Optical constants

Refractive index of P-SF67 (SCHOTT)

P-SF67: n,k 0.39–2.5 µm

Data
formula 2 + tabulated k
Range
0.39–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength. Note: k data cover 400-2500 nm only; k = 0 elsewhere in the n range 390-2500 nm.

At one wavelength

Range 0.39–2.5 µm
Refractive index n
1.90679
Extinction coefficient k
1.29340e-07
Permittivity ε1
3.63586
Permittivity ε2
4.93250e-07
Absorption coefficient α
0.0276606 cm⁻¹
Penetration depth δ = λ/(2πk)
7.23050e+08 nm
Abbe number Vd
21.4
Chromatic dispersion dn/dλ
-0.210376 µm⁻¹
Group index ng
2.03041
Group velocity dispersion
447.849 fs²/mm
Dispersion parameter D
-2443.25 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-SF67 (SCHOTT): P-SF67
schott_p_sf67 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "P-SF67", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_p_sf67.range_nm)  # (390, 2500) nm
eps = schott_p_sf67.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=1.97464225λ2λ2−0.0145772324+0.467095921λ2λ2−0.0669790359+2.43154209λ2λ2−157.444895

Valid from 0.39 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.97464225
C30.0145772324
C40.467095921
C50.0669790359
C62.43154209
C7157.444895

