Optical constants

Refractive index of H-ZLAF52A (CDGM)

H-ZLAF52A: 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
1.8061
Extinction coefficient k
3.17544e-08
Permittivity ε1
3.26198
Permittivity ε2
1.14703e-07
Absorption coefficient α
0.00679097 cm⁻¹
Penetration depth δ = λ/(2πk)
2.94509e+09 nm
Abbe number Vd
41.017
Chromatic dispersion dn/dλ
-0.100279 µm⁻¹
Group index ng
1.86502
Group velocity dispersion
189.283 fs²/mm
Dispersion parameter D
-1032.64 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-ZLAF52A (CDGM): H-ZLAF52A
cdgm_h_zlaf52a = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZLAF52A", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zlaf52a.range_nm)  # (365, 2325) nm
eps = cdgm_h_zlaf52a.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=1.85313688λ2λ2−0.00985534639+0.317938591λ2λ2−0.0392611678+1.16396318λ2λ2−93.1032763

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.85313688
C30.00985534639
C40.317938591
C50.0392611678
C61.16396318
C793.1032763

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 8.88e-06 1.78e-08 -3.99e-11 8.58e-07 7.59e-10 0.22
nd
1.806100
Vd
41.016887
glass code
806410
density
value: 4480
thermal expansion
value: 6.1e-06, temperature range: 243 343; value: 7.5e-06, temperature range: 293 573
dPgF
-0.0067
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 7.06e-06 K⁻¹ at 633 nm, dn/dT = 5.72e-06 K⁻¹ at 1310 nm, dn/dT = 5.60e-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-ZLAF52A (CDGM), H-ZLAF52A: n and k versus wavelength
λ (µm)nk
0.3651.8574961.017840e-06
0.3666981.8566279.015927e-07
0.3684031.8557717.848046e-07
0.371.8549836.754800e-07
0.3701171.8549266.721016e-07
0.3718381.8540926.223629e-07
0.3735681.8532695.723930e-07
0.3753061.8524575.221906e-07
0.3770511.8516554.717547e-07
0.3788051.8508654.210842e-07
0.381.8503343.865600e-07
0.3805671.8500843.787415e-07
0.3823371.8493133.543330e-07
0.3841161.8485533.298110e-07
0.3859021.8478023.051749e-07
0.3876971.847062.804242e-07
0.38951.8463282.555584e-07
0.391.8461282.486700e-07
0.3913121.8456062.387857e-07
0.3931321.8448922.250747e-07
0.3949611.8441882.112999e-07
0.3967981.8434921.974611e-07
0.3986441.8428051.835579e-07
0.41.8423071.733400e-07
0.4004981.8421261.717311e-07
0.4023611.8414561.657104e-07
0.4042321.8407941.596617e-07
0.4061121.840141.535848e-07
0.4080011.8394941.474797e-07
0.4098991.8388561.413461e-07
0.4118061.8382261.351841e-07
0.4137211.8376031.289934e-07
0.4156451.8369881.227739e-07
0.4175791.836381.165254e-07
0.4195211.8357791.102479e-07
0.421.8356331.087000e-07
0.4214721.8351861.072238e-07
0.4234331.83461.052583e-07
0.4254021.834021.032836e-07
0.4273811.8334481.012998e-07
0.4293691.8328829.930673e-08
0.4313661.8323229.730440e-08
0.4333721.831779.529276e-08
0.4353881.8312239.327176e-08
0.4374131.8306839.124136e-08
0.4394481.830158.920152e-08
0.441.8300068.864800e-08
0.4414921.8296228.671721e-08
0.4435451.8291018.405964e-08
0.4456091.8285858.138971e-08
0.4476811.8280757.870736e-08
0.4497641.8275717.601254e-08
0.4518561.8270737.330518e-08
0.4539571.8265817.058523e-08
0.4560691.8260946.785262e-08
0.458191.8256126.510731e-08
0.461.8252076.276500e-08
0.4603211.8251366.249752e-08
0.4624621.8246656.071495e-08
0.4646131.82425.892408e-08
0.4667751.8237395.712488e-08
0.4689461.8232845.531731e-08
0.4711271.8228345.350133e-08
0.4733181.8223885.167691e-08
0.475521.8219484.984400e-08
