Optical constants

Refractive index of J-LASFH24HS (HIKARI)

J-LASFH24HS: 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
1.90199
Extinction coefficient k
6.44900e-08
Permittivity ε1
3.61758
Permittivity ε2
2.45319e-07
Absorption coefficient α
0.0137918 cm⁻¹
Penetration depth δ = λ/(2πk)
1.45014e+09 nm
Abbe number Vd
25.263
Chromatic dispersion dn/dλ
-0.178487 µm⁻¹
Group index ng
2.00687
Group velocity dispersion
370.266 fs²/mm
Dispersion parameter D
-2020 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-LASFH24HS (HIKARI): J-LASFH24HS
mat = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASFH24HS", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mat.range_nm)  # (388.865, 2058.09) 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.

Dispersion formula

Polynomial (formula 3), λ in µm
n2=3.45215485−0.0140748042⁢λ2.0+0.0502420375⁢λ−2.0+0.00357942817⁢λ−4.0−0.000494644665⁢λ−6.0+0.000129480898⁢λ−8.0−1.35467075×10-5⁢λ−10.0+6.96875364×10-7⁢λ−12.0

Valid from 0.388865 to 2.05809 µm.

Coefficients as stored
CiValue
C13.45215485
C2-0.0140748042
C32.0
C40.0502420375
C5-2.0
C60.00357942817
C7-4.0
C8-0.000494644665
C9-6.0
C100.000129480898
C11-8.0
C12-1.35467075e-05
C13-10.0
C146.96875364e-07
C15-12.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: -3.8315e-06 9.6446e-09 -1.07e-12 1.0692e-06 1.6653e-09 0.28647
nd
1.902000
Vd
25.263033
density
value: 4100
thermal expansion
value: 7.7e-06, temperature range: 243 343

