Optical constants

Refractive index of J-LASF01 (HIKARI)

J-LASF01: 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
1.7859
Extinction coefficient k
1.04495e-08
Permittivity ε1
3.18943
Permittivity ε2
3.73234e-08
Absorption coefficient α
0.00223472 cm⁻¹
Penetration depth δ = λ/(2πk)
8.94966e+09 nm
Abbe number Vd
44.17
Chromatic dispersion dn/dλ
-0.0910814 µm⁻¹
Group index ng
1.83942
Group velocity dispersion
168.516 fs²/mm
Dispersion parameter D
-919.342 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-LASF01 (HIKARI): J-LASF01
hikari_j_lasf01 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASF01", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lasf01.range_nm)  # (365.015, 2058.09) nm
eps = hikari_j_lasf01.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=3.10918831−0.0137763126⁢λ2.0−0.000130545613⁢λ4.0+0.0274334291⁢λ−2.0+0.000651189638⁢λ−4.0−1.58159803×10-6⁢λ−6.0+1.87919051×10-6⁢λ−8.0

Valid from 0.365015 to 2.05809 µm.

Coefficients as stored
CiValue
C13.10918831
C2-0.0137763126
C32.0
C4-0.000130545613
C54.0
C60.0274334291
C7-2.0
C80.000651189638
C9-4.0
C10-1.58159803e-06
C11-6.0
C121.87919051e-06
C13-8.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 4.0009e-06 1.4777e-08 -1.7918e-12 7.0948e-07 4.4462e-10 0.20779
nd
1.785900
Vd
44.169881
density
value: 4250
thermal expansion
value: 5.9e-06, temperature range: 243 343
dPgF
-0.0078
resistance
phosphate: 3.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 3.65e-06 K⁻¹ at 633 nm, dn/dT = 2.64e-06 K⁻¹ at 1310 nm, dn/dT = 2.55e-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-LASF01 (HIKARI), J-LASF01: n and k versus wavelength
λ (µm)nk
0.3650151.8317286.116594e-07
0.3666011.8310165.693082e-07
0.3681931.8303125.267731e-07
0.3697931.8296164.840532e-07
0.371.8295274.785200e-07
0.3713991.8289294.537987e-07
0.3730131.828254.252939e-07
0.3746331.8275793.966654e-07
0.3762611.8269163.679124e-07
0.3778951.8262613.390346e-07
0.3795371.8256143.100313e-07
0.381.8254333.018500e-07
0.3811861.8249742.900047e-07
0.3828421.8243412.734617e-07
0.3845051.8237162.568468e-07
0.3861751.8230982.401597e-07
0.3878531.8224882.234001e-07
0.3895381.8218842.065677e-07
0.391.821722.019500e-07
0.391231.8212871.951370e-07
0.392931.8206971.857229e-07
0.3946371.8201141.762680e-07
0.3963511.8195371.667719e-07
0.3980731.8189671.572347e-07
0.3998021.8184031.476559e-07
0.41.8183391.465600e-07
0.4015391.8178461.423217e-07
0.4032831.8172951.375178e-07
0.4050351.816751.326930e-07
0.4067951.816211.278472e-07
0.4085621.8156771.229804e-07
0.4103371.815151.180925e-07
0.412121.8146291.131833e-07
0.413911.8141131.082528e-07
0.4157081.8136031.033008e-07
0.4175141.8130989.832738e-08
0.4193281.8125999.333232e-08
0.421.8124169.148100e-08
0.4211491.8121059.008366e-08
0.4229791.8116178.785945e-08
0.4248171.8111348.562557e-08
0.4266621.8106568.338200e-08
0.4285161.8101838.112867e-08
0.4303771.8097157.886556e-08
0.4322471.8092527.659262e-08
0.4341251.8087947.430980e-08
0.436011.8083417.201706e-08
0.4379051.8078936.971437e-08
0.4398071.8074496.740167e-08
0.441.8074056.716700e-08
0.4417181.807016.551227e-08
0.4436371.8065766.366358e-08
0.4455641.8061466.180685e-08
0.4474991.805725.994207e-08
0.4494431.8052995.806918e-08
0.4513961.8048835.618815e-08
0.4533571.804475.429895e-08
0.4553261.8040625.240155e-08
0.4573041.8036585.049590e-08
0.4592911.8032584.858197e-08
0.461.8031174.789900e-08
