Optical constants

Refractive index of H-ZK5 (CDGM)

H-ZK5: n,k 0.302–2.325 µm

Data
formula 2 + tabulated k
Range
0.302–2.325 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.302–2.325 µm
Refractive index n
1.61117
Extinction coefficient k
2.34385e-08
Permittivity ε1
2.59586
Permittivity ε2
7.55267e-08
Absorption coefficient α
0.00501254 cm⁻¹
Penetration depth δ = λ/(2πk)
3.98999e+09 nm
Abbe number Vd
55.772
Chromatic dispersion dn/dλ
-0.0564205 µm⁻¹
Group index ng
1.64432
Group velocity dispersion
101.292 fs²/mm
Dispersion parameter D
-552.6 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-ZK5 (CDGM): H-ZK5
cdgm_h_zk5 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZK5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zk5.range_nm)  # (302, 2325) nm
eps = cdgm_h_zk5.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=0.920219055λ2λ2−109.361864+0.531425413λ2λ2−0.0198985689+1.01909144λ2λ2−0.00525819605

Valid from 0.302 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C20.920219055
C3109.361864
C40.531425413
C50.0198985689
C61.01909144
C70.00525819605

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -3.46e-06 1.21e-08 1.31e-11 5.78e-07 6.03e-10 0.17
nd
1.611170
Vd
55.772437
glass code
611558
density
value: 3580
thermal expansion
value: 8.6e-06, temperature range: 243 343; value: 9.9e-06, temperature range: 293 573
dPgF
-0.001
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -9.41e-07 K⁻¹ at 633 nm, dn/dT = -1.51e-06 K⁻¹ at 1310 nm, dn/dT = -1.55e-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 431 wavelengths, the same grid as the API and the library
H-ZK5 (CDGM), H-ZK5: n and k versus wavelength
λ (µm)nk
0.3021.6614444.843660e-06
0.3035491.660664.513887e-06
0.3051061.6598864.182423e-06
0.306671.6591243.849259e-06
0.3082431.6583723.514386e-06
0.3098241.657633.177796e-06
0.311.6575493.140300e-06
0.3114131.6568992.946007e-06
0.313011.6561782.726376e-06
0.3146151.6554672.505618e-06
0.3162291.6547652.283729e-06
0.317851.6540732.060701e-06
0.3194811.6533911.836529e-06
0.321.6531761.765100e-06
0.3211191.6527181.676620e-06
0.3227661.6520541.546407e-06
0.3244211.6513991.415527e-06
0.3260851.6507521.283975e-06
0.3277571.6501141.151749e-06
0.3294381.6494851.018845e-06
0.331.6492789.744300e-07
0.3311281.6488649.224962e-07
0.3328261.6482528.442961e-07
0.3345331.6476477.656949e-07
0.3362491.6470516.866906e-07
0.3379731.6464626.072812e-07
0.3397061.6458815.274644e-07
0.341.6457835.139400e-07
0.3414481.6453074.788763e-07
0.34321.6447414.364869e-07
0.344961.6441823.938800e-07
0.3467291.6436313.510547e-07
0.3485071.6430863.080097e-07
0.351.6426372.718700e-07
0.3502941.6425492.684593e-07
0.3520911.6420182.476452e-07
0.3538971.6414942.267243e-07
0.3557121.6409772.056961e-07
0.3575361.6404671.845601e-07
0.3593691.6399621.633157e-07
0.361.6397911.560100e-07
0.3612121.6394651.476002e-07
0.3630651.6389731.347512e-07
0.3649271.6384881.218363e-07
0.3667981.6380081.088551e-07
0.368681.6375359.580741e-08
0.371.6372088.664900e-08
0.370571.6370688.501537e-08
0.3724711.6366067.957222e-08
0.3743811.636157.410115e-08
0.3763011.63576.860202e-08
0.3782311.6352556.307470e-08
0.381.6348545.800800e-08
0.3801711.6348165.776468e-08
0.382121.6343825.498595e-08
0.384081.6339535.219297e-08
0.386051.633534.938567e-08
0.388031.6331114.656397e-08
0.391.6327024.375600e-08
0.390021.6326984.373908e-08
0.392021.632294.202929e-08
0.394031.6318864.031073e-08
0.3960511.6314883.858336e-08