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = -3.25e-07 K⁻¹ at 633 nm, dn/dT = -2.10e-06 K⁻¹ at 1310 nm, dn/dT = -2.22e-06 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-LASFH24HS (HIKARI), J-LASFH24HS: n and k versus wavelength
λ (µm)nk
0.3888651.9825121.350715e-06
0.391.9814861.196900e-06
0.3904921.9810451.172941e-06
0.3921271.9796021.093420e-06
0.3937681.9781831.013566e-06
0.3954151.9767859.333782e-07
0.397071.975418.528547e-07
0.3987321.9740577.719942e-07
0.41.9730417.102900e-07
0.4004011.9727247.029673e-07
0.4020761.9714116.723389e-07
0.4037591.9701196.415824e-07
0.4054491.9688466.106972e-07
0.4071451.9675915.796828e-07
0.4088491.9663565.485385e-07
0.410561.9651385.172639e-07
0.4122781.9639394.858585e-07
0.4140041.9627564.543216e-07
0.4157361.9615914.226527e-07
0.4174761.9604423.908513e-07
0.4192231.959313.589168e-07
0.421.9588133.447200e-07
0.4209781.9581933.384591e-07
0.4227391.9570923.271777e-07
0.4245091.9560073.158490e-07
0.4262851.9549363.044730e-07
0.4280691.953882.930493e-07
0.4298611.9528382.815779e-07
0.431661.951812.700584e-07
0.4334661.9507962.584907e-07
0.435281.9497962.468746e-07
0.4371021.9488092.352099e-07
0.4389311.9478352.234964e-07
0.441.9472732.166500e-07
0.4407681.9468732.143629e-07
0.4426121.9459242.088679e-07
0.4444651.9449882.033499e-07
0.4463251.9440631.978088e-07
0.4481931.9431511.922445e-07
0.4500681.942251.866570e-07
0.4519521.941361.810460e-07
0.4538431.9404821.754116e-07
0.4557421.9396141.697536e-07
0.457651.9387581.640719e-07
0.4595651.9379121.583664e-07
0.461.9377221.570700e-07
0.4614881.9370771.549205e-07
0.4634191.9362521.521307e-07
0.4653591.9354361.493293e-07
0.4673061.9346311.465162e-07
0.4692621.9338361.436912e-07
0.4712261.933051.408545e-07
0.4731981.9322741.380059e-07
0.4751781.9315071.351453e-07
0.4771671.9307491.322728e-07
0.4791641.9300011.293883e-07
0.481.929691.281800e-07
0.4811691.9292611.268148e-07
0.4831821.9285291.244629e-07
0.4852051.9278071.221011e-07
0.4872351.9270921.197294e-07
0.4892741.9263861.173478e-07
0.4913221.9256881.149563e-07
0.4933781.9249991.125547e-07
0.4954431.9243171.101431e-07
0.4975161.9236431.077213e-07
0.4995981.9229761.052895e-07
0.51.9228491.048200e-07
0.5016891.9223171.036640e-07
0.5037881.9216661.022268e-07
0.5058971.9210221.007836e-07
0.5080141.9203859.933438e-08
0.510141.9197559.787909e-08
0.5122751.9191339.641771e-08
0.5144191.9185179.495021e-08
0.5165711.9179089.347658e-08
0.5187331.9173069.199677e-08
0.5209041.916719.051077e-08
0.5230841.9161218.901856e-08
0.5252731.9155388.752010e-08
0.5274711.9149618.601537e-08
0.5296791.9143918.450434e-08
0.5318951.9138278.298698e-08
0.5341211.9132698.146328e-08
0.5363571.9127177.993320e-08
0.5386011.9121717.839672e-08
0.5408551.911637.685381e-08
0.5431191.9110967.530444e-08
0.5453921.9105677.374858e-08
0.5476741.9100437.218622e-08
0.5499661.9095257.061732e-08
0.551.9095187.059400e-08
0.5522681.9090137.022589e-08
0.5545791.9085066.985069e-08
0.55691.9080046.947392e-08
0.559231.9075076.909558e-08
0.561571.9070166.871565e-08
0.5639211.9065296.833413e-08
0.5662811.9060476.795101e-08
0.568651.9055716.756629e-08
0.571031.9050996.717996e-08
0.573421.9046326.679201e-08
0.575821.904176.640244e-08
0.5782291.9037126.601124e-08
0.5806491.9032596.561840e-08
0.5830791.9028116.522392e-08
0.5855191.9023676.482779e-08
0.587971.9019276.443000e-08
0.590431.9014926.403054e-08
0.5929011.9010616.362941e-08
0.5953821.9006356.322661e-08
0.5978741.9002126.282212e-08
0.61.8998576.247700e-08
0.6003761.8997946.239807e-08
0.6028891.899386.187089e-08
0.6054121.898976.134151e-08
0.6079451.8985646.080991e-08
0.610491.8981616.027608e-08
0.6130441.8977635.974002e-08
0.615611.8973695.920172e-08
0.6181861.8969785.866116e-08
0.6207731.8965915.811834e-08
0.6233711.8962085.757326e-08
0.625981.8958285.702589e-08
0.62861.8954525.647622e-08
0.631231.895085.592426e-08
0.6338721.8947115.536999e-08
0.6365251.8943465.481340e-08
0.6391881.8939845.425448e-08
0.6418631.8936255.369322e-08
0.644551.893275.312961e-08
0.6472471.8929185.256364e-08
0.6499561.8925695.199531e-08