0.4612861.8028624.703933e-08
0.463291.802474.570010e-08
0.4653031.8020824.435505e-08
0.4673241.8016984.300416e-08
0.4693541.8013184.164740e-08
0.4713931.8009424.028475e-08
0.4734411.8005693.891617e-08
0.4754981.80023.754165e-08
0.4775641.7998353.616116e-08
0.4796381.7994743.477468e-08
0.481.7994113.453300e-08
0.4817221.7991163.327686e-08
0.4838151.7987613.175033e-08
0.4859171.798413.021717e-08
0.4880271.7980632.867735e-08
0.4901481.7977192.713084e-08
0.4922771.7973782.557761e-08
0.4944151.7970412.401763e-08
0.4965631.7967072.245088e-08
0.4987211.7963762.087732e-08
0.51.7961821.994400e-08
0.5008871.7960481.982346e-08
0.5030631.7957241.952779e-08
0.5052481.7954021.923084e-08
0.5074431.7950841.893259e-08
0.5096481.7947691.863305e-08
0.5118621.7944561.833221e-08
0.5140861.7941471.803006e-08
0.5163191.7938411.772660e-08
0.5185621.7935371.742182e-08
0.5208151.7932371.711571e-08
0.5230771.7929391.680828e-08
0.5253491.7926441.649951e-08
0.5276321.7923521.618940e-08
0.5299241.7920631.587794e-08
0.5322261.7917761.556513e-08
0.5345381.7914921.525096e-08
0.536861.791211.493542e-08
0.5391931.7909321.461852e-08
0.5415351.7906551.430024e-08
0.5438871.7903821.398057e-08
0.546251.7901111.365952e-08
0.5486231.7898421.333707e-08
0.551.7896881.315000e-08
0.5510071.7895761.307770e-08
0.55341.7893121.290578e-08
0.5558041.789051.273311e-08
0.5582191.7887911.255970e-08
0.5606441.7885351.238553e-08
0.563081.788281.221060e-08
0.5655261.7880281.203491e-08
0.5679821.7877781.185846e-08
0.570451.7875311.168124e-08
0.5729281.7872851.150326e-08
0.5754171.7870421.132450e-08
0.5779171.7868011.114496e-08
0.5804271.7865621.096464e-08
0.5829491.7863251.078354e-08
0.5854811.7860911.060166e-08
0.5880251.7858581.041898e-08
0.5905791.7856271.023551e-08
0.5931451.7853991.005124e-08
0.5957221.7851729.866173e-09
0.598311.7849479.680301e-09
0.61.7848029.558900e-09
0.6009091.7847259.667642e-09
0.6035191.7845049.979966e-09
0.6061411.7842851.029365e-08
0.6087741.7840681.060869e-08
0.6114191.7838521.092510e-08
0.6140751.7836391.124289e-08
0.6167431.7834281.156206e-08
0.6194221.7832181.188261e-08
0.6221131.783011.220456e-08
0.6248161.7828031.252790e-08
0.627531.7825991.285265e-08
0.6302561.7823961.317881e-08
0.6329941.7821951.350639e-08
0.6357441.7819951.383539e-08
0.6385061.7817981.416582e-08
0.641281.7816011.449769e-08
0.6440661.7814071.483099e-08
0.6468641.7812141.516575e-08
0.6496741.7810221.550196e-08
0.651.7811.554100e-08
0.6524961.7808321.587971e-08
0.6553311.7806441.626436e-08
0.6581781.7804571.665069e-08
0.6610371.7802721.703869e-08
0.6639081.7800881.742838e-08
0.6667931.7799051.781976e-08
0.6696891.7797251.821285e-08
0.6725991.7795451.860764e-08
0.6755211.7793671.900414e-08
0.6784551.779191.940237e-08
0.6814031.7790151.980233e-08
0.6843631.7788412.020402e-08
0.6873361.7786682.060746e-08
0.6903221.7784972.101266e-08
0.6933211.7783272.141961e-08
0.6963331.7781582.182833e-08
0.6993581.777992.223883e-08
0.71.7779552.232600e-08
0.7023961.7778242.317001e-08
0.7054471.7776592.424498e-08
0.7085121.7774962.532461e-08
0.711591.7773332.640894e-08
0.7146811.7771722.749798e-08
0.7177861.7770122.859175e-08
0.7209041.7768532.969027e-08
0.7240361.7766953.079356e-08
0.7271811.7765383.190165e-08
0.730341.7763833.301455e-08
0.7335131.7762283.413229e-08
0.73671.7760753.525488e-08
0.73991.7759233.638234e-08
0.7431141.7757723.751471e-08
0.7463421.7756223.865199e-08
0.7495851.7754733.979422e-08
