Optical constants

Refractive index of F5 (SCHOTT)

F5: n,k 0.32–2.5 µm

Data
formula 2 + tabulated k
Range
0.32–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength. Note: k data cover 334-2500 nm only; k = 0 elsewhere in the n range 320-2500 nm.

At one wavelength

Range 0.32–2.5 µm
Refractive index n
1.60342
Extinction coefficient k
9.37538e-09
Permittivity ε1
2.57095
Permittivity ε2
3.00653e-08
Absorption coefficient α
0.00200501 cm⁻¹
Penetration depth δ = λ/(2πk)
9.97501e+09 nm
Abbe number Vd
38.03
Chromatic dispersion dn/dλ
-0.0805995 µm⁻¹
Group index ng
1.65078
Group velocity dispersion
155.337 fs²/mm
Dispersion parameter D
-847.445 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

# F5 (SCHOTT): F5
schott_f5 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "F5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_f5.range_nm)  # (320, 2500) nm
eps = schott_f5.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

Sellmeier (C in µm²) (formula 2), λ in µm
n2−1=1.3104463λ2λ2−0.00958633048+0.19603426λ2λ2−0.0457627627+0.96612977λ2λ2−115.011883

Valid from 0.32 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.3104463
C30.00958633048
C40.19603426
C50.0457627627
C60.96612977
C7115.011883

Comments and conditions

lead containing glass type

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 2.13e-06 1.65e-08 -6.98e-11 1.02e-06 6.56e-10 0.208
nd
1.60342
Vd
38.03
glass code
603380.347
glass status
standard
density
value: 3470
thermal expansion
value: 8e-06, temperature range: 243 343; value: 8.9e-06, temperature range: 293 573
dPgF
-0.0003
resistance
acid: 1.0; stain: 0.0; alkali: 2.3; climatic: 1.0; phosphate: 2.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 2.43e-06 K⁻¹ at 633 nm, dn/dT = 1.30e-06 K⁻¹ at 1310 nm, dn/dT = 1.21e-06 K⁻¹ at 1550 nm
Notes on the source data (kept exactly as published):
  • k data cover 334-2500 nm only; k = 0 elsewhere in the n range 320-2500 nm

