Optical constants

Refractive index of H-ZK1 (CDGM)

H-ZK1: 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
1.56888
Extinction coefficient k
1.40486e-08
Permittivity ε1
2.46138
Permittivity ε2
4.40812e-08
Absorption coefficient α
0.00300443 cm⁻¹
Penetration depth δ = λ/(2πk)
6.65683e+09 nm
Abbe number Vd
62.957
Chromatic dispersion dn/dλ
-0.0468273 µm⁻¹
Group index ng
1.59639
Group velocity dispersion
79.6906 fs²/mm
Dispersion parameter D
-434.754 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-ZK1 (CDGM): H-ZK1
cdgm_h_zk1 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-ZK1", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_zk1.range_nm)  # (302, 2325) nm
eps = cdgm_h_zk1.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=1.06131555λ2λ2−0.00543666583+0.365740168λ2λ2−0.0187659148+1.03466756λ2λ2−97.5169702

Valid from 0.302 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.06131555
C30.00543666583
C40.365740168
C50.0187659148
C61.03466756
C797.5169702

Comments and conditions

Conditions

temperature
293 K

Properties

nd
1.568880
Vd
62.956990
glass code
569630
density
value: 3060
thermal expansion
value: 6.1e-06, temperature range: 243 343; value: 7.5e-06, temperature range: 293 573
dPgF
-0.0011