0.7528411.7753254.094140e-08
0.7561121.7751784.209358e-08
0.7593961.7750324.325075e-08
0.7626951.7748874.441295e-08
0.7660091.7747434.558021e-08
0.7693361.77464.675253e-08
0.7726791.7744584.792995e-08
0.7760351.7743174.911248e-08
0.7794071.7741775.030014e-08
0.7827931.7740375.149297e-08
0.7861931.7738995.269098e-08
0.7896091.7737615.389419e-08
0.7930391.7736255.510263e-08
0.7964841.7734895.631633e-08
0.7999441.7733545.753529e-08
0.81.7733525.755500e-08
0.8034191.773225.607733e-08
0.8069091.7730875.456895e-08
0.8104151.7729555.305402e-08
0.8139351.7728235.153251e-08
0.8174711.7726925.000439e-08
0.8210231.7725624.846963e-08
0.8245891.7724334.692820e-08
0.8281721.7723054.538008e-08
0.8317691.7721774.382523e-08
0.8353831.772054.226363e-08
0.8390121.7719244.069524e-08
0.8426571.7717983.912004e-08
0.8463171.7716743.753799e-08
0.8499941.771553.594908e-08
0.8536871.7714263.435326e-08
0.8573951.7713033.275051e-08
0.861121.7711813.114079e-08
0.8648611.771062.952408e-08
0.8686181.7709392.790035e-08
0.8723911.7708192.626957e-08
0.8761811.77072.463170e-08
0.8799881.7705812.298671e-08
0.8838111.7704622.133458e-08
0.887651.7703451.967527e-08
0.8915061.7702281.800876e-08
0.8953791.7701111.633500e-08
0.8992691.7699951.465397e-08
0.91.7699731.433800e-08
0.9031751.769881.438859e-08
0.9070991.7697651.445109e-08
0.911041.7696511.451386e-08
0.9149981.7695371.457691e-08
0.9189721.7694231.464023e-08
0.9229651.7693111.470383e-08
0.9269741.7691981.476770e-08
0.9310011.7690871.483185e-08
0.9350461.7689751.489628e-08
0.9391081.7688641.496099e-08
0.9431881.7687541.502598e-08
0.9472851.7686441.509125e-08
0.95141.7685351.515681e-08
0.9555331.7684261.522265e-08
0.9596841.7683171.528877e-08
0.9638531.7682091.535519e-08
0.9680411.7681011.542189e-08
0.9722461.7679931.548888e-08
0.976471.7678861.555616e-08
0.9807121.767781.562374e-08
0.9849721.7676731.569161e-08
0.9892511.7675671.575977e-08
0.9935491.7674621.582823e-08
0.9978651.7673571.589699e-08
11.7673051.593100e-08
1.00221.7672521.586086e-08
1.006551.7671471.572204e-08
1.010931.7670431.558262e-08
1.015321.7669391.544259e-08
1.019731.7668351.530196e-08
1.024161.7667321.516071e-08
1.028611.7666291.501885e-08
1.033081.7665261.487637e-08
1.037561.7664231.473328e-08
1.042071.7663211.458956e-08
1.04661.7662191.444522e-08
1.051151.7661171.430025e-08
1.055711.7660161.415465e-08
1.06031.7659141.400842e-08
1.06491.7658131.386156e-08
1.069531.7657121.371405e-08
1.074181.7656111.356591e-08
1.078841.7655111.341712e-08
1.083531.765411.326769e-08
1.088241.765311.311760e-08
1.092961.765211.296687e-08
1.097711.765111.281548e-08
1.102481.765011.266343e-08
1.107271.7649111.251072e-08
1.112081.7648111.235735e-08
1.116911.7647121.220331e-08
1.121761.7646131.204860e-08
1.126641.7645141.189322e-08
1.131531.7644151.173717e-08
1.136451.7643161.158043e-08
1.141381.7642171.142302e-08
1.146341.7641181.126492e-08
1.151321.7640191.110614e-08
1.156321.7639211.094666e-08
1.161351.7638221.078650e-08
1.166391.7637241.062563e-08
1.171461.7636251.046407e-08
1.176551.7635271.030181e-08
1.181661.7634281.013884e-08
1.186791.763339.975165e-09
1.191951.7632319.810778e-09
1.197131.7631339.645677e-09
1.21.7630789.554100e-09
1.202331.7630349.572633e-09
1.207551.7629369.614207e-09
1.21281.7628379.655962e-09
1.218071.7627389.697898e-09
1.223361.762649.740016e-09
1.228671.7625419.782317e-09
1.234011.7624429.824802e-09
1.239371.7623449.867472e-09
