Optical constants

Refractive index of N-SK10 (SCHOTT)

N-SK10: n,k 0.334–2.5 µm

Data
formula 2 + tabulated k
Range
0.334–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.334–2.5 µm
Refractive index n
1.62278
Extinction coefficient k
8.25031e-09
Permittivity ε1
2.63341
Permittivity ε2
2.67768e-08
Absorption coefficient α
0.0017644 cm⁻¹
Penetration depth δ = λ/(2πk)
1.13353e+10 nm
Abbe number Vd
56.982
Chromatic dispersion dn/dλ
-0.0563416 µm⁻¹
Group index ng
1.65588
Group velocity dispersion
100.124 fs²/mm
Dispersion parameter D
-546.229 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-SK10 (SCHOTT): N-SK10
schott_n_sk10 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "N-SK10", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_n_sk10.range_nm)  # (334, 2500) nm
eps = schott_n_sk10.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=1.34972093λ2λ2−0.00736272269+0.238587973λ2λ2−0.0253765327+0.9667336λ2λ2−103.502909

Valid from 0.334 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.34972093
C30.00736272269
C40.238587973
C50.0253765327
C60.9667336
C7103.502909

Comments and conditions

inquiry glass

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 5.05e-07 1.16e-08 -1.53e-11 4.9e-07 5.1e-10 0.183
nd
1.62278
Vd
56.98
glass code
623570.364
glass status
special
density
value: 3639
thermal expansion
value: 6.83e-06, temperature range: 243 343; value: 7.84e-06, temperature range: 293 573
dPgF
-0.0005
resistance
acid: 52.2; stain: 3.0; alkali: 2.0; climatic: 3.0; phosphate: 2.2

