Optical constants

Refractive index of H-ZF6 (CDGM)

H-ZF6: n,k 0.4047–2.325 µm

Data
formula 2 + tabulated k
Range
0.4047–2.325 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.4047–2.325 µm
Refractive index n
1.7552
Extinction coefficient k
3.28468e-08
Permittivity ε1
3.08071
Permittivity ε2
1.15305e-07
Absorption coefficient α
0.0070246 cm⁻¹
Penetration depth δ = λ/(2πk)
2.84714e+09 nm
Abbe number Vd
27.53
Chromatic dispersion dn/dλ
-0.137529 µm⁻¹
Group index ng
1.83601
Group velocity dispersion
281.255 fs²/mm
Dispersion parameter D
-1534.39 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

# H-ZF6 (CDGM): H-ZF6
cdgm_h_zf6 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZF6", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zf6.range_nm)  # (404.7, 2325) nm
eps = cdgm_h_zf6.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=1.64768548λ2λ2−0.0118179362+0.314478021λ2λ2−0.0585408205+2.03864924λ2λ2−173.964477

Valid from 0.4047 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.64768548
C30.0118179362
C40.314478021
C50.0585408205
C62.03864924
C7173.964477

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -4.64e-06 1.36e-08 -1.23e-11 1.01e-06 1.13e-09 0.277
nd
1.755200
Vd
27.530047
glass code
755275
glass status
standard
density
value: 3240
thermal expansion
value: 8.7e-06, temperature range: 243 343; value: 1.04e-05, temperature range: 293 573
dPgF
0.0111
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -8.97e-07 K⁻¹ at 633 nm, dn/dT = -2.30e-06 K⁻¹ at 1310 nm, dn/dT = -2.39e-06 K⁻¹ at 1550 nm

