Optical constants

Refractive index of N-PSK53A (SCHOTT)

N-PSK53A: 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.

At one wavelength

Range 0.32–2.5 µm
Refractive index n
1.618
Extinction coefficient k
1.20118e-08
Permittivity ε1
2.61792
Permittivity ε2
3.88701e-08
Absorption coefficient α
0.00256883 cm⁻¹
Penetration depth δ = λ/(2πk)
7.78564e+09 nm
Abbe number Vd
63.39
Chromatic dispersion dn/dλ
-0.0503816 µm⁻¹
Group index ng
1.6476
Group velocity dispersion
88.1219 fs²/mm
Dispersion parameter D
-480.752 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-PSK53A (SCHOTT): N-PSK53A
schott_n_psk53a = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "N-PSK53A", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_n_psk53a.range_nm)  # (320, 2500) nm
eps = schott_n_psk53a.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=1.38121836λ2λ2−0.00706416337+0.196745645λ2λ2−0.0233251345+0.886089205λ2λ2−97.4847345

Valid from 0.32 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.38121836
C30.00706416337
C40.196745645
C50.0233251345
C60.886089205
C797.4847345

Comments and conditions

step 0.5 available

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -9.28e-06 7.19e-09 1.45e-12 4.06e-07 3.17e-10 0.19
nd
1.618
Vd
63.39
glass code
618634.357
glass status
standard
density
value: 3568
thermal expansion
value: 9.56e-06, temperature range: 243 343; value: 1.084e-05, temperature range: 293 573
dPgF
0.0052
resistance
acid: 53.3; stain: 1.0; alkali: 2.3; climatic: 1.0; phosphate: 4.3