0.651.8925645.198600e-08
0.6526761.8922245.099799e-08
0.6554071.8918824.998939e-08
0.658151.8915434.897658e-08
0.6609041.8912074.795952e-08
0.663671.8908744.693821e-08
0.6664471.8905444.591262e-08
0.6692361.8902174.488274e-08
0.6720371.8898934.384855e-08
0.674851.8895724.281004e-08
0.6776741.8892544.176717e-08
0.680511.8889394.071995e-08
0.6833581.8886263.966834e-08
0.6862171.8883173.861233e-08
0.6890891.888013.755190e-08
0.6919731.8877053.648703e-08
0.6948691.8874043.541771e-08
0.6977771.8871053.434391e-08
0.71.8868793.352300e-08
0.7006971.8868093.337817e-08
0.7036291.8865153.276888e-08
0.7065741.8862243.215705e-08
0.7095311.8859363.154265e-08
0.71251.885653.092568e-08
0.7154821.8853663.030613e-08
0.7184761.8850852.968399e-08
0.7214831.8848062.905924e-08
0.7245021.884532.843188e-08
0.7275341.8842562.780189e-08
0.7305791.8839852.716927e-08
0.7336371.8837152.653400e-08
0.7367071.8834482.589607e-08
0.739791.8831832.525547e-08
0.7428861.8829212.461219e-08
0.7459951.882662.396622e-08
0.7491171.8824022.331754e-08
0.7522521.8821462.266615e-08
0.75541.8818922.201204e-08
0.7585611.881642.135519e-08
0.7617361.8813912.069558e-08
0.7649231.8811432.003322e-08
0.7681251.8808971.936809e-08
0.7713391.8806531.870017e-08
0.7745671.8804121.802945e-08
0.7778091.8801721.735593e-08
0.7810641.8799341.667960e-08
0.7843321.8796981.600043e-08
0.7876151.8794641.531842e-08
0.7909111.8792311.463355e-08
0.7942211.8790011.394582e-08
0.7975441.8787721.325521e-08
0.81.8786051.274500e-08
0.8008821.8785461.282239e-08
0.8042341.8783211.311643e-08
0.8075991.8780971.341170e-08
0.8109791.8778761.370820e-08
0.8143731.8776561.400595e-08
0.8177811.8774381.430494e-08
0.8212041.8772211.460518e-08
0.824641.8770061.490668e-08
0.8280911.8767931.520945e-08
0.8315571.8765811.551347e-08
0.8350371.8763711.581877e-08
0.8385311.8761631.612535e-08
0.8420411.8759561.643321e-08
0.8455641.875751.674236e-08
0.8491031.8755461.705281e-08
0.8526561.8753441.736455e-08
0.8562251.8751431.767760e-08
0.8598081.8749431.799196e-08
0.8634061.8747451.830763e-08
0.867021.8745491.862462e-08
0.8706481.8743541.894294e-08
0.8742921.874161.926260e-08
0.877951.8739671.958359e-08
0.8816251.8737761.990592e-08
0.8853141.8735862.022960e-08
0.8890191.8733982.055464e-08
0.892741.873212.088104e-08
0.8964761.8730252.120880e-08
0.91.8728512.151800e-08
0.9002271.872842.157793e-08
0.9039951.8726562.257147e-08
0.9077781.8724742.356916e-08
0.9115771.8722932.457103e-08
0.9153921.8721132.557709e-08
0.9192231.8719352.658736e-08
0.9230691.8717572.760186e-08
0.9269321.8715812.862060e-08
0.9308121.8714062.964361e-08
0.9347071.8712323.067090e-08
0.9386191.8710593.170249e-08
0.9425471.8708873.273839e-08
0.9464911.8707173.377863e-08
0.9504521.8705473.482323e-08
0.954431.8703783.587219e-08
0.9584241.8702113.692555e-08
0.9624351.8700443.798331e-08
0.9664631.8698783.904550e-08
0.9705071.8697144.011213e-08
0.9745691.869554.118323e-08
0.9786471.8693884.225881e-08
0.9827431.8692264.333890e-08
0.9868551.8690654.442350e-08
0.9909851.8689054.551264e-08
0.9951321.8687464.660634e-08
0.9992971.8685884.770462e-08
11.8685624.789000e-08
1.003481.8684314.855872e-08
1.007681.8682754.936593e-08
1.01191.868125.017651e-08
1.016131.8679655.099048e-08
1.020381.8678115.180787e-08
1.024651.8676585.262867e-08
1.028941.8675065.345290e-08
1.033251.8673555.428059e-08
1.037571.8672045.511174e-08
1.041911.8670545.594637e-08
1.046271.8669055.678449e-08
1.050651.8667575.762612e-08
1.055051.8666095.847127e-08
1.059461.8664635.931995e-08
1.06391.8663166.017219e-08
1.068351.8661716.102800e-08
1.072821.8660266.188739e-08
1.077311.8658826.275037e-08
1.081821.8657396.361697e-08
1.086351.8655966.448719e-08
1.090891.8654536.536105e-08
1.095461.8653126.623857e-08
1.100041.8651716.711976e-08
1.104651.8650316.800465e-08
1.109271.8648916.889323e-08
1.113911.8647526.978553e-08
1.118571.8646137.068157e-08
1.123251.8644757.158136e-08
1.127961.8643377.248491e-08
1.132681.86427.339224e-08
1.137421.8640647.430337e-08
1.142181.8639287.521832e-08
1.146961.8637937.613709e-08
1.151761.8636587.705971e-08