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-ZK1 (CDGM), H-ZK1: n and k versus wavelength
λ (µm)nk
0.3021.6087614.017960e-06
0.3035491.6081553.741466e-06
0.3051061.6075573.463554e-06
0.306671.6069683.184217e-06
0.3082431.6063862.903447e-06
0.3098241.6058122.621238e-06
0.311.6057482.589800e-06
0.3114131.6052452.432509e-06
0.313011.6046862.254706e-06
0.3146151.6041342.075990e-06
0.3162291.603591.896358e-06
0.317851.6030521.715805e-06
0.3194811.6025221.534326e-06
0.321.6023551.476500e-06
0.3211191.6019981.403756e-06
0.3227661.6014811.296702e-06
0.3244211.6009711.189098e-06
0.3260851.6004671.080943e-06
0.3277571.599979.722331e-07
0.3294381.5994798.629656e-07
0.331.5993178.264500e-07
0.3311281.5989947.853577e-07
0.3328261.5985167.234823e-07
0.3345331.5980436.612896e-07
0.3362491.5975775.987779e-07
0.3379731.5971165.359456e-07
0.3397061.5966614.727911e-07
0.341.5965854.620900e-07
0.3414481.5962124.323191e-07
0.34321.5957683.963283e-07
0.344961.595333.601529e-07
0.3467291.5948973.237919e-07
0.3485071.594472.872445e-07
0.351.5941172.565600e-07
0.3502941.5940482.533330e-07
0.3520911.5936312.336399e-07
0.3538971.5932192.138458e-07
0.3557121.5928121.939501e-07
0.3575361.592411.739525e-07
0.3593691.5920131.538522e-07
0.361.5918781.469400e-07
0.3612121.5916211.396299e-07
0.3630651.5912331.284611e-07
0.3649271.590851.172350e-07
0.3667981.5904721.059513e-07
0.368681.5900989.460981e-08
0.371.589848.664900e-08
0.370571.5897298.519128e-08
0.3724711.5893648.033423e-08
0.3743811.5890047.545228e-08
0.3763011.5886477.054528e-08
0.3782311.5882956.561312e-08
0.381.5879786.109200e-08
0.3801711.5879476.074232e-08
0.382121.5876045.674892e-08
0.384081.5872645.273504e-08
0.386051.5869284.870057e-08
0.388031.5865964.464542e-08
0.391.5862714.061000e-08
0.390021.5862684.058658e-08
0.392021.5859443.821992e-08
0.394031.5856233.584112e-08
0.3960511.5853073.345012e-08
0.3980821.5849943.104686e-08
0.41.5847032.877800e-08
0.4001241.5846842.874514e-08
0.4021761.5843782.820135e-08
0.4042391.5840762.765477e-08
0.4063121.5837772.710538e-08
0.4083961.5834812.655318e-08
0.410491.5831892.599815e-08
0.4125951.58292.544027e-08
0.4147111.5826142.487953e-08
0.4168381.5823322.431591e-08
0.4189761.5820522.374941e-08
0.421.581922.347800e-08
0.4211251.5817762.354086e-08
0.4232841.5815032.366159e-08
0.4254551.5812332.378294e-08
0.4276371.5809662.390491e-08
0.429831.5807022.402751e-08
0.4320351.5804412.415073e-08
0.434251.5801822.427459e-08
0.4364771.5799272.439908e-08
0.4387161.5796742.452421e-08
0.441.5795312.459600e-08
0.4409661.5794252.447209e-08
0.4432271.5791782.418194e-08
0.44551.5789332.389030e-08
0.4477851.5786912.359717e-08
0.4500821.5784522.330253e-08
0.452391.5782162.300638e-08
0.454711.5779822.270871e-08
0.4570421.577752.240952e-08
0.4593861.5775212.210879e-08
0.461.5774622.203000e-08
0.4617421.5772952.177882e-08
0.464111.5770712.143735e-08
0.466491.5768492.109413e-08
0.4688831.5766292.074914e-08
0.4712871.5764122.040239e-08
0.4737041.5761982.005386e-08
0.4761341.5759851.970354e-08
0.4785751.5757751.935142e-08
0.481.5756541.914600e-08
0.481031.5755671.898128e-08
0.4834971.5753611.858669e-08
0.4859761.5751571.819007e-08
0.4884691.5749561.779142e-08
0.4909741.5747561.739073e-08
0.4934921.5745591.698798e-08
0.4960231.5743631.658317e-08
0.4985671.574171.617628e-08
0.51.5740621.594700e-08
0.5011231.5739781.588415e-08
0.5036931.5737891.574039e-08
0.5062771.5736011.559588e-08
0.5088731.5734161.545064e-08
0.5114831.5732321.530465e-08
0.5141061.573051.515791e-08
0.5167431.572871.501042e-08
0.5193931.5726911.486217e-08
0.5220561.5725151.471316e-08
0.5247341.572341.456339e-08
0.5274251.5721671.441285e-08
0.530131.5719961.426153e-08
0.5328491.5718261.410945e-08
0.5355811.5716581.395658e-08
0.5383281.5714921.380292e-08
0.5410891.5713271.364848e-08
0.5438641.5711641.349325e-08
0.5466531.5710021.333722e-08
0.5494571.5708421.318039e-08
0.551.5708121.315000e-08
0.5522751.5706841.320436e-08
0.5551071.5705271.327206e-08
0.5579541.5703721.334010e-08
0.5608151.5702181.340848e-08
0.5636911.5700651.347722e-08
0.5665821.5699141.354632e-08
0.5694881.5697641.361576e-08
0.5724091.5696161.368557e-08
0.5753441.5694691.375573e-08
0.5782951.5693241.382625e-08
0.5812611.569181.389713e-08
0.5842421.5690371.396838e-08
0.5872381.5688951.403999e-08
0.590251.5687551.411197e-08
0.5932771.5686161.418432e-08
0.5963191.5684781.425703e-08
0.5993781.5683421.433013e-08
0.61.5683141.434500e-08
0.6024521.5682061.440364e-08
0.6055411.5680721.447755e-08
0.6086471.5679391.455183e-08
0.6117681.5678081.462650e-08
0.6149061.5676771.470154e-08
0.6180591.5675481.477698e-08
0.6212291.5674191.485280e-08
0.6244151.5672921.492901e-08
0.6276171.5671661.500561e-08
0.6308361.5670411.508260e-08
0.6340711.5669171.515998e-08
0.6373231.5667941.523777e-08
0.6405921.5666721.531595e-08
0.6438771.5665511.539454e-08
0.6471791.5664311.547352e-08
0.651.566331.554100e-08
0.6504981.5663121.555291e-08
0.6538341.5661941.563264e-08
