Optical constants

Refractive index of P-SK60 (SCHOTT)

P-SK60: n,k 0.3–2.5 µm

Data
formula 2 + tabulated k
Range
0.3–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.3–2.5 µm
Refractive index n
1.61035
Extinction coefficient k
4.49672e-09
Permittivity ε1
2.59322
Permittivity ε2
1.44826e-08
Absorption coefficient α
0.000961666 cm⁻¹
Penetration depth δ = λ/(2πk)
2.07972e+10 nm
Abbe number Vd
57.9
Chromatic dispersion dn/dλ
-0.0544826 µm⁻¹
Group index ng
1.64236
Group velocity dispersion
94.6626 fs²/mm
Dispersion parameter D
-516.435 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

# P-SK60 (SCHOTT): P-SK60
schott_p_sk60 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "P-SK60", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_p_sk60.range_nm)  # (300, 2500) nm
eps = schott_p_sk60.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=1.40790442λ2λ2−0.00784382378+0.143381417λ2λ2−0.0287769365+1.16513947λ2λ2−105.373397

Valid from 0.3 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.40790442
C30.00784382378
C40.143381417
C50.0287769365
C61.16513947
C7105.373397

Comments and conditions

suitable for precision molding

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 2.41e-06 9.52e-09 -8.08e-12 4.72e-07 6.22e-10 0.193
nd
1.61035
Vd
57.9
glass code
610579.308
glass status
standard
density
value: 3075
thermal expansion
value: 7.06e-06, temperature range: 243 343; value: 8.85e-06, temperature range: 293 573
dPgF
-0.0037
resistance
acid: 53.4; stain: 5.0; alkali: 2.3; climatic: 3.0; phosphate: 3.3

