Optical constants

Refractive index of J-SF5 (HIKARI)

J-SF5: 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
1.6727
Extinction coefficient k
3.97490e-08
Permittivity ε1
2.79791
Permittivity ε2
1.32976e-07
Absorption coefficient α
0.00850069 cm⁻¹
Penetration depth δ = λ/(2πk)
2.35275e+09 nm
Abbe number Vd
32.185
Chromatic dispersion dn/dλ
-0.105385 µm⁻¹
Group index ng
1.73462
Group velocity dispersion
209.852 fs²/mm
Dispersion parameter D
-1144.86 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-SF5 (HIKARI): J-SF5
hikari_j_sf5 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-SF5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_sf5.range_nm)  # (388.865, 2058.09) nm
eps = hikari_j_sf5.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=2.71072072−0.0102160186⁢λ2.0−9.06763794×10-5⁢λ4.0+0.0288337808⁢λ−2.0+0.000557561753⁢λ−4.0+0.000133564048⁢λ−6.0−1.34358407×10-5⁢λ−8.0+1.19202152×10-6⁢λ−10.0

Valid from 0.388865 to 2.05809 µm.

Coefficients as stored
CiValue
C12.71072072
C2-0.0102160186
C32.0
C4-9.06763794e-05
C54.0
C60.0288337808
C7-2.0
C80.000557561753
C9-4.0
C100.000133564048
C11-6.0
C12-1.34358407e-05
C13-8.0
C141.19202152e-06
C15-10.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: -2.766e-06 8.9538e-09 -1.4265e-12 8.5854e-07 1.2783e-09 0.27473
nd
1.672700
Vd
32.185454
density
value: 2900
thermal expansion
value: 8.5e-06, temperature range: 243 343
dPgF
0.0069
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = -6.74e-08 K⁻¹ at 633 nm, dn/dT = -1.16e-06 K⁻¹ at 1310 nm, dn/dT = -1.24e-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-SF5 (HIKARI), J-SF5: n and k versus wavelength
λ (µm)nk
0.3888651.718218.238603e-07
0.391.7176547.315700e-07
0.3904921.7174157.155847e-07
0.3921271.7166316.625293e-07
0.3937681.7158596.092519e-07
0.3954151.7150985.557516e-07
0.397071.7143485.020274e-07
0.3987321.7136084.480783e-07
0.41.7130534.069100e-07
0.4004011.7128794.024050e-07
0.4020761.712163.835624e-07
0.4037591.711453.646409e-07
0.4054491.7107513.456402e-07
0.4071451.7100613.265600e-07
0.4088491.709383.073999e-07
0.410561.7087092.881597e-07
0.4122781.7080462.688389e-07
0.4140041.7073922.494373e-07
0.4157361.7067472.299545e-07
0.4174761.706112.103901e-07
0.4192231.7054821.907439e-07
0.421.7052061.820100e-07
0.4209781.7048611.790333e-07
0.4227391.7042491.736696e-07
0.4245091.7036441.682835e-07
0.4262851.7030471.628748e-07
0.4280691.7024581.574435e-07
0.4298611.7018761.519895e-07
0.431661.7013011.465126e-07
0.4334661.7007341.410129e-07
0.435281.7001731.354901e-07
0.4371021.699621.299442e-07
0.4389311.6990731.243751e-07
0.441.6987571.211200e-07
0.4407681.6985321.200282e-07
0.4426121.6979991.174049e-07
0.4444651.6974711.147706e-07
0.4463251.696951.121254e-07
0.4481931.6964351.094690e-07
0.4500681.6959271.068016e-07
0.4519521.6954241.041229e-07
0.4538431.6949271.014331e-07
0.4557421.6944369.873203e-08
0.457651.6939519.601963e-08
0.4595651.6934719.329589e-08
0.461.6933639.267700e-08
0.4614881.6929979.123328e-08
0.4634191.6925288.935954e-08
0.4653591.6920658.747796e-08
0.4673061.6916078.558850e-08
0.4692621.6911548.369113e-08
0.4712261.6907068.178583e-08
0.4731981.6902637.987255e-08
0.4751781.6898257.795127e-08
0.4771671.6893927.602194e-08
0.4791641.6889647.408454e-08
0.481.6887877.327300e-08
0.4811691.6885417.250522e-08
0.4831821.6881227.118245e-08
0.4852051.6877086.985414e-08
0.4872351.6872986.852028e-08
