Optical constants

Refractive index of J-LASFH16 (HIKARI)

J-LASFH16: n,k 0.3889–2.058 µm

Data
formula 3 + tabulated k
Range
0.3889–2.058 µm
Temperature
296 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.3889–2.058 µm
Refractive index n
2.00099
Extinction coefficient k
2.20158e-08
Permittivity ε1
4.00397
Permittivity ε2
8.81069e-08
Absorption coefficient α
0.00470828 cm⁻¹
Penetration depth δ = λ/(2πk)
4.24784e+09 nm
Abbe number Vd
29.124
Chromatic dispersion dn/dλ
-0.173049 µm⁻¹
Group index ng
2.10268
Group velocity dispersion
348.742 fs²/mm
Dispersion parameter D
-1902.57 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

# J-LASFH16 (HIKARI): J-LASFH16
hikari_j_lasfh16 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASFH16", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lasfh16.range_nm)  # (388.865, 2058.09) nm
eps = hikari_j_lasfh16.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

Polynomial (formula 3), λ in µm
n2=3.83294326−0.0156840611⁢λ2.0+0.0528843692⁢λ−2.0+0.00350978963⁢λ−4.0−0.000506491928⁢λ−6.0+0.000115081798⁢λ−8.0−1.10388704×10-5⁢λ−10.0+5.01900181×10-7⁢λ−12.0

Valid from 0.388865 to 2.05809 µm.

Coefficients as stored
CiValue
C13.83294326
C2-0.0156840611
C32.0
C40.0528843692
C5-2.0
C60.00350978963
C7-4.0
C8-0.000506491928
C9-6.0
C100.000115081798
C11-8.0
C12-1.10388704e-05
C13-10.0
C145.01900181e-07
C15-12.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: -4.41876e-07 1.0879e-08 1.5014e-12 1.0477e-06 1.44399e-09 0.264948
nd
2.001000
Vd
29.123651
density
value: 5100
thermal expansion
value: 7.1e-06, temperature range: 243 343
dPgF
0.0041
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 2.04e-06 K⁻¹ at 633 nm, dn/dT = 1.41e-07 K⁻¹ at 1310 nm, dn/dT = 5.29e-09 K⁻¹ at 1550 nm

