557.339153e-08
0.4645271.7095867.172072e-08
0.4667721.7090247.004183e-08
0.4690291.7084696.835482e-08
0.4712961.7079226.665966e-08
0.4735741.7073826.495630e-08
0.4758631.7068496.324471e-08
0.4781641.7063236.152485e-08
0.4804751.7058045.979667e-08
0.4827981.7052915.806014e-08
0.4851321.7047855.631522e-08
0.4874771.7042855.456186e-08
0.4898331.7037925.280002e-08
0.4922011.7033045.102966e-08
0.4945811.7028234.925075e-08
0.4969721.7023484.746324e-08
0.4993741.7018794.566709e-08
0.51.7017584.519900e-08
0.5017881.7014164.439463e-08
0.5042141.7009584.330333e-08
0.5066511.7005064.220677e-08
0.50911.7000594.110490e-08
0.5115611.6996183.999770e-08
0.5140341.6991823.888515e-08
0.5165191.6987523.776723e-08
0.5190161.6983263.664390e-08
0.5215251.6979063.551514e-08
0.5240461.6974913.438092e-08
0.5265791.697083.324122e-08
0.5291251.6966753.209601e-08
0.5316831.6962743.094527e-08
0.5342531.6958782.978896e-08
0.5368351.6954872.862706e-08
0.5394311.69512.745955e-08
0.5420381.6947182.628639e-08
0.5446581.694342.510756e-08
0.5461.6941492.450400e-08
0.5472911.6939662.449086e-08
0.5499371.6935972.446394e-08
0.5525951.6932322.443688e-08
0.5552671.6928712.440970e-08
0.5579511.6925142.438238e-08
0.5606481.6921612.435493e-08
0.5633581.6918132.432735e-08
0.5660821.6914682.429964e-08
0.5688181.6911272.427179e-08
0.5715681.6907892.424381e-08
0.5743311.6904562.421569e-08
0.5771071.6901262.418744e-08
0.5798971.68982.415905e-08
0.581.6897882.415800e-08
0.58271.6894782.467604e-08
0.5855171.6891592.521644e-08
0.5883471.6888432.575946e-08
0.5911921.6885312.630510e-08
0.5940491.6882222.685339e-08
0.5969211.6879172.740432e-08
0.5998071.6876152.795791e-08
0.6027061.6873162.851418e-08
0.605621.687022.907314e-08
0.6085471.6867282.963481e-08
0.6114891.6864383.019918e-08
0.6144451.6861523.076629e-08
0.6174151.6858683.133613e-08
0.621.6856253.183200e-08
0.62041.6855883.185253e-08
0.6233991.685313.200646e-08
0.6264131.6850363.216113e-08
0.6294411.6847643.231655e-08
0.6324831.6844953.247271e-08
0.6355411.6842293.262964e-08
0.6386131.6839653.278732e-08
0.64171.6837053.294577e-08
0.6448021.6834473.310498e-08
0.6479191.6831913.326496e-08
0.6510511.6829383.342572e-08
0.6541991.6826883.358725e-08
0.6573611.682443.374956e-08
0.661.6822363.388500e-08
0.6605391.6821953.379090e-08
0.6637321.6819523.323331e-08
0.666941.6817113.267302e-08
0.6701651.6814733.211002e-08
0.6734041.6812373.154430e-08
0.6766591.6810033.097585e-08
0.679931.6807723.040464e-08
0.6832171.6805432.983068e-08
0.686521.6803162.925394e-08
0.6898391.6800922.867442e-08
0.6931731.6798692.809209e-08
0.6965241.6796492.750695e-08
0.6998911.6794312.691897e-08
0.71.6794242.690000e-08
0.7032751.6792142.674752e-08
0.7066741.6792.658922e-08
0.710091.6787882.643015e-08
0.7135231.6785782.627031e-08
0.7169721.678372.610970e-08
0.7204381.6781632.594832e-08
0.7239211.6779592.578615e-08
0.727421.6777562.562320e-08
0.7309371.6775562.545946e-08
0.734471.6773572.529494e-08
0.7380211.677162.512961e-08
0.7415881.6769642.496349e-08
0.7451731.6767712.479656e-08
0.7487751.6765792.462883e-08
0.7523951.6763892.446028e-08
0.7560321.67622.429092e-08
0.7596871.6760132.412075e-08
0.7633591.6758282.394975e-08
0.7670491.6756442.377792e-08
0.7707571.6754622.360526e-08
0.7744831.6752822.343177e-08
0.7782271.6751032.325744e-08
0.7819891.6749252.308226e-08
0.7857691.674752.290624e-08
0.7895681.6745752.272937e-08
0.7933851.6744022.255165e-08
0.797221.674232.237306e-08