0.4777321.8215124.800257e-08
0.4799541.8210814.615257e-08
0.481.8210724.611400e-08
0.4821861.8206554.500543e-08
0.4844291.8202344.386810e-08
0.4866821.8198174.272549e-08
0.4889461.8194044.157755e-08
0.491221.8189964.042428e-08
0.4935051.8185923.926565e-08
0.49581.8181933.810162e-08
0.4981071.8177983.693218e-08
0.51.8174783.597200e-08
0.5004231.8174073.589044e-08
0.5027511.817023.544204e-08
0.5050891.8166373.499156e-08
0.5074391.8162593.453899e-08
0.5097991.8158843.408431e-08
0.512171.8155133.362751e-08
0.5145531.8151473.316859e-08
0.5169461.8147843.270753e-08
0.519351.8144243.224433e-08
0.5217661.8140693.177898e-08
0.5241931.8137173.131146e-08
0.5266311.8133693.084176e-08
0.5290811.8130243.036989e-08
0.5315421.8126832.989581e-08
0.5340141.8123462.941953e-08
0.5364981.8120112.894104e-08
0.5389931.8116812.846032e-08
0.54151.8113532.797736e-08
0.5440191.8110292.749216e-08
0.5465491.8107082.700470e-08
0.5490921.8103912.651498e-08
0.551.8102792.634000e-08
0.5516461.8100772.657698e-08
0.5542121.8097652.694647e-08
0.5567891.8094572.731767e-08
0.5593791.8091522.769061e-08
0.5619811.808852.806527e-08
0.5645951.8085512.844168e-08
0.5672211.8082552.881984e-08
0.5698591.8079622.919976e-08
0.572511.8076722.958145e-08
0.5751731.8073842.996491e-08
0.5778481.80713.035016e-08
0.5805361.8068183.073720e-08
0.5832361.8065393.112604e-08
0.5859491.8062623.151668e-08
0.5886751.8059893.190915e-08
0.5914131.8057183.230344e-08
0.5941641.8054493.269956e-08
0.5969271.8051833.309753e-08
0.5997041.804923.349734e-08
0.61.8048923.354000e-08
0.6024931.8046593.393926e-08
0.6052961.8044013.438803e-08
0.6081111.8041453.483890e-08
0.610941.8038913.529186e-08
0.6137811.803643.574692e-08
0.6166361.8033913.620411e-08
0.6195041.8031453.666342e-08
0.6223861.80293.712486e-08
0.6252811.8026593.758846e-08
0.6281891.8024193.805421e-08
0.6311111.8021813.852212e-08
0.6340471.8019463.899221e-08
0.6369961.8017133.946449e-08
0.6399591.8014823.993897e-08
0.6429351.8012534.041565e-08
0.6459261.8010264.089455e-08
0.648931.8008014.137568e-08
0.651.8007224.154700e-08
0.6519491.8005794.167155e-08
0.6549811.8003584.186538e-08
0.6580281.8001394.206012e-08
0.6610881.7999224.225576e-08
0.6641631.7997074.245231e-08
0.6672521.7994944.264977e-08
0.6703561.7992834.284816e-08
0.6734741.7990744.304746e-08
0.6766071.7988664.324769e-08
0.6797541.7986614.344886e-08
0.6829151.7984574.365096e-08
0.6860921.7982554.385400e-08
0.6892831.7980544.405798e-08
0.6924891.7978564.426291e-08
0.695711.7976594.446880e-08
0.6989461.7974634.467564e-08
0.71.79744.474300e-08
0.7021971.797274.432053e-08
0.7054631.7970784.369255e-08
0.7087451.7968874.306164e-08
0.7120411.7966994.242781e-08
0.7153531.7965114.179102e-08
0.7186811.7963264.115127e-08
0.7220231.7961414.050855e-08
0.7253821.7959593.986283e-08
0.7287561.7957783.921411e-08
0.7321461.7955983.856238e-08
0.7355511.795423.790761e-08
0.7389721.7952433.724980e-08
0.7424091.7950673.658893e-08
0.7458631.7948933.592499e-08
0.7493321.7947213.525795e-08
0.7528171.7945493.458782e-08
0.7563191.794383.391456e-08
0.7598371.7942113.323818e-08
0.7633711.7940443.255865e-08
0.7669221.7938783.187596e-08
0.7704891.7937133.119009e-08
0.7740731.7935493.050103e-08
0.7776731.7933872.980877e-08
0.781291.7932262.911329e-08
0.7849241.7930662.841457e-08
0.7885751.7929072.771261e-08
0.7922431.792752.700737e-08
0.7959281.7925942.629886e-08
0.799631.7924382.558705e-08
0.81.7924232.551600e-08