0.3980821.6310943.684713e-08
0.41.6307293.520800e-08
0.4001241.6307053.517705e-08
0.4021761.6303213.466486e-08
0.4042391.6299413.415004e-08
0.4063121.6295663.363258e-08
0.4083961.6291953.311247e-08
0.410491.6288293.258970e-08
0.4125951.6284663.206424e-08
0.4147111.6281093.153608e-08
0.4168381.6277553.100522e-08
0.4189761.6274053.047164e-08
0.421.627243.021600e-08
0.4211251.627063.029691e-08
0.4232841.6267183.045230e-08
0.4254551.6263813.060850e-08
0.4276371.6260473.076549e-08
0.429831.6257183.092328e-08
0.4320351.6253923.108189e-08
0.434251.625073.124131e-08
0.4364771.6247513.140155e-08
0.4387161.6244363.156260e-08
0.441.6242583.165500e-08
0.4409661.6241253.154620e-08
0.4432271.6238173.129145e-08
0.44551.6235133.103538e-08
0.4477851.6232133.077800e-08
0.4500821.6229153.051931e-08
0.452391.6226213.025928e-08
0.454711.6223312.999792e-08
0.4570421.6220432.973522e-08
0.4593861.6217592.947118e-08
0.461.6216862.940200e-08
0.4617421.6214782.917817e-08
0.464111.6212012.887388e-08
0.466491.6209262.856802e-08
0.4688831.6206542.826060e-08
0.4712871.6203852.795160e-08
0.4737041.620122.764101e-08
0.4761341.6198572.732884e-08
0.4785751.6195972.701506e-08
0.481.6194482.683200e-08
0.481031.619342.668335e-08
0.4834971.6190862.632724e-08
0.4859761.6188352.596931e-08
0.4884691.6185862.560954e-08
0.4909741.618342.524792e-08
0.4934921.6180972.488445e-08
0.4960231.6178562.451912e-08
0.4985671.6176182.415192e-08
0.51.6174862.394500e-08
0.5011231.6173832.389993e-08
0.5036931.617152.379682e-08
0.5062771.6169192.369318e-08
0.5088731.6166912.358901e-08
0.5114831.6164662.348431e-08
0.5141061.6162422.337906e-08
0.5167431.6160222.327328e-08
0.5193931.6158032.316696e-08
0.5220561.6155872.306009e-08
0.5247341.6153732.295268e-08
0.5274251.6151622.284471e-08
0.530131.6149522.273619e-08
0.5328491.6147452.262711e-08
0.5355811.614542.251747e-08
0.5383281.6143372.240728e-08
0.5410891.6141362.229651e-08
0.5438641.6139382.218518e-08
0.5466531.6137412.207328e-08
0.5494571.6135462.196080e-08
0.551.6135092.193900e-08
0.5522751.6133542.202971e-08
0.5551071.6131632.214266e-08
0.5579541.6129742.225620e-08
0.5608151.6127872.237031e-08
0.5636911.6126022.248501e-08
0.5665821.6124192.260030e-08
0.5694881.6122382.271618e-08
0.5724091.6120592.283266e-08
0.5753441.6118812.294973e-08
0.5782951.6117052.306740e-08
0.5812611.6115312.318568e-08
0.5842421.6113592.330456e-08
0.5872381.6111882.342405e-08
0.590251.6110192.354416e-08
0.5932771.6108522.366488e-08
0.5963191.6106862.378622e-08
0.5993781.6105222.390818e-08
0.61.6104892.393300e-08
0.6024521.610362.403082e-08
0.6055411.6101992.415410e-08
0.6086471.610042.427801e-08
0.6117681.6098822.440255e-08
0.6149061.6097262.452774e-08
0.6180591.6095712.465356e-08
0.6212291.6094182.478004e-08
0.6244151.6092662.490716e-08
0.6276171.6091152.503493e-08
0.6308361.6089662.516336e-08
0.6340711.6088192.529244e-08
0.6373231.6086732.542219e-08
0.6405921.6085282.555261e-08
0.6438771.6083842.568369e-08
0.6471791.6082422.581544e-08
0.651.6081222.592800e-08
0.6504981.6081012.589212e-08
0.6538341.6079612.565178e-08
0.6571871.6078232.541022e-08
0.6605581.6076862.516742e-08
0.6639451.607552.492337e-08
0.6673511.6074162.467807e-08
0.6707731.6072822.443151e-08
0.6742131.607152.418369e-08
0.6776711.6070192.393459e-08
0.6811461.6068892.368422e-08
0.684641.606762.343257e-08
0.6881511.6066322.317962e-08
0.691681.6065062.292538e-08
0.6952271.606382.266983e-08
0.6987931.6062562.241297e-08
0.71.6062142.232600e-08
0.7023761.6061332.240181e-08