0.8010741.674062.219361e-08
0.8049461.6738912.201329e-08
0.8088371.6737242.183211e-08
0.8127471.6735582.165004e-08
0.8166761.6733932.146710e-08
0.8206241.673232.128327e-08
0.8245911.6730672.109855e-08
0.8285771.6729072.091294e-08
0.8325831.6727472.072644e-08
0.8366071.6725882.053903e-08
0.8406521.6724312.035071e-08
0.8447151.6722752.016149e-08
0.8487991.672121.997135e-08
0.8529021.6719671.978029e-08
0.8570251.6718141.958831e-08
0.8611681.6716631.939540e-08
0.8653311.6715121.920155e-08
0.8695141.6713631.900677e-08
0.8737171.6712151.881105e-08
0.8779411.6710681.861438e-08
0.8821851.6709221.841676e-08
0.8864491.6707771.821819e-08
0.8907351.6706331.801866e-08
0.895041.670491.781816e-08
0.8993671.6703481.761669e-08
0.9037151.6702061.741425e-08
0.9080831.6700661.721083e-08
0.9124731.6699271.700643e-08
0.9168841.6697891.680103e-08
0.9213161.6696511.659465e-08
0.925771.6695151.638727e-08
0.9302451.6693791.617888e-08
0.9347421.6692441.596949e-08
0.9392611.669111.575909e-08
0.9438011.6689771.554767e-08
0.9483641.6688441.533522e-08
0.9529481.6687131.512175e-08
0.9575551.6685821.490725e-08
0.9621841.6684521.469171e-08
0.9668351.6683231.447513e-08
0.9715091.6681941.425750e-08
0.9762051.6680661.403882e-08
0.9809241.6679391.381908e-08
0.9856661.6678121.359828e-08
0.9904311.6676871.337642e-08
0.9952191.6675621.315348e-08
1.000031.6674371.292946e-08
1.004861.6673131.270436e-08
1.009721.667191.247817e-08
1.01461.6670671.225089e-08
1.019511.6669451.202251e-08
1.024441.6668241.179303e-08
1.029391.6667031.156243e-08
1.034361.6665831.133073e-08
1.039361.6664631.109790e-08
1.044391.6663441.086394e-08
1.049441.6662251.062886e-08
1.054511.6661071.039264e-08
1.059611.6659891.015527e-08
1.061.665981.013700e-08
1.064731.6658721.117536e-08
1.069881.6657551.230532e-08
1.075051.6656391.344075e-08
1.080251.6655231.458166e-08
1.085471.6654081.572808e-08
1.090711.6652931.688005e-08
1.095991.6651781.803759e-08
1.101291.6650641.920072e-08
1.106611.664952.036948e-08
1.111961.6648372.154388e-08
1.117331.6647242.272396e-08
1.122741.6646112.390975e-08
1.128161.6644992.510127e-08
1.133621.6643862.629855e-08
1.13911.6642752.750161e-08
1.14461.6641632.871050e-08
1.150141.6640522.992522e-08
1.15571.6639413.114582e-08
1.161281.6638313.237232e-08
1.16691.663723.360475e-08
1.172541.663613.484313e-08
1.17821.6635013.608750e-08
1.18391.6633913.733789e-08
1.189621.6632823.859432e-08
1.195371.6631723.985683e-08
1.201151.6630634.112543e-08
1.206961.6629544.240017e-08
1.212791.6628464.368108e-08
1.218661.6627374.496817e-08
1.224551.6626294.626149e-08
1.230471.6625214.756106e-08
1.236421.6624134.886691e-08
1.242391.6623055.017907e-08
1.24841.6621975.149758e-08
1.254431.6620895.282246e-08
1.26051.6619815.415374e-08
1.266591.6618745.549147e-08
1.272711.6617665.683565e-08
1.278871.6616585.818634e-08
1.285051.6615515.954355e-08
1.291261.6614436.090733e-08
1.29751.6613366.227770e-08
1.303771.6612286.365469e-08
1.310081.6611216.503834e-08
1.316411.6610136.642867e-08
1.322771.6609066.782573e-08
1.329171.6607986.922954e-08
1.335591.6606917.064014e-08
1.342051.6605837.205756e-08
1.348541.6604757.348183e-08
1.355061.6603677.491298e-08
1.361611.6602597.635105e-08
1.368191.6601517.779608e-08
1.37481.6600437.924809e-08
1.381451.6599358.070712e-08
1.388131.6598268.217320e-08
1.394841.6597188.364637e-08
1.401581.6596098.512666e-08
1.408351.65958.661410e-08
1.415161.6593918.810874e-08
