Optical constants

Refractive index of J-LASFH17 (HIKARI)

J-LASFH17: 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
2.00068
Extinction coefficient k
4.52449e-08
Permittivity ε1
4.00273
Permittivity ε2
1.81041e-07
Absorption coefficient α
0.00967604 cm⁻¹
Penetration depth δ = λ/(2πk)
2.06696e+09 nm
Abbe number Vd
25.456
Chromatic dispersion dn/dλ
-0.196726 µm⁻¹
Group index ng
2.11628
Group velocity dispersion
406.553 fs²/mm
Dispersion parameter D
-2217.96 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-LASFH17 (HIKARI): J-LASFH17
hikari_j_lasfh17 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASFH17", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lasfh17.range_nm)  # (388.865, 2058.09) nm
eps = hikari_j_lasfh17.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=3.81071676−0.0163737936⁢λ2.0+0.0583672875⁢λ−2.0+0.00412726108⁢λ−4.0−0.000552229126⁢λ−6.0+0.000141302816⁢λ−8.0−1.45517862×10-5⁢λ−10.0+7.444268×10-7⁢λ−12.0

Valid from 0.388865 to 2.05809 µm.

Coefficients as stored
CiValue
C13.81071676
C2-0.0163737936
C32.0
C40.0583672875
C5-2.0
C60.00412726108
C7-4.0
C8-0.000552229126
C9-6.0
C100.000141302816
C11-8.0
C12-1.45517862e-05
C13-10.0
C147.444268e-07
C15-12.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 2.5238e-07 1.1713e-08 -1.0359e-12 1.1589e-06 1.6245e-09 0.2809
nd
2.000690
Vd
25.455728
density
value: 4690
thermal expansion
value: 6.8e-06, temperature range: 243 343
dPgF
0.0123
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 2.87e-06 K⁻¹ at 633 nm, dn/dT = 6.92e-07 K⁻¹ at 1310 nm, dn/dT = 5.39e-07 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-LASFH17 (HIKARI), J-LASFH17: n and k versus wavelength
λ (µm)nk
0.3888652.0888943.892508e-06
0.392.0877783.536300e-06
0.3904922.0872983.464670e-06
0.3921272.0857283.226929e-06
0.3937682.0841822.988193e-06
0.3954152.082662.748459e-06
0.397072.0811622.507720e-06
0.3987322.0796872.265975e-06
0.42.0785812.081500e-06
0.4004012.0782342.058179e-06
0.4020762.0768041.960634e-06
0.4037592.0753941.862682e-06
0.4054492.0740061.764319e-06
0.4071452.0726371.665545e-06
0.4088492.0712891.566357e-06
0.410562.069961.466754e-06
0.4122782.0686511.366735e-06
0.4140042.067361.266297e-06
0.4157362.0660871.165438e-06
0.4174762.0648321.064158e-06
0.4192232.0635959.624536e-07
0.422.0630529.172400e-07
0.4209782.0623758.962370e-07
0.4227392.0611728.583917e-07
0.4245092.0599858.203881e-07
0.4262852.0588147.822254e-07
0.4280692.0576597.439030e-07
0.4298612.056527.054202e-07
0.431662.0553956.667764e-07
0.4334662.0542866.279708e-07
0.435282.0531915.890029e-07
0.4371022.0521115.498719e-07
0.4389312.0510445.105771e-07
0.442.050434.876100e-07
0.4407682.0499924.804562e-07
0.4426122.0489534.632684e-07
0.4444652.0479274.460087e-07
0.4463252.0469154.286767e-07
0.4481932.0459154.112723e-07
0.4500682.0449283.937949e-07
0.4519522.0439533.762444e-07
0.4538432.042993.586205e-07
0.4557422.0420393.409229e-07
0.457652.04113.231511e-07
0.4595652.0401733.053050e-07
0.462.0399643.012500e-07
0.4614882.0392572.940128e-07
0.4634192.0383522.846199e-07
0.4653592.0374582.751878e-07
0.4673062.0365752.657162e-07
0.4692622.0357022.562049e-07
0.4712262.034842.466538e-07
0.4731982.0339882.370628e-07
0.4751782.0331472.274316e-07
0.4771672.0323152.177601e-07
0.4791642.0314932.080482e-07
0.482.0311522.039800e-07
0.4811692.030682.003439e-07
0.4831822.0298771.940794e-07
0.4852052.0290841.877887e-07
