Optical constants

Refractive index of N-SF10 (SCHOTT)

N-SF10: n,k 0.38–2.5 µm

Data
formula 2 + tabulated k
Range
0.38–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.38–2.5 µm
Refractive index n
1.72827
Extinction coefficient k
4.19917e-08
Permittivity ε1
2.98692
Permittivity ε2
1.45146e-07
Absorption coefficient α
0.00898031 cm⁻¹
Penetration depth δ = λ/(2πk)
2.22709e+09 nm
Abbe number Vd
28.533
Chromatic dispersion dn/dλ
-0.128163 µm⁻¹
Group index ng
1.80358
Group velocity dispersion
260.219 fs²/mm
Dispersion parameter D
-1419.63 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-SF10 (SCHOTT): N-SF10
schott_n_sf10 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "N-SF10", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_n_sf10.range_nm)  # (380, 2500) nm
eps = schott_n_sf10.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=1.62153902λ2λ2−0.0122241457+0.256287842λ2λ2−0.0595736775+1.64447552λ2λ2−147.468793

Valid from 0.38 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.62153902
C30.0122241457
C40.256287842
C50.0595736775
C61.64447552
C7147.468793

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -4.68e-06 7.41e-09 -1.89e-11 9.49e-07 1.42e-09 0.279
nd
1.72828
Vd
28.53
glass code
728285.305
glass status
standard
density
value: 3050
thermal expansion
value: 9.4e-06, temperature range: 243 343; value: 1.08e-05, temperature range: 293 573
dPgF
0.0108
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 = -9.95e-07 K⁻¹ at 633 nm, dn/dT = -2.27e-06 K⁻¹ at 1310 nm, dn/dT = -2.35e-06 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 416 wavelengths, the same grid as the API and the library
N-SF10 (SCHOTT), N-SF10: n and k versus wavelength
λ (µm)nk
0.381.7905791.946700e-06
0.3817981.7893461.774875e-06
0.3836051.7881341.602236e-06
0.3854211.7869441.428780e-06
0.3872451.7857741.254504e-06
0.3890781.7846241.079403e-06
0.391.7840559.912700e-07
0.3909191.7834949.523956e-07
0.3927691.7823838.741297e-07
0.3946281.781297.954933e-07
0.3964951.7802167.164848e-07
0.3983721.7791596.371023e-07
0.41.778265.682300e-07
0.4002571.7781195.626502e-07
0.4021521.7770965.215746e-07
0.4040551.776094.803047e-07
0.4051.7755984.598100e-07
0.4059671.77514.472699e-07
0.4078881.7741254.223571e-07
0.4098191.7731653.973263e-07
0.4117581.7722213.721770e-07
0.4137071.7712913.469087e-07
0.4156651.7703763.215209e-07
0.4176321.7694742.960129e-07
0.4196091.7685862.703842e-07
0.421.7684132.653100e-07
0.4215951.7677122.581306e-07
0.423591.766852.491469e-07
0.4255951.7660022.401207e-07
0.4276091.7651662.310518e-07
0.4296321.7643422.219400e-07
0.4316661.763532.127851e-07
0.4337091.762732.035868e-07
0.4357611.7619421.943450e-07
0.4361.7618511.932700e-07
0.4378241.7611651.890774e-07
0.4398961.7603991.843133e-07
0.4419771.7596441.795268e-07
0.4440691.7588991.747175e-07
0.4461711.7581651.698855e-07
0.4482821.7574411.650307e-07
0.4504041.7567271.601528e-07
0.4525361.7560231.552519e-07
0.4546771.7553291.503278e-07
0.4568291.7546441.453804e-07
0.4589911.7539681.404096e-07
0.461.7536571.380900e-07
0.4611631.7533021.366924e-07
0.4633461.7526441.340703e-07
0.4655391.7519951.314359e-07
0.4677421.7513551.287890e-07
0.4699561.7507241.261295e-07
0.472181.75011.234575e-07
0.4744141.7494851.207728e-07
0.476661.7488781.180755e-07
0.4789161.7482791.153653e-07
0.4811821.7476871.126424e-07
0.4834591.7471031.099065e-07
0.4857471.7465271.071577e-07
