Optical constants

Refractive index of J-LASFH9 (HIKARI)

J-LASFH9: 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
1.90265
Extinction coefficient k
4.33699e-08
Permittivity ε1
3.62006
Permittivity ε2
1.65035e-07
Absorption coefficient α
0.00927505 cm⁻¹
Penetration depth δ = λ/(2πk)
2.15632e+09 nm
Abbe number Vd
35.725
Chromatic dispersion dn/dλ
-0.128268 µm⁻¹
Group index ng
1.97802
Group velocity dispersion
248.702 fs²/mm
Dispersion parameter D
-1356.8 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-LASFH9 (HIKARI): J-LASFH9
hikari_j_lasfh9 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASFH9", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lasfh9.range_nm)  # (365.015, 2058.09) nm
eps = hikari_j_lasfh9.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=3.49709032−0.0138248635⁢λ2.0−0.000132935974⁢λ4.0+0.0409278939⁢λ−2.0+0.000880758278⁢λ−4.0+8.93285504×10-5⁢λ−6.0−6.6176262×10-6⁢λ−8.0+6.24399823×10-7⁢λ−10.0

Valid from 0.365015 to 2.05809 µm.

Coefficients as stored
CiValue
C13.49709032
C2-0.0138248635
C32.0
C4-0.000132935974
C54.0
C60.0409278939
C7-2.0
C80.000880758278
C9-4.0
C108.93285504e-05
C11-6.0
C12-6.6176262e-06
C13-8.0
C146.24399823e-07
C15-10.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 1.6752e-06 1.8443e-08 -2.2337e-12 9.0625e-07 8.7173e-10 0.22109
nd
1.902650
Vd
35.725382
glass status
preferred
density
value: 5170
thermal expansion
value: 6.5e-06, temperature range: 243 343
dPgF
-0.0039
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 2.91e-06 K⁻¹ at 633 nm, dn/dT = 1.48e-06 K⁻¹ at 1310 nm, dn/dT = 1.37e-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 421 wavelengths, the same grid as the API and the library
J-LASFH9 (HIKARI), J-LASFH9: n and k versus wavelength
λ (µm)nk
0.3650151.9707072.964720e-06
0.3666011.9695892.670856e-06
0.3681931.9684862.375716e-06
0.3697931.96742.079293e-06
0.371.967262.040900e-06
0.3713991.9663281.912333e-06
0.3730131.9652711.764089e-06
0.3746331.9642291.615202e-06
0.3762611.9632011.465668e-06
0.3778951.9621871.315484e-06
0.3795371.9611861.164648e-06
0.381.9609071.122100e-06
0.3811861.96021.071165e-06
0.3828421.9592261.000030e-06
0.3845051.9582659.285860e-07
0.3861751.9573178.568316e-07
0.3878531.9563817.847654e-07
0.3895381.9554577.123861e-07
0.391.9552076.925300e-07
0.391231.9545466.618720e-07
0.392931.9536466.195096e-07
0.3946371.9527575.769632e-07
0.3963511.951885.342319e-07
0.3980731.9510154.913150e-07
0.3998021.950164.482117e-07
0.41.9500634.432800e-07
0.4015391.9493154.275578e-07
0.4032831.9484824.097373e-07
0.4050351.9476583.918393e-07
0.4067951.9468453.738635e-07
0.4085621.9460423.558097e-07
0.4103371.9452493.376774e-07
0.412121.9444653.194664e-07
0.413911.9436913.011762e-07
0.4157081.9429262.828066e-07
0.4175141.9421712.643572e-07
0.4193281.9414242.458276e-07
0.421.941152.389600e-07
0.4211491.9406862.342813e-07
0.4229791.9399572.268340e-07
0.4248171.9392372.193544e-07
0.4266621.9385252.118423e-07
0.4285161.9378222.042975e-07
0.4303771.9371271.967200e-07
0.4322471.9364391.891096e-07
0.4341251.935761.814661e-07
0.436011.9350891.737893e-07
0.4379051.9344251.660793e-07
0.4398071.9337691.583357e-07
0.441.9337031.575500e-07
0.4417181.933121.539190e-07
0.4436371.9324791.498624e-07
0.4455641.9318451.457882e-07
0.4474991.9312181.416962e-07
0.4494431.9305991.375865e-07
0.4513961.9299861.334590e-07
0.4533571.929381.293135e-07
0.4553261.928781.251500e-07
0.4573041.9281881.209684e-07
