Optical constants

Refractive index of J-F2 (HIKARI)

J-F2: n,k 0.365–2.058 µm

Data
formula 3 + tabulated k
Range
0.365–2.058 µm
Temperature
296 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–2.058 µm
Refractive index n
1.62004
Extinction coefficient k
3.39405e-08
Permittivity ε1
2.62452
Permittivity ε2
1.09970e-07
Absorption coefficient α
0.00725849 cm⁻¹
Penetration depth δ = λ/(2πk)
2.75539e+09 nm
Abbe number Vd
36.397
Chromatic dispersion dn/dλ
-0.0862941 µm⁻¹
Group index ng
1.67074
Group velocity dispersion
167.289 fs²/mm
Dispersion parameter D
-912.651 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-F2 (HIKARI): J-F2
hikari_j_f2 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-F2", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_f2.range_nm)  # (365.015, 2058.09) nm
eps = hikari_j_f2.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=2.55848782−0.0111821288⁢λ2.0+0.0203054502⁢λ−2.0+0.00204096825⁢λ−4.0−0.000437338902⁢λ−6.0+8.55288881×10-5⁢λ−8.0−7.9676939×10-6⁢λ−10.0+3.26555576×10-7⁢λ−12.0

Valid from 0.365015 to 2.05809 µm.

Coefficients as stored
CiValue
C12.55848782
C2-0.0111821288
C32.0
C40.0203054502
C5-2.0
C60.00204096825
C7-4.0
C8-0.000437338902
C9-6.0
C108.55288881e-05
C11-8.0
C12-7.9676939e-06
C13-10.0
C143.26555576e-07
C15-12.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 6.2381e-07 1.1572e-08 -1.0539e-12 7.8573e-07 1.16e-09 0.26393
nd
1.620040
Vd
36.396775
density
value: 2660
thermal expansion
value: 7.3e-06, temperature range: 243 343
dPgF
0.0045
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 1.50e-06 K⁻¹ at 633 nm, dn/dT = 5.35e-07 K⁻¹ at 1310 nm, dn/dT = 4.64e-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 421 wavelengths, the same grid as the API and the library
J-F2 (HIKARI), J-F2: n and k versus wavelength
λ (µm)nk
0.3650151.6671784.974640e-06
0.3666011.6663634.323420e-06
0.3681931.6655623.669372e-06
0.3697931.6647743.012482e-06
0.371.6646732.927400e-06
0.3713991.6639992.687225e-06
0.3730131.6632362.410293e-06
0.3746331.6624862.132159e-06
0.3762611.6617481.852815e-06
0.3778951.6610211.572259e-06
0.3795371.6603061.290483e-06
0.381.6601061.211000e-06
0.3811861.6596011.131570e-06
0.3828421.6589071.020639e-06
0.3845051.6582249.092260e-07
0.3861751.6575517.973290e-07
0.3878531.6568886.849458e-07
0.3895381.6562345.720745e-07
0.391.6560575.411100e-07
0.391231.655595.106180e-07
0.392931.6549554.684851e-07
0.3946371.6543294.261691e-07
0.3963511.6537123.836693e-07
0.3980731.6531043.409848e-07
0.3998021.6525042.981149e-07
0.41.6524362.932100e-07
0.4015391.6519132.803442e-07
0.4032831.6513292.657612e-07
0.4050351.6507542.511148e-07
0.4067951.6501862.364048e-07
0.4085621.6496262.216309e-07
0.4103371.6490732.067928e-07
0.412121.6485281.918903e-07
0.413911.6479891.769230e-07
0.4157081.6474581.618907e-07
0.4175141.6469341.467931e-07
0.4193281.6464161.316300e-07
0.421.6462271.260100e-07
0.4211491.6459051.236565e-07
0.4229791.6454011.199104e-07
0.4248171.6449031.161480e-07
0.4266621.6444111.123692e-07
0.4285161.6439261.085740e-07
0.4303771.6434461.047624e-07
0.4322471.6429731.009341e-07
0.4341251.6425059.708930e-08
0.436011.6420439.322774e-08
0.4379051.6415878.934942e-08
0.4398071.6411368.545424e-08
0.441.6410918.505900e-08
0.4417181.6406918.346430e-08
0.4436371.6402518.168267e-08
0.4455641.6398167.989331e-08
0.4474991.6393867.809617e-08
0.4494431.6389627.629122e-08
0.4513961.6385437.447844e-08
0.4533571.6381287.265777e-08
