Optical constants

Refractive index of SF6G05 (SCHOTT)

SF6G05: n,k 0.46–2.5 µm

Data
formula 2 + tabulated k
Range
0.46–2.5 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.46–2.5 µm
Refractive index n
1.80905
Extinction coefficient k
1.87691e-07
Permittivity ε1
3.27267
Permittivity ε2
6.79086e-07
Absorption coefficient α
0.0401395 cm⁻¹
Penetration depth δ = λ/(2πk)
4.98262e+08 nm
Abbe number Vd
25.271
Chromatic dispersion dn/dλ
-0.160238 µm⁻¹
Group index ng
1.90321
Group velocity dispersion
332.439 fs²/mm
Dispersion parameter D
-1813.63 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

# SF6G05 (SCHOTT): SF6G05
schott_sf6g05 = ls.fetch_refractiveindex("specs", "SCHOTT-optical", "SF6G05", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_sf6g05.range_nm)  # (460, 2500) nm
eps = schott_sf6g05.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=1.62113942λ2λ2−0.0113478992+0.506586092λ2λ2−0.0535840223+10.4032298λ2λ2−1118.83658

Valid from 0.46 to 2.5 µm.

Coefficients as stored
CiValue
C10.0
C21.62113942
C30.0113478992
C40.506586092
C50.0535840223
C610.4032298
C71118.83658

Comments and conditions

inquiry glass

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 6.9e-06 1.76e-08 -3.17e-11 1.89e-06 1.5e-09 0.256
nd
1.80906
Vd
25.28
glass code
809253.520
glass status
special
density
value: 5200
thermal expansion
value: 7.8e-06, temperature range: 243 343
dPgF
0.108
resistance
acid: 51.3; stain: 3.0; alkali: 2.3; climatic: 4.0; phosphate: 3.3