0.803351.7922842.471379e-08
0.8070861.7921312.381894e-08
0.810841.791982.291993e-08
0.8146121.7918292.201673e-08
0.8184011.7916792.110933e-08
0.8222081.791532.019772e-08
0.8260321.7913831.928186e-08
0.8298741.7912361.836174e-08
0.8337341.791091.743734e-08
0.8376121.7909461.650865e-08
0.8415081.7908021.557563e-08
0.8454221.7906591.463827e-08
0.8493551.7905171.369656e-08
0.851.7904941.354200e-08
0.8533051.7903761.359462e-08
0.8572741.7902361.365781e-08
0.8612621.7900971.372129e-08
0.8652681.7899591.378506e-08
0.8692921.7898221.384913e-08
0.8733361.7896851.391350e-08
0.8773981.789551.397817e-08
0.8814791.7894151.404315e-08
0.8855791.7892811.410842e-08
0.8896981.7891481.417399e-08
0.8938361.7890161.423988e-08
0.8979941.7888841.430606e-08
0.91.7888211.433800e-08
0.9021711.7887531.437260e-08
0.9063671.7886231.443949e-08
0.9105831.7884941.450669e-08
0.9148181.7883651.457420e-08
0.9190731.7882371.464203e-08
0.9233481.788111.471017e-08
0.9276431.7879841.477863e-08
0.9319581.7878581.484741e-08
0.9362931.7877331.491651e-08
0.9406481.7876081.498593e-08
0.9450231.7874841.505567e-08
0.9494191.7873611.512573e-08
0.951.7873451.513500e-08
0.9538351.7872391.519605e-08
0.9582711.7871171.526668e-08
0.9627291.7869951.533764e-08
0.9672071.7868741.540893e-08
0.9717051.7867541.548055e-08
0.9762251.7866341.555250e-08
0.9807661.7865151.562479e-08
0.9853281.7863971.569742e-08
0.9899111.7862791.577038e-08
0.9945151.7861611.584368e-08
0.9991411.7860441.591732e-08
11.7860221.593100e-08
1.003791.7859271.599136e-08
1.008461.7858111.606575e-08
1.013151.7856961.614049e-08
1.017861.785581.621558e-08
1.022591.7854661.629101e-08
1.027351.7853511.636680e-08
1.032131.7852381.644293e-08
1.036931.7851241.651943e-08
1.041751.7850111.659628e-08
1.04661.7848981.667348e-08
1.051471.7847861.675105e-08
1.056361.7846741.682897e-08
1.061.7845911.688700e-08
1.061271.7845631.690726e-08
1.066211.7844511.698593e-08
1.071171.7843411.706496e-08
1.076151.784231.714435e-08
1.081151.784121.722412e-08
1.086181.784011.730426e-08
1.091241.78391.738477e-08
1.096311.7837911.746565e-08
1.101411.7836821.754691e-08
1.106531.7835731.762855e-08
1.111681.7834651.771057e-08
1.116851.7833561.779297e-08
1.122051.7832481.787576e-08
1.127271.7831411.795892e-08
1.132511.7830331.804248e-08
1.137781.7829261.812642e-08
1.143071.7828181.821076e-08
1.148391.7827111.829549e-08
1.153731.7826051.838061e-08
1.159091.7824981.846612e-08
1.164481.7823911.855204e-08
1.16991.7822851.863835e-08
1.175341.7821791.872507e-08
1.180811.7820731.881219e-08
1.18631.7819671.889971e-08
1.191821.7818611.898764e-08
1.197361.7817551.907598e-08
1.21.7817051.911800e-08
1.202931.7816491.932849e-08
1.208531.7815431.973009e-08
1.214151.7814382.013356e-08
1.21981.7813322.053890e-08
1.225471.7812272.094613e-08
1.231171.7811212.135525e-08
1.23691.7810162.176628e-08
1.242651.7809112.217921e-08
1.248431.7808052.259407e-08
1.254241.78072.301086e-08
1.260071.7805942.342958e-08
1.265931.7804892.385026e-08
1.271821.7803832.427289e-08
1.277741.7802782.469748e-08
1.283681.7801722.512405e-08
1.289651.7800672.555261e-08
1.295651.7799612.598316e-08
1.301671.7798552.641571e-08
1.307731.7797492.685027e-08
1.313811.7796432.728686e-08
1.319921.7795372.772547e-08
1.326061.7794312.816613e-08
1.332231.7793242.860883e-08
1.338431.7792182.905360e-08
1.344651.7791112.950043e-08
1.350911.7790042.994934e-08
1.357191.7788973.040034e-08
