Optical constants

Refractive index of D-ZK3 (CDGM)

D-ZK3: 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
1.58913
Extinction coefficient k
9.36134e-09
Permittivity ε1
2.52533
Permittivity ε2
2.97528e-08
Absorption coefficient α
0.00200201 cm⁻¹
Penetration depth δ = λ/(2πk)
9.98996e+09 nm
Abbe number Vd
61.153
Chromatic dispersion dn/dλ
-0.0499513 µm⁻¹
Group index ng
1.61848
Group velocity dispersion
84.8091 fs²/mm
Dispersion parameter D
-462.679 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

# D-ZK3 (CDGM): D-ZK3
cdgm_d_zk3 = ls.fetch_refractiveindex("specs", "CDGM-optical", "D-ZK3", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_d_zk3.range_nm)  # (302, 2325) nm
eps = cdgm_d_zk3.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=1.33936811λ2λ2−0.00760612309+0.148690268λ2λ2−0.0238444644+1.00954033λ2λ2−89.0419787

Valid from 0.302 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.33936811
C30.00760612309
C40.148690268
C50.0238444644
C61.00954033
C789.0419787

Comments and conditions

anneal rate:4°C/h

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 1.68e-06 9.68e-09 -2e-11 5.34e-07 1.41e-09 0.172
nd
1.589130
Vd
61.152901
glass code
589612
density
value: 2830
thermal expansion
value: 7.2e-06, temperature range: 243 343; value: 9.3e-06, temperature range: 293 573
dPgF
-0.0053
resistance
climatic: 4.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 1.49e-06 K⁻¹ at 633 nm, dn/dT = 9.37e-07 K⁻¹ at 1310 nm, dn/dT = 8.89e-07 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
D-ZK3 (CDGM), D-ZK3: n and k versus wavelength
λ (µm)nk
0.3021.6314165.570800e-06
0.3035491.6307775.215425e-06
0.3051061.6301464.858228e-06
0.306671.6295244.499199e-06
0.3082431.628914.138328e-06
0.3098241.6283043.775607e-06
0.311.6282373.735200e-06
0.3114131.6277063.511124e-06
0.313011.6271153.257827e-06
0.3146151.6265333.003230e-06
0.3162291.6259582.747327e-06
0.317851.625392.490113e-06
0.3194811.624832.231578e-06
0.321.6246532.149200e-06
0.3211191.6242762.044468e-06
0.3227661.623731.890338e-06
0.3244211.6231911.735418e-06
0.3260851.6226591.579703e-06
0.3277571.6221341.423189e-06
0.3294381.6216151.265873e-06
0.331.6214431.213300e-06
0.3311281.6211021.152281e-06
0.3328261.6205971.060400e-06
0.3345331.6200979.680479e-07
0.3362491.6196048.752223e-07
0.3379731.6191167.819206e-07
0.3397061.6186356.881405e-07
0.341.6185556.722500e-07
0.3414481.618166.255318e-07
0.34321.6176915.690528e-07
0.344961.6172275.122841e-07
0.3467291.6167694.552243e-07
0.3485071.6163173.978719e-07
0.351.6159433.497200e-07
0.3502941.615873.450029e-07
0.3520911.6154293.162159e-07
0.3538971.6149932.872813e-07
0.3557121.6145622.581983e-07
0.3575361.6141372.289662e-07
0.3593691.6137161.995841e-07
0.361.6135731.894800e-07
0.3612121.6133011.788551e-07
0.3630651.6128911.626218e-07
0.3649271.6124851.463053e-07
0.3667981.6120841.299050e-07
0.368681.6116881.134206e-07
0.371.6114141.018500e-07
0.370571.6112979.952524e-08
0.3724711.610919.177928e-08
0.3743811.6105288.399360e-08
0.3763011.6101517.616798e-08
0.3782311.6097786.830224e-08
0.381.6094416.109200e-08
0.3801711.6094096.074232e-08
0.382121.6090445.674892e-08
0.384081.6086845.273504e-08
0.386051.6083284.870057e-08
0.388031.6079764.464542e-08
0.391.6076314.061000e-08
0.390021.6076284.058658e-08
0.392021.6072843.821992e-08
0.394031.6069443.584112e-08
0.3960511.6066083.345012e-08
0.3980821.6062763.104686e-08
0.41.6059672.877800e-08
0.4001241.6059472.872428e-08