0.4872352.0282991.814717e-07
0.4892742.0275241.751282e-07
0.4913222.0267571.687582e-07
0.4933782.0261.623615e-07
0.4954432.025251.559381e-07
0.4975162.024511.494878e-07
0.4995982.0237771.430105e-07
0.52.0236371.417600e-07
0.5016892.0230531.392061e-07
0.5037882.0223371.360312e-07
0.5058972.0216291.328429e-07
0.5080142.0209291.296413e-07
0.510142.0202371.264264e-07
0.5122752.0195521.231979e-07
0.5144192.0188751.199560e-07
0.5165712.0182051.167005e-07
0.5187332.0175431.134313e-07
0.5209042.0168871.101485e-07
0.5230842.0162391.068520e-07
0.5252732.0155981.035416e-07
0.5274712.0149641.002174e-07
0.5296792.0143369.687928e-08
0.5318952.0137169.352719e-08
0.5341212.0131029.016107e-08
0.5363572.0124948.678087e-08
0.5386012.0118938.338652e-08
0.5408552.0112987.997797e-08
0.5431192.0107097.655515e-08
0.5453922.0101277.311801e-08
0.5476742.0095516.966648e-08
0.5499662.008986.620051e-08
0.552.0089726.614900e-08
0.5522682.0084166.488836e-08
0.5545792.0078586.360342e-08
0.55692.0073056.231311e-08
0.559232.0067586.101740e-08
0.561572.0062165.971627e-08
0.5639212.005685.840969e-08
0.5662812.005155.709764e-08
0.568652.0046255.578010e-08
0.571032.0041055.445705e-08
0.573422.0035915.312846e-08
0.575822.0030815.179432e-08
0.5782292.0025775.045458e-08
0.5806492.0020784.910925e-08
0.5830792.0015844.775828e-08
0.5855192.0010944.640166e-08
0.587972.000614.503936e-08
0.590432.000134.367135e-08
0.5929011.9996554.229763e-08
0.5953821.9991854.091815e-08
0.5978741.9987193.953291e-08
0.61.9983273.835100e-08
0.6003761.9982583.841430e-08
0.6028891.9978023.883705e-08
0.6054121.997353.926158e-08
0.6079451.9969023.968789e-08
0.610491.9964584.011597e-08
0.6130441.9960194.054585e-08
0.615611.9955844.097753e-08
0.6181861.9951534.141102e-08
0.6207731.9947274.184632e-08
0.6233711.9943044.228344e-08
0.625981.9938854.272239e-08
0.62861.9934714.316318e-08
0.631231.993064.360581e-08
0.6338721.9926534.405029e-08
0.6365251.992254.449664e-08
0.6391881.9918514.494485e-08
0.6418631.9914554.539494e-08
0.644551.9910634.584691e-08
0.6472471.9906754.630077e-08
0.6499561.990294.675653e-08
0.651.9902844.676400e-08
0.6526761.9899094.635548e-08
0.6554071.9895314.593845e-08
0.658151.9891574.551968e-08
0.6609041.9887864.509915e-08
0.663671.9884194.467686e-08
0.6664471.9880554.425281e-08
0.6692361.9876944.382698e-08
0.6720371.9873374.339936e-08
0.674851.9869824.296996e-08
0.6776741.9866314.253877e-08
0.680511.9862834.210576e-08
0.6833581.9859384.167095e-08
0.6862171.9855974.123431e-08
0.6890891.9852584.079585e-08
0.6919731.9849224.035555e-08
0.6948691.9845893.991342e-08
0.6977771.9842593.946943e-08
0.71.984013.913000e-08
0.7006971.9839323.921367e-08
0.7036291.9836083.956567e-08
0.7065741.9832873.991915e-08
0.7095311.9829684.027410e-08
0.71251.9826534.063054e-08
0.7154821.982344.098847e-08
0.7184761.9820294.134790e-08
0.7214831.9817224.170883e-08
0.7245021.9814164.207127e-08
0.7275341.9811144.243523e-08
0.7305791.9808144.280072e-08
0.7336371.9805174.316773e-08
0.7367071.9802224.353628e-08
0.739791.9799294.390637e-08
0.7428861.9796394.427801e-08
0.7459951.9793524.465120e-08
0.7491171.9790674.502596e-08
0.7522521.9787844.540229e-08
0.75541.9785044.578019e-08
0.7585611.9782254.615967e-08
0.7617361.9779494.654074e-08
0.7649231.9776764.692340e-08
0.7681251.9774044.730767e-08
0.7713391.9771354.769354e-08
0.7745671.9768684.808103e-08
0.7778091.9766034.847014e-08
0.7810641.9763414.886088e-08