References

Cite

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com); See also CDGM optical 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
H-ZF6 (CDGM), H-ZF6: n and k versus wavelength
λ (µm)nk
0.40471.8064633.449364e-07
0.4064771.8054713.256013e-07
0.4082621.8044933.061814e-07
0.4100551.8035292.866762e-07
0.4118561.802582.670854e-07
0.4136641.8016442.474085e-07
0.4154811.8007222.276452e-07
0.4173051.7998132.077951e-07
0.4191381.7989181.878579e-07
0.421.7985021.784800e-07
0.4209791.7980341.754962e-07
0.4228271.7971641.698596e-07
0.4246841.7963051.641982e-07
0.4265491.7954581.585119e-07
0.4284221.7946231.528007e-07
0.4303041.79381.470644e-07
0.4321931.7929881.413029e-07
0.4340911.7921871.355161e-07
0.4359971.7913961.297039e-07
0.4379121.7906171.238662e-07
0.4398351.7898471.180029e-07
0.441.7897821.175000e-07
0.4417671.7890881.149760e-07
0.4437071.7883391.122043e-07
0.4456551.78761.094204e-07
0.4476121.7868711.066243e-07
0.4495781.7861511.038159e-07
0.4515521.785441.009951e-07
0.4535351.7847399.816198e-08
0.4555271.7840479.531641e-08
0.4575271.7833639.245835e-08
0.4595361.7826888.958773e-08
0.461.7825348.892500e-08
0.4615541.7820228.770872e-08
0.4635811.7813648.612250e-08
0.4656171.7807148.452931e-08
0.4676611.7800728.292912e-08
0.4697151.7794398.132191e-08
0.4717781.7788137.970764e-08
0.473851.7781957.808628e-08
0.475931.7775847.645780e-08
0.478021.7769817.482216e-08
0.481.7764197.327300e-08
0.480121.7763867.319439e-08
0.4822281.7757977.180939e-08
0.4843461.7752167.041830e-08
0.4864731.7746416.902111e-08
0.4886091.7740746.761778e-08
0.4907551.7735136.620828e-08
0.492911.7729586.479260e-08
0.4950741.7724116.337070e-08
0.4972481.771876.194256e-08
0.4994321.7713356.050814e-08
0.51.7711976.013500e-08
0.5016251.7708065.917973e-08
0.5038281.7702835.788490e-08
0.5060411.7697675.658439e-08
0.5082631.7692565.527817e-08
0.5104951.7687525.396621e-08
0.5127361.7682535.264849e-08
0.5149881.767765.132499e-08
0.517251.7672724.999567e-08
0.5195211.766794.866051e-08
0.5218021.7663134.731949e-08
0.5240941.7658424.597259e-08
0.5263951.7653764.461976e-08
0.5287071.7649154.326100e-08
0.5310291.7644594.189627e-08
0.5333611.7640084.052555e-08
0.5357031.7635623.914880e-08
0.5380551.7631223.776601e-08
0.5404181.7626853.637715e-08
0.5427911.7622543.498219e-08
0.5451751.7618283.358111e-08
0.5475691.7614063.217387e-08
0.5499741.7609883.076045e-08
0.551.7609843.074500e-08
0.5523891.7605753.087854e-08
0.5548151.7601673.101414e-08
0.5572511.7597623.115033e-08
0.5596981.7593633.128713e-08
0.5621561.7589673.142452e-08
0.5646251.7585763.156252e-08
0.5671041.7581883.170112e-08
0.5695951.7578053.184033e-08
0.5720961.7574263.198016e-08
0.5746081.757053.212059e-08
0.5771311.7566793.226165e-08
0.5796661.7563113.240332e-08
0.5822111.7559483.254562e-08
0.5847681.7555883.268854e-08
0.5873361.7552313.283209e-08
0.5899151.7548793.297626e-08
0.5925061.754533.312108e-08
0.5951081.7541843.326652e-08
0.5977211.7538423.341261e-08
0.61.7535483.354000e-08
0.6003461.7535043.348734e-08
0.6029821.7531683.308598e-08
0.605631.7528373.268286e-08
0.608291.7525083.227796e-08
0.6109611.7521833.187130e-08
0.6136441.7518613.146284e-08
0.6163391.7515423.105259e-08
0.6190451.7512263.064054e-08
0.6217641.7509143.022668e-08
0.6244941.7506042.981100e-08
0.6272371.7502982.939350e-08
0.6299911.7499942.897416e-08
0.6327581.7496942.855299e-08
0.6355361.7493962.812996e-08
0.6383271.7491022.770507e-08
0.641131.748812.727832e-08
0.6439461.748522.684970e-08
0.6467741.7482342.641919e-08
0.6496141.747952.598679e-08
0.651.7479122.592800e-08
0.6524671.7476692.575031e-08
0.6553321.7473912.554390e-08
0.658211.7471152.533658e-08
0.66111.7468422.512835e-08
0.6640031.7465722.491921e-08
0.6669191.7463042.470915e-08
0.6698481.7460382.449817e-08
0.6727891.7457752.428626e-08
0.6757441.7455142.407342e-08
0.6787111.7452562.385964e-08
0.6816921.7452.364493e-08
0.6846851.7447462.342927e-08
0.6876921.7444952.321266e-08
0.6907121.7442462.299511e-08
0.6937451.7439992.277660e-08
0.6967921.7437552.255713e-08
0.6998521.7435132.233669e-08