1.156581.8635237.798618e-08
1.161421.8633897.891654e-08
1.166281.8632557.985079e-08
1.171161.8631228.078895e-08
1.176061.862998.173103e-08
1.180981.8628578.267706e-08
1.185921.8627258.362705e-08
1.190891.8625948.458101e-08
1.195871.8624638.553897e-08
1.21.8623558.633300e-08
1.200871.8623328.649418e-08
1.20591.8622028.742132e-08
1.210951.8620728.835234e-08
1.216011.8619428.928726e-08
1.22111.8618139.022609e-08
1.226211.8616849.116885e-08
1.231341.8615569.211555e-08
1.23651.8614279.306622e-08
1.241671.8612999.402087e-08
1.246871.8611729.497951e-08
1.252091.8610449.594216e-08
1.257331.8609179.690884e-08
1.262591.860799.787957e-08
1.267871.8606649.885436e-08
1.273181.8605379.983322e-08
1.278511.8604111.008162e-07
1.283861.8602851.018033e-07
1.289231.8601591.027945e-07
1.294621.8600341.037898e-07
1.300041.8599081.047894e-07
1.305481.8597831.057931e-07
1.310951.8596581.068010e-07
1.316431.8595341.078131e-07
1.321941.8594091.088295e-07
1.327471.8592841.098501e-07
1.333031.859161.108750e-07
1.338611.8590361.119041e-07
1.344211.8589121.129376e-07
1.349841.8587881.139754e-07
1.355481.8586641.150176e-07
1.361161.858541.160641e-07
1.366851.8584161.171150e-07
1.372571.8582931.181702e-07
1.378321.8581691.192300e-07
1.384091.8580451.202941e-07
1.389881.8579221.213627e-07
1.395691.8577981.224357e-07
1.41.8577071.232300e-07
1.401541.8576751.236621e-07
1.40741.8575511.253126e-07
1.413291.8574281.269700e-07
1.419211.8573051.286344e-07
1.425141.8571811.303057e-07
1.431111.8570581.319840e-07
1.43711.8569341.336693e-07
1.443111.856811.353617e-07
1.449151.8566871.370612e-07
1.455221.8565631.387678e-07
1.461311.8564391.404815e-07
1.467421.8563161.422024e-07
1.473561.8561921.439305e-07
1.479731.8560681.456658e-07
1.485921.8559441.474084e-07
1.492141.8558191.491582e-07
1.498381.8556951.509154e-07
1.504661.8555711.526800e-07
1.510951.8554461.544519e-07
1.517281.8553211.562313e-07
1.523631.8551961.580181e-07
1.531.8550711.598124e-07
1.53641.8549461.616142e-07
1.542831.854821.634235e-07
1.549291.8546951.652404e-07
1.555771.8545691.670649e-07
1.562291.8544431.688970e-07
1.568821.8543161.707368e-07
1.575391.854191.725843e-07
1.581981.8540631.744396e-07
1.58861.8539361.763026e-07
1.595251.8538081.781734e-07
1.61.8537181.795100e-07
1.601931.8536811.793071e-07
1.608631.8535531.786008e-07
1.615361.8534251.778916e-07
1.622121.8532961.771794e-07
1.628911.8531671.764643e-07
1.635731.8530381.757461e-07
1.642571.8529091.750249e-07
1.649451.8527791.743008e-07
1.656351.8526491.735735e-07
1.663281.8525181.728433e-07
1.670241.8523871.721100e-07
1.677231.8522561.713736e-07
1.684251.8521251.706341e-07
1.69131.8519931.698916e-07
1.698381.851861.691459e-07
1.705491.8517271.683971e-07
1.712621.8515941.676452e-07
1.719791.851461.668902e-07
1.726991.8513261.661319e-07
1.734211.8511911.653705e-07
1.741471.8510561.646059e-07
1.748761.8509211.638382e-07
1.756081.8507851.630672e-07
1.763431.8506481.622929e-07
1.770811.8505111.615155e-07
1.778221.8503741.607348e-07
1.785661.8502351.599508e-07
1.793131.8500971.591635e-07
1.81.8499691.584400e-07
1.800641.8499581.590624e-07
1.808171.8498181.664326e-07
1.815741.8496781.738335e-07
1.823341.8495371.812655e-07
1.830971.8493951.887285e-07
1.838631.8492531.962228e-07
1.846331.8491112.037484e-07
1.854051.8489672.113056e-07
1.861811.8488232.188943e-07
1.86961.8486792.265148e-07
1.877431.8485342.341673e-07
1.885281.8483882.418517e-07
1.893171.8482412.495683e-07
1.90111.8480942.573172e-07
1.909051.8479462.650985e-07
1.917041.8477982.729124e-07
1.925061.8476482.807589e-07
1.933121.8474982.886384e-07
1.941211.8473482.965507e-07
1.949331.8471963.044963e-07
1.957491.8470443.124750e-07
1.965681.8468913.204872e-07
1.973911.8467373.285328e-07
1.982171.8465823.366122e-07
1.990471.8464273.447253e-07
1.99881.8462713.528724e-07
21.8462483.540500e-07
2.007161.8461143.702349e-07
2.015561.8459563.892202e-07
2.0241.8457974.082849e-07
2.032471.8456384.274294e-07
2.040971.8454774.466541e-07
2.049511.8453164.659591e-07
2.058091.8451544.853450e-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
—