Optical constants

Refractive index of H-ZF52 (CDGM)

H-ZF52: 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
1.84665
Extinction coefficient k
4.66640e-08
Permittivity ε1
3.41013
Permittivity ε2
1.72345e-07
Absorption coefficient α
0.00997954 cm⁻¹
Penetration depth δ = λ/(2πk)
2.00410e+09 nm
Abbe number Vd
23.784
Chromatic dispersion dn/dλ
-0.177629 µm⁻¹
Group index ng
1.95103
Group velocity dispersion
371.187 fs²/mm
Dispersion parameter D
-2025.02 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-ZF52 (CDGM): H-ZF52
cdgm_h_zf52 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZF52", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zf52.range_nm)  # (404.7, 2325) nm
eps = cdgm_h_zf52.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=0.409982615λ2λ2−0.0621421199+2.37517176λ2λ2−185.055134+1.83913582λ2λ2−0.0136093459

Valid from 0.4047 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C20.409982615
C30.0621421199
C42.37517176
C5185.055134
C61.83913582
C70.0136093459

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -6.18e-06 1.63e-08 -4.5e-11 1.12e-06 1.19e-09 0.291
nd
1.846660
Vd
23.784497
glass code
847238
glass status
standard
density
value: 3510
thermal expansion
value: 8.8e-06, temperature range: 243 343; value: 1.08e-05, temperature range: 293 573
dPgF
0.0155
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -1.71e-06 K⁻¹ at 633 nm, dn/dT = -3.44e-06 K⁻¹ at 1310 nm, dn/dT = -3.54e-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-ZF52 (CDGM), H-ZF52: n and k versus wavelength
λ (µm)nk
0.40471.9142486.633375e-07
0.4064771.9129136.289194e-07
0.4082621.9115995.943502e-07
0.4100551.9103065.596291e-07
0.4118561.9090325.247557e-07
0.4136641.9077784.897290e-07
0.4154811.9065424.545486e-07
0.4173051.9053264.192136e-07
0.4191381.9041273.837235e-07
0.421.9035713.670300e-07
0.4209791.9029473.613202e-07
0.4228271.9017833.505341e-07
0.4246841.9006373.397006e-07
0.4265491.8995083.288195e-07
0.4284221.8983953.178907e-07
0.4303041.8972983.069138e-07
0.4321931.8962172.958888e-07
0.4340911.8951512.848153e-07
0.4359971.89412.736932e-07
0.4379121.8930642.625223e-07
0.4398351.8920422.513023e-07
0.441.8919552.503400e-07
0.4417671.8910352.437931e-07
0.4437071.8900412.366036e-07
0.4456551.8890622.293825e-07
0.4476121.8880952.221297e-07
0.4495781.8871422.148450e-07
0.4515521.8862012.075284e-07
0.4535351.8852742.001796e-07
0.4555271.8843581.927985e-07
0.4575271.8834551.853851e-07
0.4595361.8825641.779390e-07
0.461.882361.762200e-07
0.4615541.8816841.734093e-07
0.4635811.8808161.697437e-07
0.4656171.879961.660621e-07
0.4676611.8791141.623642e-07
0.4697151.878281.586501e-07
0.4717781.8774561.549197e-07
0.473851.8766421.511729e-07
0.475931.8758391.474097e-07
0.478021.8750461.436299e-07
0.481.8743081.400500e-07
0.480121.8742631.398637e-07
0.4822281.873491.365809e-07
0.4843461.8727271.332837e-07
0.4864731.8719731.299721e-07
0.4886091.8712281.266459e-07
0.4907551.8704931.233050e-07
0.492911.8697671.199496e-07
0.4950741.8690491.165793e-07
0.4972481.868341.131943e-07
0.4994321.867641.097944e-07
0.51.867461.089100e-07
0.5016251.8669481.072316e-07
0.5038281.8662651.049565e-07
0.5060411.865591.026715e-07
0.5082631.8649221.003764e-07
0.5104951.8642639.807128e-08
0.5127361.8636129.575601e-08
0.5149881.8629689.343058e-08
0.517251.8623319.109493e-08
0.5195211.8617038.874903e-08
0.5218021.8610818.639282e-08