1.244751.7622459.910327e-09
1.250161.7621469.953368e-09
1.255591.7620479.996596e-09
1.261051.7619481.004001e-08
1.266531.7618481.008362e-08
1.272031.7617491.012741e-08
1.277551.7616491.017139e-08
1.28311.761551.021557e-08
1.288681.761451.025994e-08
1.294281.761351.030450e-08
1.29991.761251.034925e-08
1.305551.7611491.039420e-08
1.311221.7610491.043934e-08
1.316911.7609481.048468e-08
1.322641.7608471.053022e-08
1.328381.7607461.057595e-08
1.334151.7606451.062188e-08
1.339951.7605441.066801e-08
1.345771.7604421.071435e-08
1.351621.760341.076088e-08
1.357491.7602381.080762e-08
1.363381.7601351.085456e-08
1.369311.7600331.090170e-08
1.375261.759931.094905e-08
1.381231.7598261.099660e-08
1.387231.7597231.104436e-08
1.393261.7596191.109233e-08
1.399311.7595151.114050e-08
1.41.7595031.114600e-08
1.405391.7594111.291013e-08
1.411491.7593061.490896e-08
1.417631.7592011.691647e-08
1.423781.7590951.893270e-08
1.429971.758992.095769e-08
1.436181.7588832.299148e-08
1.442421.7587772.503410e-08
1.448691.758672.708559e-08
1.454981.7585632.914600e-08
1.46131.7584553.121536e-08
1.467651.7583473.329371e-08
1.474031.7582393.538109e-08
1.480431.758133.747753e-08
1.486861.7580213.958308e-08
1.493321.7579114.169778e-08
1.499811.7578014.382167e-08
1.506321.757694.595478e-08
1.512871.7575794.809716e-08
1.519441.7574675.024885e-08
1.526041.7573555.240988e-08
1.532671.7572435.458031e-08
1.539331.757135.676016e-08
1.546011.7570165.894948e-08
1.552731.7569026.114831e-08
1.559481.7567886.335669e-08
1.566251.7566736.557467e-08
1.573051.7565576.780228e-08
1.579891.7564417.003957e-08
1.586751.7563247.228658e-08
1.593641.7562067.454336e-08
1.61.7560987.662400e-08
1.600571.7560897.693864e-08
1.607521.755978.079095e-08
1.61451.7558518.465999e-08
1.621521.7557318.854584e-08
1.628561.7556119.244856e-08
1.635641.7554899.636825e-08
1.642741.7553681.003050e-07
1.649881.7552451.042588e-07
1.657051.7551221.082298e-07
1.664251.7549991.122180e-07
1.671481.7548741.162236e-07
1.678741.7547491.202465e-07
1.686031.7546231.242870e-07
1.693351.7544971.283450e-07
1.700711.7543691.324206e-07
1.70811.7542411.365139e-07
1.715521.7541121.406250e-07
1.722971.7539831.447540e-07
1.730461.7538531.489009e-07
1.737971.7537211.530659e-07
1.745521.7535891.572489e-07
1.753111.7534571.614501e-07
1.760721.7533231.656695e-07
1.768371.7531891.699073e-07
1.776051.7530531.741635e-07
1.783771.7529171.784381e-07
1.791521.752781.827314e-07
1.79931.7526421.870433e-07
1.81.752631.874300e-07
1.807121.7525042.003541e-07
1.814971.7523642.146071e-07
1.822851.7522232.289221e-07
1.830771.7520822.432993e-07
1.838731.7519392.577389e-07
1.846711.7517962.722413e-07
1.854741.7516512.868066e-07
1.862791.7515063.014352e-07
1.870891.7513593.161274e-07
1.879011.7512123.308834e-07
1.887181.7510633.457035e-07
1.895371.7509143.605880e-07
1.903611.7507633.755372e-07
1.911881.7506123.905513e-07
1.920181.7504594.056306e-07
1.928531.7503054.207754e-07
1.93691.750154.359860e-07
1.945321.7499944.512627e-07
1.953771.7498374.666058e-07
1.962261.7496794.820155e-07
1.970781.7495194.974922e-07
1.979341.7493595.130361e-07
1.987941.7491975.286475e-07
1.996581.7490345.443267e-07
21.7489695.505400e-07
2.005251.748875.774206e-07
2.013961.7487046.220120e-07
2.022711.7485376.667970e-07
2.03151.7483697.117765e-07
2.040321.74827.569515e-07
2.049191.748038.023228e-07
2.058091.7478588.478911e-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
—