0.4880461.7459571.043959e-07
0.4903561.7453961.016210e-07
0.4926771.7448419.883299e-08
0.4950081.7442939.603179e-08
0.4973511.7437529.321732e-08
0.4997051.7432189.038954e-08
0.51.7431519.003500e-08
0.502071.742698.812424e-08
0.5044461.7421698.593072e-08
0.5068331.7416548.372681e-08
0.5092321.7411468.151248e-08
0.5116421.7406447.928766e-08
0.5140631.7401487.705232e-08
0.5164961.7396577.480640e-08
0.5189411.7391737.254984e-08
0.5213971.7386957.028261e-08
0.5238641.7382226.800465e-08
0.5263441.7377556.571591e-08
0.5288351.7372946.341634e-08
0.5313371.7368386.110588e-08
0.5338521.7363875.878449e-08
0.5363781.7359425.645211e-08
0.5389171.7355025.410869e-08
0.5414681.7350675.175419e-08
0.544031.7346374.938854e-08
0.5461.7343114.757000e-08
0.5466051.7342124.745438e-08
0.5491921.7337924.695983e-08
0.5517911.7333764.646293e-08
0.5544021.7329664.596369e-08
0.5570261.732564.546208e-08
0.5596621.7321594.495810e-08
0.5623111.7317624.445173e-08
0.5649721.731374.394297e-08
0.5676461.7309824.343180e-08
0.5703321.7305994.291821e-08
0.5730321.7302194.240219e-08
0.5757441.7298444.188372e-08
0.5784681.7294734.136281e-08
0.581.7292684.107000e-08
0.5812061.7291074.121627e-08
0.5839571.7287444.154985e-08
0.586721.7283854.188502e-08
0.5894971.728034.222177e-08
0.5922871.7276794.256011e-08
0.595091.7273324.290005e-08
0.5979061.7269894.324161e-08
0.6007361.7266494.358478e-08
0.6035791.7263134.392957e-08
0.6064361.725984.427600e-08
0.6093061.7256514.462406e-08
0.6121891.7253264.497378e-08
0.6150871.7250044.532514e-08
0.6179981.7246854.567817e-08
0.621.7244694.592100e-08
0.6209231.724374.603894e-08
0.6238611.7240584.641464e-08
0.6268141.7237494.679212e-08
0.629781.7234434.717139e-08
0.6327611.7231414.755245e-08
0.6357551.7228424.793531e-08
0.6387641.7225454.831999e-08
0.6417871.7222524.870649e-08
0.6448251.7219624.909481e-08
0.6478761.7216754.948498e-08
0.6509421.7213914.987699e-08
0.6540231.7211095.027085e-08
0.6571181.720835.066658e-08
0.661.7205755.103500e-08
0.6602281.7205555.096178e-08
0.6633531.7202814.995955e-08
0.6664921.7200114.895258e-08
0.6696471.7197434.794085e-08
0.6728161.7194784.692433e-08
0.6761.7192164.590299e-08
0.6791991.7189564.487683e-08
0.6824141.7186994.384580e-08
0.6856431.7184444.280990e-08
0.6888881.7181914.176909e-08
0.6921491.7179414.072336e-08
0.6954241.7176943.967268e-08
0.6987151.7174493.861703e-08
0.71.7173543.820500e-08
0.7020221.7172063.818088e-08
0.7053451.7169653.814125e-08
0.7086831.7167273.810143e-08
0.7120371.7164913.806143e-08
0.7154071.7162573.802123e-08
0.7187921.7160253.798085e-08
0.7221941.7157963.794027e-08
0.7256121.7155683.789951e-08
0.7290461.7153433.785854e-08
0.7324961.715123.781739e-08
0.7359631.7148993.777604e-08
0.7394461.7146793.773450e-08
0.7429461.7144623.769275e-08
0.7464621.7142473.765081e-08
0.7499951.7140343.760868e-08
0.7535441.7138223.756634e-08
0.757111.7136133.752380e-08
0.7606931.7134053.748106e-08
0.7642931.7131993.743812e-08
0.7679111.7129953.739498e-08
0.7715451.7127933.735163e-08
0.7751961.7125923.730807e-08
0.7788651.7123933.726431e-08
0.7825511.7121963.722035e-08
0.7862551.7120013.717617e-08
0.7899761.7118073.713179e-08
0.7937141.7116153.708719e-08
0.7974711.7114243.704239e-08
0.8012451.7112353.699737e-08
0.8050371.7110483.695214e-08
0.8088471.7108623.690670e-08
0.8126751.7106783.686104e-08
0.8165211.7104953.681516e-08
0.8203851.7103133.676907e-08