0.5240941.8604678.402627e-08
0.5263951.8598598.164932e-08
0.5287071.8592597.926194e-08
0.5310291.8586667.686407e-08
0.5333611.8580797.445568e-08
0.5357031.8574997.203670e-08
0.5380551.8569266.960711e-08
0.5404181.8563596.716684e-08
0.5427911.8557986.471586e-08
0.5451751.8552446.225412e-08
0.5475691.8546965.978156e-08
0.5499741.8541545.729815e-08
0.551.8541485.727100e-08
0.5523891.8536185.659710e-08
0.5548151.8530885.591280e-08
0.5572511.8525645.522548e-08
0.5596981.8520465.453516e-08
0.5621561.8515335.384180e-08
0.5646251.8510265.314539e-08
0.5671041.8505245.244593e-08
0.5695951.8500285.174339e-08
0.5720961.8495375.103777e-08
0.5746081.8490515.032905e-08
0.5771311.8485714.961722e-08
0.5796661.8480964.890226e-08
0.5822111.8476264.818417e-08
0.5847681.847164.746292e-08
0.5873361.84674.673850e-08
0.5899151.8462454.601090e-08
0.5925061.8457944.528011e-08
0.5951081.8453484.454610e-08
0.5977211.8449074.380888e-08
0.61.8445274.316600e-08
0.6003461.844474.322702e-08
0.6029821.8440384.369207e-08
0.605631.843614.415917e-08
0.608291.8431874.462832e-08
0.6109611.8427684.509952e-08
0.6136441.8423544.557280e-08
0.6163391.8419434.604815e-08
0.6190451.8415374.652559e-08
0.6217641.8411354.700513e-08
0.6244941.8407374.748678e-08
0.6272371.8403434.797054e-08
0.6299911.8399534.845642e-08
0.6327581.8395664.894444e-08
0.6355361.8391844.943460e-08
0.6383271.8388064.992691e-08
0.641131.8384315.042138e-08
0.6439461.838065.091803e-08
0.6467741.8376925.141686e-08
0.6496141.8373295.191787e-08
0.651.837285.198600e-08
0.6524671.8369685.190584e-08
0.6553321.8366125.181272e-08
0.658211.8362585.171919e-08
0.66111.8359095.162525e-08
0.6640031.8355625.153090e-08
0.6669191.8352195.143613e-08
0.6698481.8348795.134095e-08
0.6727891.8345435.124535e-08
0.6757441.8342095.114933e-08
0.6787111.8338795.105288e-08
0.6816921.8335525.095602e-08
0.6846851.8332285.085873e-08
0.6876921.8329075.076101e-08
0.6907121.8325895.066286e-08
0.6937451.8322745.056428e-08
0.6967921.8319625.046527e-08
0.6998521.8316535.036582e-08
0.71.8316385.036100e-08
0.7029251.8313475.000858e-08
0.7060121.8310434.963665e-08
0.7091121.8307434.926309e-08
0.7122261.8304454.888788e-08
0.7153541.830154.851103e-08
0.7184951.8298574.813252e-08
0.721651.8295674.775235e-08
0.7248191.829284.737051e-08
0.7280021.8289954.698700e-08
0.7311991.8287134.660180e-08
0.734411.8284344.621491e-08
0.7376351.8281574.582632e-08
0.7408751.8278824.543602e-08
0.7441281.827614.504401e-08
0.7473961.827344.465028e-08
0.7506781.8270734.425482e-08
0.7539741.8268074.385762e-08
0.7572851.8265454.345868e-08
0.7606111.8262844.305798e-08
0.7639511.8260264.265553e-08
0.7673061.825774.225131e-08
0.7706751.8255164.184531e-08
0.774061.8252644.143753e-08
0.7774591.8250144.102796e-08
0.7808731.8247674.061660e-08
0.7843021.8245224.020342e-08
0.7877461.8242783.978843e-08
0.7912061.8240373.937162e-08
0.794681.8237983.895298e-08
0.798171.823563.853250e-08
0.81.8234373.831200e-08
0.8016751.8233253.770935e-08
0.8051961.8230923.644275e-08
0.8087311.822863.517060e-08
0.8122831.822633.389285e-08
0.815851.8224033.260950e-08
0.8194331.8221773.132051e-08
0.8230311.8219523.002586e-08
0.8266451.821732.872552e-08
0.8302761.8215092.741948e-08
0.8339221.8212912.610770e-08
0.8375841.8210732.479016e-08
0.8412621.8208582.346683e-08
0.8449561.8206442.213769e-08
0.8486671.8204322.080271e-08
0.851.8203562.032300e-08