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 7.82e-06 K⁻¹ at 633 nm, dn/dT = 4.86e-06 K⁻¹ at 1310 nm, dn/dT = 4.63e-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 410 wavelengths, the same grid as the API and the library
SF6G05 (SCHOTT), SF6G05: n and k versus wavelength
λ (µm)nk
0.461.8410353.698200e-06
0.4619561.8402813.603653e-06
0.463921.8395373.508705e-06
0.4658921.8388013.413352e-06
0.4678731.8380753.317595e-06
0.4698621.8373573.221430e-06
0.471861.8366473.124856e-06
0.4738661.8359463.027872e-06
0.4758811.8352542.930475e-06
0.4779041.8345692.832664e-06
0.4799361.8338932.734437e-06
0.4819771.8332252.635793e-06
0.4840261.8325642.536729e-06
0.4860841.8319112.437245e-06
0.488151.8312662.337337e-06
0.4902261.8306282.237004e-06
0.492311.8299972.136245e-06
0.4944031.8293742.035057e-06
0.4965051.8287581.933439e-06
0.4986161.8281491.831390e-06
0.51.8277551.764500e-06
0.5007361.8275461.742291e-06
0.5028651.8269511.678075e-06
0.5050031.8263621.613585e-06
0.507151.825781.548821e-06
0.5093071.8252051.483782e-06
0.5114721.8246361.418467e-06
0.5136471.8240731.352873e-06
0.515831.8235161.287001e-06
0.5180241.8229661.220849e-06
0.5202261.8224221.154415e-06
0.5224381.8218831.087699e-06
0.5246591.8213511.020700e-06
0.526891.8208249.534152e-07
0.529131.8203048.858447e-07
0.531381.8197888.179868e-07
0.5336391.8192797.498405e-07
0.5359081.8187756.814044e-07
0.5381861.8182766.126774e-07
0.5404741.8177825.436581e-07
0.5427721.8172944.743454e-07
0.545081.8168114.047380e-07
0.5461.8166213.769900e-07
0.5473981.8163343.696581e-07
0.5497251.8158613.574484e-07
0.5520621.8153933.451868e-07
0.5544091.814933.328730e-07
0.5567671.8144733.205069e-07
0.5591341.8140193.080882e-07
0.5615111.8135712.956168e-07
0.5638981.8131272.830923e-07
0.5662961.8126882.705145e-07
0.5687041.8122532.578833e-07
0.5711211.8118232.451983e-07
0.573551.8113982.324595e-07
0.5759881.8109762.196664e-07
0.5784371.8105592.068190e-07
0.581.8102961.986200e-07
0.5808961.8101471.973309e-07
0.5833661.8097381.937793e-07
0.5858471.8093341.902127e-07
0.5883371.8089331.866309e-07
0.5908391.8085371.830339e-07
0.5933511.8081451.794215e-07
0.5958741.8077571.757938e-07
0.5984071.8073721.721507e-07
0.6009511.8069911.684921e-07
0.6035061.8066151.648180e-07
0.6060721.8062421.611282e-07
0.6086491.8058721.574227e-07
0.6112371.8055061.537015e-07
0.6138361.8051441.499645e-07
0.6164451.8047861.462115e-07
0.6190661.8044311.424427e-07
0.621.8043051.411000e-07
0.6216981.8040791.396984e-07
0.6243421.8037311.375171e-07
0.6269961.8033861.353265e-07
0.6296621.8030451.331265e-07
0.6323391.8027071.309172e-07
0.6350271.8023721.286986e-07
0.6377271.802041.264704e-07
0.6404391.8017121.242329e-07
0.6431621.8013861.219858e-07
0.6458961.8010641.197291e-07
0.6486421.8007451.174629e-07
0.65141.8004291.151870e-07
0.654171.8001161.129014e-07
0.6569511.7998051.106061e-07
0.6597441.7994981.083011e-07
0.661.799471.080900e-07
0.6625491.7991941.067211e-07
0.6653661.7988921.052085e-07
0.6681951.7985931.036894e-07
0.6710361.7982981.021639e-07
0.6738891.7980041.006319e-07
0.6767541.7977149.909341e-08
0.6796321.7974269.754836e-08
0.6825211.7971419.599673e-08
0.6854231.7968589.443851e-08
0.6883371.7965789.287366e-08
0.6912641.7963019.130216e-08
0.6942031.7960268.972398e-08
0.6971541.7957548.813909e-08
0.71.7954958.661100e-08
0.7001181.7954848.658927e-08
0.7030951.7952168.604256e-08
0.7060841.7949518.549353e-08
0.7090861.7946898.494216e-08
0.7121011.7944288.438845e-08
0.7151291.794178.383239e-08
0.7181691.7939158.327396e-08
0.7212231.7936618.271316e-08
0.7242891.793418.214997e-08
0.7273691.7931618.158439e-08
0.7304611.7929148.101640e-08
0.7335671.792678.044600e-08
0.7366861.7924277.987318e-08
0.7398181.7921877.929791e-08
0.7429631.7919497.872021e-08
0.7461221.7917137.814004e-08
0.7492941.7914787.755741e-08
0.752481.7912467.697230e-08
0.7556791.7910167.638471e-08
0.7588921.7907887.579462e-08
0.7621191.7905627.520201e-08
0.7653591.7903377.460689e-08
0.7686131.7901157.400924e-08
