Optical constants

Refractive index of H-ZLAF1 (CDGM)

H-ZLAF1: n,k 0.365–2.325 µm

Data
formula 2 + tabulated k
Range
0.365–2.325 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–2.325 µm
Refractive index n
1.80166
Extinction coefficient k
2.81403e-08
Permittivity ε1
3.24597
Permittivity ε2
1.01398e-07
Absorption coefficient α
0.00601806 cm⁻¹
Penetration depth δ = λ/(2πk)
3.32333e+09 nm
Abbe number Vd
44.263
Chromatic dispersion dn/dλ
-0.0927089 µm⁻¹
Group index ng
1.85613
Group velocity dispersion
171.272 fs²/mm
Dispersion parameter D
-934.377 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-ZLAF1 (CDGM): H-ZLAF1
cdgm_h_zlaf1 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZLAF1", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zlaf1.range_nm)  # (365, 2325) nm
eps = cdgm_h_zlaf1.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=0.513637795λ2λ2−0.0313064446+1.65030785λ2λ2−0.0073538878+1.47644096λ2λ2−100.105262

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C20.513637795
C30.0313064446
C41.65030785
C50.0073538878
C61.47644096
C7100.105262

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 3.15e-06 1.76e-08 -6.68e-11 5.2e-07 1.18e-10 0.262
nd
1.801660
Vd
44.263459
glass code
802443
density
value: 4300
thermal expansion
value: 5.3e-06, temperature range: 243 343; value: 7.2e-06, temperature range: 293 573
dPgF
-0.0078
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 2.93e-06 K⁻¹ at 633 nm, dn/dT = 2.10e-06 K⁻¹ at 1310 nm, dn/dT = 2.04e-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 425 wavelengths, the same grid as the API and the library
H-ZLAF1 (CDGM), H-ZLAF1: n and k versus wavelength
λ (µm)nk
0.3651.8482885.795250e-07
0.3666981.8475155.358609e-07
0.3684031.846754.919938e-07
0.371.8460474.509300e-07
0.3701171.8459964.491868e-07
0.3718381.8452514.235221e-07
0.3735681.8445163.977381e-07
0.3753061.8437893.718341e-07
0.3770511.8430723.458096e-07
0.3788051.8423643.196641e-07
0.381.8418883.018500e-07
0.3805671.8416652.965615e-07
0.3823371.8409742.800514e-07
0.3841161.8402922.634645e-07
0.3859021.8396182.468004e-07
0.3876971.8389522.300588e-07
0.38951.8382952.132394e-07
0.391.8381142.085800e-07
0.3913121.8376452.017569e-07
0.3931321.8370031.922922e-07
0.3949611.836371.827836e-07
0.3967981.8357431.732307e-07
0.3986441.8351241.636334e-07
0.41.8346761.565800e-07
0.4004981.8345131.552165e-07
0.4023611.8339091.501142e-07
0.4042321.8333121.449881e-07
0.4061121.8327221.398382e-07
0.4080011.8321391.346643e-07
0.4098991.8315631.294664e-07
0.4118061.8309941.242443e-07
0.4137211.8304311.189979e-07
0.4156451.8298751.137271e-07
0.4175791.8293251.084318e-07
0.4195211.8287821.031118e-07
0.421.8286491.018000e-07
0.4214721.8282451.000398e-07
0.4234331.8277149.769625e-08
0.4254021.8271899.534178e-08
0.4273811.826679.297636e-08
0.4293691.8261579.059994e-08
0.4313661.825658.821246e-08
0.4333721.8251498.581388e-08
0.4353881.8246538.340414e-08
0.4374131.8241638.098320e-08
0.4394481.8236787.855099e-08
0.441.8235487.789100e-08
0.4414921.8231997.676265e-08
0.4435451.8227257.520957e-08
0.4456091.8222577.364926e-08
0.4476811.8217937.208170e-08
0.4497641.8213357.050685e-08
0.4518561.8208826.892467e-08
0.4539571.8204336.733513e-08
0.4560691.819996.573820e-08
0.458191.8195526.413384e-08
0.461.8191836.276500e-08
0.4603211.8191186.255966e-08
0.4624621.8186896.119117e-08
0.4646131.8182655.981632e-08
0.4667751.8178455.843507e-08
0.4689461.817435.704740e-08