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 9.23e-07 K⁻¹ at 633 nm, dn/dT = 3.92e-07 K⁻¹ at 1310 nm, dn/dT = 3.49e-07 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 420 wavelengths, the same grid as the API and the library
N-SK10 (SCHOTT), N-SK10: n and k versus wavelength
λ (µm)nk
0.3341.6591862.346700e-06
0.3356891.6585992.175857e-06
0.3373871.6580212.004150e-06
0.3390931.657451.831575e-06
0.3408081.6568861.658127e-06
0.3425321.6563291.483801e-06
0.3442641.655781.308594e-06
0.3460061.6552381.132501e-06
0.3477561.6547029.555168e-07
0.3495141.6541747.776378e-07
0.351.6540297.285300e-07
0.3512821.6536526.896672e-07
0.3530591.6531366.358157e-07
0.3548441.6526285.816919e-07
0.3566391.6521255.272943e-07
0.3584431.6516294.726215e-07
0.3602561.6511394.176723e-07
0.3620781.6506553.624451e-07
0.3639091.6501773.069386e-07
0.3651.6498972.738700e-07
0.365751.6497052.635970e-07
0.3675991.6492392.382434e-07
0.3694591.6487792.127615e-07
0.371.6486462.053400e-07
0.3713271.6483241.932288e-07
0.3732051.6478751.760899e-07
0.3750931.6474311.588643e-07
0.376991.6469931.415516e-07
0.3788961.646561.241513e-07
0.381.6463121.140800e-07
0.3808131.6461321.099835e-07
0.3827391.6457091.002757e-07
0.3846741.6452929.051872e-08
0.386621.6448798.071243e-08
0.3885751.6444717.085655e-08
0.391.6441796.367600e-08
0.3905411.6440696.233006e-08
0.3925161.6436715.741298e-08
0.3945011.6432775.247103e-08
0.3964961.6428894.750409e-08
0.3985021.6425044.251202e-08
0.41.6422223.878200e-08
0.4005171.6421253.814668e-08
0.4025431.641753.565795e-08
0.4045791.6413793.315663e-08
0.4051.6413033.263900e-08
0.4066251.6410133.129208e-08
0.4086811.6406512.958733e-08
0.4107481.6402932.787396e-08
0.4128261.6399392.615193e-08
0.4149141.6395892.442118e-08
0.4170121.6392442.268169e-08
0.4191211.6389022.093339e-08
0.421.6387612.020500e-08
0.4212411.6385642.004638e-08
0.4233721.638231.977408e-08
0.4255131.63791.950040e-08
0.4276651.6375741.922533e-08
0.4298281.6372511.894888e-08
0.4320021.6369321.867103e-08
0.4341871.6366171.839177e-08
0.4361.6363591.816000e-08
0.4363831.6363051.810510e-08
0.438591.6359961.778839e-08
0.4408081.6356921.747007e-08
0.4430371.635391.715015e-08
0.4452781.6350921.682860e-08
0.447531.6347971.650544e-08
0.4497941.6345061.618063e-08
0.4520681.6342171.585419e-08
0.4543551.6339321.552609e-08
0.4566531.633651.519633e-08
0.4589621.6333711.486491e-08
0.461.6332481.471600e-08
0.4612841.6330961.449977e-08
0.4636171.6328231.410676e-08
0.4659611.6325531.371176e-08
0.4683181.6322861.331477e-08
0.4706871.6320221.291576e-08
0.4730671.6317611.251474e-08
0.475461.6315031.211169e-08
0.4778641.6312471.170660e-08
0.4802811.6309951.129946e-08
0.482711.6307451.089027e-08
0.4851521.6304971.047900e-08
0.4876051.6302531.006565e-08
0.4900721.630019.650216e-09
0.492551.6297719.232678e-09
0.4950411.6295348.813028e-09
0.4975451.6292998.391255e-09
0.51.6290737.977700e-09
0.5000611.6290677.976348e-09
0.5025911.6288387.920713e-09
0.5051321.6286117.864797e-09
0.5076871.6283867.808597e-09
0.5102551.6281637.752114e-09
0.5128361.6279437.695344e-09
0.5154291.6277267.638288e-09
0.5180361.627517.580943e-09
0.5206561.6272977.523308e-09
0.5232891.6270857.465382e-09
0.5259361.6268767.407162e-09
0.5285961.626677.348648e-09
0.531271.6264657.289838e-09
0.5339561.6262627.230731e-09
0.5366571.6260627.171325e-09
0.5393711.6258637.111618e-09
0.5420991.6256667.051610e-09
0.5448411.6254726.991297e-09
0.5461.625396.965800e-09
0.5475971.6252796.986170e-09
0.5503661.6250897.021506e-09
0.553151.62497.057020e-09
0.5559471.6247137.092715e-09
0.5587591.6245287.128590e-09
0.5615851.6243457.164646e-09
0.5644251.6241637.200885e-09
0.567281.6239847.237307e-09
0.5701491.6238067.273913e-09
0.5730331.623637.310704e-09
0.5759311.6234557.347681e-09
0.5788441.6232827.384846e-09
0.581.6232147.399600e-09
0.5817711.6231117.597857e-09
0.5847141.6229427.927212e-09
0.5876711.6227748.258233e-09
0.5906431.6226088.590928e-09
0.593631.6224438.925306e-09
0.5966331.622289.261375e-09
0.599651.6221199.599144e-09
0.6026831.6219599.938620e-09
0.6057311.62181.027981e-08