0.8523931.8202222.038020e-08
0.8561371.8200132.046967e-08
0.8598961.8198052.055952e-08
0.8636721.81962.064977e-08
0.8674651.8193952.074042e-08
0.8712751.8191932.083146e-08
0.8751011.8189922.092291e-08
0.8789441.8187922.101475e-08
0.8828031.8185942.110700e-08
0.886681.8183972.119965e-08
0.8905741.8182022.129271e-08
0.8944851.8180082.138618e-08
0.8984131.8178152.148006e-08
0.91.8177382.151800e-08
0.9023581.8176242.157440e-08
0.9063211.8174342.166919e-08
0.9103011.8172462.176439e-08
0.9142981.8170592.186001e-08
0.9183131.8168732.195605e-08
0.9223461.8166882.205251e-08
0.9263961.8165052.214940e-08
0.9304641.8163232.224671e-08
0.934551.8161422.234445e-08
0.9386541.8159622.244261e-08
0.9427761.8157842.254121e-08
0.9469161.8156072.264024e-08
0.951.8154762.271400e-08
0.9510751.8154312.273969e-08
0.9552511.8152562.283951e-08
0.9594461.8150822.293976e-08
0.963661.8149092.304046e-08
0.9678911.8147382.314160e-08
0.9721421.8145672.324319e-08
0.9764111.8143982.334522e-08
0.9806991.8142292.344770e-08
0.9850051.8140622.355062e-08
0.9893311.8138952.365400e-08
0.9936751.813732.375784e-08
0.9980391.8135662.386213e-08
11.8134922.390900e-08
1.002421.8134022.396692e-08
1.006821.813242.407220e-08
1.011251.8130782.417794e-08
1.015691.8129172.428415e-08
1.020151.8127582.439083e-08
1.024631.8125992.449797e-08
1.029131.8124412.460558e-08
1.033641.8122842.471367e-08
1.038181.8121282.482223e-08
1.042741.8119722.493127e-08
1.047321.8118182.504079e-08
1.051921.8116642.515078e-08
1.056541.8115112.526126e-08
1.061.8113972.534400e-08
1.061181.8113592.529151e-08
1.065841.8112072.508427e-08
1.070521.8110572.487612e-08
1.075221.8109072.466705e-08
1.079941.8107582.445707e-08
1.084691.8106092.424617e-08
1.089451.8104612.403434e-08
1.094231.8103142.382158e-08
1.099041.8101682.360788e-08
1.103871.8100222.339325e-08
1.108711.8098772.317768e-08
1.113581.8097332.296115e-08
1.118471.8095892.274368e-08
1.123381.8094452.252525e-08
1.128321.8093032.230587e-08
1.133271.8091612.208552e-08
1.138251.8090192.186420e-08
1.143251.8088782.164191e-08
1.148271.8087382.141864e-08
1.153311.8085982.119439e-08
1.158371.8084592.096916e-08
1.163461.808322.074294e-08
1.168571.8081822.051573e-08
1.17371.8080442.028752e-08
1.178861.8079072.005830e-08
1.184031.807771.982808e-08
1.189231.8076331.959685e-08
1.194451.8074971.936460e-08
1.19971.8073621.913134e-08
1.21.8073541.911800e-08
1.204971.8072272.003036e-08
1.210261.8070922.100204e-08
1.215571.8069582.197798e-08
1.220911.8068242.295821e-08
1.226271.806692.394274e-08
1.231661.8065572.493160e-08
1.237071.8064242.592480e-08
1.24251.8062922.692236e-08
1.247961.8061592.792430e-08
1.253441.8060272.893064e-08
1.258941.8058962.994140e-08
1.264471.8057643.095660e-08
1.270021.8056333.197626e-08
1.27561.8055033.300039e-08
1.28121.8053723.402903e-08
1.286831.8052423.506218e-08
1.292481.8051123.609986e-08
1.298151.8049823.714211e-08
1.303861.8048533.818893e-08
1.309581.8047233.924034e-08
1.315331.8045944.029638e-08
1.321111.8044654.135705e-08
1.326911.8043364.242238e-08
1.332741.8042074.349239e-08
1.338591.8040794.456709e-08
1.344471.8039514.564652e-08
1.350371.8038224.673069e-08
1.35631.8036944.781962e-08
1.362261.8035664.891332e-08
1.368241.8034385.001184e-08
1.374251.803315.111517e-08
1.380281.8031825.222336e-08
1.386341.8030555.333640e-08
1.392431.8029275.445434e-08
1.398551.8027995.557718e-08
1.41.8027695.584400e-08
