Optical constants

Refractive index of J-LF5 (HIKARI)

J-LF5: 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
1.58144
Extinction coefficient k
2.45299e-08
Permittivity ε1
2.50094
Permittivity ε2
7.75851e-08
Absorption coefficient α
0.00524595 cm⁻¹
Penetration depth δ = λ/(2πk)
3.81246e+09 nm
Abbe number Vd
40.977
Chromatic dispersion dn/dλ
-0.0722166 µm⁻¹
Group index ng
1.62387
Group velocity dispersion
136.946 fs²/mm
Dispersion parameter D
-747.113 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-LF5 (HIKARI): J-LF5
hikari_j_lf5 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LF5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lf5.range_nm)  # (365.015, 2058.09) nm
eps = hikari_j_lf5.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=2.44484793−0.00936437503⁢λ2.0−9.46881204×10-5⁢λ4.0+0.0193135291⁢λ−2.0+0.000236834809⁢λ−4.0+7.55993911×10-5⁢λ−6.0−7.53407578×10-6⁢λ−8.0+5.41756865×10-7⁢λ−10.0

Valid from 0.365015 to 2.05809 µm.

Coefficients as stored
CiValue
C12.44484793
C2-0.00936437503
C32.0
C4-9.46881204e-05
C54.0
C60.0193135291
C7-2.0
C80.000236834809
C9-4.0
C107.55993911e-05
C11-6.0
C12-7.53407578e-06
C13-8.0
C145.41756865e-07
C15-10.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 8.002e-07 1.1418e-08 -1.3405e-12 7.1386e-07 7.7452e-10 0.24901
nd
1.581440
Vd
40.977199
density
value: 2580
thermal expansion
value: 7.5e-06, temperature range: 243 343
dPgF
0.0007
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 1.37e-06 K⁻¹ at 633 nm, dn/dT = 5.68e-07 K⁻¹ at 1310 nm, dn/dT = 5.07e-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-LF5 (HIKARI), J-LF5: n and k versus wavelength
λ (µm)nk
0.3650151.6195232.448412e-06
0.3666011.6188922.132538e-06
0.3681931.618271.815293e-06
0.3697931.6176571.496669e-06
0.371.6175791.455400e-06
0.3713991.6170531.340911e-06
0.3730131.6164581.208901e-06
0.3746331.6158721.076317e-06
0.3762611.6152939.431567e-07
0.3778951.6147238.094183e-07
0.3795371.6141616.750989e-07
0.381.6140056.372100e-07
0.3811861.6136075.975751e-07
0.3828421.6130615.422213e-07
0.3845051.6125224.866271e-07
0.3861751.611994.307913e-07
0.3878531.6114653.747130e-07
0.3895381.6109483.183910e-07
0.391.6108073.029400e-07
0.391231.6104372.857604e-07
0.392931.6099332.620222e-07
0.3946371.6094362.381808e-07
0.3963511.6089462.142359e-07
0.3980731.6084611.901869e-07
0.3998021.6079831.660335e-07
0.41.6079291.632700e-07
0.4015391.6075111.561649e-07
0.4032831.6070451.481116e-07
0.4050351.6065851.400232e-07
0.4067951.6061311.318997e-07
0.4085621.6056821.237410e-07
0.4103371.6052391.155467e-07
0.412121.6048021.073169e-07
0.413911.604379.905136e-08
0.4157081.6039439.074988e-08
0.4175141.6035218.241234e-08
0.4193281.6031057.403858e-08
0.421.6029527.093500e-08
0.4211491.6026936.989961e-08
0.4229791.6022866.825153e-08
0.4248171.6018856.659629e-08
0.4266621.6014886.493386e-08
0.4285161.6010956.326421e-08
0.4303771.6007086.158731e-08
0.4322471.6003245.990312e-08
0.4341251.5999465.821161e-08
0.436011.5995715.651276e-08
0.4379051.5992015.480653e-08
0.4398071.5988365.309288e-08
0.441.5987995.291900e-08
0.4417181.5984745.185152e-08
0.4436371.5981165.065890e-08
0.4455641.5977634.946111e-08
0.4474991.5974144.825811e-08
0.4494431.5970684.704989e-08
0.4513961.5967264.583642e-08
0.4533571.5963894.461768e-08
0.4553261.5960544.339364e-08
0.4573041.5957244.216429e-08
0.4592911.5953974.092959e-08
0.461.5952824.048900e-08