References

Cite

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com); See also HIKARI 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 419 wavelengths, the same grid as the API and the library
J-LASFH16 (HIKARI), J-LASFH16: n and k versus wavelength
λ (µm)nk
0.3888652.0759991.451683e-06
0.392.0750861.336900e-06
0.3904922.0746931.314086e-06
0.3921272.0734061.238368e-06
0.3937682.0721371.162333e-06
0.3954152.0708861.085980e-06
0.397072.0696521.009307e-06
0.3987322.0684369.323135e-07
0.42.0675228.735600e-07
0.4004012.0672368.653851e-07
0.4020762.0660538.311927e-07
0.4037592.0648867.968572e-07
0.4054492.0637347.623780e-07
0.4071452.0625987.277545e-07
0.4088492.0614776.929861e-07
0.410562.0603716.580722e-07
0.4122782.059286.230122e-07
0.4140042.0582035.878055e-07
0.4157362.0571395.524514e-07
0.4174762.056095.169494e-07
0.4192232.0550544.812988e-07
0.422.0545994.654500e-07
0.4209782.0540314.567825e-07
0.4227392.0530214.411644e-07
0.4245092.0520244.254811e-07
0.4262852.051044.097321e-07
0.4280692.0500683.939172e-07
0.4298612.0491083.780361e-07
0.431662.0481593.620885e-07
0.4334662.0472233.460742e-07
0.435282.0462983.299929e-07
0.4371022.0453843.138443e-07
0.4389312.0444812.976281e-07
0.442.0439612.881500e-07
0.4407682.043592.845927e-07
0.4426122.0427092.760458e-07
0.4444652.0418382.674632e-07
0.4463252.0409782.588447e-07
0.4481932.0401282.501900e-07
0.4500682.0392882.414992e-07
0.4519522.0384582.327720e-07
0.4538432.0376382.240083e-07
0.4557422.0368272.152079e-07
0.457652.0360262.063706e-07
0.4595652.0352341.974964e-07
0.462.0350561.954800e-07
0.4614882.0344511.910612e-07
0.4634192.0336771.853262e-07
0.4653592.0329121.795672e-07
0.4673062.0321561.737842e-07
0.4692622.0314081.679769e-07
0.4712262.0306691.621453e-07
0.4731982.0299381.562893e-07
0.4751782.0292151.504088e-07
0.4771672.0285011.445037e-07
0.4791642.0277941.385739e-07
0.482.0275011.360900e-07
0.4811692.0270951.333096e-07
0.4831822.0264041.285193e-07
0.4852052.025721.237089e-07
0.4872352.0250441.188785e-07
0.4892742.0243751.140278e-07
0.4913222.0237141.091568e-07
0.4933782.023061.042654e-07
0.4954432.0224139.935361e-08
0.4975162.0217729.442122e-08
0.4995982.0211398.946819e-08
0.52.0210188.851200e-08
0.5016892.0205138.656082e-08
0.5037882.0198938.413515e-08
0.5058972.019288.169933e-08
0.5080142.0186737.925331e-08
0.510142.0180737.679706e-08
0.5122752.0174797.433052e-08
0.5144192.0168917.185367e-08
0.5165712.0163096.936645e-08
0.5187332.0157346.686882e-08
0.5209042.0151646.436074e-08
0.5230842.0146016.184216e-08
0.5252732.0140435.931304e-08
0.5274712.0134915.677334e-08
0.5296792.0129455.422301e-08
0.5318952.0124045.166201e-08
0.5341212.0118694.909029e-08
0.5363572.0113394.650780e-08
0.5386012.0108144.391451e-08
0.5408552.0102954.131037e-08
0.5431192.0097823.869533e-08
0.5453922.0092733.606934e-08
0.5476742.0087693.343237e-08
0.5499662.0082713.078436e-08
0.552.0082633.074500e-08
0.5522682.0077773.021858e-08
0.5545792.0072892.968201e-08
0.55692.0068052.914320e-08
0.559232.0063262.860213e-08
0.561572.0058512.805879e-08
0.5639212.0053822.751319e-08
0.5662812.0049172.696530e-08
0.568652.0044562.641512e-08
0.571032.0042.586263e-08
0.573422.0035492.530783e-08
0.575822.0031022.475071e-08
0.5782292.0026592.419126e-08
0.5806492.002222.362947e-08
0.5830792.0017862.306533e-08
0.5855192.0013562.249882e-08
0.587972.000932.192995e-08
0.590432.0005072.135870e-08
0.5929012.0000892.078505e-08
0.5953821.9996752.020900e-08
0.5978741.9992651.963055e-08
0.61.998921.913700e-08
0.6003761.9988591.922722e-08
0.6028891.9984571.982983e-08
0.6054121.9980582.043495e-08
0.6079451.9976632.104261e-08
0.610491.9972722.165282e-08
0.6130441.9968842.226557e-08
0.615611.99652.288089e-08
0.6181861.996122.349879e-08
0.6207731.9957432.411927e-08
0.6233711.9953692.474235e-08
0.625981.9949992.536803e-08
0.62861.9946332.599634e-08
0.631231.994272.662727e-08
0.6338721.993912.726084e-08
0.6365251.9935532.789707e-08
0.6391881.9931992.853596e-08
0.6418631.9928492.917752e-08
0.644551.9925022.982177e-08
0.6472471.9921583.046871e-08
0.6499561.9918173.111836e-08