0.8242681.7101343.672276e-08
0.8281691.7099553.667623e-08
0.8320881.7097783.662948e-08
0.8360261.7096023.658251e-08
0.8399831.7094283.653531e-08
0.8439581.7092553.648790e-08
0.8479531.7090843.644026e-08
0.8519661.7089133.639239e-08
0.8559981.7087443.634429e-08
0.8600491.7085773.629597e-08
0.8641191.708413.624742e-08
0.8682091.7082453.619864e-08
0.8723181.7080813.614963e-08
0.8764461.7079183.610039e-08
0.8805941.7077573.605092e-08
0.8847611.7075963.600121e-08
0.8889491.7074373.595126e-08
0.8931561.7072793.590108e-08
0.8973831.7071223.585066e-08
0.901631.7069663.580000e-08
0.9058971.7068113.574911e-08
0.9101841.7066573.569797e-08
0.9144921.7065053.564659e-08
0.918821.7063533.559497e-08
0.9231681.7062023.554310e-08
0.9275371.7060533.549099e-08
0.9319271.7059043.543863e-08
0.9363371.7057563.538602e-08
0.9407691.705613.533316e-08
0.9452211.7054643.528006e-08
0.9496951.7053193.522670e-08
0.9541891.7051753.517309e-08
0.9587051.7050323.511922e-08
0.9632421.7048893.506511e-08
0.9678011.7047483.501073e-08
0.9723811.7046083.495610e-08
0.9769831.7044683.490121e-08
0.9816071.7043293.484606e-08
0.9862521.7041913.479064e-08
0.990921.7040543.473497e-08
0.995611.7039173.467903e-08
1.000321.7037813.462283e-08
1.005061.7036463.456636e-08
1.009811.7035123.450963e-08
1.014591.7033783.445262e-08
1.019391.7032453.439535e-08
1.024221.7031133.433780e-08
1.029061.7029823.427999e-08
1.033941.7028513.422190e-08
1.038831.702723.416353e-08
1.043741.7025913.410489e-08
1.048681.7024623.404597e-08
1.053651.7023333.398677e-08
1.058631.7022063.392729e-08
1.061.7021713.391100e-08
1.063641.7020783.421878e-08
1.068681.7019523.464393e-08
1.073741.7018263.507109e-08
1.078821.70173.550027e-08
1.083921.7015753.593148e-08
1.089051.7014513.636473e-08
1.094211.7013273.680003e-08
1.099391.7012033.723740e-08
1.104591.701083.767683e-08
1.109821.7009583.811834e-08
1.115071.7008353.856194e-08
1.120351.7007143.900765e-08
1.125651.7005933.945546e-08
1.130981.7004723.990539e-08
1.136331.7003514.035745e-08
1.141711.7002314.081165e-08
1.147111.7001124.126800e-08
1.152541.6999924.172650e-08
1.157991.6998734.218718e-08
1.163471.6997554.265004e-08
1.168981.6996374.311509e-08
1.174511.6995194.358234e-08
1.180071.6994014.405180e-08
1.185651.6992844.452349e-08
1.191271.6991674.499740e-08
1.19691.699054.547356e-08
1.202571.6989334.595197e-08
1.208261.6988174.643265e-08
1.213981.6987014.691560e-08
1.219721.6985854.740084e-08
1.22551.698474.788837e-08
1.23131.6983554.837821e-08
1.237121.6982394.887037e-08
1.242981.6981244.936486e-08
1.248861.698014.986168e-08
1.254771.6978955.036086e-08
1.260711.697785.086240e-08
1.266681.6976665.136632e-08
1.272671.6975525.187262e-08
1.278691.6974385.238132e-08
1.284751.6973245.289242e-08
1.290831.697215.340594e-08
1.296931.6970965.392190e-08
1.303071.6969825.444029e-08
1.309241.6968685.496114e-08
1.315441.6967555.548445e-08
1.321661.6966415.601024e-08
1.327921.6965285.653852e-08
1.33421.6964145.706930e-08
1.340521.69635.760259e-08
1.346861.6961875.813841e-08
1.353231.6960735.867676e-08
1.359641.695965.921766e-08
1.366071.6958465.976111e-08
1.372541.6957326.030714e-08
1.379031.6956186.085576e-08
1.385561.6955046.140697e-08
1.392121.6953916.196079e-08
1.398711.6952766.251723e-08
1.405331.6951626.307630e-08
1.411981.6950486.363802e-08
1.418661.6949346.420240e-08
1.425371.6948196.476945e-08
1.432121.6947046.533918e-08
1.43891.694596.591161e-08