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -4.07e-06 K⁻¹ at 633 nm, dn/dT = -4.43e-06 K⁻¹ at 1310 nm, dn/dT = -4.44e-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 421 wavelengths, the same grid as the API and the library
N-PSK53A (SCHOTT), N-PSK53A: n and k versus wavelength
λ (µm)nk
0.321.6545133.571800e-06
0.3216531.6539373.352110e-06
0.3233141.6533693.131286e-06
0.3249851.6528092.909321e-06
0.3266631.6522562.686209e-06
0.3283511.651712.461945e-06
0.3300471.651172.236522e-06
0.3317521.6506382.009935e-06
0.3334651.6501131.782178e-06
0.3341.6499511.711100e-06
0.3351881.6495951.636586e-06
0.3369191.6490831.527963e-06
0.3386591.6485771.418779e-06
0.3404091.6480781.309031e-06
0.3421671.6475851.198715e-06
0.3439351.6470991.087830e-06
0.3457111.6466189.763727e-07
0.3474971.6461448.643393e-07
0.3492921.6456757.517271e-07
0.351.6454937.073100e-07
0.3510961.6452136.767137e-07
0.352911.6447566.260978e-07
0.3547331.6443045.752204e-07
0.3565651.6438595.240803e-07
0.3584071.6434184.726759e-07
0.3602581.6429844.210061e-07
0.3621191.6425543.690693e-07
0.363991.642133.168643e-07
0.3651.6419042.886700e-07
0.365871.6417112.766260e-07
0.367761.6412972.504623e-07
0.369661.6408882.241634e-07
0.371.6408152.194500e-07
0.3715691.6404832.050136e-07
0.3734881.6400841.873538e-07
0.3754181.639691.696028e-07
0.3773571.63931.517600e-07
0.3793061.6389151.338252e-07
0.381.638781.274400e-07
0.3812651.6385351.210340e-07
0.3832351.6381591.110634e-07
0.3852141.6377871.010413e-07
0.3872041.637429.096742e-08
0.3892041.6370578.084152e-08
0.391.6369157.681300e-08
0.3912151.6366997.315298e-08
0.3932361.6363456.706406e-08
0.3952671.6359956.094369e-08
0.3973091.6356495.479170e-08
0.3993611.6353074.860794e-08
0.41.6352014.668200e-08
0.4014241.6349694.457065e-08
0.4034971.6346354.149557e-08
0.4051.6343963.926700e-08
0.4055821.6343043.884470e-08
0.4076771.6339783.732330e-08
0.4097821.6336553.579403e-08
0.4118991.6333363.425686e-08
0.4140271.6330213.271176e-08
0.4161651.6327093.115867e-08
0.4183151.6324012.959756e-08
0.421.6321632.837400e-08
0.4204761.6320972.827986e-08
0.4226481.6317962.785021e-08
0.4248311.6314982.741835e-08
0.4270261.6312042.698426e-08
0.4292311.6309132.654793e-08
0.4314491.6306252.610934e-08
0.4336771.630342.566849e-08
0.4359171.6300592.522536e-08
0.4361.6300492.520900e-08
0.4381691.6297812.479643e-08
0.4404321.6295062.436592e-08
0.4427071.6292342.393319e-08
0.4449941.6289652.349822e-08
0.4472931.6286992.306100e-08
0.4496031.6284362.262153e-08
0.4519261.6281762.217979e-08
0.454261.6279182.173576e-08
0.4566071.6276642.128944e-08
0.4589651.6274122.084082e-08
0.461.6273032.064400e-08
0.4613361.6271632.038147e-08
0.4637191.6269171.991320e-08
0.4661141.6266731.944252e-08
0.4685221.6264331.896941e-08
0.4709421.6261941.849385e-08
0.4733751.6259591.801583e-08
0.475821.6257251.753535e-08
0.4782781.6254951.705238e-08
0.4807481.6252671.656692e-08
0.4832321.6250411.607895e-08
0.4857281.6248171.558846e-08
0.4882371.6245961.509544e-08
0.4907591.6243781.459987e-08
0.4932941.6241621.410174e-08
0.4958421.6239481.360104e-08
0.4984031.6237361.309775e-08
0.51.6236051.278400e-08
0.5009781.6235261.269744e-08
0.5035661.6233191.246834e-08
0.5061671.6231141.223807e-08
0.5087811.6229111.200660e-08
0.5114091.622711.177394e-08
0.5140511.6225111.154008e-08
0.5167061.6223141.130501e-08
0.5193761.622121.106872e-08
0.5220581.6219271.083121e-08
0.5247551.6217361.059248e-08
0.5274661.6215471.035251e-08
0.530191.621361.011131e-08
0.5329291.6211759.868858e-09
0.5356821.6209929.625154e-09
0.5384491.6208119.380191e-09
0.541231.6206329.133963e-09
0.5440261.6204548.886463e-09
0.5461.620338.711700e-09
0.5468361.6202788.770700e-09
0.5496611.6201048.970030e-09
0.55251.6199329.170391e-09
0.5553541.6197619.371786e-09
0.5582231.6195929.574221e-09
0.5611061.6194259.777703e-09
0.5640041.6192599.982235e-09
0.5669181.6190951.018782e-08
0.5698461.6189331.039447e-08
0.572791.6187721.060219e-08
0.5757491.6186131.081098e-08
0.5787231.6184551.102085e-08
0.581.6183881.111100e-08
0.5817121.6182991.131391e-08
0.5847171.6181441.167006e-08
0.5877371.6179911.202804e-08