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 1.83e-06 K⁻¹ at 633 nm, dn/dT = 1.30e-06 K⁻¹ at 1310 nm, dn/dT = 1.26e-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 423 wavelengths, the same grid as the API and the library
P-SK60 (SCHOTT), P-SK60: n and k versus wavelength
λ (µm)nk
0.31.6589465.059500e-06
0.3015981.658164.539820e-06
0.3032051.6573864.017370e-06
0.3048211.6566233.492137e-06
0.3064451.6558722.964106e-06
0.3080781.6551312.433261e-06
0.3097191.6544021.899588e-06
0.311.6542791.808300e-06
0.3113691.6536831.663046e-06
0.3130281.6529751.487077e-06
0.3146961.6522781.310171e-06
0.3163731.651591.132322e-06
0.3180591.6509129.535252e-07
0.3197531.6502447.737759e-07
0.321.6501487.476100e-07
0.3214571.6495856.972961e-07
0.323171.6489366.381499e-07
0.3248921.6482965.786886e-07
0.3266231.6476655.189105e-07
0.3283631.6470424.588138e-07
0.3301121.6464293.983970e-07
0.3318711.6458243.376582e-07
0.333641.6452272.765959e-07
0.3341.6451072.641500e-07
0.3354171.6446382.489804e-07
0.3372041.6440582.298518e-07
0.3390011.6434862.106214e-07
0.3408071.6429211.912884e-07
0.3426231.6423641.718524e-07
0.3444491.6418141.523129e-07
0.3462841.6412721.326693e-07
0.3481291.6407371.129210e-07
0.3499841.6402099.306749e-08
0.351.6402059.289400e-08
0.3518491.6396888.625073e-08
0.3537231.6391747.951351e-08
0.3556081.6386677.274039e-08
0.3575031.6381676.593118e-08
0.3594071.6376735.908569e-08
0.3613221.6371865.220373e-08
0.3632481.6367044.528510e-08
0.3651.6362743.898700e-08
0.3651831.636233.869578e-08
0.3671291.6357613.559819e-08
0.3690851.6352983.248409e-08
0.371.6350843.102700e-08
0.3710511.6348412.994557e-08
0.3730281.634392.791183e-08
0.3750161.6339452.586727e-08
0.3770141.6335062.381180e-08
0.3790231.6330722.174539e-08
0.381.6328632.074000e-08
0.3810421.6326432.014046e-08
0.3830721.632221.897247e-08
0.3851131.6318021.779826e-08
0.3871651.631391.661779e-08
0.3892281.6309831.543104e-08
0.391.6308321.498700e-08
0.3913021.630581.436724e-08
0.3933871.6301831.337484e-08
0.3954831.629791.237714e-08
0.397591.6294031.137413e-08
0.3997081.629021.036577e-08
0.41.6289681.022700e-08
0.4018381.6286429.796433e-09
0.4039791.6282689.294919e-09
0.4051.6280939.055800e-09
0.4061321.6278998.979590e-09
0.4082961.6275358.833858e-09
0.4104711.6271758.687350e-09
0.4126581.6268198.540061e-09
0.4148571.6264688.391987e-09
0.4170671.626128.243125e-09
0.4192891.6257778.093469e-09
0.421.6256698.045600e-09
0.4215231.6254388.074779e-09
0.4237691.6251048.117803e-09
0.4260271.6247738.161055e-09
0.4282971.6244468.204538e-09
0.4305791.6241228.248253e-09
0.4328731.6238038.292200e-09
0.4351791.6234878.336382e-09
0.4361.6233768.352100e-09
0.4374981.6231768.288891e-09
0.4398291.6228678.190541e-09
0.4421731.6225638.091667e-09
0.4445291.6222617.992266e-09
0.4468971.6219647.892335e-09
0.4492781.621677.791872e-09
0.4516721.6213797.690874e-09
0.4540781.6210917.589338e-09
0.4564981.6208077.487261e-09
0.458931.6205267.384640e-09
0.461.6204047.339500e-09
0.4613751.6202487.251557e-09
0.4638341.6199747.094370e-09
0.4663051.6197026.936346e-09
0.4687891.6194346.777480e-09
0.4712871.6191686.617768e-09
0.4737981.6189066.457204e-09
0.4763231.6186466.295785e-09
0.4788611.618396.133506e-09
0.4814121.6181365.970363e-09
0.4839771.6178855.806350e-09
0.4865561.6176375.641463e-09
0.4891481.6173925.475698e-09
0.4917541.6171495.309050e-09
0.4943741.6169095.141513e-09
0.4970081.6166724.973084e-09
0.4996571.6164374.803758e-09
0.51.6164074.781800e-09
0.5023191.6162054.716147e-09
0.5049951.6159754.640370e-09
0.5076861.6157484.564189e-09
0.5103911.6155234.487603e-09
0.513111.61534.410608e-09
0.5158441.615084.333203e-09
0.5185931.6148634.255386e-09
0.5213561.6146474.177154e-09
0.5241341.6144344.098505e-09
0.5269261.6142234.019437e-09
0.5297341.6140153.939948e-09
0.5325561.6138083.860035e-09
0.5353941.6136043.779697e-09
0.5382461.6134023.698931e-09
0.5411141.6132023.617734e-09
0.5439971.6130043.536104e-09
0.5461.6128683.479400e-09
0.5468961.6128083.485109e-09
0.549811.6126143.503681e-09
0.5527391.6124223.522352e-09
0.5556841.6122323.541122e-09
0.5586451.6120443.559992e-09