References

Cite

SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com); See also SCHOTT 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
F5 (SCHOTT), F5: n and k versus wavelength
λ (µm)nk
0.321.673130
0.3216531.67180
0.3233141.6704970
0.3249851.6692210
0.3266631.6679710
0.3283511.6667450
0.3300471.6655440
0.3317521.6643660
0.3334651.6632110
0.3341.6628571.280000e-06
0.3351881.6620791.207679e-06
0.3369191.6609671.102252e-06
0.3386591.6598779.962813e-07
0.3404091.6588078.897628e-07
0.3421671.6577577.826941e-07
0.3439351.6567266.750723e-07
0.3457111.6557145.668946e-07
0.3474971.654724.581581e-07
0.3492921.6537433.488600e-07
0.351.6533643.057500e-07
0.3510961.6527842.914122e-07
0.352911.6518422.676929e-07
0.3547331.6509162.438512e-07
0.3565651.6500062.198862e-07
0.3584071.6491121.957975e-07
0.3602581.6482321.715844e-07
0.3621191.6473681.472461e-07
0.363991.6465181.227822e-07
0.3651.6460671.095700e-07
0.365871.6456831.053767e-07
0.367761.6448619.626741e-08
0.369661.6440528.711105e-08
0.371.6439098.547000e-08
0.3715691.6432577.980699e-08
0.3734881.6424747.287953e-08
0.3754181.6417046.591629e-08
0.3773571.6409465.891708e-08
0.3793061.6402015.188172e-08
0.381.6399394.937700e-08
0.3812651.6394674.742863e-08
0.3832351.6387444.439612e-08
0.3852141.6380334.134794e-08
0.3872041.6373323.828401e-08
0.3892041.6366433.520426e-08
0.391.6363723.397900e-08
0.3912151.6359643.266080e-08
0.3932361.6352953.046782e-08
0.3952671.6346362.826350e-08
0.3973091.6339872.604780e-08
0.3993611.6333482.382065e-08
0.41.6331512.312700e-08
0.4014241.6327182.208969e-08
0.4034971.6320982.057890e-08
0.4051.6316561.948400e-08
0.4055821.6314861.935436e-08
0.4076771.6308841.888731e-08
0.4097821.630291.841785e-08
0.4118991.6297051.794596e-08
0.4140271.6291281.747163e-08
0.4161651.628561.699485e-08
0.4183151.6279991.651562e-08
0.421.6275671.614000e-08
0.4204761.6274471.607480e-08
0.4226481.6269021.577724e-08
0.4248311.6263651.547814e-08
0.4270261.6258351.517750e-08
0.4292311.6253131.487531e-08
0.4314491.6247981.457155e-08
0.4336771.624291.426623e-08
0.4359171.6237891.395933e-08
0.4361.623771.394800e-08
0.4381691.6232941.388383e-08
0.4404321.6228071.381687e-08
0.4427071.6223261.374957e-08
0.4449941.6218511.368192e-08
0.4472931.6213831.361392e-08
0.4496031.6209211.354557e-08
0.4519261.6204661.347686e-08
0.454261.6200161.340780e-08
0.4566071.6195721.333839e-08
0.4589651.6191341.326861e-08
0.461.6189441.323800e-08
0.4613361.6187021.311576e-08
0.4637191.6182751.289772e-08
0.4661141.6178541.267855e-08
0.4685221.6174381.245825e-08
0.4709421.6170281.223681e-08
0.4733751.6166231.201423e-08
0.475821.6162231.179050e-08
0.4782781.6158281.156561e-08
0.4807481.6154381.133956e-08
0.4832321.6150531.111235e-08
0.4857281.6146731.088396e-08
0.4882371.6142981.065439e-08
0.4907591.6139271.042364e-08
0.4932941.6135611.019169e-08
0.4958421.61329.958543e-09
0.4984031.6128439.724194e-09
0.51.6126239.578100e-09
0.5009781.612499.559683e-09
0.5035661.6121429.510943e-09
0.5061671.6117989.461950e-09
0.5087811.6114589.412705e-09
0.5114091.6111229.363205e-09
0.5140511.610799.313450e-09
0.5167061.6104639.263437e-09
0.5193761.6101399.213167e-09
0.5220581.6098199.162636e-09
0.5247551.6095039.111845e-09
0.5274661.609199.060791e-09
0.530191.6088829.009473e-09
0.5329291.6085778.957890e-09
0.5356821.6082758.906041e-09
0.5384491.6079788.853924e-09
0.541231.6076838.801538e-09
0.5440261.6073928.748882e-09
0.5461.607198.711700e-09
0.5468361.6071058.725038e-09
0.5496611.606828.770100e-09
0.55251.6065398.815394e-09
0.5553541.6062628.860923e-09
0.5582231.6059878.906687e-09
0.5611061.6057168.952687e-09
0.5640041.6054478.998925e-09
0.5669181.6051829.045401e-09
0.5698461.604929.092118e-09
0.572791.604669.139076e-09
0.5757491.6044049.186277e-09
0.5787231.604159.233721e-09
0.581.6040429.254100e-09
0.5817121.6038999.281418e-09
0.5847171.6036519.329368e-09
0.5877371.6034069.377565e-09
0.5907731.6031649.426011e-09
0.5938251.6029249.474708e-09
0.5968921.6026869.523656e-09
0.5999751.6024529.572856e-09