0.4592911.9276021.167687e-07
0.461.9273951.152700e-07
0.4612861.9270221.135727e-07
0.463291.9264491.109285e-07
0.4653031.9258821.082728e-07
0.4673241.9253211.056056e-07
0.4693541.9247661.029268e-07
0.4713931.9242171.002363e-07
0.4734411.9236759.753419e-08
0.4754981.9231389.482033e-08
0.4775641.9226069.209467e-08
0.4796381.9220818.935717e-08
0.481.921998.888000e-08
0.4817221.9215618.710131e-08
0.4838151.9210468.493975e-08
0.4859171.9205378.276879e-08
0.4880271.9200348.058841e-08
0.4901481.9195357.839855e-08
0.4922771.9190427.619918e-08
0.4944151.9185547.399026e-08
0.4965631.9180727.177174e-08
0.4987211.9175946.954358e-08
0.51.9173146.822200e-08
0.5008871.9171216.779205e-08
0.5030631.9166536.673740e-08
0.5052481.916196.567817e-08
0.5074431.9157326.461434e-08
0.5096481.9152786.354588e-08
0.5118621.9148296.247279e-08
0.5140861.9143846.139503e-08
0.5163191.9139456.031259e-08
0.5185621.9135095.922545e-08
0.5208151.9130785.813358e-08
0.5230771.9126515.703698e-08
0.5253491.9122295.593560e-08
0.5276321.9118115.482945e-08
0.5299241.9113975.371849e-08
0.5322261.9109875.260270e-08
0.5345381.9105815.148206e-08
0.536861.910185.035656e-08
0.5391931.9097824.922617e-08
0.5415351.9093884.809086e-08
0.5438871.9089984.695062e-08
0.546251.9086124.580544e-08
0.5486231.908234.465527e-08
0.551.908014.398800e-08
0.5510071.9078514.397145e-08
0.55341.9074764.393210e-08
0.5558041.9071054.389258e-08
0.5582191.9067374.385288e-08
0.5606441.9063734.381301e-08
0.563081.9060134.377297e-08
0.5655261.9056554.373276e-08
0.5679821.9053024.369237e-08
0.570451.9049514.365180e-08
0.5729281.9046054.361106e-08
0.5754171.9042614.357014e-08
0.5779171.903924.352905e-08
0.5804271.9035834.348777e-08
0.5829491.9032494.344632e-08
0.5854811.9029184.340469e-08
0.5880251.9025914.336287e-08
0.5905791.9022664.332088e-08
0.5931451.9019444.327870e-08
0.5957221.9016264.323633e-08
0.598311.901314.319379e-08
0.61.9011064.316600e-08
0.6009091.9009974.332633e-08
0.6035191.9006874.378682e-08
0.6061411.900384.424931e-08
0.6087741.9000764.471381e-08
0.6114191.8997754.518033e-08
0.6140751.8994764.564887e-08
0.6167431.899184.611945e-08
0.6194221.8988874.659208e-08
0.6221131.8985964.706675e-08
0.6248161.8983084.754349e-08
0.627531.8980234.802230e-08
0.6302561.897744.850319e-08
0.6329941.897464.898617e-08
0.6357441.8971824.947125e-08
0.6385061.8969074.995844e-08
0.641281.8966345.044774e-08
0.6440661.8963635.093917e-08
0.6468641.8960955.143273e-08
0.6496741.895835.192843e-08
0.651.8957995.198600e-08
0.6524961.8955665.246663e-08
0.6553311.8953055.301246e-08
0.6581781.8950465.356066e-08
0.6610371.894795.411124e-08
0.6639081.8945355.466422e-08
0.6667931.8942835.521959e-08
0.6696891.8940335.577738e-08
0.6725991.8937855.633759e-08
0.6755211.893545.690024e-08
0.6784551.8932965.746533e-08
0.6814031.8930545.803288e-08
0.6843631.8928155.860289e-08
0.6873361.8925775.917537e-08
0.6903221.8923425.975035e-08
0.6933211.8921086.032782e-08
0.6963331.8918776.090780e-08
0.6993581.8916476.149030e-08
0.71.8915996.161400e-08
0.7023961.8914196.228824e-08
0.7054471.8911936.314699e-08
0.7085121.8909696.400947e-08
0.711591.8907476.487569e-08
0.7146811.8905276.574568e-08
0.7177861.8903086.661945e-08
0.7209041.8900916.749701e-08
0.7240361.8898766.837839e-08
0.7271811.8896636.926359e-08
0.730341.8894517.015264e-08
0.7335131.8892417.104556e-08
0.73671.8890337.194235e-08
0.73991.8888267.284303e-08
0.7431141.8886217.374763e-08
