Optical constants

Refractive index of N-SF5 (SCHOTT)

N-SF5: n,k 0.37–2.5 µm

Data
formula 2 + tabulated k
Range
0.37–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.37–2.5 µm
Refractive index n
1.6727
Extinction coefficient k
1.80465e-08
Permittivity ε1
2.79794
Permittivity ε2
6.03727e-08
Absorption coefficient α
0.0038594 cm⁻¹
Penetration depth δ = λ/(2πk)
5.18215e+09 nm
Abbe number Vd
32.251
Chromatic dispersion dn/dλ
-0.105139 µm⁻¹
Group index ng
1.73448
Group velocity dispersion
209.102 fs²/mm
Dispersion parameter D
-1140.76 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

# N-SF5 (SCHOTT): N-SF5
schott_n_sf5 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "N-SF5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_n_sf5.range_nm)  # (370, 2500) nm
eps = schott_n_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

Sellmeier (C in µm²) (formula 2), λ in µm
n2−1=1.52481889λ2λ2−0.011254756+0.187085527λ2λ2−0.0588995392+1.42729015λ2λ2−129.141675

Valid from 0.37 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.52481889
C30.011254756
C40.187085527
C50.0588995392
C61.42729015
C7129.141675

Comments and conditions

step 0.5 available

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -2.51e-07 1.07e-08 -2.4e-11 7.85e-07 1.15e-09 0.278
nd
1.67271
Vd
32.25
glass code
673323.286
glass status
standard
density
value: 2858
thermal expansion
value: 7.94e-06, temperature range: 243 343; value: 9.21e-06, temperature range: 293 573
dPgF
0.0088
resistance
acid: 1.0; stain: 0.0; alkali: 1.0; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 1.16e-06 K⁻¹ at 633 nm, dn/dT = 1.18e-07 K⁻¹ at 1310 nm, dn/dT = 4.47e-08 K⁻¹ at 1550 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 417 wavelengths, the same grid as the API and the library
N-SF5 (SCHOTT), N-SF5: n and k versus wavelength
λ (µm)nk
0.371.7286553.791000e-06
0.3717761.7275623.355897e-06
0.373561.7264892.918706e-06
0.3753531.7254352.479416e-06
0.3771551.7243992.038018e-06
0.3789651.7233821.594501e-06
0.381.7228111.341000e-06
0.3807841.7223831.282372e-06
0.3826121.7214011.145741e-06
0.3844481.7204361.008454e-06
0.3862941.7194888.705082e-07
0.3881481.7185557.319003e-07
0.391.7176445.934400e-07
0.3900111.7176385.931387e-07
0.3918831.7167365.412681e-07
0.3937641.715854.891485e-07
0.3956541.7149774.367787e-07
0.3975531.7141193.841575e-07
0.3994611.7132743.312838e-07
0.41.7130393.163500e-07
0.4013781.7124432.953599e-07
0.4033051.7116252.660226e-07
0.4051.7109192.402100e-07
0.4052411.710822.383785e-07
0.4071861.7100272.235790e-07
0.409141.7092472.087085e-07
0.4111041.7084791.937667e-07
0.4130771.7077221.787531e-07
0.415061.7069771.636675e-07
0.4170521.7062431.485094e-07
0.4190541.705521.332786e-07
0.421.7051831.260800e-07
0.4210651.7048081.238958e-07
0.4230861.7041061.197519e-07
0.4251171.7034151.155881e-07
0.4271581.7027331.114044e-07
0.4292081.7020621.072006e-07
0.4312681.70141.029765e-07
0.4333381.7007479.873226e-08
0.4354181.7001049.446760e-08
0.4361.6999269.327400e-08
0.4375081.699479.155337e-08
0.4396081.6988458.915697e-08
0.4417181.6982298.674907e-08
0.4438381.6976218.432961e-08
0.4459681.6970218.189854e-08
0.4481091.696437.945580e-08
0.450261.6958477.700134e-08
0.4524211.6952727.453509e-08
0.4545921.6947047.205701e-08
0.4567741.6941446.956703e-08
0.4589671.6935926.706510e-08
0.461.6933356.588600e-08
0.461171.6930476.508992e-08
0.4633831.6925096.358345e-08