0.4711271.8170195.565327e-08
0.4733181.8166135.425266e-08
0.475521.8162115.284553e-08
0.4777321.8158135.143186e-08
0.4799541.8154195.001161e-08
0.481.8154114.998200e-08
0.4821861.815034.888972e-08
0.4844291.8146454.776910e-08
0.4866821.8142644.664327e-08
0.4889461.8138864.551220e-08
0.491221.8135134.437587e-08
0.4935051.8131444.323426e-08
0.49581.8127794.208733e-08
0.4981071.8124174.093508e-08
0.51.8121243.998900e-08
0.5004231.8120593.987343e-08
0.5027511.8117053.923803e-08
0.5050891.8113543.859967e-08
0.5074391.8110073.795835e-08
0.5097991.8106643.731405e-08
0.512171.8103243.666675e-08
0.5145531.8099883.601643e-08
0.5169461.8096553.536309e-08
0.519351.8093253.470672e-08
0.5217661.8089993.404729e-08
0.5241931.8086763.338479e-08
0.5266311.8083563.271921e-08
0.5290811.808043.205054e-08
0.5315421.8077263.137875e-08
0.5340141.8074163.070384e-08
0.5364981.8071093.002580e-08
0.5389931.8068052.934459e-08
0.54151.8065042.866022e-08
0.5440191.8062062.797267e-08
0.5465491.8059112.728192e-08
0.5490921.8056182.658795e-08
0.551.8055152.634000e-08
0.5516461.8053292.641880e-08
0.5542121.8050422.654165e-08
0.5567891.8047582.666508e-08
0.5593791.8044772.678908e-08
0.5619811.8041992.691365e-08
0.5645951.8039232.703881e-08
0.5672211.803652.716455e-08
0.5698591.803382.729087e-08
0.572511.8031122.741778e-08
0.5751731.8028472.754528e-08
0.5778481.8025842.767338e-08
0.5805361.8023232.780207e-08
0.5832361.8020662.793136e-08
0.5859491.801812.806125e-08
0.5886751.8015572.819174e-08
0.5914131.8013062.832284e-08
0.5941641.8010582.845455e-08
0.5969271.8008122.858688e-08
0.5997041.8005682.871982e-08
0.61.8005422.873400e-08
0.6024931.8003272.885342e-08
0.6052961.8000872.898766e-08
0.6081111.799852.912252e-08
0.610941.7996152.925800e-08
0.6137811.7993822.939412e-08
0.6166361.7991522.953087e-08
0.6195041.7989232.966826e-08
0.6223861.7986962.980628e-08
0.6252811.7984722.994495e-08
0.6281891.7982493.008426e-08
0.6311111.7980293.022422e-08
0.6340471.797813.036483e-08
0.6369961.7975933.050609e-08
0.6399591.7973783.064802e-08
0.6429351.7971653.079060e-08
0.6459261.7969543.093384e-08
0.648931.7967453.107775e-08
0.651.7966713.112900e-08
0.6519491.7965373.100402e-08
0.6549811.7963323.080952e-08
0.6580281.7961283.061412e-08
0.6610881.7959263.041780e-08
0.6641631.7957253.022058e-08
0.6672521.7955263.002243e-08
0.6703561.7953292.982337e-08
0.6734741.7951342.962337e-08
0.6766071.794942.942245e-08
0.6797541.7947482.922060e-08
0.6829151.7945572.901780e-08
0.6860921.7943682.881406e-08
0.6892831.794182.860938e-08
0.6924891.7939942.840374e-08
0.695711.793812.819714e-08
0.6989461.7936272.798959e-08
0.71.7935682.792200e-08
0.7021971.7934452.786913e-08
0.7054631.7932652.779055e-08
0.7087451.7930862.771160e-08
0.7120411.7929092.763228e-08
0.7153531.7927332.755260e-08
0.7186811.7925592.747254e-08
0.7220231.7923852.739212e-08
0.7253821.7922142.731131e-08
0.7287561.7920432.723013e-08
0.7321461.7918742.714858e-08
0.7355511.7917062.706664e-08
0.7389721.7915392.698433e-08
0.7424091.7913742.690163e-08
0.7458631.7912092.681854e-08
0.7493321.7910462.673507e-08
0.7528171.7908852.665122e-08
0.7563191.7907242.656697e-08
0.7598371.7905642.648233e-08
0.7633711.7904062.639729e-08
0.7669221.7902492.631186e-08
0.7704891.7900932.622604e-08
0.7740731.7899382.613981e-08
0.7776731.7897842.605318e-08
0.781291.7896312.596615e-08
0.7849241.7894792.587872e-08
0.7885751.7893282.579088e-08
0.7922431.7891792.570263e-08