Comments and conditions

inquiry glass suitable for precision molding

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 4.82e-07 1.15e-08 -9.95e-12 1.15e-06 1.65e-09 0.315
nd
1.9068
Vd
21.4
glass code
907214.424
glass status
special
density
value: 4236
thermal expansion
value: 6.23e-06, temperature range: 243 343; value: 7.39e-06, temperature range: 293 573
dPgF
0.0256
resistance
acid: 1.0; stain: 0.0; alkali: 1.3; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 2.95e-06 K⁻¹ at 633 nm, dn/dT = 7.87e-07 K⁻¹ at 1310 nm, dn/dT = 6.44e-07 K⁻¹ at 1550 nm
Notes on the source data (kept exactly as published):
  • k data cover 400-2500 nm only; k = 0 elsewhere in the n range 390-2500 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 415 wavelengths, the same grid as the API and the library
P-SF67 (SCHOTT), P-SF67: n and k versus wavelength
λ (µm)nk
0.392.0040560
0.391822.0020070
0.3936491.9999970
0.3954861.9980250
0.3973321.996090
0.3991861.9941910
0.41.9933724.098400e-06
0.401051.9923283.921587e-06
0.4029211.9904983.606264e-06
0.4048021.9887013.289469e-06
0.4051.9885143.256100e-06
0.4066911.9869373.097936e-06
0.4085891.9852042.920423e-06
0.4104961.9835022.742082e-06
0.4124121.9818292.562908e-06
0.4143371.9801862.382898e-06
0.4162711.978572.202048e-06
0.4182141.9769832.020354e-06
0.421.9755531.853300e-06
0.4201661.9754221.846578e-06
0.4221271.9738871.766985e-06
0.4240971.9723781.687021e-06
0.4260761.9708941.606683e-06
0.4280651.9694341.525971e-06
0.4300631.9679981.444882e-06
0.432071.9665851.363414e-06
0.4340861.9651951.281567e-06
0.4361.9639021.203900e-06
0.4361121.9638271.201879e-06
0.4381481.962481.165298e-06
0.4401931.9611551.128546e-06
0.4422471.959851.091623e-06
0.4443111.9585661.054527e-06
0.4463851.9573011.017258e-06
0.4484681.9560569.798153e-07
0.4505621.9548299.421977e-07
0.4526641.9536219.044046e-07
0.4547771.9524328.664350e-07
0.45691.9512598.282882e-07
0.4590321.9501057.899634e-07
0.461.9495887.725700e-07
0.4611751.9489677.620983e-07
0.4633271.9478467.429095e-07
0.4654891.9467417.236312e-07
0.4676621.9456527.042628e-07
0.4698451.9445796.848041e-07
0.4720381.9435216.652546e-07
0.4742411.9424786.456138e-07
0.4764541.941456.258814e-07
0.4786781.9404366.060568e-07
0.4809121.9394375.861397e-07
0.4831571.9384515.661297e-07
0.4854121.9374795.460263e-07
0.4876771.9365215.258290e-07
0.4899531.9355755.055375e-07
0.492241.9346424.851513e-07
0.4945371.9337224.646699e-07
0.4968451.9328154.440930e-07
0.4991641.9319194.234200e-07
0.51.93164.159700e-07
0.5014941.9310364.090376e-07
0.5038351.9301643.981772e-07
0.5061861.9293033.872662e-07
0.5085491.9284543.763042e-07
0.5109221.9276163.652910e-07
0.5133071.9267893.542265e-07
0.5157031.9259733.431103e-07
0.5181091.9251673.319422e-07
0.5205281.9243723.207220e-07
0.5229571.9235873.094495e-07
0.5253981.9228122.981243e-07
0.527851.9220462.867463e-07
0.5303141.921292.753152e-07
0.5327891.9205442.638307e-07
0.5352751.9198072.522926e-07
0.5377741.9190792.407007e-07
0.5402831.918362.290546e-07
0.5428051.9176512.173542e-07
0.5453391.9169492.055992e-07
0.5461.9167682.025300e-07
0.5478841.9162571.987320e-07
0.5504411.9155731.935764e-07
0.553011.9148971.883968e-07
0.5555911.9142291.831930e-07
0.5581841.913571.779649e-07
0.5607891.9129181.727123e-07
0.5634071.9122741.674353e-07
0.5660361.9116381.621337e-07
0.5686781.9110091.568073e-07
0.5713321.9103881.514560e-07
0.5739991.9097741.460798e-07
0.5766781.9091671.406785e-07
0.5793691.9085671.352519e-07
0.581.9084281.339800e-07
0.5820731.9079741.327143e-07
0.584791.9073881.310558e-07
0.5875191.9068091.293895e-07
0.5902611.9062371.277155e-07
0.5930161.9056711.260336e-07
0.5957841.9051111.243439e-07
0.5985651.9045581.226463e-07
0.6013581.9040111.209408e-07
0.6041651.9034711.192273e-07
0.6069851.9029361.175058e-07
0.6098181.9024071.157763e-07
0.6126641.9018841.140387e-07
0.6155231.9013681.122930e-07
0.6183961.9008561.105392e-07
0.621.9005741.095600e-07
0.6212821.9003511.093606e-07
0.6241821.8998511.089097e-07
0.6270951.8993561.084567e-07
0.6300221.8988671.080016e-07
0.6329631.8983831.075443e-07
0.6359171.8979051.070850e-07
0.6388851.8974311.066234e-07
0.6418671.8969631.061598e-07
0.6448621.89651.056939e-07
0.6478721.8960411.052259e-07