0.7059791.606012.251672e-08
0.7095991.6058892.263222e-08
0.7132381.6057692.274831e-08
0.7168961.605652.286499e-08
0.7205731.6055312.298228e-08
0.7242681.6054142.310016e-08
0.7279831.6052982.321865e-08
0.7317161.6051822.333775e-08
0.7354691.6050682.345746e-08
0.7392411.6049542.357778e-08
0.7430321.6048422.369872e-08
0.7468431.604732.382028e-08
0.7506731.6046192.394246e-08
0.7545231.6045092.406527e-08
0.7583921.60442.418871e-08
0.7622821.6042912.431278e-08
0.7661911.6041842.443749e-08
0.770121.6040772.456284e-08
0.774071.6039712.468883e-08
0.778041.6038662.481547e-08
0.782031.6037622.494276e-08
0.7860411.6036582.507070e-08
0.7900721.6035562.519929e-08
0.7941241.6034532.532855e-08
0.7981961.6033522.545847e-08
0.81.6033082.551600e-08
0.802291.6032512.527816e-08
0.8064051.6031512.485082e-08
0.810541.6030522.442129e-08
0.8146971.6029542.398956e-08
0.8188751.6028562.355561e-08
0.8230751.6027582.311944e-08
0.8272961.6026622.268103e-08
0.8315391.6025662.224037e-08
0.8358031.602472.179745e-08
0.840091.6023762.135227e-08
0.8443981.6022812.090479e-08
0.8487291.6021882.045503e-08
0.851.6021612.032300e-08
0.8530821.6020951.995414e-08
0.8574571.6020021.943045e-08
0.8618541.6019111.890407e-08
0.8662741.6018191.837499e-08
0.8707171.6017281.784320e-08
0.8751821.6016381.730869e-08
0.8796711.6015481.677143e-08
0.8841821.6014591.623141e-08
0.8887171.601371.568863e-08
0.8932741.6012821.514306e-08
0.8978561.6011941.459469e-08
0.91.6011541.433800e-08
0.902461.6011071.437722e-08
0.9070881.601021.445099e-08
0.9117411.6009341.452514e-08
0.9164161.6008481.459968e-08
0.9211161.6007621.467459e-08
0.925841.6006771.474989e-08
0.9305881.6005921.482558e-08
0.9353611.6005081.490165e-08
0.9401581.6004241.497812e-08
0.944981.600341.505497e-08
0.9498261.6002571.513222e-08
0.951.6002541.513500e-08
0.9546971.6001741.520978e-08
0.9595931.6000921.528772e-08
0.9645151.6000091.536607e-08
0.9694611.5999281.544482e-08
0.9744331.5998461.552397e-08
0.979431.5997651.560353e-08
0.9844531.5996841.568350e-08
0.9895021.5996031.576387e-08
0.9945771.5995231.584466e-08
0.9996781.5994431.592587e-08
11.5994381.593100e-08
1.00481.5993631.600755e-08
1.009961.5992831.608966e-08
1.015141.5992041.617219e-08
1.020341.5991251.625514e-08
1.025581.5990461.633851e-08
1.030841.5989671.642232e-08
1.036121.5988891.650655e-08
1.041441.5988111.659122e-08
1.046781.5987331.667632e-08
1.052151.5986551.676185e-08
1.057541.5985771.684783e-08
1.061.5985421.688700e-08
1.062971.59851.693425e-08
1.068421.5984221.702113e-08
1.07391.5983451.710844e-08
1.07941.5982681.719621e-08
1.084941.5981911.728443e-08
1.09051.5981151.737309e-08
1.09611.5980381.746222e-08
1.101721.5979611.755180e-08
1.107371.5978851.764184e-08
1.113051.5978081.773234e-08
1.118761.5977321.782330e-08
1.124491.5976561.791474e-08
1.130261.597581.800664e-08
1.136061.5975041.809901e-08
1.141881.5974281.819185e-08
1.147741.5973521.828518e-08
1.153621.5972761.837898e-08
1.159541.59721.847326e-08
1.165491.5971241.856802e-08
1.171471.5970481.866328e-08
1.177471.5969721.875902e-08
1.183511.5968961.885525e-08
1.189581.596821.895197e-08
1.195681.5967441.904919e-08
1.21.596691.911800e-08
1.201811.5966681.914690e-08
1.207981.5965921.924509e-08
1.214171.5965151.934377e-08
1.22041.5964391.944297e-08
1.226661.5963631.954267e-08
1.232951.5962871.964289e-08
1.239271.596211.974361e-08
1.245631.5961341.984486e-08
1.252021.5960571.994662e-08
1.258441.595982.004891e-08
1.264891.5959032.015172e-08
1.271381.5958262.025506e-08