0.7718811.7898947.340905e-08
0.7751631.7896767.280630e-08
0.7784591.7894597.220100e-08
0.7817681.7892447.159311e-08
0.7850921.7890317.098265e-08
0.788431.7888197.036959e-08
0.7917821.7886096.975392e-08
0.7951491.7884026.913563e-08
0.7985291.7881956.851472e-08
0.8019241.7879916.789117e-08
0.8053341.7877886.726496e-08
0.8087581.7875866.663609e-08
0.8121971.7873876.600455e-08
0.815651.7871896.537033e-08
0.8191181.7869926.473340e-08
0.82261.7867986.409377e-08
0.8260981.7866046.345142e-08
0.829611.7864136.280634e-08
0.8331371.7862226.215852e-08
0.8366791.7860346.150794e-08
0.8402371.7858466.085459e-08
0.8438091.785666.019847e-08
0.8473971.7854765.953956e-08
0.8509991.7852935.887785e-08
0.8546181.7851125.821332e-08
0.8582511.7849325.754597e-08
0.86191.7847535.687578e-08
0.8655651.7845765.620274e-08
0.8692451.7843995.552684e-08
0.8729411.7842255.484807e-08
0.8766521.7840515.416641e-08
0.8803791.7838795.348185e-08
0.8841221.7837095.279438e-08
0.8878811.7835395.210399e-08
0.8916561.7833715.141066e-08
0.8954471.7832045.071438e-08
0.8992541.7830385.001515e-08
0.9030781.7828734.931294e-08
0.9069171.782714.860775e-08
0.9107731.7825484.789956e-08
0.9146461.7823874.718835e-08
0.9185341.7822274.647413e-08
0.922441.7820684.575686e-08
0.9263621.781914.503655e-08
0.93031.7817544.431318e-08
0.9342551.7815984.358673e-08
0.9382281.7814444.285719e-08
0.9422171.781294.212454e-08
0.9462231.7811384.138879e-08
0.9502461.7809874.064990e-08
0.9542861.7808373.990788e-08
0.9583431.7806873.916270e-08
0.9624181.7805393.841435e-08
0.966511.7803923.766282e-08
0.9706191.7802463.690809e-08
0.9747461.78013.615016e-08
0.978891.7799563.538900e-08
0.9830521.7798123.462461e-08
0.9872311.779673.385696e-08
0.9914291.7795283.308606e-08
0.9956441.7793883.231187e-08
0.9998771.7792483.153439e-08
1.004131.7791093.075361e-08
1.00841.7789712.996951e-08
1.012681.7788342.918207e-08
1.016991.7786972.839129e-08
1.021311.7785622.759715e-08
1.025661.7784272.679962e-08
1.030021.7782932.599871e-08
1.03441.778162.519439e-08
1.038791.7780272.438666e-08
1.043211.7778962.357548e-08
1.047651.7777652.276086e-08
1.05211.7776352.194278e-08
1.056571.7775052.112122e-08
1.061.7774072.049200e-08
1.061071.7773772.058719e-08
1.065581.7772492.098991e-08
1.070111.7771222.139435e-08
1.074661.7769952.180051e-08
1.079231.7768692.220839e-08
1.083821.7767442.261801e-08
1.088421.7766192.302937e-08
1.093051.7764962.344247e-08
1.09771.7763722.385734e-08
1.102371.776252.427397e-08
1.107051.7761282.469237e-08
1.111761.7760062.511255e-08
1.116491.7758862.553451e-08
1.121231.7757652.595827e-08
1.1261.7756462.638383e-08
1.130791.7755272.681120e-08
1.13561.7754082.724039e-08
1.140421.7752912.767140e-08
1.145271.7751732.810425e-08
1.150141.7750562.853893e-08
1.155031.774942.897546e-08
1.159941.7748242.941385e-08
1.164871.7747092.985411e-08
1.169831.7745943.029623e-08
1.17481.774483.074024e-08
1.17981.7743663.118613e-08
1.184811.7742533.163392e-08
1.189851.774143.208361e-08
1.194911.7740273.253521e-08
1.199991.7739153.298874e-08
1.205091.7738043.344419e-08
1.210211.7736933.390158e-08
1.215361.7735823.436091e-08
1.220531.7734723.482220e-08
1.225721.7733623.528544e-08
1.230931.7732523.575066e-08
1.236161.7731433.621785e-08
1.241421.7730343.668704e-08
1.246691.7729263.715821e-08
1.251991.7728183.763139e-08
1.257321.772713.810658e-08
1.262661.7726033.858379e-08
1.268031.7724953.906303e-08
1.273421.7723893.954431e-08
1.278841.7722824.002764e-08
1.284271.7721764.051302e-08
1.289731.772074.100046e-08
1.295221.7719654.148997e-08
1.300721.7718594.198157e-08
1.306261.7717544.247526e-08
1.311811.771654.297104e-08
1.317391.7715454.346894e-08
1.322991.7714414.396895e-08
1.328611.7713374.447108e-08
1.334261.7712334.497536e-08
1.339931.771134.548177e-08
1.345631.7710264.599034e-08
1.351351.7709234.650107e-08
1.35711.770824.701397e-08
1.362871.7707174.752905e-08
1.368661.7706154.804633e-08
1.374481.7705124.856580e-08
1.380321.770414.908748e-08
1.386191.7703084.961138e-08
1.392091.7702065.013750e-08