0.71.7435012.232600e-08
0.7029251.7432722.223243e-08
0.7060121.7430342.213369e-08
0.7091121.7427982.203450e-08
0.7122261.7425642.193489e-08
0.7153541.7423332.183483e-08
0.7184951.7421032.173434e-08
0.721651.7418752.163341e-08
0.7248191.7416492.153203e-08
0.7280021.7414252.143021e-08
0.7311991.7412032.132794e-08
0.734411.7409832.122522e-08
0.7376351.7407652.112205e-08
0.7408751.7405492.101842e-08
0.7441281.7403342.091434e-08
0.7473961.7401222.080981e-08
0.7506781.7399112.070481e-08
0.7539741.7397022.059936e-08
0.7572851.7394942.049344e-08
0.7606111.7392892.038705e-08
0.7639511.7390852.028020e-08
0.7673061.7388832.017288e-08
0.7706751.7386822.006509e-08
0.774061.7384831.995683e-08
0.7774591.7382861.984809e-08
0.7808731.738091.973887e-08
0.7843021.7378961.962917e-08
0.7877461.7377031.951899e-08
0.7912061.7375121.940833e-08
0.794681.7373221.929718e-08
0.798171.7371341.918554e-08
0.81.7370361.912700e-08
0.8016751.7369471.893990e-08
0.8051961.7367621.854666e-08
0.8087311.7365781.815170e-08
0.8122831.7363961.775500e-08
0.815851.7362151.735656e-08
0.8194331.7360351.695637e-08
0.8230311.7358571.655442e-08
0.8266451.735681.615071e-08
0.8302761.7355051.574523e-08
0.8339221.735331.533796e-08
0.8375841.7351581.492891e-08
0.8412621.7349861.451806e-08
0.8449561.7348151.410540e-08
0.8486671.7346461.369094e-08
0.851.7345861.354200e-08
0.8523931.7344781.358010e-08
0.8561371.7343111.363970e-08
0.8598961.7341461.369955e-08
0.8636721.7339811.375967e-08
0.8674651.7338181.382005e-08
0.8712751.7336561.388069e-08
0.8751011.7334951.394160e-08
0.8789441.7333351.400278e-08
0.8828031.7331761.406423e-08
0.886681.7330191.412595e-08
0.8905741.7328621.418794e-08
0.8944851.7327061.425020e-08
0.8984131.7325521.431273e-08
0.91.732491.433800e-08
0.9023581.7323981.437559e-08
0.9063211.7322461.443875e-08
0.9103011.7320941.450219e-08
0.9142981.7319441.456591e-08
0.9183131.7317941.462991e-08
0.9223461.7316451.469419e-08
0.9263961.7314981.475876e-08
0.9304641.7313511.482360e-08
0.934551.7312051.488873e-08
0.9386541.731061.495415e-08
0.9427761.7309161.501986e-08
0.9469161.7307731.508585e-08
0.951.7306671.513500e-08
0.9510751.730631.515211e-08
0.9552511.7304891.521860e-08
0.9594461.7303481.528538e-08
0.963661.7302081.535246e-08
0.9678911.7300691.541983e-08
0.9721421.7299311.548750e-08
0.9764111.7297931.555546e-08
0.9806991.7296561.562372e-08
0.9850051.729521.569228e-08
0.9893311.7293851.576115e-08
0.9936751.729251.583031e-08
0.9980391.7291161.589978e-08
11.7290571.593100e-08
1.002421.7289831.596959e-08
1.006821.7288511.603972e-08
1.011251.7287191.611017e-08
1.015691.7285881.618093e-08
1.020151.7284571.625199e-08
1.024631.7283271.632337e-08
1.029131.7281981.639507e-08
1.033641.728071.646707e-08
1.038181.7279421.653940e-08
1.042741.7278141.661204e-08
1.047321.7276871.668500e-08
1.051921.7275611.675828e-08
1.056541.7274351.683188e-08
1.061.7273421.688700e-08
1.061181.727311.690581e-08
1.065841.7271861.698007e-08
1.070521.7270621.705466e-08
1.075221.7269381.712957e-08
1.079941.7268151.720482e-08
1.084691.7266921.728039e-08
1.089451.726571.735630e-08
1.094231.7264491.743254e-08
1.099041.7263281.750911e-08
1.103871.7262071.758602e-08
1.108711.7260871.766327e-08
1.113581.7259671.774086e-08
1.118471.7258481.781879e-08
1.123381.7257291.789706e-08
1.128321.725611.797567e-08
1.133271.7254921.805463e-08
1.138251.7253741.813394e-08
1.143251.7252571.821359e-08
1.148271.725141.829360e-08
1.153311.7250231.837395e-08
1.158371.7249071.845466e-08
1.163461.7247911.853572e-08
1.168571.7246751.861714e-08
1.17371.724561.869892e-08
1.178861.7244441.878106e-08
1.184031.724331.886355e-08
1.189231.7242151.894641e-08
1.194451.7241011.902963e-08
1.19971.7239871.911322e-08
1.21.723981.911800e-08
1.204971.7238732.030864e-08
1.210261.723762.157670e-08
1.215571.7236462.285032e-08
1.220911.7235332.412953e-08
1.226271.723422.541436e-08
1.231661.7233082.670483e-08
1.237071.7231952.800098e-08
1.24251.7230832.930281e-08
1.247961.7229713.061036e-08
1.253441.7228593.192365e-08
1.258941.7227473.324271e-08
1.264471.7226363.456756e-08