0.4612861.5950744.010592e-08
0.463291.5947543.950915e-08
0.4653031.5944383.890979e-08
0.4673241.5941253.830782e-08
0.4693541.5938163.770324e-08
0.4713931.593513.709603e-08
0.4734411.5932073.648618e-08
0.4754981.5929073.587368e-08
0.4775641.5926113.525852e-08
0.4796381.5923183.464069e-08
0.481.5922673.453300e-08
0.4817221.5920283.431137e-08
0.4838151.5917413.404204e-08
0.4859171.5914573.377154e-08
0.4880271.5911763.349986e-08
0.4901481.5908973.322700e-08
0.4922771.5906223.295296e-08
0.4944151.590353.267773e-08
0.4965631.590083.240130e-08
0.4987211.5898133.212367e-08
0.51.5896573.195900e-08
0.5008871.5895493.185931e-08
0.5030631.5892883.161477e-08
0.5052481.5890293.136918e-08
0.5074431.5887733.112251e-08
0.5096481.5885193.087478e-08
0.5118621.5882683.062596e-08
0.5140861.588023.037607e-08
0.5163191.5877743.012509e-08
0.5185621.587532.987302e-08
0.5208151.5872892.961986e-08
0.5230771.5870512.936559e-08
0.5253491.5868142.911022e-08
0.5276321.586582.885375e-08
0.5299241.5863492.859615e-08
0.5322261.5861192.833744e-08
0.5345381.5858922.807761e-08
0.536861.5856672.781664e-08
0.5391931.5854442.755454e-08
0.5415351.5852242.729131e-08
0.5438871.5850052.702693e-08
0.546251.5847892.676140e-08
0.5486231.5845742.649472e-08
0.551.5844512.634000e-08
0.5510071.5843622.629154e-08
0.55341.5841522.617631e-08
0.5558041.5839442.606057e-08
0.5582191.5837372.594434e-08
0.5606441.5835332.582760e-08
0.563081.583332.571035e-08
0.5655261.583132.559259e-08
0.5679821.5829312.547432e-08
0.570451.5827342.535554e-08
0.5729281.5825392.523624e-08
0.5754171.5823462.511642e-08
0.5779171.5821552.499609e-08
0.5804271.5819652.487522e-08
0.5829491.5817772.475384e-08
0.5854811.5815912.463193e-08
0.5880251.5814072.450948e-08
0.5905791.5812242.438651e-08
0.5931451.5810432.426300e-08
0.5957221.5808632.413896e-08
0.598311.5806852.401437e-08
0.61.580572.393300e-08
0.6009091.5805092.415844e-08
0.6035191.5803342.480595e-08
0.6061411.5801612.545627e-08
0.6087741.5799892.610941e-08
0.6114191.5798192.676539e-08
0.6140751.579652.742422e-08
0.6167431.5794832.808591e-08
0.6194221.5793172.875048e-08
0.6221131.5791532.941794e-08
0.6248161.578993.008829e-08
0.627531.5788293.076156e-08
0.6302561.5786683.143775e-08
0.6329941.578513.211688e-08
0.6357441.5783523.279896e-08
0.6385061.5781963.348400e-08
0.641281.5780423.417202e-08
0.6440661.5778883.486302e-08
0.6468641.5777363.555703e-08
0.6496741.5775853.625406e-08
0.651.5775683.633500e-08
0.6524961.5774363.647453e-08
0.6553311.5772873.663298e-08
0.6581781.577143.679212e-08
0.6610371.5769943.695196e-08
0.6639081.5768493.711248e-08
0.6667931.5767063.727371e-08
0.6696891.5765633.743563e-08
0.6725991.5764223.759826e-08
0.6755211.5762823.776160e-08
0.6784551.5761433.792565e-08
0.6814031.5760053.809040e-08
0.6843631.5758693.825588e-08
0.6873361.5757333.842207e-08
0.6903221.5755983.858898e-08
0.6933211.5754653.875662e-08
0.6963331.5753323.892499e-08
0.6993581.5752013.909409e-08
0.71.5751733.913000e-08
0.7023961.575073.987954e-08
0.7054471.5749414.083420e-08
0.7085121.5748124.179299e-08
0.711591.5746854.275596e-08
0.7146811.5745584.372311e-08
0.7177861.5744324.469446e-08
0.7209041.5743084.567003e-08
0.7240361.5741844.664983e-08
0.7271811.5740614.763390e-08
0.730341.5739394.862224e-08
0.7335131.5738184.961487e-08
0.73671.5736985.061181e-08
0.73991.5735795.161309e-08
0.7431141.573465.261871e-08
0.7463421.5733435.362871e-08
0.7495851.5732265.464309e-08