0.4892741.6868936.718083e-08
0.4913221.6864926.583578e-08
0.4933781.6860966.448509e-08
0.4954431.6857036.312876e-08
0.4975161.6853156.176675e-08
0.4995981.6849316.039904e-08
0.51.6848586.013500e-08
0.5016891.6845525.958961e-08
0.5037881.6841765.891159e-08
0.5058971.6838045.823073e-08
0.5080141.6834365.754702e-08
0.510141.6830725.686045e-08
0.5122751.6827125.617100e-08
0.5144191.6823555.547867e-08
0.5165711.6820035.478345e-08
0.5187331.6816535.408531e-08
0.5209041.6813085.338425e-08
0.5230841.6809665.268026e-08
0.5252731.6806275.197332e-08
0.5274711.6802925.126343e-08
0.5296791.6799615.055056e-08
0.5318951.6796334.983471e-08
0.5341211.6793084.911586e-08
0.5363571.6789864.839401e-08
0.5386011.6786684.766913e-08
0.5408551.6783524.694123e-08
0.5431191.678044.621027e-08
0.5453921.6777314.547626e-08
0.5476741.6774254.473917e-08
0.5499661.6771224.399900e-08
0.551.6771184.398800e-08
0.5522681.6768234.373236e-08
0.5545791.6765264.347180e-08
0.55691.6762324.321014e-08
0.559231.675944.294739e-08
0.561571.6756524.268354e-08
0.5639211.6753664.241859e-08
0.5662811.6750844.215253e-08
0.568651.6748044.188535e-08
0.571031.6745264.161706e-08
0.573421.6742514.134764e-08
0.575821.6739794.107709e-08
0.5782291.673714.080542e-08
0.5806491.6734434.053260e-08
0.5830791.6731784.025865e-08
0.5855191.6729173.998355e-08
0.587971.6726573.970729e-08
0.590431.67243.942988e-08
0.5929011.6721453.915131e-08
0.5953821.6718933.887158e-08
0.5978741.6716433.859067e-08
0.61.6714333.835100e-08
0.6003761.6713963.845358e-08
0.6028891.671153.913875e-08
0.6054121.6709073.982678e-08
0.6079451.6706664.051770e-08
0.610491.6704284.121150e-08
0.6130441.6701914.190821e-08
0.615611.6699574.260784e-08
0.6181861.6697254.331039e-08
0.6207731.6694954.401588e-08
0.6233711.6692674.472433e-08
0.625981.6690414.543573e-08
0.62861.6688174.615012e-08
0.631231.6685954.686750e-08
0.6338721.6683754.758788e-08
0.6365251.6681574.831127e-08
0.6391881.6679414.903769e-08
0.6418631.6677274.976715e-08
0.644551.6675145.049966e-08
0.6472471.6673045.123524e-08
0.6499561.6670955.197390e-08
0.651.6670925.198600e-08
0.6526761.6668885.220000e-08
0.6554071.6666835.241846e-08
0.658151.666485.263783e-08
0.6609041.6662795.285812e-08
0.663671.6660795.307933e-08
0.6664471.6658815.330147e-08
0.6692361.6656845.352453e-08
0.6720371.665495.374853e-08
0.674851.6652965.397347e-08
0.6776741.6651055.419935e-08
0.680511.6649155.442617e-08
0.6833581.6647275.465395e-08
0.6862171.664545.488268e-08
0.6890891.6643555.511236e-08
0.6919731.6641715.534300e-08
0.6948691.6639895.557462e-08
0.6977771.6638085.580720e-08
0.71.6636725.598500e-08
0.7006971.6636295.613048e-08
0.7036291.6634525.674249e-08
0.7065741.6632755.735707e-08
0.7095311.66315.797421e-08
0.71251.6629275.859394e-08
0.7154821.6627555.921627e-08
0.7184761.6625845.984119e-08
0.7214831.6624156.046874e-08
0.7245021.6622476.109891e-08
0.7275341.662086.173171e-08
0.7305791.6619156.236717e-08
0.7336371.6617516.300528e-08
0.7367071.6615886.364607e-08
0.739791.6614266.428953e-08
0.7428861.6612666.493569e-08
0.7459951.6611076.558456e-08
0.7491171.6609496.623613e-08
0.7522521.6607936.689044e-08
0.75541.6606376.754748e-08
0.7585611.6604836.820728e-08
0.7617361.660336.886983e-08
0.7649231.6601786.953516e-08
0.7681251.6600277.020327e-08
0.7713391.6598777.087418e-08
0.7745671.6597287.154789e-08
0.7778091.6595817.222443e-08
0.7810641.6594347.290379e-08