0.6508961.8955881.047557e-07
0.6539341.8951391.042833e-07
0.6569861.8946951.038087e-07
0.661.8942631.033400e-07
0.6600521.8942561.033299e-07
0.6631331.8938211.027342e-07
0.6662281.8933911.021357e-07
0.6693371.8929651.015344e-07
0.6724611.8925441.009303e-07
0.67561.8921271.003234e-07
0.6787531.8917159.971367e-08
0.6819211.8913069.910108e-08
0.6851031.8909029.848562e-08
0.6883011.8905029.786730e-08
0.6915131.8901069.724609e-08
0.6947411.8897149.662198e-08
0.6979831.8893269.599495e-08
0.71.8890879.560500e-08
0.7012411.8889419.545121e-08
0.7045141.8885619.504564e-08
0.7078021.8881859.463819e-08
0.7111061.8878129.422883e-08
0.7144251.8874429.381756e-08
0.7177591.8870779.340438e-08
0.7211091.8867159.298926e-08
0.7244741.8863579.257221e-08
0.7278561.8860029.215321e-08
0.7312531.885659.173225e-08
0.7346661.8853029.130933e-08
0.7380951.8849579.088444e-08
0.741541.8846169.045756e-08
0.7451.8842779.002869e-08
0.7484781.8839428.959782e-08
0.7519711.883618.916494e-08
0.7554811.8832828.873004e-08
0.7590071.8829568.829311e-08
0.7625491.8826338.785414e-08
0.7661081.8823148.741312e-08
0.7696841.8819978.697004e-08
0.7732761.8816838.652489e-08
0.7768851.8813728.607767e-08
0.7805111.8810648.562836e-08
0.7841541.8807598.517695e-08
0.7878141.8804568.472343e-08
0.7914911.8801568.426780e-08
0.7951851.8798598.381004e-08
0.7988961.8795648.335015e-08
0.8026251.8792738.288811e-08
0.8063711.8789838.242391e-08
0.8101341.8786968.195754e-08
0.8139151.8784128.148900e-08
0.8177141.878138.101828e-08
0.821531.8778518.054535e-08
0.8253651.8775748.007022e-08
0.8292171.8772997.959287e-08
0.8330871.8770277.911329e-08
0.8369751.8767577.863148e-08
0.8408821.8764897.814741e-08
0.8448061.8762247.766109e-08
0.8487491.875967.717250e-08
0.8527111.8756997.668162e-08
0.856691.875447.618846e-08
0.8606891.8751837.569299e-08
0.8647061.8749287.519521e-08
0.8687421.8746767.469511e-08
0.8727961.8744257.419267e-08
0.876871.8741767.368789e-08
0.8809621.8739297.318075e-08
0.8850741.8736857.267125e-08
0.8892051.8734427.215937e-08
0.8933551.8732017.164510e-08
0.8975241.8729627.112842e-08
0.9017131.8727247.060934e-08
0.9059221.8724897.008784e-08
0.910151.8722556.956390e-08
0.9143981.8720236.903751e-08
0.9186661.8717936.850867e-08
0.9229531.8715646.797736e-08
0.9272611.8713376.744357e-08
0.9315891.8711126.690729e-08
0.9359371.8708886.636850e-08
0.9403051.8706666.582721e-08
0.9446941.8704466.528338e-08
0.9491031.8702276.473702e-08
0.9535321.8700096.418810e-08
0.9579831.8697936.363663e-08
0.9624541.8695796.308258e-08
0.9669461.8693666.252594e-08
0.9714591.8691556.196671e-08
0.9759931.8689446.140487e-08
0.9805481.8687366.084040e-08
0.9851251.8685286.027330e-08
0.9897221.8683225.970356e-08
0.9943421.8681185.913115e-08
0.9989831.8679145.855607e-08
1.003651.8677125.797831e-08
1.008331.8675115.739786e-08
1.013041.8673125.681469e-08
1.017761.8671135.622880e-08
1.022511.8669165.564018e-08
1.027291.866725.504881e-08
1.032081.8665255.445468e-08
1.03691.8663315.385777e-08
1.041741.8661395.325808e-08
1.04661.8659475.265559e-08
1.051481.8657565.205029e-08
1.056391.8655675.144217e-08
1.061.8654295.099500e-08
1.061321.8653795.105859e-08
1.066281.8651915.129689e-08
1.071251.8650055.153631e-08
1.076251.8648195.177684e-08
1.081271.8646355.201850e-08
1.086321.8644515.226128e-08
1.091391.8642695.250520e-08
1.096491.8640875.275025e-08
1.10161.8639065.299645e-08
1.106741.8637265.324380e-08
1.111911.8635475.349230e-08
1.11711.8633695.374196e-08
1.122311.8631915.399279e-08
1.127551.8630155.424479e-08
1.132811.8628395.449796e-08
1.13811.8626635.475232e-08
1.143411.8624895.500786e-08
1.148751.8623155.526459e-08
1.154111.8621425.552253e-08
1.15951.861975.578167e-08
1.164911.8617985.604201e-08
1.170351.8616275.630357e-08
1.175811.8614575.656636e-08
1.18131.8612875.683037e-08
1.186811.8611185.709561e-08
1.192351.8609495.736209e-08
1.197911.8607815.762981e-08
1.20351.8606145.789878e-08
1.209121.8604475.816901e-08
1.214761.860285.844050e-08
1.220431.8601155.871326e-08
1.226131.8599495.898729e-08
1.231851.8597845.926259e-08
1.23761.859625.953919e-08
1.243381.8594565.981707e-08
1.249181.8592926.009625e-08
1.255011.8591296.037674e-08
1.260871.8589666.065853e-08
1.266751.8588036.094164e-08