0.5907731.617841.238788e-08
0.5938251.6176891.274957e-08
0.5968921.617541.311314e-08
0.5999751.6173931.347858e-08
0.6030741.6172471.384591e-08
0.606191.6171021.421513e-08
0.6093211.6169591.458626e-08
0.6124681.6168171.495931e-08
0.6156321.6166761.533429e-08
0.6188121.6165371.571121e-08
0.621.6164851.585200e-08
0.6220091.6163981.579707e-08
0.6252221.6162621.570919e-08
0.6284511.6161261.562086e-08
0.6316971.6159911.553208e-08
0.634961.6158581.544283e-08
0.638241.6157261.535313e-08
0.6415371.6155951.526296e-08
0.6448511.6154661.517233e-08
0.6481821.6153371.508122e-08
0.651531.615211.498965e-08
0.6548961.6150831.489761e-08
0.6582781.6149581.480508e-08
0.661.6148951.475800e-08
0.6616791.6148341.470138e-08
0.6650971.6147111.458611e-08
0.6685321.6145891.447025e-08
0.6719861.6144681.435379e-08
0.6754571.6143481.423672e-08
0.6789461.6142291.411906e-08
0.6824531.6141111.400078e-08
0.6859781.6139941.388189e-08
0.6895211.6138781.376239e-08
0.6930831.6137631.364227e-08
0.6966631.6136491.352153e-08
0.71.6135441.340900e-08
0.7002621.6135361.341402e-08
0.7038791.6134241.348331e-08
0.7075151.6133121.355295e-08
0.711171.6132021.362296e-08
0.7148431.6130921.369333e-08
0.7185361.6129841.376406e-08
0.7222471.6128761.383516e-08
0.7259781.6127691.390662e-08
0.7297281.6126621.397846e-08
0.7334971.6125571.405066e-08
0.7372861.6124521.412324e-08
0.7410951.6123481.419619e-08
0.7449231.6122451.426952e-08
0.7487711.6121431.434323e-08
0.7526391.6120411.441732e-08
0.7565261.611941.449179e-08
0.7604341.611841.456665e-08
0.7643621.6117411.464189e-08
0.768311.6116421.471752e-08
0.7722791.6115441.479355e-08
0.7762681.6114461.486996e-08
0.7802781.6113491.494677e-08
0.7843091.6112531.502398e-08
0.788361.6111581.510158e-08
0.7924321.6110631.517959e-08
0.7965261.6109691.525800e-08
0.800641.6108751.533681e-08
0.8047761.6107821.541604e-08
0.8089331.610691.549567e-08
0.8131111.6105981.557571e-08
0.8173111.6105071.565616e-08
0.8215331.6104161.573704e-08
0.8257771.6103261.581832e-08
0.8300421.6102361.590003e-08
0.834331.6101471.598216e-08
0.838641.6100581.606472e-08
0.8429721.609971.614770e-08
0.8473261.6098821.623111e-08
0.8517031.6097951.631495e-08
0.8561021.6097091.639923e-08
0.8605241.6096221.648394e-08
0.864971.6095361.656908e-08
0.8694371.6094511.665467e-08
0.8739291.6093661.674070e-08
0.8784431.6092821.682717e-08
0.882981.6091981.691409e-08
0.8875411.6091141.700146e-08
0.8921261.6090311.708928e-08
0.8967341.6089481.717755e-08
0.9013661.6088651.726628e-08
0.9060221.6087831.735547e-08
0.9107021.6087011.744512e-08
0.9154071.608621.753523e-08
0.9201351.6085391.762581e-08
0.9248881.6084581.771686e-08
0.9296661.6083771.780837e-08
0.9344681.6082971.790036e-08
0.9392951.6082171.799282e-08
0.9441471.6081381.808577e-08
0.9490241.6080581.817919e-08
0.9539261.6079791.827309e-08
0.9588531.60791.836748e-08
0.9638061.6078221.846236e-08
0.9687851.6077441.855772e-08
0.9737891.6076651.865358e-08
0.9788191.6075881.874994e-08
0.9838751.607511.884679e-08
0.9889571.6074331.894414e-08
0.9940661.6073551.904199e-08
0.9992011.6072781.914036e-08
1.004361.6072021.923922e-08
1.009551.6071251.933860e-08
1.014761.6070481.943850e-08
1.020011.6069721.953891e-08
1.025281.6068961.963983e-08
1.030571.606821.974128e-08
1.035891.6067441.984325e-08
1.041251.6066681.994575e-08
1.046621.6065932.004878e-08
1.052031.6065172.015234e-08
1.057461.6064412.025644e-08
1.061.6064062.030500e-08
1.062931.6063662.154340e-08
1.068421.6062912.386619e-08
1.073941.6062162.620097e-08
1.079481.606142.854782e-08
1.085061.6060653.090679e-08
1.090671.605993.327795e-08
1.09631.6059153.566136e-08
1.101961.605843.805707e-08
1.107651.6057654.046516e-08
1.113381.605694.288569e-08
1.119131.6056154.531873e-08
1.124911.605544.776433e-08
1.130721.6054655.022256e-08
1.136561.605395.269349e-08
1.142431.6053155.517719e-08
1.148331.605245.767371e-08
1.154261.6051656.018313e-08
1.160231.605096.270552e-08
1.166221.6050146.524093e-08
1.172241.6049396.778944e-08
1.17831.6048647.035111e-08
1.184381.6047887.292602e-08
1.19051.6047137.551422e-08
1.196651.6046377.811580e-08
1.202831.6045618.073081e-08