0.7843321.6592897.358600e-08
0.7876151.6591447.427107e-08
0.7909111.6590017.495900e-08
0.7942211.6588597.564981e-08
0.7975441.6587177.634351e-08
0.81.6586147.685600e-08
0.8008821.6585777.655823e-08
0.8042341.6584387.542689e-08
0.8075991.6582997.429081e-08
0.8109791.6581627.314998e-08
0.8143731.6580257.200437e-08
0.8177811.657897.085397e-08
0.8212041.6577556.969875e-08
0.824641.6576216.853870e-08
0.8280911.6574886.737380e-08
0.8315571.6573566.620402e-08
0.8350371.6572256.502934e-08
0.8385311.6570956.384975e-08
0.8420411.6569666.266522e-08
0.8455641.6568376.147574e-08
0.8491031.6567096.028128e-08
0.8526561.6565835.908182e-08
0.8562251.6564565.787733e-08
0.8598081.6563315.666781e-08
0.8634061.6562075.545323e-08
0.867021.6560835.423356e-08
0.8706481.655965.300879e-08
0.8742921.6558385.177889e-08
0.877951.6557165.054385e-08
0.8816251.6555964.930364e-08
0.8853141.6554764.805824e-08
0.8890191.6553564.680762e-08
0.892741.6552384.555178e-08
0.8964761.655124.429067e-08
0.91.655014.310100e-08
0.9002271.6550034.311188e-08
0.9039951.6548864.329230e-08
0.9077781.654774.347348e-08
0.9115771.6546554.365541e-08
0.9153921.654544.383811e-08
0.9192231.6544264.402157e-08
0.9230691.6543134.420579e-08
0.9269321.65424.439079e-08
0.9308121.6540884.457656e-08
0.9347071.6539774.476311e-08
0.9386191.6538664.495044e-08
0.9425471.6537554.513856e-08
0.9464911.6536464.532746e-08
0.9504521.6535364.551715e-08
0.954431.6534284.570764e-08
0.9584241.653324.589892e-08
0.9624351.6532124.609100e-08
0.9664631.6531054.628389e-08
0.9705071.6529984.647759e-08
0.9745691.6528924.667209e-08
0.9786471.6527874.686741e-08
0.9827431.6526824.706355e-08
0.9868551.6525774.726050e-08
0.9909851.6524734.745829e-08
0.9951321.6523694.765690e-08
0.9992971.6522664.785634e-08
11.6522494.789000e-08
1.003481.6521644.738951e-08
1.007681.6520614.678537e-08
1.01191.6519594.617870e-08
1.016131.6518584.556950e-08
1.020381.6517574.495774e-08
1.024651.6516564.434343e-08
1.028941.6515564.372654e-08
1.033251.6514564.310707e-08
1.037571.6513574.248501e-08
1.041911.6512584.186035e-08
1.046271.6511594.123307e-08
1.050651.6510614.060317e-08
1.055051.6509633.997063e-08
1.059461.6508653.933545e-08
1.06391.6507683.869760e-08
1.068351.6506713.805709e-08
1.072821.6505753.741390e-08
1.077311.6504783.676801e-08
1.081821.6503823.611942e-08
1.086351.6502863.546812e-08
1.090891.6501913.481409e-08
1.095461.6500963.415733e-08
1.100041.6500013.349781e-08
1.104651.6499073.283554e-08
1.109271.6498123.217050e-08
1.113911.6497183.150267e-08
1.118571.6496243.083204e-08
1.123251.6495313.015861e-08
1.127961.6494372.948237e-08
1.132681.6493442.880329e-08
1.137421.6492512.812137e-08
1.142181.6491592.743659e-08
1.146961.6490662.674895e-08
1.151761.6489742.605844e-08
1.156581.6488822.536503e-08
1.161421.648792.466872e-08
1.166281.6486982.396950e-08
1.171161.6486072.326735e-08
1.176061.6485152.256226e-08
1.180981.6484242.185422e-08
1.185921.6483332.114322e-08
1.190891.6482422.042925e-08
1.195871.6481511.971228e-08
1.21.6480761.911800e-08
1.200871.6480611.913192e-08
1.20591.647971.921197e-08
1.210951.647881.929237e-08
1.216011.6477891.937310e-08
1.22111.6476991.945416e-08
1.226211.6476091.953557e-08
1.231341.6475191.961731e-08
1.23651.6474291.969940e-08
1.241671.6473391.978184e-08
1.246871.6472491.986461e-08
1.252091.6471591.994774e-08
1.257331.647072.003121e-08
1.262591.646982.011503e-08
1.267871.646892.019920e-08