0.4553261.6377197.082920e-08
0.4573041.6373146.899269e-08
0.4592911.6369146.714819e-08
0.461.6367726.649000e-08
0.4612861.6365186.592658e-08
0.463291.6361276.504885e-08
0.4653031.6357416.416732e-08
0.4673241.6353596.328195e-08
0.4693541.6349816.239274e-08
0.4713931.6346086.149966e-08
0.4734411.6342386.060271e-08
0.4754981.6338735.970185e-08
0.4775641.6335125.879709e-08
0.4796381.6331555.788839e-08
0.481.6330945.773000e-08
0.4817221.6328025.689524e-08
0.4838151.6324535.588080e-08
0.4859171.6321085.486195e-08
0.4880271.6317675.383868e-08
0.4901481.6314295.281096e-08
0.4922771.6310955.177877e-08
0.4944151.6307645.074210e-08
0.4965631.6304374.970093e-08
0.4987211.6301144.865523e-08
0.51.6299254.803500e-08
0.5008871.6297944.780649e-08
0.5030631.6294784.724596e-08
0.5052481.6291644.668299e-08
0.5074431.6288554.611758e-08
0.5096481.6285484.554972e-08
0.5118621.6282454.497938e-08
0.5140861.6279454.440657e-08
0.5163191.6276484.383127e-08
0.5185621.6273544.325347e-08
0.5208151.6270634.267316e-08
0.5230771.6267754.209033e-08
0.5253491.626494.150497e-08
0.5276321.6262084.091706e-08
0.5299241.6259294.032660e-08
0.5322261.6256533.973358e-08
0.5345381.6253793.913798e-08
0.536861.6251083.853979e-08
0.5391931.624843.793900e-08
0.5415351.6245753.733561e-08
0.5438871.6243123.672959e-08
0.546251.6240523.612094e-08
0.5486231.6237953.550964e-08
0.551.6236473.515500e-08
0.5510071.623543.512249e-08
0.55341.6232883.504517e-08
0.5558041.6230383.496752e-08
0.5582191.622793.488953e-08
0.5606441.6225453.481120e-08
0.563081.6223023.473253e-08
0.5655261.6220623.465352e-08
0.5679821.6218243.457417e-08
0.570451.6215883.449447e-08
0.5729281.6213553.441442e-08
0.5754171.6211243.433403e-08
0.5779171.6208953.425329e-08
0.5804271.6206683.417219e-08
0.5829491.6204433.409075e-08
0.5854811.6202213.400895e-08
0.5880251.623.392680e-08
0.5905791.6197823.384429e-08
0.5931451.6195653.376142e-08
0.5957221.6193513.367819e-08
0.598311.6191383.359460e-08
0.61.6190013.354000e-08
0.6009091.6189283.368555e-08
0.6035191.618723.410359e-08
0.6061411.6185133.452345e-08
0.6087741.6183083.494514e-08
0.6114191.6181053.536865e-08
0.6140751.6179043.579401e-08
0.6167431.6177053.622121e-08
0.6194221.6175083.665027e-08
0.6221131.6173123.708119e-08
0.6248161.6171183.751399e-08
0.627531.6169263.794866e-08
0.6302561.6167363.838523e-08
0.6329941.6165473.882369e-08
0.6357441.616363.926405e-08
0.6385061.6161753.970633e-08
0.641281.6159914.015053e-08
0.6440661.6158094.059666e-08
0.6468641.6156284.104473e-08
0.6496741.6154494.149474e-08
0.651.6154284.154700e-08
0.6524961.6152714.170654e-08
0.6553311.6150954.188773e-08
0.6581781.6149214.206971e-08
0.6610371.6147484.225247e-08
0.6639081.6145764.243603e-08
0.6667931.6144064.262039e-08
0.6696891.6142374.280554e-08
0.6725991.614074.299151e-08
0.6755211.6139044.317827e-08
0.6784551.613744.336586e-08
0.6814031.6135774.355425e-08
0.6843631.6134154.374347e-08
0.6873361.6132554.393350e-08
0.6903221.6130964.412436e-08
0.6933211.6129384.431605e-08
0.6963331.6127814.450858e-08
0.6993581.6126264.470194e-08
0.71.6125934.474300e-08
0.7023961.6124724.551236e-08
0.7054471.6123194.649224e-08
0.7085121.6121674.747639e-08
0.711591.6120174.846481e-08
0.7146811.6118684.945752e-08
0.7177861.611725.045455e-08
0.7209041.6115735.145590e-08
0.7240361.6114275.246161e-08
0.7271811.6112835.347169e-08
0.730341.6111395.448615e-08
0.7335131.6109975.550502e-08
0.73671.6108565.652832e-08
0.73991.6107155.755606e-08