1.209051.6044858.335933e-08
1.215291.6044098.600143e-08
1.221571.6043338.865718e-08
1.227881.6042569.132665e-08
1.234221.604189.400990e-08
1.24061.6041039.670701e-08
1.2471.6040269.941806e-08
1.253451.6039491.021431e-07
1.259921.6038721.048822e-07
1.266431.6037941.076355e-07
1.272971.6037171.104030e-07
1.279551.6036391.131848e-07
1.286161.603561.159810e-07
1.29281.6034821.187916e-07
1.299481.6034031.216167e-07
1.306191.6033251.244564e-07
1.312941.6032451.273108e-07
1.319721.6031661.301799e-07
1.326541.6030861.330639e-07
1.333391.6030061.359627e-07
1.340281.6029261.388766e-07
1.34721.6028451.418054e-07
1.354161.6027641.447494e-07
1.361151.6026831.477086e-07
1.368181.6026011.506831e-07
1.375251.6025191.536730e-07
1.382351.6024371.566783e-07
1.38951.6023541.596991e-07
1.396671.6022711.627356e-07
1.403891.6021871.657877e-07
1.411141.6021041.688556e-07
1.418431.6020191.719393e-07
1.425761.6019341.750389e-07
1.433121.6018491.781546e-07
1.440521.6017641.812864e-07
1.447961.6016781.844343e-07
1.455441.6015911.875985e-07
1.462961.6015041.907791e-07
1.470521.6014171.939760e-07
1.478111.6013291.971895e-07
1.485751.601242.004196e-07
1.493421.6011512.036664e-07
1.501141.6010622.069299e-07
1.508891.6009722.102103e-07
1.516691.6008812.135077e-07
1.524521.600792.168221e-07
1.531.6007262.191400e-07
1.53241.6006982.255660e-07
1.540311.6006062.467970e-07
1.548271.6005132.681377e-07
1.556271.6004192.895886e-07
1.56431.6003253.111503e-07
1.572381.6002313.328234e-07
1.580511.6001353.546084e-07
1.588671.6000393.765060e-07
1.596881.5999433.985167e-07
1.605131.5998454.206410e-07
1.613421.5997474.428797e-07
1.621751.5996484.652332e-07
1.630131.5995494.877023e-07
1.638551.5994495.102873e-07
1.647011.5993485.329890e-07
1.655521.5992465.558080e-07
1.664071.5991445.787449e-07
1.672671.5990416.018003e-07
1.681311.5989376.249747e-07
1.689991.5988326.482688e-07
1.698721.5987276.716833e-07
1.70751.5986216.952187e-07
1.716321.5985137.188757e-07
1.725181.5984057.426549e-07
1.734091.5982967.665569e-07
1.743051.5981877.905824e-07
1.752061.5980768.147320e-07
1.761111.5979658.390064e-07
1.77021.5978528.634061e-07
1.779351.5977398.879318e-07
1.788541.5976249.125843e-07
1.797781.5975099.373641e-07
1.807061.5973939.622719e-07
1.81641.5972759.873083e-07
1.825781.5971571.012474e-06
1.835211.5970381.037770e-06
1.844691.5969181.063196e-06
1.854221.5967961.088754e-06
1.86381.5966741.114444e-06
1.873421.596551.140266e-06
1.88311.5964261.166222e-06
1.892831.59631.192312e-06
1.902611.5961731.218537e-06
1.912431.5960451.244897e-06
1.922311.5959161.271393e-06
1.932241.5957861.298027e-06
1.942221.5956541.324797e-06
1.952261.5955211.351707e-06
1.962341.5953871.378755e-06
1.971.5952851.399300e-06
1.972481.5952521.424301e-06
1.982671.5951151.527162e-06
1.992911.5949781.630555e-06
2.00321.5948381.734481e-06
2.013551.5946981.838944e-06
2.023951.5945561.943947e-06
2.03441.5944132.049492e-06
2.044911.5942682.155583e-06
2.055481.5941232.262221e-06
2.066091.5939752.369410e-06
2.076771.5938262.477153e-06
2.087491.5936762.585453e-06
2.098281.5935242.694312e-06
2.109111.5933712.803733e-06
2.120011.5932162.913720e-06
2.130961.593063.024274e-06
2.141971.5929023.135400e-06
2.153031.5927423.247099e-06
2.164151.5925813.359376e-06
2.175331.5924193.472233e-06
2.186571.5922543.585672e-06
2.197861.5920883.699698e-06
2.209221.591923.814312e-06
2.220631.5917513.929519e-06
2.23211.5915794.045321e-06
2.243631.5914064.161720e-06
2.255221.5912314.278722e-06
2.266871.5910554.396327e-06
2.278581.5908764.514540e-06
2.290351.5906964.633364e-06
2.302181.5905134.752801e-06
2.314071.5903294.872855e-06
2.3251.5901594.983200e-06
2.326021.5901435.011660e-06
2.338041.5899555.345850e-06
2.350121.5897645.681766e-06
2.362251.5895726.019417e-06
2.374461.5893786.358813e-06
2.386721.5891816.699961e-06
2.399051.5889827.042872e-06
2.411441.5887827.387554e-06
2.42391.5885797.734017e-06
2.436421.5883748.082269e-06
2.449011.5881668.432320e-06
2.461661.5879568.784179e-06
2.474371.5877449.137856e-06
2.487151.587539.493360e-06
2.51.5873139.850700e-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
—