Optical constants

Refractive index of H-ZF62 (CDGM)

H-ZF62: 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
1.92285
Extinction coefficient k
8.76234e-08
Permittivity ε1
3.69736
Permittivity ε2
3.36974e-07
Absorption coefficient α
0.0187391 cm⁻¹
Penetration depth δ = λ/(2πk)
1.06729e+09 nm
Abbe number Vd
20.88
Chromatic dispersion dn/dλ
-0.218883 µm⁻¹
Group index ng
2.05147
Group velocity dispersion
470.233 fs²/mm
Dispersion parameter D
-2565.37 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-ZF62 (CDGM): H-ZF62
cdgm_h_zf62 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZF62", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zf62.range_nm)  # (404.7, 2325) nm
eps = cdgm_h_zf62.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=2.55246796λ2λ2−162.450683+0.465681607λ2λ2−0.069560081+2.0289468λ2λ2−0.014771138

Valid from 0.4047 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C22.55246796
C3162.450683
C40.465681607
C50.069560081
C62.0289468
C70.014771138

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -6.75e-06 1.69e-08 -4.1e-11 9.81e-07 1.32e-09 0.322
nd
1.922860
Vd
20.879915
glass code
923209
glass status
standard
density
value: 4010
thermal expansion
value: 6.4e-06, temperature range: 243 343; value: 7.7e-06, temperature range: 293 573
dPgF
0.0298
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -2.40e-06 K⁻¹ at 633 nm, dn/dT = -4.11e-06 K⁻¹ at 1310 nm, dn/dT = -4.21e-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-ZF62 (CDGM), H-ZF62: n and k versus wavelength
λ (µm)nk
0.40472.0092211.694770e-06
0.4064772.0074461.585027e-06
0.4082622.0057021.474801e-06
0.4100552.0039871.364091e-06
0.4118562.0023021.252896e-06
0.4136642.0006461.141212e-06
0.4154811.9990171.029037e-06
0.4173051.9974169.163699e-07
0.4191381.9958418.032080e-07
0.421.9951117.499800e-07
0.4209791.9942917.369453e-07
0.4228271.9927677.123217e-07
0.4246841.9912686.875901e-07
0.4265491.9897936.627498e-07
0.4284221.9883416.378005e-07
0.4303041.9869126.127416e-07
0.4321931.9855055.875726e-07
0.4340911.984125.622932e-07
0.4359971.9827575.369027e-07
0.4379121.9814145.114007e-07
0.4398351.9800924.857867e-07
0.441.979984.835900e-07
0.4417671.978794.720800e-07
0.4437071.9775084.594401e-07
0.4456551.9762444.467447e-07
0.4476121.9754.339936e-07
0.4495781.9737734.211864e-07
0.4515521.9725654.083231e-07
0.4535351.9713743.954032e-07
0.4555271.97023.824266e-07
0.4575271.9690433.693931e-07
0.4595361.9679033.563022e-07
0.461.9676433.532800e-07
0.4615541.9667793.476874e-07
0.4635811.965673.403937e-07
0.4656171.9645773.330680e-07
0.4676611.96353.257101e-07
0.4697151.9624373.183200e-07
0.4717781.9613893.108973e-07
0.473851.9603553.034421e-07
0.475931.9593362.959541e-07
0.478021.958332.884333e-07
0.481.9573942.813100e-07
0.480121.9573372.809988e-07
0.4822281.9563582.755159e-07
0.4843461.9553922.700090e-07
0.4864731.9544392.644778e-07
0.4886091.9534992.589224e-07
0.4907551.952572.533426e-07
0.492911.9516542.477383e-07
0.4950741.950752.421093e-07
0.4972481.9498572.364557e-07
0.4994321.9489762.307772e-07
0.51.9487492.293000e-07
0.5016251.9481062.257409e-07
0.5038281.9472472.209167e-07
0.5060411.9463992.160713e-07
0.5082631.9455622.112046e-07
0.5104951.9447352.063166e-07
0.5127361.9439192.014071e-07
0.5149881.9431121.964760e-07
0.517251.9423161.915233e-07
0.5195211.9415291.865488e-07
0.5218021.9407531.815525e-07