0.6030741.602229.622311e-09
0.606191.601999.672022e-09
0.6093211.6017639.721989e-09
0.6124681.6015389.772214e-09
0.6156321.6013169.822699e-09
0.6188121.6010969.873444e-09
0.621.6010159.892400e-09
0.6220091.6008799.818474e-09
0.6252221.6006639.700220e-09
0.6284511.600459.581356e-09
0.6316971.600249.461877e-09
0.634961.6000319.341782e-09
0.638241.5998259.221066e-09
0.6415371.5996219.099726e-09
0.6448511.5994188.977760e-09
0.6481821.5992188.855163e-09
0.651531.599028.731934e-09
0.6548961.5988258.608068e-09
0.6582781.5986318.483562e-09
0.661.5985338.420200e-09
0.6616791.5984398.347777e-09
0.6650971.5982498.200329e-09
0.6685321.5980618.052120e-09
0.6719861.5978747.903145e-09
0.6754571.597697.753400e-09
0.6789461.5975077.602882e-09
0.6824531.5973277.451586e-09
0.6859781.5971487.299509e-09
0.6895211.5969717.146646e-09
0.6930831.5967956.992994e-09
0.6966631.5966216.838548e-09
0.71.5964626.694600e-09
0.7002621.5964496.694644e-09
0.7038791.5962796.695250e-09
0.7075151.596116.695859e-09
0.711171.5959436.696471e-09
0.7148431.5957776.697086e-09
0.7185361.5956136.697705e-09
0.7222471.5954516.698326e-09
0.7259781.595296.698951e-09
0.7297281.595136.699579e-09
0.7334971.5949726.700211e-09
0.7372861.5948166.700845e-09
0.7410951.5946616.701483e-09
0.7449231.5945076.702125e-09
0.7487711.5943556.702769e-09
0.7526391.5942046.703417e-09
0.7565261.5940546.704068e-09
0.7604341.5939066.704723e-09
0.7643621.5937596.705381e-09
0.768311.5936136.706042e-09
0.7722791.5934696.706707e-09
0.7762681.5933266.707375e-09
0.7802781.5931846.708047e-09
0.7843091.5930436.708722e-09
0.788361.5929046.709400e-09
0.7924321.5927656.710082e-09
0.7965261.5926286.710768e-09
0.800641.5924926.711457e-09
0.8047761.5923576.712150e-09
0.8089331.5922236.712846e-09
0.8131111.5920916.713546e-09
0.8173111.5919596.714250e-09
0.8215331.5918286.714957e-09
0.8257771.5916996.715668e-09
0.8300421.591576.716382e-09
0.834331.5914436.717100e-09
0.838641.5913166.717822e-09
0.8429721.5911916.718548e-09
0.8473261.5910666.719277e-09
0.8517031.5909426.720010e-09
0.8561021.590826.720747e-09
0.8605241.5906986.721488e-09
0.864971.5905776.722232e-09
0.8694371.5904576.722981e-09
0.8739291.5903386.723733e-09
0.8784431.5902196.724489e-09
0.882981.5901026.725249e-09
0.8875411.5899856.726013e-09
0.8921261.5898696.726781e-09
0.8967341.5897546.727553e-09
0.9013661.589646.728329e-09
0.9060221.5895266.729109e-09
0.9107021.5894136.729893e-09
0.9154071.5893016.730681e-09
0.9201351.589196.731473e-09
0.9248881.5890796.732269e-09
0.9296661.5889696.733069e-09
0.9344681.588866.733873e-09
0.9392951.5887526.734682e-09
0.9441471.5886446.735495e-09
0.9490241.5885366.736311e-09
0.9539261.588436.737133e-09
0.9588531.5883236.737958e-09
0.9638061.5882186.738788e-09
0.9687851.5881136.739621e-09
0.9737891.5880096.740460e-09
0.9788191.5879056.741302e-09
0.9838751.5878026.742149e-09
0.9889571.5876996.743000e-09
0.9940661.5875976.743856e-09
0.9992011.5874956.744716e-09
1.004361.5873946.745581e-09
1.009551.5872946.746450e-09
1.014761.5871946.747323e-09
1.020011.5870946.748201e-09
1.025281.5869956.749084e-09
1.030571.5868966.749971e-09
1.035891.5867986.750862e-09
1.041251.58676.751759e-09
1.046621.5866026.752660e-09
1.052031.5865056.753565e-09
1.057461.5864086.754475e-09
1.061.5863636.754900e-09
1.062931.5863127.109737e-09
1.068421.5862167.775285e-09
1.073941.586128.444271e-09
1.079481.5860259.116712e-09
1.085061.585939.792627e-09
1.090671.5858351.047203e-08
1.09631.5857411.115495e-08
1.101961.5856471.184139e-08
1.107651.5855531.253138e-08
1.113381.5854591.322494e-08
1.119131.5853661.392207e-08
1.124911.5852731.462281e-08
1.130721.585181.532716e-08
1.136561.5850881.603516e-08
1.142431.5849961.674681e-08
1.148331.5849031.746214e-08
1.154261.5848121.818116e-08
1.160231.584721.890390e-08
1.166221.5846281.963037e-08
1.172241.5845372.036059e-08
1.17831.5844462.109459e-08
1.184381.5843552.183238e-08
1.19051.5842642.257397e-08
1.196651.5841732.331940e-08
1.202831.5840822.406868e-08
1.209051.5839912.482183e-08
1.215291.5839012.557887e-08