1.4221.6592828.961060e-08
1.428881.6591729.111972e-08
1.435781.6590629.263614e-08
1.442731.6589529.415989e-08
1.44971.6588429.569100e-08
1.456711.6587329.722951e-08
1.463751.6586219.877547e-08
1.470831.658511.003289e-07
1.477941.6583991.018898e-07
1.485081.6582871.034583e-07
1.492261.6581751.050344e-07
1.499471.6580631.066180e-07
1.506721.657951.082094e-07
1.5141.6578381.098084e-07
1.521321.6577241.114152e-07
1.528681.6576111.130297e-07
1.531.657591.133200e-07
1.536071.6574971.258104e-07
1.543491.6573821.410963e-07
1.550951.6572671.564562e-07
1.558451.6571521.718904e-07
1.565991.6570371.873991e-07
1.573561.6569212.029828e-07
1.581161.6568042.186419e-07
1.588811.6566872.343766e-07
1.596491.656572.501874e-07
1.60421.6564522.660747e-07
1.611961.6563332.820387e-07
1.619751.6562142.980799e-07
1.627581.6560953.141987e-07
1.635451.6559753.303954e-07
1.643351.6558543.466703e-07
1.65131.6557333.630240e-07
1.659281.6556113.794567e-07
1.66731.6554893.959688e-07
1.675361.6553664.125608e-07
1.683461.6552424.292330e-07
1.69161.6551184.459857e-07
1.699781.6549944.628195e-07
1.707991.6548684.797346e-07
1.716251.6547424.967315e-07
1.724551.6546155.138105e-07
1.732881.6544885.309721e-07
1.741261.654365.482167e-07
1.749681.6542315.655446e-07
1.758131.6541015.829564e-07
1.766631.6539716.004522e-07
1.775171.653846.180327e-07
1.783761.6537086.356981e-07
1.792381.6535756.534489e-07
1.801041.6534416.712856e-07
1.809751.6533076.892084e-07
1.81851.6531727.072179e-07
1.827291.6530367.253145e-07
1.836121.6528997.434985e-07
1.8451.6527617.617705e-07
1.853921.6526237.801307e-07
1.862881.6524837.985798e-07
1.871881.6523438.171180e-07
1.880931.6522028.357458e-07
1.890021.6520598.544637e-07
1.899161.6519168.732720e-07
1.908341.6517728.921713e-07
1.917571.6516269.111620e-07
1.926841.651489.302444e-07
1.936151.6513339.494191e-07
1.945511.6511849.686865e-07
1.954921.6510359.880470e-07
1.964371.6508841.007501e-06
1.971.6507951.019100e-06
1.973861.6507331.053266e-06
1.98341.650581.137691e-06
1.992991.6504261.222524e-06
2.002631.6502711.307767e-06
2.012311.6501151.393422e-06
2.022031.6499581.479491e-06
2.031811.6497991.565976e-06
2.041631.649641.652879e-06
2.05151.6494791.740202e-06
2.061421.6493161.827948e-06
2.071381.6491531.916117e-06
2.08141.6489882.004713e-06
2.091461.6488222.093737e-06
2.101571.6486552.183191e-06
2.111731.6484862.273078e-06
2.121931.6483162.363400e-06
2.132191.6481442.454158e-06
2.14251.6479712.545354e-06
2.152861.6477972.636992e-06
2.163261.6476212.729073e-06
2.173721.6474442.821598e-06
2.184231.6472652.914571e-06
2.194791.6470853.007994e-06
2.20541.6469033.101868e-06
2.216061.646723.196195e-06
2.226771.6465353.290979e-06
2.237541.6463483.386221e-06
2.248351.646163.481924e-06
2.259221.6459713.578089e-06
2.270141.6457793.674718e-06
2.281121.6455863.771815e-06
2.292141.6453923.869382e-06
2.303221.6451953.967420e-06
2.314361.6449974.065932e-06
2.3251.6448074.160100e-06
2.325541.6447974.166930e-06
2.336791.6445954.307884e-06
2.348081.6443914.449519e-06
2.359431.6441864.591839e-06
2.370841.6439794.734846e-06
2.38231.6437694.878545e-06
2.393821.6435585.022939e-06
2.405391.6433455.168030e-06
2.417021.643135.313823e-06
2.42871.6429135.460321e-06
2.440441.6426945.607527e-06
2.452241.6424735.755445e-06
2.464091.642255.904077e-06
2.4761.6420256.053428e-06
2.487971.6417976.203501e-06
2.51.6415686.354300e-06

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
—