0.5240941.9399851.765343e-07
0.5263951.9392271.714940e-07
0.5287071.9384781.664316e-07
0.5310291.9377381.613469e-07
0.5333611.9370071.562399e-07
0.5357031.9362851.511105e-07
0.5380551.9355711.459586e-07
0.5404181.9348661.407840e-07
0.5427911.9341691.355868e-07
0.5451751.9334811.303666e-07
0.5475691.93281.251236e-07
0.5499741.9321271.198576e-07
0.551.932121.198000e-07
0.5523891.9314621.177557e-07
0.5548151.9308051.156798e-07
0.5572511.9301551.135949e-07
0.5596981.9295131.115007e-07
0.5621561.9288781.093974e-07
0.5646251.9282511.072848e-07
0.5671041.927631.051630e-07
0.5695951.9270171.030318e-07
0.5720961.926411.008913e-07
0.5746081.925819.874136e-08
0.5771311.9252179.658200e-08
0.5796661.9246319.441315e-08
0.5822111.924059.223478e-08
0.5847681.9234779.004684e-08
0.5873361.922918.784930e-08
0.5899151.9223488.564210e-08
0.5925061.9217938.342522e-08
0.5951081.9212448.119859e-08
0.5977211.9207027.896219e-08
0.61.9202357.701200e-08
0.6003461.9201647.698374e-08
0.6029821.9196337.676835e-08
0.605631.9191077.655201e-08
0.608291.9185877.633473e-08
0.6109611.9180737.611649e-08
0.6136441.9175647.589729e-08
0.6163391.917067.567713e-08
0.6190451.9165627.545600e-08
0.6217641.9160697.523390e-08
0.6244941.9155817.501082e-08
0.6272371.9150987.478677e-08
0.6299911.914627.456173e-08
0.6327581.9141477.433571e-08
0.6355361.9136797.410869e-08
0.6383271.9132167.388067e-08
0.641131.9127577.365166e-08
0.6439461.9123037.342163e-08
0.6467741.9118547.319060e-08
0.6496141.911417.295855e-08
0.651.911357.292700e-08
0.6524671.9109697.209125e-08
0.6553321.9105347.112039e-08
0.658211.9101027.014527e-08
0.66111.9096756.916587e-08
0.6640031.9092526.818217e-08
0.6669191.9088346.719414e-08
0.6698481.9084196.620178e-08
0.6727891.9080096.520506e-08
0.6757441.9076036.420397e-08
0.6787111.90726.319847e-08
0.6816921.9068026.218856e-08
0.6846851.9064076.117422e-08
0.6876921.9060166.015542e-08
0.6907121.9056295.913215e-08
0.6937451.9052465.810439e-08
0.6967921.9048675.707211e-08
0.6998521.9044915.603530e-08
0.71.9044725.598500e-08
0.7029251.9041185.584311e-08
0.7060121.9037495.569337e-08
0.7091121.9033845.554297e-08
0.7122261.9030225.539191e-08
0.7153541.9026635.524019e-08
0.7184951.9023085.508780e-08
0.721651.9019565.493474e-08
0.7248191.9016075.478101e-08
0.7280021.9012625.462661e-08
0.7311991.900925.447152e-08
0.734411.9005815.431576e-08
0.7376351.9002455.415931e-08
0.7408751.8999125.400217e-08
0.7441281.8995825.384435e-08
0.7473961.8992555.368583e-08
0.7506781.898935.352661e-08
0.7539741.8986095.336670e-08
0.7572851.8982915.320608e-08
0.7606111.8979755.304476e-08
0.7639511.8976635.288273e-08
0.7673061.8973535.271999e-08
0.7706751.8970465.255653e-08
0.774061.8967415.239236e-08
0.7774591.8964395.222746e-08
0.7808731.896145.206184e-08
0.7843021.8958435.189550e-08
0.7877461.8955495.172842e-08
0.7912061.8952575.156061e-08
0.794681.8949685.139206e-08
0.798171.8946815.122277e-08
0.81.8945325.113400e-08
0.8016751.8943975.078468e-08
0.8051961.8941155.005053e-08
0.8087311.8938354.931314e-08
0.8122831.8935584.857252e-08
0.815851.8932834.782865e-08
0.8194331.893014.708151e-08
0.8230311.892744.633109e-08
0.8266451.8924724.557737e-08
0.8302761.8922054.482035e-08
0.8339221.8919414.406000e-08
0.8375841.891684.329631e-08
0.8412621.891424.252926e-08
0.8449561.8911624.175885e-08
0.8486671.8909074.098506e-08
0.851.8908154.070700e-08
0.8523931.8906534.082160e-08