0.5616211.6118583.578963e-09
0.5646141.6116743.598035e-09
0.5676221.6114923.617209e-09
0.5706461.6113113.636484e-09
0.5736871.6111323.655863e-09
0.5767431.6109553.675344e-09
0.5798161.610783.694930e-09
0.581.610773.696100e-09
0.5829061.6106074.002202e-09
0.5860111.6104354.329379e-09
0.5891341.6102654.658300e-09
0.5922731.6100964.988974e-09
0.5954281.6099295.321409e-09
0.5986011.6097645.655615e-09
0.601791.60965.991603e-09
0.6049971.6094386.329380e-09
0.608221.6092786.668957e-09
0.6114611.6091197.010343e-09
0.6147191.6089617.353549e-09
0.6179941.6088057.698582e-09
0.621.6087117.909900e-09
0.6212871.608657.926316e-09
0.6245971.6084977.968547e-09
0.6279251.6083458.011003e-09
0.6312711.6081958.053685e-09
0.6346341.6080468.096594e-09
0.6380151.6078988.139732e-09
0.6414151.6077528.183100e-09
0.6448321.6076078.226699e-09
0.6482681.6074638.270530e-09
0.6517221.6073218.314595e-09
0.6551951.607188.358894e-09
0.6586851.607048.403430e-09
0.661.6069878.420200e-09
0.6621951.6069018.325507e-09
0.6657231.6067638.173299e-09
0.669271.6066278.020280e-09
0.6728361.6064927.866446e-09
0.6764211.6063587.711792e-09
0.6800251.6062257.556314e-09
0.6836481.6060937.400008e-09
0.6872911.6059627.242869e-09
0.6909531.6058327.084893e-09
0.6946341.6057046.926075e-09
0.6983351.6055766.766410e-09
0.71.6055196.694600e-09
0.7020561.605456.694944e-09
0.7057971.6053246.695571e-09
0.7095571.60526.696201e-09
0.7133381.6050766.696834e-09
0.7171391.6049536.697471e-09
0.720961.6048326.698111e-09
0.7248011.6047116.698754e-09
0.7286631.6045916.699401e-09
0.7325451.6044726.700051e-09
0.7364481.6043546.700705e-09
0.7403721.6042376.701362e-09
0.7443171.6041216.702023e-09
0.7482831.6040056.702687e-09
0.752271.6038916.703355e-09
0.7562781.6037776.704027e-09
0.7603071.6036646.704701e-09
0.7643581.6035516.705380e-09
0.7684311.603446.706062e-09
0.7725251.6033296.706748e-09
0.7766411.6032196.707437e-09
0.7807791.603116.708131e-09
0.7849391.6030016.708827e-09
0.7891211.6028936.709528e-09
0.7933261.6027866.710232e-09
0.7975531.602686.710940e-09
0.8018021.6025746.711652e-09
0.8060741.6024686.712367e-09
0.8103691.6023646.713087e-09
0.8146871.602266.713810e-09
0.8190281.6021566.714537e-09
0.8233911.6020546.715268e-09
0.8277791.6019516.716003e-09
0.8321891.601856.716742e-09
0.8366231.6017496.717484e-09
0.8410811.6016486.718231e-09
0.8455621.6015486.718982e-09
0.8500671.6014496.719736e-09
0.8545961.601356.720495e-09
0.859151.6012516.721258e-09
0.8637271.6011536.722024e-09
0.8683291.6010556.722795e-09
0.8729561.6009586.723570e-09
0.8776071.6008626.724349e-09
0.8822831.6007656.725132e-09
0.8869841.600676.725920e-09
0.891711.6005746.726711e-09
0.8964611.6004796.727507e-09
0.9012381.6003846.728307e-09
0.9060391.600296.729112e-09
0.9108671.6001966.729920e-09
0.915721.6001036.730733e-09
0.9205991.600016.731550e-09
0.9255041.5999176.732372e-09
0.9304351.5998246.733198e-09
0.9353931.5997326.734028e-09
0.9403771.599646.734863e-09
0.9453871.5995486.735702e-09
0.9504241.5994576.736546e-09
0.9554881.5993666.737394e-09
0.9605791.5992756.738247e-09
0.9656971.5991846.739104e-09
0.9708421.5990946.739966e-09
0.9760151.5990036.740833e-09
0.9812151.5989136.741704e-09
0.9864431.5988246.742579e-09
0.9916991.5987346.743460e-09
0.9969831.5986446.744345e-09
1.00231.5985556.745234e-09
1.007641.5984666.746129e-09
1.0131.5983776.747028e-09
1.01841.5982886.747932e-09
1.023831.5981996.748841e-09
1.029281.5981116.749755e-09
1.034771.5980226.750673e-09
1.040281.5979346.751597e-09
1.045821.5978456.752525e-09
1.05141.5977576.753459e-09
1.0571.5976696.754397e-09
1.061.5976216.754900e-09
1.062631.597587.184165e-09
1.068291.5974928.108711e-09
1.073981.5974049.038183e-09
1.07971.5973169.972607e-09
1.085461.5972281.091201e-08
1.091241.5971391.185642e-08
1.097061.5970511.280586e-08
1.10291.5969631.376036e-08
1.108781.5968751.471994e-08
1.114681.5967861.568464e-08
1.120621.5966981.665447e-08
1.126591.596611.762948e-08
1.13261.5965211.860968e-08
1.138631.5964321.959510e-08
1.14471.5963442.058577e-08
1.15081.5962552.158172e-08
1.156931.5961662.258298e-08
1.163091.5960772.358957e-08
1.169291.5959872.460153e-08