0.7431141.6105765.858827e-08
0.7463421.6104385.962496e-08
0.7495851.6103016.066616e-08
0.7528411.6101656.171187e-08
0.7561121.610036.276214e-08
0.7593961.6098966.381696e-08
0.7626951.6097636.487637e-08
0.7660091.609636.594038e-08
0.7693361.6094996.700901e-08
0.7726791.6093696.808228e-08
0.7760351.609246.916022e-08
0.7794071.6091117.024283e-08
0.7827931.6089847.133016e-08
0.7861931.6088577.242220e-08
0.7896091.6087317.351899e-08
0.7930391.6086077.462055e-08
0.7964841.6084837.572689e-08
0.7999441.6083597.683803e-08
0.81.6083577.685600e-08
0.8034191.6082377.520963e-08
0.8069091.6081157.352904e-08
0.8104151.6079957.184115e-08
0.8139351.6078757.014593e-08
0.8174711.6077566.844335e-08
0.8210231.6076376.673337e-08
0.8245891.607526.501596e-08
0.8281721.6074036.329109e-08
0.8317691.6072876.155873e-08
0.8353831.6071715.981884e-08
0.8390121.6070575.807139e-08
0.8426571.6069435.631635e-08
0.8463171.606835.455369e-08
0.8499941.6067175.278337e-08
0.8536871.6066055.100536e-08
0.8573951.6064944.921963e-08
0.861121.6063834.742613e-08
0.8648611.6062744.562485e-08
0.8686181.6061644.381574e-08
0.8723911.6060564.199877e-08
0.8761811.6059484.017391e-08
0.8799881.605843.834112e-08
0.8838111.6057333.650037e-08
0.887651.6056273.465162e-08
0.8915061.6055213.279484e-08
0.8953791.6054163.093000e-08
0.8992691.6053122.905705e-08
0.91.6052922.870500e-08
0.9031751.6052082.880630e-08
0.9070991.6051042.893146e-08
0.911041.6050022.905717e-08
0.9149981.6048992.918342e-08
0.9189721.6047972.931022e-08
0.9229651.6046962.943757e-08
0.9269741.6045952.956548e-08
0.9310011.6044952.969394e-08
0.9350461.6043952.982296e-08
0.9391081.6042952.995254e-08
0.9431881.6041963.008268e-08
0.9472851.6040983.021339e-08
0.95141.6043.034467e-08
0.9555331.6039023.047651e-08
0.9596841.6038053.060893e-08
0.9638531.6037083.074193e-08
0.9680411.6036123.087550e-08
0.9722461.6035163.100965e-08
0.976471.603423.114438e-08
0.9807121.6033253.127970e-08
0.9849721.603233.141561e-08
0.9892511.6031353.155211e-08
0.9935491.6030413.168920e-08
0.9978651.6029473.182689e-08
11.6029013.189500e-08
1.00221.6028543.185976e-08
1.006551.6027613.179001e-08
1.010931.6026683.171996e-08
1.015321.6025763.164961e-08
1.019731.6024833.157894e-08
1.024161.6023913.150798e-08
1.028611.60233.143670e-08
1.033081.6022093.136512e-08
1.037561.6021183.129322e-08
1.042071.6020273.122101e-08
1.04661.6019363.114849e-08
1.051151.6018463.107565e-08
1.055711.6017563.100250e-08
1.06031.6016663.092902e-08
1.06491.6015773.085523e-08
1.069531.6014873.078112e-08
1.074181.6013983.070669e-08
1.078841.6013093.063193e-08
1.083531.601223.055685e-08
1.088241.6011323.048144e-08
1.092961.6010443.040571e-08
1.097711.6009553.032964e-08
1.102481.6008673.025325e-08
1.107271.600783.017652e-08
1.112081.6006923.009946e-08
1.116911.6006043.002206e-08
1.121761.6005172.994433e-08
1.126641.600432.986626e-08
1.131531.6003422.978786e-08
1.136451.6002552.970911e-08
1.141381.6001682.963002e-08
1.146341.6000822.955058e-08
1.151321.5999952.947080e-08
1.156321.5999082.939068e-08
1.161351.5998222.931020e-08
1.166391.5997352.922938e-08
1.171461.5996492.914821e-08
1.176551.5995622.906668e-08
1.181661.5994762.898480e-08
1.186791.599392.890256e-08
1.191951.5993032.881997e-08
1.197131.5992172.873701e-08
1.21.5991692.869100e-08
1.202331.5991313.031730e-08
1.207551.5990453.396542e-08
1.21281.5989593.762938e-08
1.218071.5988724.130926e-08
1.223361.5987864.500513e-08
1.228671.59874.871705e-08
1.234011.5986145.244510e-08