0.8561371.8904014.100082e-08
0.8598961.8901514.118083e-08
0.8636721.8899044.136164e-08
0.8674651.8896584.154323e-08
0.8712751.8894144.172563e-08
0.8751011.8891724.190882e-08
0.8789441.8889314.209282e-08
0.8828031.8886934.227762e-08
0.886681.8884564.246324e-08
0.8905741.8882214.264968e-08
0.8944851.8879884.283693e-08
0.8984131.8877564.302500e-08
0.91.8876634.310100e-08
0.9023581.8875264.249730e-08
0.9063211.8872984.148279e-08
0.9103011.8870714.046383e-08
0.9142981.8868473.944040e-08
0.9183131.8866233.841246e-08
0.9223461.8864013.738002e-08
0.9263961.8861813.634304e-08
0.9304641.8859623.530151e-08
0.934551.8857453.425540e-08
0.9386541.8855293.320470e-08
0.9427761.8853153.214939e-08
0.9469161.8851023.108944e-08
0.951.8849453.030000e-08
0.9510751.8848913.033429e-08
0.9552511.8846813.046752e-08
0.9594461.8844723.060133e-08
0.963661.8842653.073574e-08
0.9678911.8840593.087073e-08
0.9721421.8838543.100632e-08
0.9764111.8836513.114250e-08
0.9806991.8834493.127928e-08
0.9850051.8832483.141667e-08
0.9893311.8830493.155465e-08
0.9936751.882853.169324e-08
0.9980391.8826533.183244e-08
11.8825653.189500e-08
1.002421.8824573.163059e-08
1.006821.8822633.114997e-08
1.011251.8820693.066723e-08
1.015691.8818773.018237e-08
1.020151.8816852.969538e-08
1.024631.8814952.920626e-08
1.029131.8813062.871498e-08
1.033641.8811182.822155e-08
1.038181.8809312.772595e-08
1.042741.8807442.722818e-08
1.047321.8805592.672822e-08
1.051921.8803752.622606e-08
1.056541.8801922.572170e-08
1.061.8800562.534400e-08
1.061181.880012.529151e-08
1.065841.8798292.508427e-08
1.070521.8796492.487612e-08
1.075221.8794692.466705e-08
1.079941.8792912.445707e-08
1.084691.8791132.424617e-08
1.089451.8789362.403434e-08
1.094231.878762.382158e-08
1.099041.8785852.360788e-08
1.103871.8784112.339325e-08
1.108711.8782382.317768e-08
1.113581.8780652.296115e-08
1.118471.8778932.274368e-08
1.123381.8777222.252525e-08
1.128321.8775512.230587e-08
1.133271.8773822.208552e-08
1.138251.8772132.186420e-08
1.143251.8770442.164191e-08
1.148271.8768772.141864e-08
1.153311.8767092.119439e-08
1.158371.8765432.096916e-08
1.163461.8763772.074294e-08
1.168571.8762122.051573e-08
1.17371.8760482.028752e-08
1.178861.8758842.005830e-08
1.184031.875721.982808e-08
1.189231.8755571.959685e-08
1.194451.8753951.936460e-08
1.19971.8752331.913134e-08
1.21.8752241.911800e-08
1.204971.8750721.947461e-08
1.210261.8749111.985441e-08
1.215571.8747512.023587e-08
1.220911.8745912.061901e-08
1.226271.8744322.100383e-08
1.231661.8742732.139035e-08
1.237071.8741142.177856e-08
1.24251.8739562.216847e-08
1.247961.8737992.256010e-08
1.253441.8736412.295344e-08
1.258941.8734842.334852e-08
1.264471.8733282.374532e-08
1.270021.8731722.414388e-08
1.27561.8730162.454418e-08
1.28121.872862.494624e-08
1.286831.8727052.535006e-08
1.292481.872552.575566e-08
1.298151.8723952.616304e-08
1.303861.8722412.657221e-08
1.309581.8720862.698317e-08
1.315331.8719332.739594e-08
1.321111.8717792.781052e-08
1.326911.8716252.822692e-08
1.332741.8714722.864516e-08
1.338591.8713192.906522e-08
1.344471.8711662.948714e-08
1.350371.8710132.991090e-08
1.35631.870863.033653e-08
1.362261.8707083.076402e-08
1.368241.8705563.119340e-08
1.374251.8704033.162466e-08
1.380281.8702513.205781e-08
1.386341.8700993.249286e-08
1.392431.8699473.292983e-08
1.398551.8697953.336871e-08
1.41.8697593.347300e-08