0.4656071.6919786.206975e-08
0.4678421.6914556.054878e-08
0.4700881.6909385.902052e-08
0.4723441.6904285.748491e-08
0.4746111.6899245.594194e-08
0.4768891.6894275.439156e-08
0.4791781.6889365.283374e-08
0.4814781.6884515.126844e-08
0.4837891.6879734.969563e-08
0.4861111.6875014.811527e-08
0.4884451.6870344.652732e-08
0.4907891.6865734.493175e-08
0.4931451.6861194.332852e-08
0.4955121.6856694.171760e-08
0.497891.6852264.009895e-08
0.51.6848383.866300e-08
0.500281.6847873.855542e-08
0.5026811.6843543.763246e-08
0.5050941.6839273.670506e-08
0.5075181.6835043.577321e-08
0.5099541.6830873.483689e-08
0.5124021.6826753.389608e-08
0.5148611.6822673.295075e-08
0.5173331.6818653.200088e-08
0.5198161.6814673.104645e-08
0.5223111.6810743.008744e-08
0.5248181.6806862.912383e-08
0.5273371.6803022.815559e-08
0.5298681.6799232.718271e-08
0.5324111.6795482.620515e-08
0.5349671.6791772.522291e-08
0.5375341.6788112.423595e-08
0.5401141.6784492.324425e-08
0.5427071.6780912.224779e-08
0.5453121.6777372.124655e-08
0.5461.6776442.098200e-08
0.5479291.6773872.073853e-08
0.5505591.6770412.040662e-08
0.5532021.6766992.007311e-08
0.5558571.6763611.973800e-08
0.5585251.6760271.940128e-08
0.5612061.6756961.906295e-08
0.5638991.675371.872299e-08
0.5666061.6750461.838140e-08
0.5693261.6747271.803817e-08
0.5720581.674411.769329e-08
0.5748041.6740981.734676e-08
0.5775631.6737881.699856e-08
0.581.6735191.669100e-08
0.5803351.6734821.675078e-08
0.5831211.673181.724758e-08
0.585921.6728811.774676e-08
0.5887321.6725841.824833e-08
0.5915581.6722911.875231e-08
0.5943971.6720021.925871e-08
0.597251.6717151.976754e-08
0.6001171.6714312.027882e-08
0.6029971.671152.079254e-08
0.6058911.6708732.130874e-08
0.60881.6705982.182741e-08
0.6117221.6703262.234857e-08
0.6146581.6700572.287223e-08
0.6176081.669792.339841e-08
0.621.6695772.382500e-08
0.6205731.6695272.387746e-08
0.6235511.6692662.415037e-08
0.6265441.6690072.442460e-08
0.6295511.6687522.470014e-08
0.6325731.6684992.497701e-08
0.6356091.6682482.525520e-08
0.638661.6682.553473e-08
0.6417261.6677552.581561e-08
0.6448061.6675122.609783e-08
0.6479011.6672712.638140e-08
0.651011.6670332.666634e-08
0.6541351.6667972.695264e-08
0.6572751.6665642.724032e-08
0.661.6663642.749000e-08
0.660431.6663322.745945e-08
0.66361.6661032.723406e-08
0.6667851.6658772.700760e-08
0.6699851.6656522.678005e-08
0.6732011.665432.655140e-08
0.6764321.6652092.632166e-08
0.6796791.6649912.609082e-08
0.6829411.6647752.585887e-08
0.6862191.6645612.562580e-08
0.6895131.6643492.539162e-08
0.6928231.6641392.515631e-08
0.6961481.6639312.491987e-08
0.6994891.6637252.468230e-08
0.71.6636932.464600e-08
0.7028471.663522.461167e-08
0.706221.6633182.457099e-08
0.709611.6631172.453012e-08
0.7130161.6629192.448905e-08
0.7164381.6627222.444778e-08
0.7198771.6625272.440631e-08
0.7233321.6623332.436465e-08
0.7268041.6621422.432278e-08
0.7302931.6619522.428072e-08
0.7337981.6617642.423845e-08
0.737321.6615772.419598e-08
0.7408591.6613922.415331e-08
0.7444151.6612092.411043e-08
0.7479881.6610272.406734e-08
0.7515781.6608472.402405e-08
0.7551861.6606682.398055e-08
0.7588111.6604912.393684e-08
0.7624531.6603152.389292e-08
0.7661121.6601412.384879e-08
0.769791.6599682.380445e-08
0.7734841.6597972.375990e-08
0.7771971.6596272.371513e-08
0.7809271.6594592.367015e-08
0.7846761.6592912.362495e-08
0.7884421.6591262.357954e-08
0.7922261.6589612.353390e-08
0.7960291.6587982.348805e-08
0.799851.6586362.344198e-08