1.239371.5985275.618934e-08
1.244751.5984415.994985e-08
1.250161.5983556.372670e-08
1.255591.5982686.751995e-08
1.261051.5981827.132968e-08
1.266531.5980957.515597e-08
1.272031.5980097.899887e-08
1.277551.5979228.285847e-08
1.28311.5978358.673484e-08
1.288681.5977489.062804e-08
1.294281.5976619.453816e-08
1.29991.5975749.846527e-08
1.305551.5974871.024094e-07
1.311221.59741.063707e-07
1.316911.5973121.103492e-07
1.322641.5972251.143450e-07
1.328381.5971371.183582e-07
1.334151.5970491.223888e-07
1.339951.5969611.264369e-07
1.345771.5968731.305025e-07
1.351621.5967851.345859e-07
1.357491.5966961.386870e-07
1.363381.5966081.428059e-07
1.369311.5965191.469427e-07
1.375261.5964291.510974e-07
1.381231.596341.552702e-07
1.387231.5962511.594612e-07
1.393261.5961611.636703e-07
1.399311.5960711.678978e-07
1.41.5960611.683800e-07
1.405391.5959811.679848e-07
1.411491.595891.675369e-07
1.417631.5957991.670872e-07
1.423781.5957081.666354e-07
1.429971.5956171.661817e-07
1.436181.5955261.657261e-07
1.442421.5954341.652684e-07
1.448691.5953421.648088e-07
1.454981.5952491.643472e-07
1.46131.5951571.638836e-07
1.467651.5950641.634179e-07
1.474031.594971.629503e-07
1.480431.5948771.624806e-07
1.486861.5947831.620088e-07
1.493321.5946891.615350e-07
1.499811.5945941.610592e-07
1.506321.5944991.605813e-07
1.512871.5944031.601013e-07
1.519441.5943081.596192e-07
1.526041.5942121.591350e-07
1.532671.5941151.586488e-07
1.539331.5940181.581604e-07
1.546011.5939211.576699e-07
1.552731.5938231.571772e-07
1.559481.5937251.566825e-07
1.566251.5936271.561855e-07
1.573051.5935281.556865e-07
1.579891.5934281.551852e-07
1.586751.5933281.546818e-07
1.593641.5932281.541762e-07
1.61.5931351.537100e-07
1.600571.5931271.543868e-07
1.607521.5930261.626733e-07
1.61451.5929241.709959e-07
1.621521.5928221.793545e-07
1.628561.5927191.877495e-07
1.635641.5926161.961810e-07
1.642741.5925122.046491e-07
1.649881.5924082.131540e-07
1.657051.5923032.216958e-07
1.664251.5921982.302747e-07
1.671481.5920922.388909e-07
1.678741.5919862.475446e-07
1.686031.5918792.562358e-07
1.693351.5917712.649648e-07
1.700711.5916632.737317e-07
1.70811.5915552.825366e-07
1.715521.5914452.913799e-07
1.722971.5913353.002615e-07
1.730461.5912253.091818e-07
1.737971.5911143.181408e-07
1.745521.5910023.271387e-07
1.753111.590893.361757e-07
1.760721.5907773.452519e-07
1.768371.5906633.543676e-07
1.776051.5905483.635229e-07
1.783771.5904333.727180e-07
1.791521.5903183.819530e-07
1.79931.5902013.912281e-07
1.81.5901913.920600e-07
1.807121.5900844.030033e-07
1.814971.5899664.150720e-07
1.822851.5898484.271931e-07
1.830771.5897294.393668e-07
1.838731.5896094.515934e-07
1.846711.5894884.638731e-07
1.854741.5893664.762062e-07
1.862791.5892444.885929e-07
1.870891.5891215.010333e-07
1.879011.5889975.135278e-07
1.887181.5888735.260766e-07
1.895371.5887475.386799e-07
1.903611.5886215.513380e-07
1.911881.5884945.640510e-07
1.920181.5883665.768193e-07
1.928531.5882375.896431e-07
1.93691.5881086.025225e-07
1.945321.5879776.154579e-07
1.953771.5878466.284495e-07
1.962261.5877146.414975e-07
1.970781.5875816.546023e-07
1.979341.5874476.677639e-07
1.987941.5873126.809827e-07
1.996581.5871766.942590e-07
21.5871226.995200e-07
2.005251.5870397.399155e-07
2.013961.5869028.069262e-07
2.022711.5867638.742280e-07
2.03151.5866239.418221e-07
2.040321.5864831.009710e-06
2.049191.5863411.077893e-06
2.058091.5861981.146372e-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
—