0.7463421.8884187.465616e-08
0.7495851.8882167.556864e-08
0.7528411.8880167.648508e-08
0.7561121.8878177.740550e-08
0.7593961.887627.832992e-08
0.7626951.8874247.925836e-08
0.7660091.887238.019083e-08
0.7693361.8870378.112735e-08
0.7726791.8868468.206794e-08
0.7760351.8866568.301261e-08
0.7794071.8864688.396139e-08
0.7827931.8862818.491429e-08
0.7861931.8860958.587133e-08
0.7896091.8859118.683253e-08
0.7930391.8857288.779791e-08
0.7964841.8855478.876747e-08
0.7999441.8853668.974125e-08
0.81.8853638.975700e-08
0.8034191.8851878.840823e-08
0.8069091.885018.703144e-08
0.8104151.8848338.564866e-08
0.8139351.8846588.425988e-08
0.8174711.8844848.286506e-08
0.8210231.8843128.146418e-08
0.8245891.884148.005722e-08
0.8281721.883977.864415e-08
0.8317691.8838017.722493e-08
0.8353831.8836337.579956e-08
0.8390121.8834667.436799e-08
0.8426571.88337.293020e-08
0.8463171.8831367.148616e-08
0.8499941.8829727.003585e-08
0.8536871.882816.857924e-08
0.8573951.8826486.711631e-08
0.861121.8824886.564701e-08
0.8648611.8823296.417134e-08
0.8686181.8821716.268925e-08
0.8723911.8820136.120073e-08
0.8761811.8818575.970574e-08
0.8799881.8817025.820425e-08
0.8838111.8815485.669624e-08
0.887651.8813945.518168e-08
0.8915061.8812425.366054e-08
0.8953791.8810915.213280e-08
0.8992691.880945.059841e-08
0.91.8809125.031000e-08
0.9031751.8807915.125211e-08
0.9070991.8806425.241616e-08
0.911041.8804945.358527e-08
0.9149981.8803475.475947e-08
0.9189721.8802015.593876e-08
0.9229651.8800565.712317e-08
0.9269741.8799115.831273e-08
0.9310011.8797685.950746e-08
0.9350461.8796256.070738e-08
0.9391081.8794836.191251e-08
0.9431881.8793416.312288e-08
0.9472851.8792016.433850e-08
0.95141.8790616.555941e-08
0.9555331.8789226.678562e-08
0.9596841.8787846.801716e-08
0.9638531.8786466.925404e-08
0.9680411.8785097.049630e-08
0.9722461.8783737.174396e-08
0.976471.8782387.299704e-08
0.9807121.8781037.425556e-08
0.9849721.8779697.551954e-08
0.9892511.8778357.678902e-08
0.9935491.8777027.806402e-08
0.9978651.877577.934455e-08
11.8775057.997800e-08
1.00221.8774387.973041e-08
1.006551.8773077.924039e-08
1.010931.8771777.874824e-08
1.015321.8770477.825396e-08
1.019731.8769177.775752e-08
1.024161.8767897.725893e-08
1.028611.8766617.675818e-08
1.033081.8765337.625525e-08
1.037561.8764067.575013e-08
1.042071.8762797.524282e-08
1.04661.8761537.473331e-08
1.051151.8760277.422158e-08
1.055711.8759027.370763e-08
1.06031.8757777.319144e-08
1.06491.8756537.267302e-08
1.069531.8755297.215234e-08
1.074181.8754067.162940e-08
1.078841.8752837.110419e-08
1.083531.8751617.057669e-08
1.088241.8750397.004691e-08
1.092961.8749176.951482e-08
1.097711.8747966.898043e-08
1.102481.8746756.844371e-08
1.107271.8745546.790465e-08
1.112081.8744346.736326e-08
1.116911.8743146.681952e-08
1.121761.8741956.627341e-08
1.126641.8740766.572493e-08
1.131531.8739576.517407e-08
1.136451.8738396.462081e-08
1.141381.873726.406515e-08
1.146341.8736026.350708e-08
1.151321.8734856.294658e-08
1.156321.8733676.238365e-08
1.161351.873256.181827e-08
1.166391.8731336.125044e-08
1.171461.8730176.068014e-08
1.176551.8729016.010736e-08
1.181661.8727845.953210e-08
1.186791.8726685.895433e-08
1.191951.8725535.837406e-08
1.197131.8724375.779126e-08
1.21.8723735.746800e-08
1.202331.8723225.731880e-08
1.207551.8722075.698413e-08
1.21281.8720925.664800e-08
1.218071.8719775.631041e-08
1.223361.8718625.597135e-08
1.228671.8717485.563082e-08
1.234011.8716335.528881e-08