0.6087951.6216431.062273e-08
0.6118741.6214881.096739e-08
0.6149681.6213341.131378e-08
0.6180791.6211811.166193e-08
0.621.6210881.187700e-08
0.6212051.621031.196377e-08
0.6243461.620881.219005e-08
0.6275041.6207321.241749e-08
0.6306781.6205841.264607e-08
0.6338681.6204391.287581e-08
0.6370731.6202941.310672e-08
0.6402961.6201511.333879e-08
0.6435341.6200091.357203e-08
0.6467891.6198691.380645e-08
0.650061.6197291.404206e-08
0.6533481.6195911.427886e-08
0.6566521.6194541.451686e-08
0.6599731.6193181.475606e-08
0.661.6193171.475800e-08
0.6633111.6191841.446092e-08
0.6666661.619051.415991e-08
0.6700381.6189181.385738e-08
0.6734261.6187871.355332e-08
0.6768321.6186571.324773e-08
0.6802551.6185281.294058e-08
0.6836961.61841.263189e-08
0.6871541.6182731.232163e-08
0.6906291.6181481.200980e-08
0.6941221.6180231.169640e-08
0.6976331.6178991.138141e-08
0.71.6178171.116900e-08
0.7011611.6177771.119846e-08
0.7047071.6176551.128846e-08
0.7082711.6175351.137891e-08
0.7118541.6174151.146982e-08
0.7154541.6172961.156118e-08
0.7190721.6171781.165301e-08
0.7227091.6170621.174531e-08
0.7263641.6169461.183807e-08
0.7300381.6168311.193130e-08
0.733731.6167161.202500e-08
0.7374411.6166031.211917e-08
0.7411711.6164911.221383e-08
0.7449191.6163791.230896e-08
0.7486871.6162681.240457e-08
0.7524741.6161581.250066e-08
0.7562791.6160491.259724e-08
0.7601041.6159411.269431e-08
0.7639491.6158331.279187e-08
0.7678121.6157271.288993e-08
0.7716961.6156211.298848e-08
0.7755991.6155151.308752e-08
0.7795211.6154111.318707e-08
0.7834641.6153071.328713e-08
0.7874261.6152041.338768e-08
0.7914091.6151021.348875e-08
0.7954111.6151.359033e-08
0.7994341.6148991.369242e-08
0.8034781.6147991.379503e-08
0.8075411.6146991.389816e-08
0.8116251.61461.400181e-08
0.815731.6145011.410598e-08
0.8198561.6144041.421068e-08
0.8240031.6143061.431591e-08
0.828171.614211.442167e-08
0.8323591.6141141.452797e-08
0.8365681.6140181.463480e-08
0.8407991.6139231.474218e-08
0.8450521.6138291.485009e-08
0.8493261.6137351.495856e-08
0.8536211.6136421.506757e-08
0.8579391.6135491.517713e-08
0.8622781.6134571.528725e-08
0.8666391.6133651.539792e-08
0.8710221.6132741.550916e-08
0.8754271.6131841.562095e-08
0.8798551.6130931.573332e-08
0.8843051.6130031.584625e-08
0.8887771.6129141.595975e-08
0.8932721.6128251.607382e-08
0.897791.6127371.618848e-08
0.9023311.6126491.630371e-08
0.9068951.6125611.641952e-08
0.9114811.6124741.653593e-08
0.9160911.6123871.665291e-08
0.9207241.6123011.677050e-08
0.9253811.6122151.688867e-08
0.9300611.6121291.700745e-08
0.9347651.6120431.712682e-08
0.9394931.6119581.724680e-08
0.9442451.6118741.736738e-08
0.949021.6117891.748858e-08
0.953821.6117051.761039e-08
0.9586441.6116221.773281e-08
0.9634921.6115381.785585e-08
0.9683651.6114551.797952e-08
0.9732631.6113721.810381e-08
0.9781851.611291.822873e-08
0.9831331.6112071.835428e-08
0.9881051.6111251.848047e-08
0.9931031.6110441.860729e-08
0.9981251.6109621.873476e-08
1.003171.6108811.886287e-08
1.008251.61081.899163e-08
1.013351.6107191.912104e-08
1.018471.6106381.925110e-08
1.023621.6105571.938182e-08
1.02881.6104771.951321e-08
1.0341.6103971.964525e-08
1.039231.6103171.977797e-08
1.044491.6102371.991136e-08
1.049771.6101572.004542e-08
1.055081.6100782.018016e-08
1.061.6100052.030500e-08
1.060421.6099982.037424e-08
1.065781.6099192.126528e-08
1.071171.609842.216081e-08
1.076591.6097612.306088e-08
1.082031.6096822.396550e-08
1.087511.6096032.487469e-08
1.093011.6095242.578848e-08
1.098531.6094452.670690e-08
1.104091.6093672.762996e-08
1.109671.6092882.855768e-08
1.115291.609212.949010e-08
1.120931.6091313.042724e-08
1.12661.6090533.136911e-08
1.132291.6089743.231575e-08
1.138021.6088963.326718e-08
1.143781.6088173.422342e-08
1.149561.6087393.518449e-08
1.155371.608663.615043e-08
1.161221.6085823.712125e-08
1.167091.6085033.809698e-08
1.172991.6084243.907764e-08
1.178931.6083464.006327e-08
1.184891.6082674.105388e-08
1.190881.6081884.204950e-08
1.19691.6081094.305016e-08
1.202961.608034.405587e-08
1.209041.6079514.506668e-08
1.215161.6078724.608259e-08
1.22131.6077934.710365e-08