1.36351.778793.085344e-08
1.369851.7786833.130864e-08
1.376221.7785753.176596e-08
1.382621.7784673.222541e-08
1.389051.7783593.268700e-08
1.395511.7782513.315073e-08
1.41.7781763.347300e-08
1.4021.7781423.364868e-08
1.408521.7780333.422120e-08
1.415071.7779243.479639e-08
1.421661.7778153.537426e-08
1.428271.7777053.595481e-08
1.434911.7775953.653806e-08
1.441591.7774853.712403e-08
1.448291.7773753.771272e-08
1.455031.7772643.830415e-08
1.46181.7771523.889833e-08
1.468591.7770413.949527e-08
1.475431.7769294.009499e-08
1.482291.7768174.069750e-08
1.489181.7767044.130281e-08
1.496111.7765914.191094e-08
1.503071.7764774.252190e-08
1.510061.7763634.313570e-08
1.517081.7762494.375235e-08
1.524141.7761344.437187e-08
1.531231.7760194.499428e-08
1.538351.7759034.561957e-08
1.545511.7757874.624778e-08
1.55271.775674.687891e-08
1.559921.7755534.751297e-08
1.567171.7754354.814999e-08
1.574461.7753174.878996e-08
1.581791.7751984.943292e-08
1.589141.7750795.007886e-08
1.596541.7749595.072781e-08
1.61.7749035.103200e-08
1.603961.7748385.344633e-08
1.611421.7747175.799346e-08
1.618921.7745966.256174e-08
1.626451.7744746.715128e-08
1.634011.7743517.176215e-08
1.641611.7742277.639448e-08
1.649251.7741038.104835e-08
1.656921.7739788.572387e-08
1.664631.7738539.042114e-08
1.672371.7737279.514025e-08
1.680151.77369.988132e-08
1.687961.7734731.046444e-07
1.695811.7733441.094297e-07
1.70371.7732151.142372e-07
1.711631.7730861.190671e-07
1.719591.7729551.239195e-07
1.727591.7728241.287944e-07
1.735621.7726921.336920e-07
1.743691.7725591.386124e-07
1.751811.7724261.435557e-07
1.759951.7722911.485219e-07
1.768141.7721561.535113e-07
1.776361.772021.585239e-07
1.784631.7718831.635597e-07
1.792931.7717451.686190e-07
1.81.7716271.729300e-07
1.801271.7716061.752168e-07
1.809641.7714661.903455e-07
1.818061.7713262.055445e-07
1.826521.7711842.208142e-07
1.835011.7710422.361550e-07
1.843551.7708982.515671e-07
1.852121.7707542.670509e-07
1.860741.7706082.826067e-07
1.869391.7704622.982349e-07
1.878091.7703143.139358e-07
1.886821.7701663.297097e-07
1.89561.7700163.455569e-07
1.904421.7698663.614779e-07
1.913281.7697143.774730e-07
1.922181.7695613.935424e-07
1.931121.7694074.096866e-07
1.94011.7692524.259058e-07
1.949121.7690964.422005e-07
1.958191.7689384.585710e-07
1.96731.7687794.750177e-07
1.976451.768624.915408e-07
1.985641.7684585.081408e-07
1.994881.7682965.248180e-07
21.7682065.340700e-07
2.004161.7681325.560800e-07
2.013481.7679686.054600e-07
2.022841.7678016.550696e-07
2.032251.7676347.049100e-07
2.04171.7674657.549822e-07
2.05121.7672958.052874e-07
2.060741.7671238.558265e-07
2.070331.766959.066007e-07
2.079961.7667769.576110e-07
2.089631.76661.008859e-06
2.099351.7664231.060345e-06
2.109121.7662441.112070e-06
2.118931.7660641.164036e-06
2.128781.7658821.216244e-06
2.138681.7656991.268695e-06
2.148631.7655141.321389e-06
2.158621.7653281.374329e-06
2.168671.765141.427515e-06
2.178751.764951.480948e-06
2.188891.7647591.534630e-06
2.199071.7645661.588561e-06
2.21.7645481.593500e-06
2.20931.7643711.811056e-06
2.219571.7641752.051544e-06
2.22991.7639772.293150e-06
2.240271.7637772.535881e-06
2.250691.7635752.779740e-06
2.261161.7633723.024734e-06
2.271671.7631673.270867e-06
2.282241.762963.518145e-06
2.292861.7627513.766573e-06
2.303521.762544.016157e-06
2.314241.7623274.266902e-06
2.3251.7621124.518813e-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
—