0.4021761.6056222.783533e-08
0.4042391.6053012.694183e-08
0.4063121.6049842.604374e-08
0.4083961.604672.514105e-08
0.410491.604362.423373e-08
0.4125951.6040532.332176e-08
0.4147111.603752.240510e-08
0.4168381.603452.148375e-08
0.4189761.6031532.055767e-08
0.421.6030122.011400e-08
0.4211251.6028591.996989e-08
0.4232841.6025691.969312e-08
0.4254551.6022821.941493e-08
0.4276371.6019991.913531e-08
0.429831.6017181.885426e-08
0.4320351.6014411.857177e-08
0.434251.6011661.828783e-08
0.4364771.6008951.800243e-08
0.4387161.6006261.771557e-08
0.441.6004741.755100e-08
0.4409661.600361.741197e-08
0.4432271.6000981.708643e-08
0.44551.5998381.675922e-08
0.4477851.5995811.643033e-08
0.4500821.5993261.609975e-08
0.452391.5990751.576748e-08
0.454711.5988261.543350e-08
0.4570421.598581.509781e-08
0.4593861.5983361.476040e-08
0.461.5982731.467200e-08
0.4617421.5980951.472757e-08
0.464111.5978571.480311e-08
0.466491.5976211.487903e-08
0.4688831.5973871.495535e-08
0.4712871.5971561.503206e-08
0.4737041.5969281.510916e-08
0.4761341.5967021.518666e-08
0.4785751.5964781.526456e-08
0.481.5963491.531000e-08
0.481031.5962561.513725e-08
0.4834971.5960371.472341e-08
0.4859761.595821.430746e-08
0.4884691.5956061.388937e-08
0.4909741.5953931.346913e-08
0.4934921.5951831.304675e-08
0.4960231.5949751.262219e-08
0.4985671.5947691.219546e-08
0.51.5946541.195500e-08
0.5011231.5945651.188326e-08
0.5036931.5943631.171916e-08
0.5062771.5941631.155421e-08
0.5088731.5939651.138841e-08
0.5114831.5937691.122177e-08
0.5141061.5935761.105427e-08
0.5167431.5933841.088591e-08
0.5193931.5931941.071669e-08
0.5220561.5930061.054660e-08
0.5247341.5928191.037564e-08
0.5274251.5926351.020381e-08
0.530131.5924521.003109e-08
0.5328491.5922729.857482e-09
0.5355811.5920939.682986e-09
0.5383281.5919159.507596e-09
0.5410891.591749.331306e-09
0.5438641.5915669.154113e-09
0.5466531.5913948.976010e-09
0.5494571.5912238.796994e-09
0.551.591198.762300e-09
0.5522751.5910548.798538e-09
0.5551071.5908878.843663e-09
0.5579541.5907218.889020e-09
0.5608151.5905578.934609e-09
0.5636911.5903948.980431e-09
0.5665821.5902339.026489e-09
0.5694881.5900749.072783e-09
0.5724091.5899159.119315e-09
0.5753441.5897599.166085e-09
0.5782951.5896049.213095e-09
0.5812611.589459.260346e-09
0.5842421.5892979.307839e-09
0.5872381.5891469.355576e-09
0.590251.5889979.403558e-09
0.5932771.5888489.451786e-09
0.5963191.5887019.500261e-09
0.5993781.5885569.548985e-09
0.61.5885269.558900e-09
0.6024521.5884129.597934e-09
0.6055411.5882689.647128e-09
0.6086471.5881279.696574e-09
0.6117681.5879869.746274e-09
0.6149061.5878479.796228e-09
0.6180591.5877099.846439e-09
0.6212291.5875729.896908e-09
0.6244151.5874369.947635e-09
0.6276171.5873019.998622e-09
0.6308361.5871681.004987e-08
0.6340711.5870351.010138e-08
0.6373231.5869041.015316e-08
0.6405921.5867741.020520e-08
0.6438771.5866451.025751e-08
0.6471791.5865171.031008e-08
0.651.5864091.035500e-08
0.6504981.586391.036294e-08
0.6538341.5862641.041612e-08
0.6571871.5861391.046957e-08
0.6605581.5860151.052329e-08
0.6639451.5858921.057729e-08
0.6673511.585771.063157e-08
0.6707731.5856491.068612e-08
0.6742131.5855291.074096e-08
0.6776711.585411.079607e-08
0.6811461.5852921.085147e-08
0.684641.5851741.090715e-08
0.6881511.5850581.096312e-08
0.691681.5849421.101938e-08
0.6952271.5848281.107592e-08
0.6987931.5847141.113276e-08
0.71.5846751.115200e-08
0.7023761.5846011.118986e-08
0.7059791.5844881.124724e-08