1.272671.8586416.122607e-08
1.278611.8584796.151183e-08
1.284571.8583186.179892e-08
1.290571.8581576.208735e-08
1.296591.8579966.237712e-08
1.302641.8578356.266825e-08
1.308721.8576756.296074e-08
1.314831.8575156.325460e-08
1.320971.8573556.354982e-08
1.327131.8571956.384642e-08
1.333331.8570366.414441e-08
1.339551.8568776.444379e-08
1.34581.8567176.474456e-08
1.352081.8565596.504674e-08
1.358391.85646.535033e-08
1.364731.8562416.565534e-08
1.37111.8560836.596177e-08
1.37751.8559246.626963e-08
1.383931.8557666.657893e-08
1.390391.8556076.688967e-08
1.396881.8554496.720186e-08
1.40341.8552916.751550e-08
1.409951.8551336.783062e-08
1.416531.8549746.814720e-08
1.423141.8548166.846526e-08
1.429781.8546586.878480e-08
1.436461.8544996.910584e-08
1.443161.8543416.942837e-08
1.44991.8541836.975241e-08
1.456671.8540247.007796e-08
1.463461.8538657.040503e-08
1.470291.8537077.073363e-08
1.477161.8535487.106376e-08
1.484051.8533897.139544e-08
1.490981.853237.172866e-08
1.497941.853077.206343e-08
1.504931.8529117.239977e-08
1.511951.8527517.273768e-08
1.519011.8525917.307716e-08
1.52611.852437.341823e-08
1.531.8523427.360600e-08
1.533221.852277.494050e-08
1.540381.8521097.790653e-08
1.547561.8519488.088640e-08
1.554791.8517878.388018e-08
1.562041.8516258.688794e-08
1.569331.8514638.990973e-08
1.576661.85139.294562e-08
1.584021.8511389.599568e-08
1.591411.8509749.905998e-08
1.598841.8508111.021386e-07
1.60631.8506471.052316e-07
1.61381.8504831.083390e-07
1.621331.8503181.114609e-07
1.62891.8501521.145973e-07
1.63651.8499871.177485e-07
1.644141.849821.209143e-07
1.651811.8496541.240949e-07
1.659521.8494861.272903e-07
1.667271.8493181.305007e-07
1.675051.849151.337260e-07
1.682861.8489811.369664e-07
1.690721.8488121.402219e-07
1.698611.8486411.434927e-07
1.706541.8484711.467786e-07
1.71451.8482991.500800e-07
1.72251.8481271.533967e-07
1.730541.8479541.567289e-07
1.738621.8477811.600766e-07
1.746741.8476071.634400e-07
1.754891.8474321.668191e-07
1.763081.8472561.702139e-07
1.771311.847081.736246e-07
1.779571.8469031.770513e-07
1.787881.8467251.804939e-07
1.796221.8465461.839525e-07
1.804611.8463661.874273e-07
1.813031.8461861.909184e-07
1.821491.8460051.944257e-07
1.829991.8458221.979494e-07
1.838531.8456392.014895e-07
1.847121.8454552.050462e-07
1.855741.8452712.086195e-07
1.86441.8450852.122094e-07
1.87311.8448982.158161e-07
1.881841.844712.194396e-07
1.890621.8445212.230801e-07
1.899451.8443312.267375e-07
1.908311.844142.304120e-07
1.917221.8439482.341037e-07
1.926171.8437552.378126e-07
1.935161.8435612.415387e-07
1.944191.8433662.452823e-07
1.953261.8431692.490434e-07
1.962381.8429722.528220e-07
1.971.8428062.559800e-07
1.971541.8427732.593400e-07
1.980741.8425732.794183e-07
1.989991.8423722.995903e-07
1.999271.8421693.198564e-07
2.00861.8419663.402172e-07
2.017981.8417613.606729e-07
2.02741.8415543.812242e-07
2.036861.8413474.018713e-07
2.046371.8411384.226148e-07
2.055921.8409284.434552e-07
2.065511.8407164.643928e-07
2.075151.8405034.854281e-07
2.084841.8402885.065616e-07
2.094571.8400725.277937e-07
2.104351.8398555.491249e-07
2.114171.8396365.705557e-07
2.124031.8394155.920865e-07
2.133951.8391936.137178e-07
2.143911.8389696.354501e-07
2.153911.8387446.572838e-07
2.163971.8385176.792194e-07
2.174071.8382897.012573e-07
2.184211.8380597.233982e-07
2.194411.8378277.456423e-07
2.204651.8375937.679903e-07
2.214941.8373587.904426e-07
2.225281.8371218.129997e-07
2.235661.8368828.356620e-07
2.24611.8366428.584301e-07
2.256581.8363998.813045e-07
2.267111.8361559.042857e-07
2.277691.8359099.273741e-07
2.288321.8356619.505703e-07
2.2991.8354119.738747e-07
2.309731.8351599.972879e-07
2.320511.8349051.020810e-06
2.3251.8347991.030600e-06
2.331341.8346491.043538e-06
2.342221.8343911.065729e-06
2.353161.834131.088023e-06
2.364141.8338681.110422e-06
2.375171.8336041.132925e-06
2.386261.8333371.155533e-06
2.39741.8330691.178247e-06
2.408591.8327981.201067e-06
2.419831.8325241.223993e-06
2.431121.8322491.247026e-06
2.442471.8319711.270167e-06
2.453871.8316911.293415e-06
2.465321.8314091.316772e-06
2.476831.8311241.340239e-06
2.488391.8308361.363814e-06
2.51.8305471.387500e-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
—