0.651.9918113.112900e-08
0.6526761.9914793.125711e-08
0.6554071.9911443.138789e-08
0.658151.9908123.151922e-08
0.6609041.9904833.165109e-08
0.663671.9901573.178352e-08
0.6664471.9898343.191650e-08
0.6692361.9895143.205004e-08
0.6720371.9891963.218414e-08
0.674851.9888823.231880e-08
0.6776741.988573.245402e-08
0.680511.988263.258981e-08
0.6833581.9879543.272617e-08
0.6862171.987653.286309e-08
0.6890891.9873483.300059e-08
0.6919731.987053.313867e-08
0.6948691.9867533.327732e-08
0.6977771.986463.341656e-08
0.71.9862383.352300e-08
0.7006971.9861683.364575e-08
0.7036291.985883.416217e-08
0.7065741.9855933.468075e-08
0.7095311.985313.520150e-08
0.71251.9850283.572443e-08
0.7154821.9847493.624955e-08
0.7184761.9844723.677687e-08
0.7214831.9841983.730639e-08
0.7245021.9839263.783813e-08
0.7275341.9836563.837209e-08
0.7305791.9833883.890829e-08
0.7336371.9831223.944673e-08
0.7367071.9828593.998743e-08
0.739791.9825984.053038e-08
0.7428861.9823394.107562e-08
0.7459951.9820824.162313e-08
0.7491171.9818274.217293e-08
0.7522521.9815744.272504e-08
0.75541.9813234.327945e-08
0.7585611.9810744.383619e-08
0.7617361.9808274.439525e-08
0.7649231.9805834.495666e-08
0.7681251.980344.552041e-08
0.7713391.9800994.608652e-08
0.7745671.9798594.665501e-08
0.7778091.9796224.722587e-08
0.7810641.9793874.779912e-08
0.7843321.9791534.837477e-08
0.7876151.9789214.895283e-08
0.7909111.9786914.953330e-08
0.7942211.9784635.011621e-08
0.7975441.9782375.070156e-08
0.81.9780715.113400e-08
0.8008821.9780125.080941e-08
0.8042341.9777894.957614e-08
0.8075991.9775674.833771e-08
0.8109791.9773474.709410e-08
0.8143731.9771294.584529e-08
0.8177811.9769134.459124e-08
0.8212041.9766984.333195e-08
0.824641.9764854.206739e-08
0.8280911.9762734.079754e-08
0.8315571.9760633.952238e-08
0.8350371.9758543.824188e-08
0.8385311.9756473.695601e-08
0.8420411.9754413.566477e-08
0.8455641.9752373.436813e-08
0.8491031.9750343.306605e-08
0.8526561.9748333.175853e-08
0.8562251.9746333.044554e-08
0.8598081.9744342.912705e-08
0.8634061.9742372.780304e-08
0.867021.9740422.647350e-08
0.8706481.9738472.513839e-08
0.8742921.9736542.379769e-08
0.877951.9734622.245138e-08
0.8816251.9732722.109944e-08
0.8853141.9730831.974184e-08
0.8890191.9728951.837855e-08
0.892741.9727081.700957e-08
0.8964761.9725231.563485e-08
0.91.9723491.433800e-08
0.9002271.9723381.437790e-08
0.9039951.9721551.503934e-08
0.9077781.9719741.570355e-08
0.9115771.9717931.637053e-08
0.9153921.9716131.704031e-08
0.9192231.9714351.771289e-08
0.9230691.9712581.838829e-08
0.9269321.9710821.906651e-08
0.9308121.9709071.974758e-08
0.9347071.9707332.043149e-08
0.9386191.970562.111826e-08
0.9425471.9703882.180791e-08
0.9464911.9702172.250044e-08
0.9504521.9700472.319587e-08
0.954431.9698782.389422e-08
0.9584241.9697112.459548e-08
0.9624351.9695442.529968e-08
0.9664631.9693782.600683e-08
0.9705071.9692132.671693e-08
0.9745691.9690492.743001e-08
0.9786471.9688862.814607e-08
0.9827431.9687242.886513e-08
0.9868551.9685632.958720e-08
0.9909851.9684023.031229e-08
0.9951321.9682433.104041e-08
0.9992971.9680843.177158e-08
11.9680583.189500e-08
1.003481.9679273.167274e-08
1.007681.967773.140446e-08
1.01191.9676143.113505e-08
1.016131.9674583.086452e-08
1.020381.9673043.059285e-08
1.024651.967153.032005e-08
1.028941.9669973.004610e-08
1.033251.9668452.977101e-08
1.037571.9666932.949477e-08
1.041911.9665432.921737e-08
1.046271.9663932.893881e-08
1.050651.9662432.865908e-08
1.055051.9660952.837819e-08
1.059461.9659472.809612e-08
1.06391.96582.781286e-08
1.068351.9656532.752843e-08
1.072821.9655072.724280e-08
1.077311.9653622.695597e-08
1.081821.9652172.666795e-08
1.086351.9650732.637872e-08
1.090891.964932.608828e-08
1.095461.9647872.579663e-08
1.100041.9646442.550375e-08
1.104651.9645032.520965e-08
1.109271.9643612.491432e-08
1.113911.9642212.461775e-08
1.118571.9640812.431994e-08
1.123251.9639412.402089e-08
1.127961.9638022.372058e-08
1.132681.9636632.341902e-08
1.137421.9635252.311619e-08
1.142181.9633882.281210e-08
1.146961.9632512.250674e-08
1.151761.9631142.220009e-08