0.7843321.976084.925325e-08
0.7876151.9758214.964727e-08
0.7909111.9755655.004294e-08
0.7942211.975315.044026e-08
0.7975441.9750585.083924e-08
0.81.9748735.113400e-08
0.8008821.9748075.099961e-08
0.8042341.9745595.048903e-08
0.8075991.9743124.997630e-08
0.8109791.9740674.946143e-08
0.8143731.9738244.894441e-08
0.8177811.9735834.842522e-08
0.8212041.9733444.790386e-08
0.824641.9731074.738031e-08
0.8280911.9728714.685458e-08
0.8315571.9726374.632664e-08
0.8350371.9724054.579650e-08
0.8385311.9721754.526414e-08
0.8420411.9719464.472955e-08
0.8455641.9717194.419272e-08
0.8491031.9714944.365365e-08
0.8526561.971274.311232e-08
0.8562251.9710484.256872e-08
0.8598081.9708284.202285e-08
0.8634061.9706094.147470e-08
0.867021.9703914.092425e-08
0.8706481.9701764.037149e-08
0.8742921.9699623.981643e-08
0.877951.9697493.925904e-08
0.8816251.9695383.869932e-08
0.8853141.9693283.813726e-08
0.8890191.969123.757284e-08
0.892741.9689133.700606e-08
0.8964761.9687073.643691e-08
0.91.9685153.590000e-08
0.9002271.9685033.592725e-08
0.9039951.96833.637896e-08
0.9077781.9680993.683256e-08
0.9115771.9678993.728805e-08
0.9153921.96773.774546e-08
0.9192231.9675033.820478e-08
0.9230691.9673073.866602e-08
0.9269321.9671123.912919e-08
0.9308121.9669193.959430e-08
0.9347071.9667264.006135e-08
0.9386191.9665354.053037e-08
0.9425471.9663454.100134e-08
0.9464911.9661574.147428e-08
0.9504521.9659694.194921e-08
0.954431.9657834.242612e-08
0.9584241.9655984.290502e-08
0.9624351.9654134.338593e-08
0.9664631.965234.386886e-08
0.9705071.9650484.435380e-08
0.9745691.9648684.484078e-08
0.9786471.9646884.532979e-08
0.9827431.9645094.582085e-08
0.9868551.9643314.631396e-08
0.9909851.9641554.680914e-08
0.9951321.9639794.730639e-08
0.9992971.9638044.780572e-08
11.9637754.789000e-08
1.003481.9636314.772273e-08
1.007681.9634584.752082e-08
1.01191.9632864.731806e-08
1.016131.9631154.711446e-08
1.020381.9629454.691000e-08
1.024651.9627764.670469e-08
1.028941.9626084.649851e-08
1.033251.9624414.629148e-08
1.037571.9622744.608358e-08
1.041911.9621094.587481e-08
1.046271.9619444.566516e-08
1.050651.961784.545464e-08
1.055051.9616174.524324e-08
1.059461.9614544.503095e-08
1.06391.9612934.481777e-08
1.068351.9611324.460371e-08
1.072821.9609724.438874e-08
1.077311.9608134.417288e-08
1.081821.9606544.395611e-08
1.086351.9604964.373844e-08
1.090891.9603394.351985e-08
1.095461.9601824.330035e-08
1.100041.9600274.307993e-08
1.104651.9598714.285859e-08
1.109271.9597174.263632e-08
1.113911.9595634.241313e-08
1.118571.959414.218900e-08
1.123251.9592574.196393e-08
1.127961.9591054.173791e-08
1.132681.9589534.151096e-08
1.137421.9588034.128305e-08
1.142181.9586524.105419e-08
1.146961.9585024.082437e-08
1.151761.9583534.059359e-08
1.156581.9582044.036184e-08
1.161421.9580564.012913e-08
1.166281.9579083.989544e-08
1.171161.9577613.966077e-08
1.176061.9576143.942512e-08
1.180981.9574683.918848e-08
1.185921.9573223.895086e-08
1.190891.9571773.871224e-08
1.195871.9570323.847262e-08
1.21.9569133.827400e-08
1.200871.9568883.825303e-08
1.20591.9567433.813239e-08
1.210951.95663.801125e-08
1.216011.9564563.788959e-08
1.22111.9563133.776744e-08
1.226211.9561713.764476e-08
1.231341.9560293.752158e-08
1.23651.9558873.739788e-08
1.241671.9557453.727366e-08
1.246871.9556043.714893e-08
1.252091.9554633.702367e-08
1.257331.9553223.689788e-08
1.262591.9551823.677157e-08
1.267871.9550423.664473e-08