0.8036891.6584762.339569e-08
0.8075461.6583162.334917e-08
0.8114221.6581582.330243e-08
0.8153171.6580022.325547e-08
0.8192311.6578462.320828e-08
0.8231631.6576922.316086e-08
0.8271141.6575382.311322e-08
0.8310841.6573862.306535e-08
0.8350731.6572352.301725e-08
0.8390811.6570852.296892e-08
0.8431081.6569362.292035e-08
0.8471551.6567892.287155e-08
0.8512211.6566422.282252e-08
0.8553071.6564962.277326e-08
0.8594121.6563522.272375e-08
0.8635371.6562082.267401e-08
0.8676821.6560662.262403e-08
0.8718471.6559242.257381e-08
0.8760321.6557842.252335e-08
0.8802361.6556442.247265e-08
0.8844611.6555052.242170e-08
0.8887071.6553672.237051e-08
0.8929721.655232.231908e-08
0.8972581.6550942.226739e-08
0.9015651.6549592.221546e-08
0.9058921.6548252.216328e-08
0.910241.6546912.211085e-08
0.9146091.6545592.205817e-08
0.9189991.6544272.200523e-08
0.923411.6542962.195204e-08
0.9278431.6541662.189860e-08
0.9322961.6540362.184490e-08
0.9367711.6539082.179094e-08
0.9412671.653782.173672e-08
0.9457851.6536522.168224e-08
0.9503251.6535262.162750e-08
0.9548861.65342.157250e-08
0.9594691.6532752.151723e-08
0.9640751.653152.146170e-08
0.9687021.6530272.140590e-08
0.9733521.6529032.134984e-08
0.9780231.6527812.129350e-08
0.9827181.6526592.123689e-08
0.9874351.6525382.118002e-08
0.9921741.6524172.112287e-08
0.9969361.6522972.106544e-08
1.001721.6521772.100774e-08
1.006531.6520582.094976e-08
1.011361.651942.089151e-08
1.016221.6518222.083297e-08
1.021091.6517052.077416e-08
1.025991.6515882.071506e-08
1.030921.6514712.065568e-08
1.035871.6513552.059601e-08
1.040841.651242.053606e-08
1.045831.6511252.047581e-08
1.050851.6510112.041528e-08
1.05591.6508962.035446e-08
1.061.6508042.030500e-08
1.060971.6507832.051672e-08
1.066061.650672.163267e-08
1.071181.6505572.275397e-08
1.076321.6504442.388066e-08
1.081481.6503322.501275e-08
1.086671.650222.615028e-08
1.091891.6501092.729327e-08
1.097131.6499982.844174e-08
1.10241.6498872.959573e-08
1.107691.6497773.075526e-08
1.1131.6496673.192035e-08
1.118351.6495573.309103e-08
1.123711.6494483.426733e-08
1.129111.6493383.544928e-08
1.134531.6492293.663690e-08
1.139971.6491213.783022e-08
1.145451.6490123.902927e-08
1.150941.6489044.023408e-08
1.156471.6487964.144467e-08
1.162021.6486884.266106e-08
1.16761.648584.388330e-08
1.17321.6484734.511140e-08
1.178831.6483664.634540e-08
1.184491.6482594.758532e-08
1.190171.6481524.883119e-08
1.195891.6480455.008305e-08
1.201631.6479385.134091e-08
1.207391.6478325.260480e-08
1.213191.6477255.387477e-08
1.219011.6476195.515083e-08
1.224861.6475135.643301e-08
1.230741.6474075.772135e-08
1.236651.64735.901588e-08
1.242591.6471946.031661e-08
1.248551.6470886.162359e-08
1.254541.6469826.293685e-08
1.260561.6468766.425640e-08
1.266621.6467716.558229e-08
1.272691.6466656.691455e-08
1.27881.6465596.825320e-08
1.284941.6464536.959827e-08
1.291111.6463477.094980e-08
1.297311.6462417.230782e-08
1.303531.6461357.367235e-08
1.309791.6460287.504344e-08
1.316081.6459227.642110e-08
1.322391.6458167.780538e-08
1.328741.645717.919630e-08
1.335121.6456038.059390e-08
1.341531.6454968.199821e-08
1.347971.645398.340926e-08
1.354441.6452838.482708e-08
1.360941.6451768.625170e-08
1.367471.6450698.768317e-08
1.374031.6449618.912150e-08
1.380631.6448549.056674e-08
1.387251.6447469.201891e-08
1.393911.6446389.347806e-08
1.40061.644539.494421e-08
1.407331.6444229.641739e-08
1.414081.6443139.789765e-08
1.420871.6442049.938501e-08