0.7528411.573115.566188e-08
0.7561121.5729955.668509e-08
0.7593961.5728815.771275e-08
0.7626951.5727675.874488e-08
0.7660091.5726545.978148e-08
0.7693361.5725426.082259e-08
0.7726791.5724316.186823e-08
0.7760351.5723216.291840e-08
0.7794071.5722116.397314e-08
0.7827931.5721026.503246e-08
0.7861931.5719946.609638e-08
0.7896091.5718866.716493e-08
0.7930391.5717796.823812e-08
0.7964841.5716736.931596e-08
0.7999441.5715687.039849e-08
0.81.5715667.041600e-08
0.8034191.5714636.923583e-08
0.8069091.5713596.803114e-08
0.8104151.5712556.682122e-08
0.8139351.5711536.560603e-08
0.8174711.571056.438557e-08
0.8210231.5709496.315981e-08
0.8245891.5708486.192872e-08
0.8281721.5707476.069229e-08
0.8317691.5706485.945048e-08
0.8353831.5705485.820328e-08
0.8390121.570455.695066e-08
0.8426571.5703525.569260e-08
0.8463171.5702545.442907e-08
0.8499941.5701575.316006e-08
0.8536871.5700615.188553e-08
0.8573951.5699655.060546e-08
0.861121.569874.931984e-08
0.8648611.5697754.802863e-08
0.8686181.5696814.673181e-08
0.8723911.5695874.542935e-08
0.8761811.5694944.412124e-08
0.8799881.5694014.280744e-08
0.8838111.5693094.148794e-08
0.887651.5692174.016271e-08
0.8915061.5691253.883171e-08
0.8953791.5690343.749494e-08
0.8992691.5689443.615236e-08
0.91.5689273.590000e-08
0.9031751.5688543.602667e-08
0.9070991.5687643.618318e-08
0.911041.5686753.634038e-08
0.9149981.5685863.649825e-08
0.9189721.5684983.665681e-08
0.9229651.568413.681606e-08
0.9269741.5683223.697600e-08
0.9310011.5682353.713664e-08
0.9350461.5681483.729798e-08
0.9391081.5680623.746001e-08
0.9431881.5679763.762275e-08
0.9472851.567893.778620e-08
0.95141.5678053.795035e-08
0.9555331.567723.811522e-08
0.9596841.5676353.828081e-08
0.9638531.5675513.844711e-08
0.9680411.5674673.861414e-08
0.9722461.5673833.878190e-08
0.976471.56733.895038e-08
0.9807121.5672163.911959e-08
0.9849721.5671343.928954e-08
0.9892511.5670513.946023e-08
0.9935491.5669693.963166e-08
0.9978651.5668873.980383e-08
11.5668463.988900e-08
1.00221.5668053.976583e-08
1.006551.5667243.952206e-08
1.010931.5666423.927724e-08
1.015321.5665613.903134e-08
1.019731.5664813.878438e-08
1.024161.56643.853635e-08
1.028611.566323.828724e-08
1.033081.566243.803705e-08
1.037561.566163.778577e-08
1.042071.566083.753340e-08
1.04661.5660013.727993e-08
1.051151.5659223.702537e-08
1.055711.5658433.676969e-08
1.06031.5657643.651291e-08
1.06491.5656853.625501e-08
1.069531.5656063.599599e-08
1.074181.5655283.573584e-08
1.078841.565453.547456e-08
1.083531.5653723.521215e-08
1.088241.5652943.494860e-08
1.092961.5652163.468391e-08
1.097711.5651383.441806e-08
1.102481.5650613.415106e-08
1.107271.5649833.388290e-08
1.112081.5649063.361357e-08
1.116911.5648293.334308e-08
1.121761.5647513.307141e-08
1.126641.5646743.279856e-08
1.131531.5645973.252452e-08
1.136451.5645213.224929e-08
1.141381.5644443.197287e-08
1.146341.5643673.169525e-08
1.151321.564293.141642e-08
1.156321.5642143.113638e-08
1.161351.5641373.085512e-08
1.166391.564063.057264e-08
1.171461.5639843.028894e-08
1.176551.5639073.000400e-08
1.181661.5638312.971782e-08
1.186791.5637542.943040e-08
1.191951.5636782.914173e-08
1.197131.5636012.885181e-08
1.21.5635592.869100e-08
1.202331.5635252.939878e-08
1.207551.5634483.098648e-08
1.21281.5633723.258107e-08
1.218071.5632953.418259e-08
1.223361.5632193.579107e-08
1.228671.5631423.740653e-08
1.234011.5630653.902901e-08
1.239371.5629894.065854e-08