1.270021.7225243.589823e-08
1.27561.7224133.723474e-08
1.28121.7223023.857712e-08
1.286831.7221913.992540e-08
1.292481.722084.127959e-08
1.298151.7219694.263974e-08
1.303861.7218584.400585e-08
1.309581.7217474.537797e-08
1.315331.7216364.675611e-08
1.321111.7215264.814030e-08
1.326911.7214154.953058e-08
1.332741.7213045.092695e-08
1.338591.7211945.232946e-08
1.344471.7210835.373813e-08
1.350371.7209735.515299e-08
1.35631.7208625.657405e-08
1.362261.7207525.800136e-08
1.368241.7206415.943494e-08
1.374251.720536.087481e-08
1.380281.720426.232100e-08
1.386341.7203096.377355e-08
1.392431.7201986.523247e-08
1.398551.7200876.669780e-08
1.41.7200616.704600e-08
1.404691.7199766.817276e-08
1.410861.7198656.965518e-08
1.417051.7197547.114411e-08
1.423281.7196437.263958e-08
1.429531.7195327.414162e-08
1.43581.719427.565026e-08
1.442111.7193097.716552e-08
1.448441.7191977.868743e-08
1.45481.7190858.021603e-08
1.461191.7189738.175134e-08
1.467611.7188618.329339e-08
1.474051.7187498.484221e-08
1.480531.7186368.639784e-08
1.487031.7185238.796029e-08
1.493561.718418.952961e-08
1.500121.7182979.110582e-08
1.50671.7181849.268895e-08
1.513321.718079.427903e-08
1.519971.7179569.587610e-08
1.526641.7178429.748018e-08
1.533341.7177279.909130e-08
1.540081.7176131.007095e-07
1.546841.7174981.023348e-07
1.553631.7173821.039672e-07
1.560461.7172671.056069e-07
1.567311.7171511.072537e-07
1.574191.7170351.089077e-07
1.58111.7169181.105690e-07
1.588051.7168011.122376e-07
1.595021.7166841.139135e-07
1.61.71661.151100e-07
1.602031.7165661.176173e-07
1.609061.7164481.263247e-07
1.616131.716331.350703e-07
1.623221.7162111.438543e-07
1.630351.7160921.526769e-07
1.637511.7159721.615382e-07
1.64471.7158521.704385e-07
1.651931.7157321.793778e-07
1.659181.7156111.883564e-07
1.666471.715491.973744e-07
1.673781.7153682.064320e-07
1.681131.7152462.155294e-07
1.688521.7151232.246667e-07
1.695931.7152.338442e-07
1.703381.7148762.430620e-07
1.710861.7147512.523202e-07
1.718371.7146272.616191e-07
1.725921.7145012.709589e-07
1.73351.7143752.803396e-07
1.741111.7142492.897616e-07
1.748761.7141222.992249e-07
1.756441.7139943.087298e-07
1.764151.7138663.182764e-07
1.77191.7137373.278650e-07
1.779681.7136083.374956e-07
1.787491.7134783.471685e-07
1.795341.7133473.568840e-07
1.81.713273.626500e-07
1.803231.7132163.672792e-07
1.811141.7130843.786445e-07
1.81911.7129513.900597e-07
1.827091.7128184.015250e-07
1.835111.7126844.130406e-07
1.843171.7125494.246069e-07
1.851261.7124144.362239e-07
1.859391.7122784.478919e-07
1.867561.7121414.596112e-07
1.875761.7120034.713819e-07
1.8841.7118654.832043e-07
1.892271.7117254.950787e-07
1.900581.7115855.070052e-07
1.908921.7114455.189840e-07
1.917311.7113035.310155e-07
1.925731.7111615.430998e-07
1.934181.7110175.552372e-07
1.942681.7108735.674278e-07
1.951211.7107285.796720e-07
1.959781.7105825.919700e-07
1.968381.7104366.043220e-07
1.977031.7102886.167282e-07
1.985711.7101396.291889e-07
1.994431.709996.417043e-07
21.7098946.497000e-07
2.003191.709846.644352e-07
2.011981.7096887.051028e-07
2.020821.7095367.459489e-07
2.029691.7093837.869743e-07
2.038611.7092288.281800e-07
2.047561.7090738.695665e-07
2.056551.7089179.111349e-07
2.065581.7087599.528857e-07
2.074651.7086019.948200e-07
2.083761.7084411.036938e-06
2.092911.7082811.079242e-06
2.10211.7081191.121731e-06
2.111341.7079561.164406e-06
2.120611.7077931.207270e-06
2.129921.7076281.250321e-06
2.139271.7074611.293561e-06
2.148671.7072941.336991e-06
2.15811.7071261.380612e-06
2.167581.7069561.424425e-06
2.17711.7067851.468430e-06
2.186661.7066131.512628e-06
2.196261.7064391.557020e-06
2.21.7063721.574300e-06
2.205911.7062651.607656e-06
2.215591.7060891.662359e-06
2.225321.7059121.717301e-06
2.23511.7057331.772485e-06
2.244911.7055531.827912e-06
2.254771.7053721.883581e-06
2.264671.705191.939496e-06
2.274621.7050061.995655e-06
2.28461.704822.052062e-06
2.294641.7046342.108716e-06
2.304711.7044462.165619e-06
2.314831.7042562.222771e-06
2.3251.7040652.280175e-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
—