0.7959281.789032.561396e-08
0.799631.7888822.552489e-08
0.81.7888672.551600e-08
0.803351.7887352.471379e-08
0.8070861.7885892.381894e-08
0.810841.7884442.291993e-08
0.8146121.78832.201673e-08
0.8184011.7881572.110933e-08
0.8222081.7880152.019772e-08
0.8260321.7878741.928186e-08
0.8298741.7877331.836174e-08
0.8337341.7875941.743734e-08
0.8376121.7874551.650865e-08
0.8415081.7873171.557563e-08
0.8454221.787181.463827e-08
0.8493551.7870441.369656e-08
0.851.7870221.354200e-08
0.8533051.7869081.359462e-08
0.8572741.7867741.365781e-08
0.8612621.786641.372129e-08
0.8652681.7865071.378506e-08
0.8692921.7863741.384913e-08
0.8733361.7862421.391350e-08
0.8773981.7861111.397817e-08
0.8814791.7859811.404315e-08
0.8855791.7858511.410842e-08
0.8896981.7857221.417399e-08
0.8938361.7855941.423988e-08
0.8979941.7854661.430606e-08
0.91.7854051.433800e-08
0.9021711.7853391.437260e-08
0.9063671.7852131.443949e-08
0.9105831.7850871.450669e-08
0.9148181.7849621.457420e-08
0.9190731.7848371.464203e-08
0.9233481.7847131.471017e-08
0.9276431.784591.477863e-08
0.9319581.7844671.484741e-08
0.9362931.7843441.491651e-08
0.9406481.7842231.498593e-08
0.9450231.7841011.505567e-08
0.9494191.783981.512573e-08
0.951.7839641.513500e-08
0.9538351.783861.519605e-08
0.9582711.783741.526668e-08
0.9627291.7836211.533764e-08
0.9672071.7835021.540893e-08
0.9717051.7833831.548055e-08
0.9762251.7832651.555250e-08
0.9807661.7831471.562479e-08
0.9853281.783031.569742e-08
0.9899111.7829131.577038e-08
0.9945151.7827971.584368e-08
0.9991411.7826811.591732e-08
11.7826591.593100e-08
1.003791.7825651.599136e-08
1.008461.782451.606575e-08
1.013151.7823351.614049e-08
1.017861.782221.621558e-08
1.022591.7821051.629101e-08
1.027351.7819911.636680e-08
1.032131.7818781.644293e-08
1.036931.7817641.651943e-08
1.041751.7816511.659628e-08
1.04661.7815381.667348e-08
1.051471.7814251.675105e-08
1.056361.7813131.682897e-08
1.061.781231.688700e-08
1.061271.7812011.690726e-08
1.066211.7810891.698593e-08
1.071171.7809771.706496e-08
1.076151.7808661.714435e-08
1.081151.7807541.722412e-08
1.086181.7806431.730426e-08
1.091241.7805321.738477e-08
1.096311.7804211.746565e-08
1.101411.7803111.754691e-08
1.106531.78021.762855e-08
1.111681.780091.771057e-08
1.116851.7799791.779297e-08
1.122051.7798691.787576e-08
1.127271.7797591.795892e-08
1.132511.7796491.804248e-08
1.137781.7795391.812642e-08
1.143071.779431.821076e-08
1.148391.779321.829549e-08
1.153731.779211.838061e-08
1.159091.77911.846612e-08
1.164481.7789911.855204e-08
1.16991.7788811.863835e-08
1.175341.7787721.872507e-08
1.180811.7786621.881219e-08
1.18631.7785521.889971e-08
1.191821.7784431.898764e-08
1.197361.7783331.907598e-08
1.21.7782811.911800e-08
1.202931.7782231.916472e-08
1.208531.7781141.925385e-08
1.214151.7780041.934340e-08
1.21981.7778941.943336e-08
1.225471.7777841.952374e-08
1.231171.7776741.961454e-08
1.23691.7775631.970577e-08
1.242651.7774531.979742e-08
1.248431.7773431.988949e-08
1.254241.7772321.998199e-08
1.260071.7771212.007493e-08
1.265931.7770112.016829e-08
1.271821.7768992.026209e-08
1.277741.7767882.035633e-08
1.283681.7766772.045101e-08
1.289651.7765652.054612e-08
1.295651.7764532.064168e-08
1.301671.7763412.073768e-08
1.307731.7762292.083413e-08
1.313811.7761172.093103e-08
1.319921.7760042.102837e-08
1.326061.7758912.112617e-08
1.332231.7757772.122443e-08
1.338431.7756642.132314e-08
1.344651.775552.142231e-08
1.350911.7754362.152195e-08