1.445711.6944746.648675e-08
1.452551.6943596.706461e-08
1.459421.6942446.764520e-08
1.466331.6941286.822855e-08
1.473271.6940126.881465e-08
1.480241.6938966.940353e-08
1.487251.693786.999519e-08
1.494291.6936637.058966e-08
1.501361.6935477.118693e-08
1.508461.6934297.178704e-08
1.51561.6933127.238998e-08
1.522771.6931947.299578e-08
1.529981.6930767.360445e-08
1.531.6930767.360600e-08
1.537221.6929587.986762e-08
1.54451.6928398.617490e-08
1.551811.692729.251204e-08
1.559151.6926019.887916e-08
1.566531.6924811.052764e-07
1.573941.6923611.117040e-07
1.581391.692241.181619e-07
1.588881.692121.246504e-07
1.59641.6919981.311697e-07
1.603951.6918761.377197e-07
1.611541.6917541.443008e-07
1.619171.6916321.509130e-07
1.626831.6915081.575566e-07
1.634531.6913851.642315e-07
1.642271.6912611.709381e-07
1.650041.6911361.776764e-07
1.657851.6910111.844465e-07
1.66571.6908851.912488e-07
1.673581.6907591.980832e-07
1.68151.6906322.049499e-07
1.689461.6905052.118492e-07
1.697451.6903772.187811e-07
1.705491.6902492.257458e-07
1.713561.690122.327435e-07
1.721671.689992.397743e-07
1.729811.689862.468383e-07
1.7381.6897292.539358e-07
1.746231.6895972.610669e-07
1.754491.6894652.682318e-07
1.762791.6893322.754305e-07
1.771141.6891982.826633e-07
1.779521.6890642.899304e-07
1.787941.6889292.972318e-07
1.79641.6887933.045678e-07
1.80491.6886563.119385e-07
1.813451.6885193.193441e-07
1.822031.6883813.267848e-07
1.830651.6882423.342606e-07
1.839321.6881023.417718e-07
1.848021.6879623.493186e-07
1.856771.687823.569011e-07
1.865551.6876783.645195e-07
1.874381.6875353.721740e-07
1.883251.6873913.798646e-07
1.892171.6872463.875917e-07
1.901121.6871013.953553e-07
1.910121.6869544.031557e-07
1.919161.6868064.109930e-07
1.928241.6866584.188674e-07
1.937371.6865084.267791e-07
1.946541.6863584.347281e-07
1.955751.6862064.427149e-07
1.9651.6860544.507394e-07
1.971.6859714.550700e-07
1.97431.68594.741788e-07
1.983651.6857465.156578e-07
1.993041.685595.573330e-07
2.002471.6854335.992055e-07
2.011951.6852756.412761e-07
2.021471.6851166.835458e-07
2.031031.6849567.260156e-07
2.040651.6847957.686864e-07
2.05031.6846338.115591e-07
2.060011.6844698.546348e-07
2.069761.6843048.979143e-07
2.079551.6841389.413986e-07
2.089391.6839719.850887e-07
2.099281.6838031.028986e-06
2.109221.6836331.073090e-06
2.11921.6834621.117404e-06
2.129231.683291.161927e-06
2.139311.6831161.206660e-06
2.149431.6829411.251606e-06
2.15961.6827651.296764e-06
2.169821.6825871.342136e-06
2.180091.6824081.387723e-06
2.190411.6822271.433525e-06
2.200781.6820451.479544e-06
2.211191.6818621.525781e-06
2.221661.6816771.572237e-06
2.232171.6814911.618913e-06
2.242741.6813031.665809e-06
2.253351.6811131.712928e-06
2.264011.6809221.760269e-06
2.274731.680731.807835e-06
2.285491.6805351.855626e-06
2.296311.680341.903642e-06
2.307181.6801421.951887e-06
2.31811.6799432.000359e-06
2.3251.6798172.031000e-06
2.329071.6797422.060655e-06
2.340091.679542.141001e-06
2.351171.6793352.221727e-06
2.362291.6791292.302836e-06
2.373471.6789222.384328e-06
2.384711.6787122.466205e-06
2.395991.6785012.548470e-06
2.407331.6782872.631125e-06
2.418721.6780722.714171e-06
2.430171.6778552.797609e-06
2.441671.6776362.881443e-06
2.453231.6774152.965673e-06
2.464841.6771923.050302e-06
2.47651.6769673.135332e-06
2.488221.676743.220764e-06
2.51.6765113.306600e-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
—