1.244751.5629124.229515e-08
1.250161.5628354.393887e-08
1.255591.5627584.558973e-08
1.261051.5626814.724777e-08
1.266531.5626044.891300e-08
1.272031.5625275.058547e-08
1.277551.562455.226521e-08
1.28311.5623735.395224e-08
1.288681.5622955.564660e-08
1.294281.5622185.734832e-08
1.29991.562145.905743e-08
1.305551.5620626.077397e-08
1.311221.5619846.249797e-08
1.316911.5619066.422946e-08
1.322641.5618286.596846e-08
1.328381.561756.771502e-08
1.334151.5616716.946917e-08
1.339951.5615937.123094e-08
1.345771.5615147.300037e-08
1.351621.5614357.477748e-08
1.357491.5613567.656231e-08
1.363381.5612767.835489e-08
1.369311.5611978.015527e-08
1.375261.5611178.196346e-08
1.381231.5610378.377951e-08
1.387231.5609578.560344e-08
1.393261.5608778.743531e-08
1.399311.5607968.927512e-08
1.41.5607878.948500e-08
1.405391.5607159.017540e-08
1.411491.5606349.095765e-08
1.417631.5605539.174329e-08
1.423781.5604719.253235e-08
1.429971.5603899.332483e-08
1.436181.5603079.412076e-08
1.442421.5602249.492015e-08
1.448691.5601429.572301e-08
1.454981.5600599.652935e-08
1.46131.5599759.733920e-08
1.467651.5598929.815257e-08
1.474031.5598089.896947e-08
1.480431.5597249.978992e-08
1.486861.5596391.006139e-07
1.493321.5595541.014415e-07
1.499811.5594691.022727e-07
1.506321.5593831.031075e-07
1.512871.5592981.039459e-07
1.519441.5592111.047880e-07
1.526041.5591251.056337e-07
1.532671.5590381.064831e-07
1.539331.558951.073362e-07
1.546011.5588621.081930e-07
1.552731.5587741.090535e-07
1.559481.5586861.099178e-07
1.566251.5585971.107858e-07
1.573051.5585071.116576e-07
1.579891.5584171.125332e-07
1.586751.5583271.134125e-07
1.593641.5582361.142957e-07
1.61.5581531.151100e-07
1.600571.5581451.159383e-07
1.607521.5580531.260789e-07
1.61451.5579611.362635e-07
1.621521.5578691.464924e-07
1.628561.5577761.567658e-07
1.635641.5576821.670837e-07
1.642741.5575881.774465e-07
1.649881.5574941.878543e-07
1.657051.5573981.983074e-07
1.664251.5573032.088058e-07
1.671481.5572072.193499e-07
1.678741.557112.299397e-07
1.686031.5570132.405756e-07
1.693351.5569152.512576e-07
1.700711.5568172.619861e-07
1.70811.5567182.727612e-07
1.715521.5566182.835831e-07
1.722971.5565182.944519e-07
1.730461.5564183.053681e-07
1.737971.5563173.163316e-07
1.745521.5562153.273428e-07
1.753111.5561123.384018e-07
1.760721.5560093.495088e-07
1.768371.5559053.606641e-07
1.776051.5558013.718678e-07
1.783771.5556963.831203e-07
1.791521.555593.944216e-07
1.79931.5554834.057720e-07
1.81.5554744.067900e-07
1.807121.5553764.219643e-07
1.814971.5552684.386989e-07
1.822851.555164.555062e-07
1.830771.5550514.723865e-07
1.838731.5549414.893402e-07
1.846711.554835.063675e-07
1.854741.5547195.234688e-07
1.862791.5546065.406444e-07
1.870891.5544935.578945e-07
1.879011.554385.752197e-07
1.887181.5542655.926201e-07
1.895371.554156.100961e-07
1.903611.5540336.276480e-07
1.911881.5539166.452761e-07
1.920181.5537996.629808e-07
1.928531.553686.807625e-07
1.93691.553566.986214e-07
1.945321.553447.165579e-07
1.953771.5533197.345723e-07
1.962261.5531977.526649e-07
1.970781.5530747.708362e-07
1.979341.552957.890864e-07
1.987941.5528258.074159e-07
1.996581.5526998.258250e-07
21.5526498.331200e-07
2.005251.5525738.648140e-07
2.013961.5524459.173901e-07
2.022711.5523169.701946e-07
2.03151.5521871.023228e-06
2.040321.5520561.076493e-06
2.049191.5519241.129988e-06
2.058091.5517921.183716e-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
—