1.27791.5957492.035893e-08
1.284451.5956722.046333e-08
1.291041.5955942.056826e-08
1.297661.5955172.067374e-08
1.304321.5954392.077975e-08
1.311011.5953612.088631e-08
1.317731.5952822.099342e-08
1.324491.5952042.110107e-08
1.331281.5951252.120928e-08
1.338111.5950472.131804e-08
1.344971.5949672.142736e-08
1.351871.5948882.153724e-08
1.35881.5948092.164769e-08
1.365771.5947292.175870e-08
1.372771.5946492.187028e-08
1.379811.5945682.198243e-08
1.386891.5944882.209515e-08
1.3941.5944072.220846e-08
1.41.5943392.230400e-08
1.401151.5943252.239585e-08
1.408341.5942442.296896e-08
1.415561.5941622.354500e-08
1.422821.594082.412400e-08
1.430121.5939972.470597e-08
1.437451.5939142.529092e-08
1.444821.5938312.587888e-08
1.452231.5937472.646984e-08
1.459681.5936632.706384e-08
1.467171.5935792.766089e-08
1.474691.5934942.826100e-08
1.482251.5934092.886418e-08
1.489861.5933232.947046e-08
1.49751.5932373.007985e-08
1.505181.5931513.069236e-08
1.51291.5930643.130802e-08
1.520651.5929773.192683e-08
1.528451.5928893.254881e-08
1.536291.59283.317399e-08
1.544171.5927123.380237e-08
1.552091.5926223.443397e-08
1.560051.5925323.506882e-08
1.568051.5924423.570692e-08
1.576091.5923513.634829e-08
1.584181.592263.699295e-08
1.59231.5921683.764092e-08
1.61.592083.825500e-08
1.600471.5920753.890903e-08
1.608671.5919825.041605e-08
1.616921.5918886.198209e-08
1.625221.5917947.360744e-08
1.633551.5916998.529242e-08
1.641931.5916049.703732e-08
1.650351.5915071.088425e-07
1.658811.5914111.207081e-07
1.667321.5913131.326347e-07
1.675871.5912151.446224e-07
1.684471.5911161.566715e-07
1.693111.5910171.687825e-07
1.701791.5909161.809556e-07
1.710521.5908161.931911e-07
1.719291.5907142.054894e-07
1.728111.5906122.178507e-07
1.736971.5905082.302754e-07
1.745881.5904052.427639e-07
1.754831.59032.553164e-07
1.763831.5901942.679333e-07
1.772881.5900882.806148e-07
1.781971.5899812.933615e-07
1.791111.5898733.061734e-07
1.81.5897683.186400e-07
1.800291.5897643.192962e-07
1.809531.5896553.399565e-07
1.818811.5895443.607228e-07
1.828131.5894333.815956e-07
1.837511.5893214.025754e-07
1.846931.5892084.236628e-07
1.856411.5890944.448583e-07
1.865931.5889794.661626e-07
1.87551.5888634.875761e-07
1.885111.5887465.090994e-07
1.894781.5886285.307332e-07
1.90451.5885095.524778e-07
1.914271.5883895.743340e-07
1.924081.5882685.963023e-07
1.933951.5881466.183832e-07
1.943871.5880236.405774e-07
1.953841.5878996.628854e-07
1.963861.5877746.853078e-07
1.973931.5876477.078452e-07
1.984051.587527.304982e-07
1.994231.5873917.532674e-07
21.5873187.661800e-07
2.004461.5872627.958882e-07
2.014741.5871318.644098e-07
2.025071.5869999.332828e-07
2.035461.5868661.002509e-06
2.045891.5867311.072090e-06
2.056391.5865951.142028e-06
2.066931.5864581.212325e-06
2.077531.586321.282983e-06
2.088191.586181.354002e-06
2.09891.586041.425386e-06
2.109661.5858971.497136e-06
2.120481.5857541.569254e-06
2.131361.5856091.641742e-06
2.142291.5854621.714602e-06
2.153271.5853151.787835e-06
2.164321.5851661.861444e-06
2.175421.5850151.935430e-06
2.186571.5848632.009796e-06
2.197791.5847092.084543e-06
2.21.5846792.099300e-06
2.209061.5845542.175872e-06
2.220391.5843982.271649e-06
2.231771.5842392.367917e-06
2.243221.584082.464679e-06
2.254721.5839182.561937e-06
2.266291.5837552.659694e-06
2.277911.5835912.757952e-06
2.289591.5834252.856714e-06
2.301331.5832572.955983e-06
2.313141.5830873.055761e-06
2.3251.5829163.156050e-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
—