1.227481.6077144.812986e-08
1.233691.6076344.916127e-08
1.239931.6075555.019790e-08
1.24621.6074755.123976e-08
1.25251.6073955.228690e-08
1.258841.6073155.333933e-08
1.26521.6072355.439709e-08
1.27161.6071545.546020e-08
1.278031.6070745.652868e-08
1.28451.6069935.760256e-08
1.290991.6069125.868188e-08
1.297521.606835.976666e-08
1.304091.6067496.085692e-08
1.310681.6066676.195270e-08
1.317311.6065856.305402e-08
1.323971.6065036.416090e-08
1.330671.6064216.527339e-08
1.33741.6063386.639150e-08
1.344161.6062556.751527e-08
1.350961.6061726.864473e-08
1.357791.6060886.977989e-08
1.364661.6060047.092080e-08
1.371561.605927.206747e-08
1.37851.6058357.321995e-08
1.385471.6057517.437825e-08
1.392481.6056657.554241e-08
1.399521.605587.671246e-08
1.40661.6054947.788843e-08
1.413711.6054087.907035e-08
1.420861.6053218.025824e-08
1.428051.6052348.145214e-08
1.435271.6051468.265208e-08
1.442531.6050588.385809e-08
1.449831.604978.507020e-08
1.457161.6048818.628844e-08
1.464531.6047928.751284e-08
1.471941.6047028.874343e-08
1.479381.6046128.998025e-08
1.486861.6045229.122332e-08
1.494381.6044319.247268e-08
1.501941.6043399.372835e-08
1.509541.6042479.499038e-08
1.517171.6041549.625879e-08
1.524851.6040619.753362e-08
1.531.6039999.839000e-08
1.532561.6039681.008572e-07
1.540311.6038731.083347e-07
1.54811.6037791.158500e-07
1.555931.6036831.234034e-07
1.56381.6035881.309949e-07
1.571711.6034911.386249e-07
1.579661.6033941.462934e-07
1.587651.6032961.540007e-07
1.595681.6031981.617470e-07
1.603751.6030991.695325e-07
1.611861.6029991.773574e-07
1.620011.6028991.852218e-07
1.62821.6027981.931260e-07
1.636441.6026962.010702e-07
1.644711.6025942.090545e-07
1.653031.6024912.170793e-07
1.661391.6023872.251446e-07
1.669791.6022832.332507e-07
1.678241.6021782.413978e-07
1.686731.6020722.495861e-07
1.695261.6019652.578159e-07
1.703831.6018572.660872e-07
1.712451.6017492.744004e-07
1.721111.601642.827556e-07
1.729821.601532.911531e-07
1.738561.6014192.995931e-07
1.747361.6013083.080757e-07
1.756191.6011953.166013e-07
1.765081.6010823.251700e-07
1.7741.6009683.337820e-07
1.782981.6008533.424375e-07
1.791991.6007363.511369e-07
1.801061.6006193.598802e-07
1.810171.6005023.686678e-07
1.819321.6003833.774998e-07
1.828521.6002633.863764e-07
1.837771.6001423.952980e-07
1.847071.600024.042647e-07
1.856411.5998974.132767e-07
1.86581.5997734.223343e-07
1.875231.5996484.314378e-07
1.884721.5995234.405872e-07
1.894251.5993954.497830e-07
1.903831.5992674.590252e-07
1.913461.5991384.683142e-07
1.923141.5990084.776502e-07
1.932861.5988764.870334e-07
1.942641.5987434.964640e-07
1.952461.598615.059424e-07
1.962341.5984745.154687e-07
1.971.5983695.228600e-07
1.972261.5983385.384202e-07
1.982241.5982016.070069e-07
1.992261.5980626.759405e-07
2.002341.5979227.452227e-07
2.012471.5977818.148553e-07
2.022641.5976388.848401e-07
2.032871.5974949.551789e-07
2.043161.5973491.025873e-06
2.053491.5972021.096925e-06
2.063881.5970551.168337e-06
2.074311.5969051.240109e-06
2.08481.5967541.312245e-06
2.095351.5966021.384745e-06
2.105951.5964491.457613e-06
2.11661.5962941.530848e-06
2.12731.5961371.604454e-06
2.138061.5959791.678432e-06
2.148881.5958191.752785e-06
2.159741.5956581.827513e-06
2.170671.5954951.902620e-06
2.181641.5953311.978106e-06
2.192681.5951652.053974e-06
2.203771.5949972.130226e-06
2.214911.5948282.206864e-06
2.226121.5946572.283889e-06
2.237381.5944852.361303e-06
2.248691.594312.439109e-06
2.260061.5941342.517309e-06
2.271491.5939562.595904e-06
2.282981.5937762.674897e-06
2.294531.5935952.754289e-06
2.306131.5934112.834083e-06
2.31781.5932262.914280e-06
2.3251.5931112.963800e-06
2.329521.5930393.046865e-06
2.34131.592853.263354e-06
2.353141.5926593.480939e-06
2.365051.5924663.699624e-06
2.377011.5922713.919415e-06
2.389031.5920744.140317e-06
2.401111.5918744.362337e-06
2.413261.5916734.585480e-06
2.425461.591474.809751e-06
2.437731.5912645.035156e-06
2.450061.5910565.261702e-06
2.462451.5908465.489393e-06
2.47491.5906345.718236e-06
2.487421.590425.948236e-06
2.51.5902036.179400e-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
—