1.404691.8026725.693236e-08
1.410861.8025445.836426e-08
1.417051.8024165.980245e-08
1.423281.8022896.124696e-08
1.429531.8021616.269781e-08
1.43581.8020346.415503e-08
1.442111.8019066.561865e-08
1.448441.8017786.708869e-08
1.45481.801656.856520e-08
1.461191.8015237.004818e-08
1.467611.8013957.153768e-08
1.474051.8012677.303372e-08
1.480531.8011387.453633e-08
1.487031.801017.604554e-08
1.493561.8008827.756138e-08
1.500121.8007537.908387e-08
1.50671.8006258.061305e-08
1.513321.8004968.214894e-08
1.519971.8003678.369158e-08
1.526641.8002388.524100e-08
1.533341.8001098.679721e-08
1.540081.7999798.836026e-08
1.546841.7998498.993018e-08
1.553631.799729.150699e-08
1.560461.7995899.309072e-08
1.567311.7994599.468141e-08
1.574191.7993289.627908e-08
1.58111.7991979.788377e-08
1.588051.7990669.949551e-08
1.595021.7989351.011143e-07
1.61.7988411.022700e-07
1.602031.7988031.043134e-07
1.609061.7986711.114097e-07
1.616131.7985381.185372e-07
1.623221.7984061.256960e-07
1.630351.7982731.328862e-07
1.637511.7981391.401080e-07
1.64471.7980061.473616e-07
1.651931.7978711.546469e-07
1.659181.7977371.619643e-07
1.666471.7976021.693138e-07
1.673781.7974671.766956e-07
1.681131.7973311.841097e-07
1.688521.7971951.915565e-07
1.695931.7970581.990359e-07
1.703381.7969212.065482e-07
1.710861.7967832.140935e-07
1.718371.7966452.216719e-07
1.725921.7965072.292836e-07
1.73351.7963682.369287e-07
1.741111.7962282.446074e-07
1.748761.7960882.523199e-07
1.756441.7959482.600661e-07
1.764151.7958062.678464e-07
1.77191.7956652.756609e-07
1.779681.7955222.835097e-07
1.787491.795382.913929e-07
1.795341.7952362.993108e-07
1.81.7951513.040100e-07
1.803231.7950923.079858e-07
1.811141.7949473.177467e-07
1.81911.7948023.275505e-07
1.827091.7946563.373974e-07
1.835111.7945093.472875e-07
1.843171.7943623.572210e-07
1.851261.7942143.671982e-07
1.859391.7940653.772192e-07
1.867561.7939163.872841e-07
1.875761.7937663.973933e-07
1.8841.7936154.075469e-07
1.892271.7934644.177450e-07
1.900581.7933114.279880e-07
1.908921.7931584.382759e-07
1.917311.7930044.486090e-07
1.925731.7928494.589875e-07
1.934181.7926944.694115e-07
1.942681.7925384.798814e-07
1.951211.792384.903972e-07
1.959781.7922225.009592e-07
1.968381.7920635.115675e-07
1.977031.7919045.222225e-07
1.985711.7917435.329242e-07
1.994431.7915815.436730e-07
21.7914785.505400e-07
2.003191.7914195.593270e-07
2.011981.7912555.835779e-07
2.020821.7910916.079354e-07
2.029691.7909256.323998e-07
2.038611.7907596.569717e-07
2.047561.7905926.816514e-07
2.056551.7904237.064396e-07
2.065581.7902547.313366e-07
2.074651.7900837.563429e-07
2.083761.7899127.814590e-07
2.092911.7897398.066854e-07
2.10211.7895668.320227e-07
2.111341.7893918.574711e-07
2.120611.7892158.830314e-07
2.129921.7890389.087038e-07
2.139271.788869.344891e-07
2.148671.788689.603875e-07
2.15811.78859.863997e-07
2.167581.7883181.012526e-06
2.17711.7881351.038767e-06
2.186661.7879511.065124e-06
2.196261.7877661.091596e-06
2.21.7876931.101900e-06
2.205911.7875791.135088e-06
2.215591.7873911.189514e-06
2.225321.7872021.244180e-06
2.23511.7870111.299085e-06
2.244911.7868191.354232e-06
2.254771.7866261.409620e-06
2.264671.7864311.465252e-06
2.274621.7862351.521129e-06
2.28461.7860381.577250e-06
2.294641.7858391.633619e-06
2.304711.7856391.690234e-06
2.314831.7854371.747099e-06
2.3251.7852341.804213e-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
—