1.404691.8696433.418447e-08
1.410861.8694913.512051e-08
1.417051.8693393.606067e-08
1.423281.8691873.700495e-08
1.429531.8690353.795338e-08
1.43581.8688833.890598e-08
1.442111.8687313.986275e-08
1.448441.8685794.082373e-08
1.45481.8684274.178894e-08
1.461191.8682754.275837e-08
1.467611.8681234.373207e-08
1.474051.8679714.471004e-08
1.480531.8678184.569231e-08
1.487031.8676664.667889e-08
1.493561.8675134.766980e-08
1.500121.867364.866507e-08
1.50671.8672074.966470e-08
1.513321.8670545.066873e-08
1.519971.86695.167716e-08
1.526641.8667475.269002e-08
1.533341.8665935.370733e-08
1.540081.8664395.472911e-08
1.546841.8662855.575537e-08
1.553631.866135.678614e-08
1.560461.8659755.782144e-08
1.567311.865825.886128e-08
1.574191.8656655.990570e-08
1.58111.8655096.095469e-08
1.588051.8653536.200830e-08
1.595021.8651976.306653e-08
1.61.8650856.382200e-08
1.602031.865046.507401e-08
1.609061.8648836.942200e-08
1.616131.8647257.378908e-08
1.623221.8645687.817534e-08
1.630351.8644098.258086e-08
1.637511.8642518.700573e-08
1.64471.8640929.145003e-08
1.651931.8639329.591384e-08
1.659181.8637721.003973e-07
1.666471.8636121.049004e-07
1.673781.8634511.094232e-07
1.681131.8632891.139660e-07
1.688521.8631271.185287e-07
1.695931.8629651.231114e-07
1.703381.8628021.277143e-07
1.710861.8626381.323373e-07
1.718371.8624741.369807e-07
1.725921.8623091.416444e-07
1.73351.8621441.463287e-07
1.741111.8619781.510335e-07
1.748761.8618121.557590e-07
1.756441.8616441.605052e-07
1.764151.8614771.652722e-07
1.77191.8613081.700602e-07
1.779681.8611391.748693e-07
1.787491.8609691.796994e-07
1.795341.8607981.845508e-07
1.81.8606971.874300e-07
1.803231.8606271.898547e-07
1.811141.8604551.958075e-07
1.81911.8602822.017865e-07
1.827091.8601092.077918e-07
1.835111.8599342.138234e-07
1.843171.8597592.198815e-07
1.851261.8595832.259663e-07
1.859391.8594062.320777e-07
1.867561.8592292.382160e-07
1.875761.859052.443812e-07
1.8841.8588712.505735e-07
1.892271.858692.567930e-07
1.900581.8585092.630398e-07
1.908921.8583272.693141e-07
1.917311.8581442.756159e-07
1.925731.857962.819453e-07
1.934181.8577752.883026e-07
1.942681.8575892.946878e-07
1.951211.8574023.011010e-07
1.959781.8572143.075424e-07
1.968381.8570253.140121e-07
1.977031.8568353.205101e-07
1.985711.8566443.270368e-07
1.994431.8564513.335920e-07
21.8563283.377800e-07
2.003191.8562583.432059e-07
2.011981.8560633.581806e-07
2.020821.8558683.732211e-07
2.029691.8556713.883277e-07
2.038611.8554734.035006e-07
2.047561.8552744.187402e-07
2.056551.8550734.340466e-07
2.065581.8548724.494203e-07
2.074651.8546694.648615e-07
2.083761.8544644.803705e-07
2.092911.8542594.959476e-07
2.10211.8540525.115931e-07
2.111341.8538445.273073e-07
2.120611.8536355.430905e-07
2.129921.8534245.589431e-07
2.139271.8532125.748652e-07
2.148671.8529985.908573e-07
2.15811.8527836.069196e-07
2.167581.8525676.230524e-07
2.17711.8523496.392561e-07
2.186661.852136.555309e-07
2.196261.8519096.718772e-07
2.21.8518236.782400e-07
2.205911.8516866.943114e-07
2.215591.8514627.206678e-07
2.225321.8512377.471400e-07
2.23511.851017.737283e-07
2.244911.8507818.004335e-07
2.254771.8505518.272559e-07
2.264671.8503198.541961e-07
2.274621.8500858.812546e-07
2.28461.849859.084320e-07
2.294641.8496139.357286e-07
2.304711.8493749.631452e-07
2.314831.8491349.906821e-07
2.3251.8488921.018340e-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
—