1.156581.9629782.189217e-08
1.161421.9628422.158295e-08
1.166281.9627062.127244e-08
1.171161.9625722.096063e-08
1.176061.9624372.064752e-08
1.180981.9623032.033310e-08
1.185921.9621692.001736e-08
1.190891.9620361.970029e-08
1.195871.9619031.938191e-08
1.21.9617931.911800e-08
1.200871.961771.913192e-08
1.20591.9616371.921197e-08
1.210951.9615051.929237e-08
1.216011.9613741.937310e-08
1.22111.9612421.945416e-08
1.226211.9611111.953557e-08
1.231341.960981.961731e-08
1.23651.960851.969940e-08
1.241671.960721.978184e-08
1.246871.960591.986461e-08
1.252091.960461.994774e-08
1.257331.960332.003121e-08
1.262591.9602012.011503e-08
1.267871.9600722.019920e-08
1.273181.9599432.028372e-08
1.278511.9598142.036860e-08
1.283861.9596862.045383e-08
1.289231.9595582.053942e-08
1.294621.959432.062537e-08
1.300041.9593022.071168e-08
1.305481.9591742.079835e-08
1.310951.9590462.088538e-08
1.316431.9589192.097277e-08
1.321941.9587912.106053e-08
1.327471.9586642.114866e-08
1.333031.9585372.123716e-08
1.338611.958412.132603e-08
1.344211.9582832.141527e-08
1.349841.9581562.150488e-08
1.355481.9580292.159487e-08
1.361161.9579022.168523e-08
1.366851.9577752.177598e-08
1.372571.9576492.186710e-08
1.378321.9575222.195860e-08
1.384091.9573952.205049e-08
1.389881.9572682.214276e-08
1.395691.9571422.223542e-08
1.41.9570482.230400e-08
1.401541.9570152.301658e-08
1.40741.9568882.573827e-08
1.413291.9567622.847134e-08
1.419211.9566353.121586e-08
1.425141.9565083.397186e-08
1.431111.9563813.673939e-08
1.43711.9562543.951851e-08
1.443111.9561274.230925e-08
1.449151.9564.511168e-08
1.455221.9558734.792583e-08
1.461311.9557455.075176e-08
1.467421.9556185.358951e-08
1.473561.955495.643915e-08
1.479731.9553635.930070e-08
1.485921.9552356.217423e-08
1.492141.9551076.505979e-08
1.498381.9549786.795743e-08
1.504661.954857.086719e-08
1.510951.9547227.378912e-08
1.517281.9545937.672329e-08
1.523631.9544647.966973e-08
1.531.9543358.262851e-08
1.53641.9542058.559967e-08
1.542831.9540768.858326e-08
1.549291.9539469.157934e-08
1.555771.9538169.458795e-08
1.562291.9536869.760916e-08
1.568821.9535551.006430e-07
1.575391.9534241.036896e-07
1.581981.9532931.067489e-07
1.58861.9531621.098210e-07
1.595251.953031.129059e-07
1.61.9529361.151100e-07
1.601931.9528981.162265e-07
1.608631.9527651.201124e-07
1.615361.9526321.240146e-07
1.622121.9524991.279332e-07
1.628911.9523661.318681e-07
1.635731.9522321.358195e-07
1.642571.9520981.397874e-07
1.649451.9519631.437720e-07
1.656351.9518281.477732e-07
1.663281.9516931.517911e-07
1.670241.9515571.558259e-07
1.677231.9514211.598776e-07
1.684251.9512841.639462e-07
1.69131.9511471.680318e-07
1.698381.951011.721346e-07
1.705491.9508721.762545e-07
1.712621.9507331.803916e-07
1.719791.9505941.845461e-07
1.726991.9504551.887180e-07
1.734211.9503151.929073e-07
1.741471.9501741.971141e-07
1.748761.9500332.013386e-07
1.756081.9498922.055807e-07
1.763431.949752.098406e-07
1.770811.9496072.141183e-07
1.778221.9494642.184139e-07
1.785661.949322.227275e-07
1.793131.9491762.270591e-07
1.81.9490432.310400e-07
1.800641.9490312.317431e-07
1.808171.9488852.400679e-07
1.815741.9487392.484277e-07
1.823341.9485922.568224e-07
1.830971.9484452.652522e-07
1.838631.9482972.737173e-07
1.846331.9481482.822178e-07
1.854051.9479992.907540e-07
1.861811.9478492.993258e-07
1.86961.9476983.079335e-07
1.877431.9475463.165772e-07
1.885281.9473943.252571e-07
1.893171.9472413.339734e-07
1.90111.9470873.427261e-07
1.909051.9469333.515154e-07
1.917041.9467783.603415e-07
1.925061.9466223.692046e-07
1.933121.9464653.781047e-07
1.941211.9463083.870421e-07
1.949331.9461493.960169e-07
1.957491.945994.050292e-07
1.965681.945834.140793e-07
1.973911.9456694.231672e-07
1.982171.9455084.322932e-07
1.990471.9453454.414574e-07
1.99881.9451824.506599e-07
21.9451584.519900e-07
2.007161.9450174.706035e-07
2.015561.9448524.924376e-07
2.0241.9446865.143630e-07
2.032471.9445195.363802e-07
2.040971.9443515.584896e-07
2.049511.9441825.806915e-07
2.058091.9440126.029862e-07

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
—