1.239371.8715195.494532e-08
1.244751.8714055.460033e-08
1.250161.8712915.425384e-08
1.255591.8711775.390585e-08
1.261051.8710635.355635e-08
1.266531.8709495.320533e-08
1.272031.8708355.285278e-08
1.277551.8707215.249870e-08
1.28311.8706085.214309e-08
1.288681.8704945.178593e-08
1.294281.870385.142721e-08
1.29991.8702675.106694e-08
1.305551.8701535.070511e-08
1.311221.870045.034170e-08
1.316911.8699264.997671e-08
1.322641.8698124.961014e-08
1.328381.8696994.924198e-08
1.334151.8695854.887221e-08
1.339951.8694714.850084e-08
1.345771.8693584.812786e-08
1.351621.8692444.775325e-08
1.357491.869134.737702e-08
1.363381.8690164.699916e-08
1.369311.8689024.661965e-08
1.375261.8687874.623849e-08
1.381231.8686734.585568e-08
1.387231.8685594.547121e-08
1.393261.8684444.508506e-08
1.399311.8683294.469724e-08
1.41.8683164.465300e-08
1.405391.8682144.689749e-08
1.411491.8680994.944058e-08
1.417631.8679845.199471e-08
1.423781.8678695.455994e-08
1.429971.8677535.713631e-08
1.436181.8676375.972388e-08
1.442421.8675216.232269e-08
1.448691.8674056.493278e-08
1.454981.8672896.755422e-08
1.46131.8671727.018704e-08
1.467651.8670557.283131e-08
1.474031.8669387.548706e-08
1.480431.866827.815434e-08
1.486861.8667038.083321e-08
1.493321.8665858.352373e-08
1.499811.8664668.622592e-08
1.506321.8663488.893986e-08
1.512871.8662299.166559e-08
1.519441.8661099.440316e-08
1.526041.865999.715262e-08
1.532671.865879.991403e-08
1.539331.865751.026874e-07
1.546011.8656291.054729e-07
1.552731.8655081.082704e-07
1.559481.8653861.110801e-07
1.566251.8652651.139020e-07
1.573051.8651421.167362e-07
1.579891.865021.195827e-07
1.586751.8648971.224415e-07
1.593641.8647731.253128e-07
1.61.8646591.279600e-07
1.600571.8646491.282940e-07
1.607521.8645251.323839e-07
1.61451.86441.364916e-07
1.621521.8642741.406171e-07
1.628561.8641491.447605e-07
1.635641.8640221.489220e-07
1.642741.8638951.531015e-07
1.649881.8637681.572992e-07
1.657051.863641.615151e-07
1.664251.8635121.657493e-07
1.671481.8633831.700019e-07
1.678741.8632531.742730e-07
1.686031.8631231.785626e-07
1.693351.8629921.828709e-07
1.700711.8628611.871979e-07
1.70811.8627291.915437e-07
1.715521.8625961.959083e-07
1.722971.8624632.002920e-07
1.730461.8623292.046946e-07
1.737971.8621942.091164e-07
1.745521.8620592.135574e-07
1.753111.8619232.180177e-07
1.760721.8617872.224974e-07
1.768371.861652.269966e-07
1.776051.8615122.315152e-07
1.783771.8613732.360536e-07
1.791521.8612332.406116e-07
1.79931.8610932.451894e-07
1.81.8610812.456000e-07
1.807121.8609522.517818e-07
1.814971.860812.585992e-07
1.822851.8606682.654462e-07
1.830771.8605252.723230e-07
1.838731.860382.792296e-07
1.846711.8602352.861663e-07
1.854741.860092.931331e-07
1.862791.8599433.001301e-07
1.870891.8597953.071576e-07
1.879011.8596473.142155e-07
1.887181.8594983.213042e-07
1.895371.8593473.284236e-07
1.903611.8591963.355740e-07
1.911881.8590443.427554e-07
1.920181.8588913.499680e-07
1.928531.8587373.572120e-07
1.93691.8585823.644874e-07
1.945321.8584263.717945e-07
1.953771.8582693.791332e-07
1.962261.8581113.865039e-07
1.970781.8579523.939066e-07
1.979341.8577924.013414e-07
1.987941.8576314.088085e-07
1.996581.8574694.163081e-07
21.8574054.192800e-07
2.005251.8573064.337890e-07
2.013961.8571414.578574e-07
2.022711.8569764.820303e-07
2.03151.8568095.063083e-07
2.040321.8566425.306917e-07
2.049191.8564735.551811e-07
2.058091.8563035.797769e-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
—