1.273181.6468012.028372e-08
1.278511.6467112.036860e-08
1.283861.6466212.045383e-08
1.289231.6465322.053942e-08
1.294621.6464422.062537e-08
1.300041.6463532.071168e-08
1.305481.6462632.079835e-08
1.310951.6461732.088538e-08
1.316431.6460842.097277e-08
1.321941.6459942.106053e-08
1.327471.6459052.114866e-08
1.333031.6458152.123716e-08
1.338611.6457252.132603e-08
1.344211.6456352.141527e-08
1.349841.6455452.150488e-08
1.355481.6454552.159487e-08
1.361161.6453652.168523e-08
1.366851.6452752.177598e-08
1.372571.6451852.186710e-08
1.378321.6450952.195860e-08
1.384091.6450042.205049e-08
1.389881.6449142.214276e-08
1.395691.6448232.223542e-08
1.41.6447562.230400e-08
1.401541.6447322.311525e-08
1.40741.6446412.621378e-08
1.413291.644552.932528e-08
1.419211.6444593.244980e-08
1.425141.6443683.558740e-08
1.431111.6442763.873813e-08
1.43711.6441844.190204e-08
1.443111.6440924.507920e-08
1.449151.6444.826965e-08
1.455221.6439085.147345e-08
1.461311.6438165.469066e-08
1.467421.6437235.792133e-08
1.473561.643636.116553e-08
1.479731.6435376.442330e-08
1.485921.6434446.769470e-08
1.492141.643357.097980e-08
1.498381.6432567.427864e-08
1.504661.6431627.759129e-08
1.510951.6430688.091780e-08
1.517281.6429748.425823e-08
1.523631.6428798.761264e-08
1.531.6427849.098109e-08
1.53641.6426889.436364e-08
1.542831.6425939.776034e-08
1.549291.6424971.011713e-07
1.555771.64241.045965e-07
1.562291.6423041.080360e-07
1.568821.6422071.114899e-07
1.575391.642111.149583e-07
1.581981.6420121.184412e-07
1.58861.6419141.219386e-07
1.595251.6418161.254507e-07
1.61.6417461.279600e-07
1.601931.6417171.305034e-07
1.608631.6416181.393560e-07
1.615361.6415191.482456e-07
1.622121.6414191.571724e-07
1.628911.6413191.661366e-07
1.635731.6412191.751382e-07
1.642571.6411181.841776e-07
1.649451.6410161.932548e-07
1.656351.6409152.023699e-07
1.663281.6408122.115233e-07
1.670241.640712.207149e-07
1.677231.6406072.299450e-07
1.684251.6405032.392137e-07
1.69131.6403992.485212e-07
1.698381.6402952.578676e-07
1.705491.640192.672532e-07
1.712621.6400842.766780e-07
1.719791.6399782.861423e-07
1.726991.6398722.956462e-07
1.734211.6397653.051899e-07
1.741471.6396583.147735e-07
1.748761.639553.243972e-07
1.756081.6394413.340612e-07
1.763431.6393323.437656e-07
1.770811.6392223.535107e-07
1.778221.6391123.632965e-07
1.785661.6390013.731233e-07
1.793131.638893.829912e-07
1.81.6387883.920600e-07
1.800641.6387783.928798e-07
1.808171.6386664.025871e-07
1.815741.6385534.123350e-07
1.823341.6384394.221237e-07
1.830971.6383244.319533e-07
1.838631.6382094.418241e-07
1.846331.6380944.517362e-07
1.854051.6379774.616898e-07
1.861811.637864.716850e-07
1.86961.6377434.817221e-07
1.877431.6376244.918012e-07
1.885281.6375055.019224e-07
1.893171.6373865.120860e-07
1.90111.6372655.222922e-07
1.909051.6371445.325410e-07
1.917041.6370225.428328e-07
1.925061.6368995.531676e-07
1.933121.6367765.635456e-07
1.941211.6366525.739671e-07
1.949331.6365275.844322e-07
1.957491.6364015.949411e-07
1.965681.6362756.054940e-07
1.973911.6361476.160911e-07
1.982171.6360196.267325e-07
1.990471.635896.374184e-07
1.99881.6357616.481490e-07
21.6357426.497000e-07
2.007161.635636.807494e-07
2.015561.6354987.171710e-07
2.0241.6353667.537451e-07
2.032471.6352337.904722e-07
2.040971.6350998.273530e-07
2.049511.6349648.643881e-07
2.058091.6348289.015782e-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
—