1.357191.7753212.162204e-08
1.36351.7752062.172260e-08
1.369851.7750912.182363e-08
1.376221.7749762.192513e-08
1.382621.774862.202711e-08
1.389051.7747442.212955e-08
1.395511.7746272.223247e-08
1.41.7745462.230400e-08
1.4021.774512.233588e-08
1.408521.7743922.243976e-08
1.415071.7742752.254412e-08
1.421661.7741562.264897e-08
1.428271.7740382.275431e-08
1.434911.7739182.286014e-08
1.441591.7737992.296646e-08
1.448291.7736792.307328e-08
1.455031.7735582.318059e-08
1.46181.7734372.328840e-08
1.468591.7733152.339671e-08
1.475431.7731932.350553e-08
1.482291.773072.361485e-08
1.489181.7729472.372468e-08
1.496111.7728242.383503e-08
1.503071.7726992.394588e-08
1.510061.7725742.405725e-08
1.517081.7724492.416914e-08
1.524141.7723232.428155e-08
1.531231.7721962.439448e-08
1.538351.7720692.450794e-08
1.545511.7719412.462193e-08
1.55271.7718122.473644e-08
1.559921.7716832.485149e-08
1.567171.7715532.496707e-08
1.574461.7714222.508319e-08
1.581791.7712912.519985e-08
1.589141.7711582.531706e-08
1.596541.7710262.543481e-08
1.61.7709632.549000e-08
1.603961.7708922.583752e-08
1.611421.7707582.649203e-08
1.618921.7706232.714959e-08
1.626451.7704872.781021e-08
1.634011.770352.847390e-08
1.641611.7702122.914068e-08
1.649251.7700742.981055e-08
1.656921.7699353.048355e-08
1.664631.7697953.115967e-08
1.672371.7696543.183894e-08
1.680151.7695123.252137e-08
1.687961.769373.320697e-08
1.695811.7692263.389577e-08
1.70371.7690813.458776e-08
1.711631.7689363.528298e-08
1.719591.768793.598143e-08
1.727591.7686423.668312e-08
1.735621.7684943.738808e-08
1.743691.7683453.809632e-08
1.751811.7681943.880786e-08
1.759951.7680433.952270e-08
1.768141.767894.024087e-08
1.776361.7677374.096238e-08
1.784631.7675824.168724e-08
1.792931.7674274.241548e-08
1.81.7672944.303600e-08
1.801271.767274.552198e-08
1.809641.7671126.196830e-08
1.818061.7669537.849112e-08
1.826521.7667939.509079e-08
1.835011.7666311.117677e-07
1.843551.7664691.285221e-07
1.852121.7663051.453545e-07
1.860741.766141.622652e-07
1.869391.7659741.792545e-07
1.878091.7658061.963229e-07
1.886821.7656372.134706e-07
1.89561.7654672.306981e-07
1.904421.7652962.480058e-07
1.913281.7651232.653939e-07
1.922181.7649492.828629e-07
1.931121.7647733.004132e-07
1.94011.7645963.180451e-07
1.949121.7644183.357590e-07
1.958191.7642393.535553e-07
1.96731.7640573.714344e-07
1.976451.7638753.893967e-07
1.985641.7636914.074425e-07
1.994881.7635054.255722e-07
21.7634024.356300e-07
2.004161.7633184.580937e-07
2.013481.7631295.084917e-07
2.022841.7629395.591240e-07
2.032251.7627476.099919e-07
2.04171.7625546.610963e-07
2.05121.7623597.124385e-07
2.060741.7621627.640194e-07
2.070331.7619648.158403e-07
2.079961.7617648.679022e-07
2.089631.7615629.202063e-07
2.099351.7613589.727537e-07
2.109121.7611531.025545e-06
2.118931.7609461.078583e-06
2.128781.7607371.131867e-06
2.138681.7605261.185399e-06
2.148631.7603141.239180e-06
2.158621.7600991.293211e-06
2.168671.7598831.347493e-06
2.178751.7596641.402028e-06
2.188891.7594441.456816e-06
2.199071.7592221.511859e-06
2.21.7592011.516900e-06
2.20931.7589981.771943e-06
2.219571.7587712.053869e-06
2.22991.7585432.337107e-06
2.240271.7583122.621663e-06
2.250691.758082.907542e-06
2.261161.7578453.194750e-06
2.271671.7576083.483295e-06
2.282241.7573693.773182e-06
2.292861.7571284.064417e-06
2.303521.7568854.357007e-06
2.314241.7566394.650957e-06
2.3251.7563914.946275e-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
—