1.427691.6440951.008795e-07
1.434541.6439861.023812e-07
1.441431.6438761.038901e-07
1.448341.6437661.054062e-07
1.45531.6436561.069296e-07
1.462281.6435451.084603e-07
1.46931.6434351.099984e-07
1.476351.6433231.115438e-07
1.483441.6432121.130967e-07
1.490561.64311.146570e-07
1.497711.6429881.162248e-07
1.50491.6428751.178001e-07
1.512131.6427621.193830e-07
1.519381.6426491.209735e-07
1.526681.6425351.225716e-07
1.531.6424831.233000e-07
1.5341.6424211.294725e-07
1.541371.6423061.408232e-07
1.548771.6421911.522285e-07
1.55621.6420751.636885e-07
1.563671.6419591.752036e-07
1.571171.6418421.867738e-07
1.578711.6417251.983997e-07
1.586291.6416082.100813e-07
1.593911.641492.218190e-07
1.601561.6413712.336130e-07
1.609241.6412522.454637e-07
1.616971.6411322.573712e-07
1.624731.6410122.693359e-07
1.632531.6408912.813580e-07
1.640361.6407692.934378e-07
1.648241.6406473.055756e-07
1.656151.6405253.177717e-07
1.66411.6404013.300263e-07
1.672081.6402773.423397e-07
1.680111.6401533.547122e-07
1.688171.6400273.671441e-07
1.696281.6399013.796356e-07
1.704421.6397753.921872e-07
1.71261.6396474.047989e-07
1.720821.6395194.174712e-07
1.729081.639394.302044e-07
1.737381.6392614.429986e-07
1.745721.639134.558543e-07
1.75411.6389994.687716e-07
1.762521.6388674.817510e-07
1.770981.6387344.947927e-07
1.779481.6386015.078969e-07
1.788021.6384665.210641e-07
1.79661.6383315.342944e-07
1.805221.6381955.475883e-07
1.813891.6380585.609460e-07
1.822591.637925.743677e-07
1.831341.6377815.878539e-07
1.840131.6376426.014049e-07
1.848971.6375016.150209e-07
1.857841.6373596.287022e-07
1.866761.6372176.424492e-07
1.875721.6370736.562622e-07
1.884721.6369296.701415e-07
1.893771.6367836.840874e-07
1.902861.6366376.981002e-07
1.911991.6364897.121803e-07
1.921171.636347.263280e-07
1.930391.6361917.405435e-07
1.939651.636047.548274e-07
1.948961.6358887.691797e-07
1.958321.6357357.836010e-07
1.967721.6355817.980915e-07
1.971.6355438.016100e-07
1.977161.6354258.544253e-07
1.986651.6352699.244052e-07
1.996191.6351119.947209e-07
2.005771.6349521.065374e-06
2.01541.6347921.136366e-06
2.025071.634631.207700e-06
2.034791.6344681.279375e-06
2.044561.6343041.351395e-06
2.054371.6341391.423760e-06
2.064231.6339721.496472e-06
2.074141.6338041.569534e-06
2.084091.6336351.642946e-06
2.09411.6334641.716711e-06
2.104151.6332921.790829e-06
2.114251.6331191.865304e-06
2.12441.6329441.940135e-06
2.134591.6327672.015326e-06
2.144841.632592.090878e-06
2.155131.632412.166793e-06
2.165481.632232.243072e-06
2.175871.6320472.319717e-06
2.186321.6318632.396730e-06
2.196811.6316782.474113e-06
2.207351.6314912.551867e-06
2.217951.6313022.629994e-06
2.228591.6311122.708496e-06
2.239291.630922.787375e-06
2.250041.6307262.866633e-06
2.260841.6305312.946271e-06
2.271691.6303343.026291e-06
2.282591.6301353.106695e-06
2.293551.6299343.187486e-06
2.304561.6297323.268664e-06
2.315621.6295273.350231e-06
2.3251.6293543.419400e-06
2.326731.6293213.440180e-06
2.33791.6291133.573971e-06
2.349121.6289043.708405e-06
2.36041.6286923.843483e-06
2.371731.6284783.979210e-06
2.383111.6282624.115589e-06
2.394551.6280454.252622e-06
2.406041.6278254.390313e-06
2.417591.6276034.528665e-06
2.42921.6273794.667680e-06
2.440861.6271534.807363e-06
2.452571.6269254.947717e-06
2.464341.6266955.088744e-06
2.476171.6264625.230448e-06
2.488061.6262285.372832e-06
2.51.6259915.515900e-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
—