0.7095991.5843771.130492e-08
0.7132381.5842661.136289e-08
0.7168961.5841561.142116e-08
0.7205731.5840471.147973e-08
0.7242681.5839391.153860e-08
0.7279831.5838311.159777e-08
0.7317161.5837251.165724e-08
0.7354691.5836181.171702e-08
0.7392411.5835131.177711e-08
0.7430321.5834081.183750e-08
0.7468431.5833041.189820e-08
0.7506731.5832011.195922e-08
0.7545231.5830981.202055e-08
0.7583921.5829961.208219e-08
0.7622821.5828941.214415e-08
0.7661911.5827931.220642e-08
0.770121.5826931.226902e-08
0.774071.5825931.233194e-08
0.778041.5824941.239517e-08
0.782031.5823961.245874e-08
0.7860411.5822981.252263e-08
0.7900721.58221.258685e-08
0.7941241.5821041.265139e-08
0.7981961.5820071.271627e-08
0.81.5819651.274500e-08
0.802291.5819111.278150e-08
0.8064051.5818161.284709e-08
0.810541.5817211.291301e-08
0.8146971.5816271.297927e-08
0.8188751.5815331.304587e-08
0.8230751.581441.311281e-08
0.8272961.5813471.318010e-08
0.8315391.5812541.324773e-08
0.8358031.5811621.331571e-08
0.840091.5810711.338403e-08
0.8443981.5809791.345271e-08
0.8487291.5808891.352174e-08
0.851.5808621.354200e-08
0.8530821.5807981.359106e-08
0.8574571.5807081.366071e-08
0.8618541.5806181.373072e-08
0.8662741.5805291.380108e-08
0.8707171.580441.387181e-08
0.8751821.5803511.394290e-08
0.8796711.5802631.401436e-08
0.8841821.5801751.408618e-08
0.8887171.5800871.415837e-08
0.8932741.581.423093e-08
0.8978561.5799131.430386e-08
0.91.5798721.433800e-08
0.902461.5798261.437722e-08
0.9070881.5797391.445099e-08
0.9117411.5796531.452514e-08
0.9164161.5795671.459968e-08
0.9211161.5794811.467459e-08
0.925841.5793961.474989e-08
0.9305881.579311.482558e-08
0.9353611.5792251.490165e-08
0.9401581.579141.497812e-08
0.944981.5790561.505497e-08
0.9498261.5789711.513222e-08
0.951.5789681.513500e-08
0.9546971.5788871.520978e-08
0.9595931.5788031.528772e-08
0.9645151.5787181.536607e-08
0.9694611.5786351.544482e-08
0.9744331.5785511.552397e-08
0.979431.5784671.560353e-08
0.9844531.5783841.568350e-08
0.9895021.57831.576387e-08
0.9945771.5782171.584466e-08
0.9996781.5781341.592587e-08
11.5781281.593100e-08
1.00481.5780511.600755e-08
1.009961.5779671.608966e-08
1.015141.5778841.617219e-08
1.020341.5778011.625514e-08
1.025581.5777191.633851e-08
1.030841.5776361.642232e-08
1.036121.5775531.650655e-08
1.041441.577471.659122e-08
1.046781.5773871.667632e-08
1.052151.5773041.676185e-08
1.057541.5772211.684783e-08
1.061.5771841.688700e-08
1.062971.5771391.693425e-08
1.068421.5770561.702113e-08
1.07391.5769731.710844e-08
1.07941.576891.719621e-08
1.084941.5768071.728443e-08
1.09051.5767241.737309e-08
1.09611.576641.746222e-08
1.101721.5765571.755180e-08
1.107371.5764741.764184e-08
1.113051.576391.773234e-08
1.118761.5763071.782330e-08
1.124491.5762231.791474e-08
1.130261.5761391.800664e-08
1.136061.5760551.809901e-08
1.141881.5759711.819185e-08
1.147741.5758861.828518e-08
1.153621.5758021.837898e-08
1.159541.5757171.847326e-08
1.165491.5756321.856802e-08
1.171471.5755471.866328e-08
1.177471.5754621.875902e-08
1.183511.5753771.885525e-08
1.189581.5752911.895197e-08
1.195681.5752051.904919e-08
1.21.5751441.911800e-08
1.201811.5751192.006240e-08
1.207981.5750322.327088e-08
1.214171.5749462.649582e-08
1.22041.5748582.973729e-08
1.226661.5747713.299540e-08
1.232951.5746843.627021e-08
1.239271.5745963.956181e-08
1.245631.5745074.287030e-08
1.252021.5744194.619575e-08
1.258441.574334.953826e-08
1.264891.5742415.289791e-08
1.271381.5741515.627479e-08
1.27791.5740615.966899e-08