1.273181.9549023.651736e-08
1.278511.9547633.638946e-08
1.283861.9546233.626102e-08
1.289231.9544843.613205e-08
1.294621.9543463.600253e-08
1.300041.9542073.587248e-08
1.305481.9540683.574188e-08
1.310951.953933.561073e-08
1.316431.9537923.547903e-08
1.321941.9536543.534678e-08
1.327471.9535173.521398e-08
1.333031.9533793.508063e-08
1.338611.9532423.494671e-08
1.344211.9531043.481224e-08
1.349841.9529673.467720e-08
1.355481.952833.454159e-08
1.361161.9526933.440542e-08
1.366851.9525563.426868e-08
1.372571.9524193.413137e-08
1.378321.9522833.399348e-08
1.384091.9521463.385502e-08
1.389881.9520093.371597e-08
1.395691.9518733.357635e-08
1.41.9517723.347300e-08
1.401541.9517363.400124e-08
1.40741.9515993.601882e-08
1.413291.9514633.804485e-08
1.419211.9513264.007935e-08
1.425141.951194.212237e-08
1.431111.9510534.417394e-08
1.43711.9509164.623410e-08
1.443111.950784.830287e-08
1.449151.9506435.038031e-08
1.455221.9505065.246644e-08
1.461311.9503695.456130e-08
1.467421.9502325.666492e-08
1.473561.9500955.877735e-08
1.479731.9499586.089862e-08
1.485921.949826.302877e-08
1.492141.9496836.516783e-08
1.498381.9495456.731584e-08
1.504661.9494086.947284e-08
1.510951.949277.163887e-08
1.517281.9491327.381397e-08
1.523631.9489937.599816e-08
1.531.9488557.819150e-08
1.53641.9487168.039402e-08
1.542831.9485778.260575e-08
1.549291.9484388.482674e-08
1.555771.9482998.705703e-08
1.562291.9481598.929664e-08
1.568821.948029.154563e-08
1.575391.947889.380404e-08
1.581981.9477399.607189e-08
1.58861.9475999.834923e-08
1.595251.9474581.006361e-07
1.61.9473571.022700e-07
1.601931.9473161.036504e-07
1.608631.9471751.084547e-07
1.615361.9470331.132792e-07
1.622121.9468911.181239e-07
1.628911.9467481.229888e-07
1.635731.9466051.278742e-07
1.642571.9464621.327799e-07
1.649451.9463181.377062e-07
1.656351.9461741.426531e-07
1.663281.946031.476207e-07
1.670241.9458851.526091e-07
1.677231.945741.576184e-07
1.684251.9455941.626486e-07
1.69131.9454481.676999e-07
1.698381.9453011.727723e-07
1.705491.9451541.778660e-07
1.712621.9450071.829809e-07
1.719791.9448591.881173e-07
1.726991.944711.932752e-07
1.734211.9445611.984546e-07
1.741471.9444112.036558e-07
1.748761.9442612.088786e-07
1.756081.9441112.141234e-07
1.763431.943962.193901e-07
1.770811.9438082.246788e-07
1.778221.9436562.299897e-07
1.785661.9435032.353228e-07
1.793131.9433492.406782e-07
1.81.9432082.456000e-07
1.800641.9431952.460488e-07
1.808171.9430412.513624e-07
1.815741.9428852.566984e-07
1.823341.9427292.620566e-07
1.830971.9425732.674373e-07
1.838631.9424152.728405e-07
1.846331.9422572.782663e-07
1.854051.9420992.837148e-07
1.861811.941942.891861e-07
1.86961.9417792.946803e-07
1.877431.9416193.001975e-07
1.885281.9414573.057378e-07
1.893171.9412953.113012e-07
1.90111.9411323.168880e-07
1.909051.9409683.224981e-07
1.917041.9408043.281318e-07
1.925061.9406393.337889e-07
1.933121.9404723.394698e-07
1.941211.9403063.451745e-07
1.949331.9401383.509030e-07
1.957491.9399693.566555e-07
1.965681.93983.624320e-07
1.973911.9396293.682327e-07
1.982171.9394583.740578e-07
1.990471.9392863.799071e-07
1.99881.9391133.857810e-07
21.9390883.866300e-07
2.007161.9389394.023051e-07
2.015561.9387654.206923e-07
2.0241.9385894.391564e-07
2.032471.9384124.576979e-07
2.040971.9382354.763169e-07
2.049511.9380564.950138e-07
2.058091.9378765.137890e-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
—