1.175521.5958982.561887e-08
1.181781.5958082.664164e-08
1.188081.5957192.766986e-08
1.194411.5956292.870355e-08
1.200771.5955382.974276e-08
1.207171.5954483.078749e-08
1.21361.5953573.183780e-08
1.220071.5952663.289370e-08
1.226571.5951753.395523e-08
1.233111.5950843.502242e-08
1.239681.5949923.609529e-08
1.246281.59493.717387e-08
1.252921.5948083.825821e-08
1.25961.5947163.934832e-08
1.266311.5946234.044424e-08
1.273061.594534.154599e-08
1.279841.5944364.265362e-08
1.286661.5943424.376715e-08
1.293511.5942484.488662e-08
1.30041.5941544.601204e-08
1.307331.5940594.714347e-08
1.31431.5939634.828092e-08
1.32131.5938674.942443e-08
1.328341.5937715.057404e-08
1.335421.5936755.172977e-08
1.342531.5935785.289166e-08
1.349691.593485.405974e-08
1.356881.5933825.523404e-08
1.364111.5932845.641460e-08
1.371381.5931855.760145e-08
1.378681.5930855.879462e-08
1.386031.5929855.999415e-08
1.393411.5928856.120008e-08
1.400841.5927846.241242e-08
1.40831.5926826.363123e-08
1.415811.592586.485653e-08
1.423351.5924776.608836e-08
1.430931.5923746.732675e-08
1.438561.592276.857174e-08
1.446221.5921656.982337e-08
1.453931.592067.108166e-08
1.461671.5919547.234666e-08
1.469461.5918487.361839e-08
1.477291.5917417.489691e-08
1.485161.5916337.618223e-08
1.493081.5915247.747440e-08
1.501031.5914157.877346e-08
1.509031.5913058.007944e-08
1.517071.5911948.139238e-08
1.525151.5910838.271231e-08
1.531.5910168.350400e-08
1.533281.5909718.780393e-08
1.541451.5908589.852030e-08
1.549661.5907441.092938e-07
1.557921.5906291.201246e-07
1.566221.5905141.310132e-07
1.574561.5903971.419598e-07
1.582951.590281.529647e-07
1.591391.5901621.640283e-07
1.599871.5900431.751508e-07
1.608391.5899231.863326e-07
1.616961.5898031.975739e-07
1.625571.5896812.088752e-07
1.634241.5895582.202366e-07
1.642941.5894352.316586e-07
1.65171.589312.431414e-07
1.66051.5891852.546855e-07
1.669341.5890582.662910e-07
1.678241.588932.779584e-07
1.687181.5888022.896879e-07
1.696171.5886723.014799e-07
1.705211.5885413.133348e-07
1.714291.5884093.252528e-07
1.723431.5882763.372343e-07
1.732611.5881423.492797e-07
1.741841.5880073.613892e-07
1.751121.587873.735633e-07
1.760451.5877333.858022e-07
1.769831.5875943.981063e-07
1.779261.5874544.104760e-07
1.788741.5873124.229116e-07
1.798271.587174.354135e-07
1.807851.5870264.479820e-07
1.817491.5868814.606174e-07
1.827171.5867344.733202e-07
1.83691.5865864.860906e-07
1.846691.5864374.989291e-07
1.856531.5862865.118360e-07
1.866421.5861345.248116e-07
1.876371.5859815.378564e-07
1.886371.5858265.509707e-07
1.896421.585675.641549e-07
1.906521.5855125.774093e-07
1.916681.5853535.907343e-07
1.926891.5851926.041303e-07
1.937161.5850296.175977e-07
1.947481.5848656.311369e-07
1.957851.58476.447482e-07
1.968291.5845326.584320e-07
1.971.5845056.606800e-07
1.978771.5843637.288593e-07
1.989321.5841938.107900e-07
1.999921.5840218.931572e-07
2.010571.5838479.759633e-07
2.021281.5836711.059211e-06
2.032051.5834931.142901e-06
2.042881.5833141.227038e-06
2.053771.5831331.311623e-06
2.064711.582951.396659e-06
2.075711.5827651.482148e-06
2.086771.5825791.568092e-06
2.097891.582391.654494e-06
2.109061.5821991.741357e-06
2.12031.5820071.828682e-06
2.13161.5818121.916473e-06
2.142961.5816152.004731e-06
2.154371.5814172.093460e-06
2.165851.5812162.182661e-06
2.177391.5810132.272338e-06
2.188991.5808082.362493e-06
2.200661.5806012.453128e-06
2.212381.5803912.544245e-06
2.224171.5801792.635849e-06
2.236021.5799652.727940e-06
2.247931.5797492.820522e-06
2.259911.579532.913597e-06
2.271951.5793093.007168e-06
2.284061.5790863.101238e-06
2.296231.578863.195809e-06
2.308461.5786313.290884e-06
2.320761.57843.386465e-06
2.3251.5783213.419400e-06
2.333131.5781673.599227e-06
2.345561.5779313.874288e-06
2.358061.5776924.150815e-06
2.370621.5774514.428815e-06
2.383251.5772074.708297e-06
2.395951.576964.989267e-06
2.408711.576715.271735e-06
2.421551.5764585.555707e-06
2.434451.5762035.841193e-06
2.447421.5759446.128200e-06
2.460461.5756836.416735e-06
2.473571.5754196.706809e-06
2.486751.5751526.998427e-06
2.51.5748827.291600e-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
—