1.221571.583812.633982e-08
1.227881.583722.710470e-08
1.234221.583632.787353e-08
1.24061.583542.864633e-08
1.2471.5834492.942313e-08
1.253451.5833593.020394e-08
1.259921.5832693.098878e-08
1.266431.5831793.177767e-08
1.272971.5830893.257064e-08
1.279551.5829983.336771e-08
1.286161.5829083.416889e-08
1.29281.5828183.497421e-08
1.299481.5827283.578369e-08
1.306191.5826373.659736e-08
1.312941.5825473.741522e-08
1.319721.5824563.823731e-08
1.326541.5823663.906365e-08
1.333391.5822753.989426e-08
1.340281.5821844.072915e-08
1.34721.5820934.156836e-08
1.354161.5820024.241190e-08
1.361151.5819114.325980e-08
1.368181.581824.411208e-08
1.375251.5817284.496877e-08
1.382351.5816374.582988e-08
1.38951.5815454.669543e-08
1.396671.5814534.756546e-08
1.403891.581364.843998e-08
1.411141.5812684.931902e-08
1.418431.5811755.020260e-08
1.425761.5810825.109074e-08
1.433121.5809895.198347e-08
1.440521.5808965.288082e-08
1.447961.5808025.378279e-08
1.455441.5807085.468943e-08
1.462961.5806145.560075e-08
1.470521.5805195.651678e-08
1.478111.5804245.743754e-08
1.485751.5803295.836305e-08
1.493421.5802345.929335e-08
1.501141.5801386.022845e-08
1.508891.5800416.116838e-08
1.516691.5799456.211317e-08
1.524521.5798486.306284e-08
1.531.579786.372700e-08
1.53241.579756.852973e-08
1.540311.5796538.439763e-08
1.548271.5795541.003475e-07
1.556271.5794561.163797e-07
1.56431.5793571.324948e-07
1.572381.5792571.486931e-07
1.580511.5791571.649751e-07
1.588671.5790571.813412e-07
1.596881.5789561.977918e-07
1.605131.5788542.143274e-07
1.613421.5787522.309484e-07
1.621751.578652.476553e-07
1.630131.5785472.644485e-07
1.638551.5784432.813284e-07
1.647011.5783392.982955e-07
1.655521.5782343.153502e-07
1.664071.5781293.324931e-07
1.672671.5780233.497245e-07
1.681311.5779173.670449e-07
1.689991.577813.844548e-07
1.698721.5777024.019546e-07
1.70751.5775934.195448e-07
1.716321.5774844.372258e-07
1.725181.5773754.549982e-07
1.734091.5772644.728624e-07
1.743051.5771534.908189e-07
1.752061.5770415.088681e-07
1.761111.5769295.270106e-07
1.77021.5768155.452468e-07
1.779351.5767015.635772e-07
1.788541.5765865.820022e-07
1.797781.5764716.005225e-07
1.807061.5763546.191384e-07
1.81641.5762376.378504e-07
1.825781.5761196.566591e-07
1.835211.5766.755650e-07
1.844691.575886.945685e-07
1.854221.5757597.136702e-07
1.86381.5756387.328706e-07
1.873421.5755157.521701e-07
1.88311.5753927.715694e-07
1.892831.5752687.910688e-07
1.902611.5751428.106690e-07
1.912431.5750168.303704e-07
1.922311.5748898.501736e-07
1.932241.5747618.700790e-07
1.942221.5746328.900873e-07
1.952261.5745019.101990e-07
1.962341.574379.304145e-07
1.971.574279.457700e-07
1.972481.5742389.614125e-07
1.982671.5741041.025769e-06
1.992911.5739691.090459e-06
2.00321.5738341.155482e-06
2.013551.5736971.220841e-06
2.023951.5735591.286538e-06
2.03441.573421.352574e-06
2.044911.5732791.418952e-06
2.055481.5731381.485672e-06
2.066091.5729951.552737e-06
2.076771.5728511.620148e-06
2.087491.5727061.687907e-06
2.098281.5725591.756017e-06
2.109111.5724111.824478e-06
2.120011.5722621.893293e-06
2.130961.5721121.962464e-06
2.141971.571962.031991e-06
2.153031.5718062.101878e-06
2.164151.5716522.172126e-06
2.175331.5714962.242737e-06
2.186571.5713382.313712e-06
2.197861.5711792.385054e-06
2.209221.5710192.456765e-06
2.220631.5708572.528846e-06
2.23211.5706932.601299e-06
2.243631.5705282.674127e-06
2.255221.5703612.747331e-06
2.266871.5701932.820913e-06
2.278581.5700232.894875e-06
2.290351.5698522.969219e-06
2.302181.5696783.043947e-06
2.314071.5695033.119061e-06
2.3251.5693423.188100e-06
2.326021.5693273.197276e-06
2.338041.5691483.305020e-06
2.350121.5689683.413320e-06
2.362251.5687863.522180e-06
2.374461.5686033.631603e-06
2.386721.5684173.741590e-06
2.399051.568233.852146e-06
2.411441.568043.963273e-06
2.42391.5678494.074973e-06
2.436421.5676564.187251e-06
2.449011.567464.300109e-06
2.461661.5672634.413550e-06
2.474371.5670644.527577e-06
2.487151.5668634.642192e-06
2.51.5666594.757400e-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
—