1.398011.7701045.066587e-08
1.403951.7700035.119648e-08
1.409921.7699015.172934e-08
1.415911.76985.226447e-08
1.421931.7696985.280188e-08
1.427981.7695975.334157e-08
1.434051.7694965.388356e-08
1.440151.7693955.442785e-08
1.446271.7692945.497445e-08
1.452421.7691935.552338e-08
1.458591.7690925.607464e-08
1.46481.7689925.662825e-08
1.471021.7688915.718421e-08
1.477281.768795.774253e-08
1.483561.768695.830323e-08
1.489871.7685895.886631e-08
1.49621.7684885.943178e-08
1.502561.7683885.999966e-08
1.508951.7682876.056995e-08
1.515371.7681876.114267e-08
1.521811.7680866.171783e-08
1.528281.7679856.229543e-08
1.531.7679596.244900e-08
1.534781.7678856.784205e-08
1.54131.7677847.520831e-08
1.547861.7676838.260589e-08
1.554441.7675839.003492e-08
1.561051.7674829.749554e-08
1.567681.7673811.049879e-07
1.574351.767281.125121e-07
1.581041.7671791.200683e-07
1.587761.7670781.276566e-07
1.594511.7669761.352771e-07
1.601291.7668751.429301e-07
1.60811.7667741.506156e-07
1.614941.7666721.583338e-07
1.621811.766571.660848e-07
1.62871.7664681.738688e-07
1.635631.7663661.816858e-07
1.642581.7662641.895361e-07
1.649561.7661621.974198e-07
1.656581.7660592.053370e-07
1.663621.7659572.132878e-07
1.670691.7658542.212724e-07
1.67781.7657512.292910e-07
1.684931.7656482.373437e-07
1.692091.7655442.454307e-07
1.699291.7654412.535520e-07
1.706511.7653372.617078e-07
1.713771.7652332.698983e-07
1.721051.7651282.781237e-07
1.728371.7650242.863840e-07
1.735721.7649192.946794e-07
1.74311.7648143.030101e-07
1.750511.7647093.113762e-07
1.757951.7646033.197779e-07
1.765431.7644973.282153e-07
1.772931.7643913.366886e-07
1.780471.7642843.451979e-07
1.788041.7641783.537434e-07
1.795641.7640713.623252e-07
1.803281.7639633.709435e-07
1.810951.7638553.795985e-07
1.818641.7637473.882902e-07
1.826381.7636393.970189e-07
1.834141.763534.057847e-07
1.841941.7634214.145878e-07
1.849771.7633114.234283e-07
1.857641.7632014.323064e-07
1.865531.7630914.412222e-07
1.873471.762984.501760e-07
1.881431.7628694.591678e-07
1.889431.7627584.681979e-07
1.897461.7626464.772663e-07
1.905531.7625334.863733e-07
1.913631.762424.955190e-07
1.921771.7623075.047036e-07
1.929941.7621935.139273e-07
1.938151.7620795.231901e-07
1.946391.7619645.324924e-07
1.954661.7618495.418342e-07
1.962971.7617345.512157e-07
1.971.7616365.591500e-07
1.971321.7616185.660646e-07
1.97971.7615016.100575e-07
1.988121.7613846.542373e-07
1.996571.7612666.986051e-07
2.005061.7611487.431614e-07
2.013581.7610297.879072e-07
2.022141.760918.328433e-07
2.030741.760798.779704e-07
2.039371.7606699.232893e-07
2.048051.7605489.688010e-07
2.056751.7604271.014506e-06
2.06551.7603041.060406e-06
2.074281.7601821.106500e-06
2.08311.7600581.152791e-06
2.091961.7599341.199278e-06
2.100851.7598091.245963e-06
2.109781.7596841.292847e-06
2.118751.7595581.339930e-06
2.127761.7594311.387213e-06
2.136811.7593041.434697e-06
2.145891.7591761.482383e-06
2.155021.7590471.530271e-06
2.164181.7589181.578364e-06
2.173381.7587881.626661e-06
2.182621.7586571.675163e-06
2.19191.7585261.723871e-06
2.201221.7583931.772787e-06
2.210581.758261.821910e-06
2.219981.7581261.871242e-06
2.229411.7579921.920784e-06
2.238891.7578561.970537e-06
2.248411.757722.020501e-06
2.257971.7575832.070678e-06
2.267571.7574462.121068e-06
2.277211.7573072.171672e-06
2.286891.7571672.222491e-06
2.296621.7570272.273527e-06
2.306381.7568862.324779e-06
2.316191.7567442.376249e-06
2.3251.7566162.422500e-06
2.326041.7566012.427719e-06
2.335931.7564582.477528e-06
2.345861.7563132.527549e-06
2.355831.7561672.577783e-06
2.365851.7560212.628230e-06
2.375911.7558732.678892e-06
2.386011.7557252.729769e-06
2.396151.7555762.780863e-06
2.406341.7554262.832174e-06
2.416571.7552742.883703e-06
2.426851.7551222.935451e-06
2.437161.7549692.987419e-06
2.447531.7548153.039608e-06
2.457931.7546593.092019e-06
2.468381.7545033.144652e-06
2.478881.7543463.197510e-06
2.489421.7541883.250592e-06
2.51.7540283.303900e-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
—