1.284451.5739716.308060e-08
1.291041.573886.650970e-08
1.297661.5737896.995639e-08
1.304321.5736977.342075e-08
1.311011.5736057.690289e-08
1.317731.5735138.040288e-08
1.324491.573428.392082e-08
1.331281.5733278.745680e-08
1.338111.5732339.101092e-08
1.344971.5731399.458326e-08
1.351871.5730449.817392e-08
1.35881.5729491.017830e-07
1.365771.5728531.054106e-07
1.372771.5727571.090568e-07
1.379811.572661.127217e-07
1.386891.5725631.164054e-07
1.3941.5724651.201079e-07
1.41.5723821.232300e-07
1.401151.5723661.228143e-07
1.408341.5722671.202202e-07
1.415561.5721671.176129e-07
1.422821.5720671.149922e-07
1.430121.5719661.123581e-07
1.437451.5718651.097105e-07
1.444821.5717631.070493e-07
1.452231.571661.043744e-07
1.459681.5715571.016858e-07
1.467171.5714539.898345e-08
1.474691.5713489.626722e-08
1.482251.5712429.353706e-08
1.489861.5711369.079290e-08
1.49751.5710298.803467e-08
1.505181.5709228.526229e-08
1.51291.5708138.247569e-08
1.520651.5707047.967480e-08
1.528451.5705947.685955e-08
1.536291.5704837.402986e-08
1.544171.5703727.118565e-08
1.552091.570266.832686e-08
1.560051.5701466.545341e-08
1.568051.5700326.256523e-08
1.576091.5699185.966223e-08
1.584181.5698025.674434e-08
1.59231.5696855.381148e-08
1.61.5695745.103200e-08
1.600471.5695685.162210e-08
1.608671.5694496.200434e-08
1.616921.569337.243982e-08
1.625221.569218.292882e-08
1.633551.5690889.347162e-08
1.641931.5689661.040685e-07
1.650351.5688431.147197e-07
1.658811.5687191.254255e-07
1.667321.5685931.361863e-07
1.675871.5684671.470022e-07
1.684471.568341.578736e-07
1.693111.5682111.688007e-07
1.701791.5680821.797839e-07
1.710521.5679511.908235e-07
1.719291.567822.019196e-07
1.728111.5676872.130726e-07
1.736971.5675532.242829e-07
1.745881.5674182.355506e-07
1.754831.5672812.468761e-07
1.763831.5671442.582597e-07
1.772881.5670052.697017e-07
1.781971.5668652.812024e-07
1.791111.5667242.927620e-07
1.81.5665863.040100e-07
1.800291.5665813.046632e-07
1.809531.5664373.252284e-07
1.818811.5662923.458991e-07
1.828131.5661463.666758e-07
1.837511.5659983.875590e-07
1.846931.5658494.085494e-07
1.856411.5656984.296474e-07
1.865931.5655464.508536e-07
1.87551.5653934.721685e-07
1.885111.5652384.935928e-07
1.894781.5650825.151269e-07
1.90451.5649245.367715e-07
1.914271.5647655.585271e-07
1.924081.5646045.803942e-07
1.933951.5644416.023735e-07
1.943871.5642786.244655e-07
1.953841.5641126.466709e-07
1.963861.5639456.689901e-07
1.973931.5637766.914237e-07
1.984051.5636067.139724e-07
1.994231.5634337.366368e-07
21.5633357.494900e-07
2.004461.5632598.012754e-07
2.014741.5630849.207179e-07
2.025071.5629071.040773e-06
2.035461.5627271.161444e-06
2.045891.5625461.282733e-06
2.056391.5623641.404645e-06
2.066931.5621791.527182e-06
2.077531.5619921.650347e-06
2.088191.5618041.774144e-06
2.09891.5616141.898576e-06
2.109661.5614212.023646e-06
2.120481.5612272.149358e-06
2.131361.5610312.275714e-06
2.142291.5608322.402718e-06
2.153271.5606322.530374e-06
2.164321.5604292.658684e-06
2.175421.5602242.787652e-06
2.186571.5600182.917282e-06
2.197791.5598093.047577e-06
2.21.5597673.073300e-06
2.209061.5595973.255061e-06
2.220391.5593843.482409e-06
2.231771.5591683.710924e-06
2.243221.558953.940610e-06
2.254721.5587294.171474e-06
2.266291.5585064.403523e-06
2.277911.5582814.636761e-06
2.289591.5580534.871196e-06
2.301331.5578235.106832e-06
2.313141.557595.343678e-06
2.3251.5573555.581737e-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
—