0.6571871.5660771.571278e-08
0.6605581.5659611.579333e-08
0.6639451.5658451.587430e-08
0.6673511.5657311.595568e-08
0.6707731.5656181.603748e-08
0.6742131.5655051.611969e-08
0.6776711.5653941.620233e-08
0.6811461.5652831.628540e-08
0.684641.5651731.636889e-08
0.6881511.5650641.645280e-08
0.691681.5649551.653715e-08
0.6952271.5648481.662193e-08
0.6987931.5647411.670715e-08
0.71.5647051.673600e-08
0.7023761.5646351.679282e-08
0.7059791.564531.687895e-08
0.7095991.5644261.696552e-08
0.7132381.5643221.705253e-08
0.7168961.5642191.713999e-08
0.7205731.5641171.722790e-08
0.7242681.5640151.731626e-08
0.7279831.5639151.740507e-08
0.7317161.5638141.749434e-08
0.7354691.5637151.758406e-08
0.7392411.5636161.767425e-08
0.7430321.5635181.776489e-08
0.7468431.563421.785601e-08
0.7506731.5633241.794759e-08
0.7545231.5632271.803964e-08
0.7583921.5631321.813216e-08
0.7622821.5630361.822515e-08
0.7661911.5629421.831863e-08
0.770121.5628481.841258e-08
0.774071.5627551.850701e-08
0.778041.5626621.860193e-08
0.782031.5625691.869734e-08
0.7860411.5624781.879323e-08
0.7900721.5623861.888962e-08
0.7941241.5622961.898650e-08
0.7981961.5622051.908388e-08
0.81.5621661.912700e-08
0.802291.5621151.887120e-08
0.8064051.5620261.841161e-08
0.810541.5619371.794965e-08
0.8146971.5618491.748533e-08
0.8188751.5617611.701863e-08
0.8230751.5616731.654953e-08
0.8272961.5615861.607803e-08
0.8315391.56151.560411e-08
0.8358031.5614131.512776e-08
0.840091.5613271.464896e-08
0.8443981.5612421.416771e-08
0.8487291.5611571.368399e-08
0.851.5611321.354200e-08
0.8530821.5610721.359106e-08
0.8574571.5609871.366071e-08
0.8618541.5609031.373072e-08
0.8662741.5608191.380108e-08
0.8707171.5607361.387181e-08
0.8751821.5606531.394290e-08
0.8796711.560571.401436e-08
0.8841821.5604881.408618e-08
0.8887171.5604051.415837e-08
0.8932741.5603231.423093e-08
0.8978561.5602421.430386e-08
0.91.5602041.433800e-08
0.902461.560161.437722e-08
0.9070881.5600791.445099e-08
0.9117411.5599981.452514e-08
0.9164161.5599171.459968e-08
0.9211161.5598371.467459e-08
0.925841.5597571.474989e-08
0.9305881.5596771.482558e-08
0.9353611.5595971.490165e-08
0.9401581.5595171.497812e-08
0.944981.5594381.505497e-08
0.9498261.5593581.513222e-08
0.951.5593551.513500e-08
0.9546971.5592791.520978e-08
0.9595931.55921.528772e-08
0.9645151.5591211.536607e-08
0.9694611.5590421.544482e-08
0.9744331.5589641.552397e-08
0.979431.5588851.560353e-08
0.9844531.5588071.568350e-08
0.9895021.5587291.576387e-08
0.9945771.558651.584466e-08
0.9996781.5585721.592587e-08
11.5585671.593100e-08
1.00481.5584941.600755e-08
1.009961.5584161.608966e-08
1.015141.5583381.617219e-08
1.020341.558261.625514e-08
1.025581.5581821.633851e-08
1.030841.5581051.642232e-08
1.036121.5580271.650655e-08
1.041441.5579491.659122e-08
1.046781.5578711.667632e-08
1.052151.5577931.676185e-08
1.057541.5577161.684783e-08
1.061.557681.688700e-08
1.062971.5576381.693425e-08
1.068421.557561.702113e-08
1.07391.5574821.710844e-08
1.07941.5574041.719621e-08
1.084941.5573261.728443e-08
1.09051.5572481.737309e-08
1.09611.557171.746222e-08
1.101721.5570911.755180e-08
1.107371.5570131.764184e-08
1.113051.5569351.773234e-08
1.118761.5568561.782330e-08
1.124491.5567771.791474e-08
1.130261.5566981.800664e-08
1.136061.556621.809901e-08
1.141881.556541.819185e-08
1.147741.5564611.828518e-08
1.153621.5563821.837898e-08
1.159541.5563021.847326e-08
1.165491.5562221.856802e-08
1.171471.5561421.866328e-08
1.177471.5560621.875902e-08
1.183511.5559821.885525e-08
1.189581.5559011.895197e-08
1.195681.555821.904919e-08
1.21.5557631.911800e-08
1.201811.5557391.914690e-08
1.207981.5556581.924509e-08
1.214171.5555761.934377e-08
1.22041.5554951.944297e-08
1.226661.5554131.954267e-08
1.232951.555331.964289e-08
1.239271.5552471.974361e-08
1.245631.5551641.984486e-08
1.252021.5550811.994662e-08
1.258441.5549982.004891e-08
1.264891.5549142.015172e-08
1.271381.5548292.025506e-08
1.27791.5547452.035893e-08
1.284451.554662.046333e-08
1.291041.5545742.056826e-08
1.297661.5544892.067374e-08
1.304321.5544022.077975e-08
1.311011.5543162.088631e-08
1.317731.5542292.099342e-08
1.324491.5541422.110107e-08
1.331281.5540542.120928e-08
1.338111.5539652.131804e-08
1.344971.5538772.142736e-08
1.351871.5537882.153724e-08
1.35881.5536982.164769e-08
1.365771.5536082.175870e-08
1.372771.5535172.187028e-08
1.379811.5534262.198243e-08
1.386891.5533352.209515e-08
1.3941.5532432.220846e-08
1.41.5531652.230400e-08
1.401151.553152.232235e-08
1.408341.5530572.243682e-08
1.415561.5529632.255187e-08
1.422821.5528692.266752e-08
1.430121.5527742.278376e-08
1.437451.5526782.290060e-08
1.444821.5525822.301803e-08
1.452231.5524852.313607e-08
1.459681.5523882.325472e-08
1.467171.552292.337397e-08
1.474691.5521922.349383e-08
1.482251.5520922.361431e-08
1.489861.5519922.373541e-08
1.49751.5518922.385712e-08
1.505181.5517912.397946e-08
1.51291.5516892.410243e-08
1.520651.5515862.422603e-08
1.528451.5514822.435027e-08
1.536291.5513782.447514e-08
1.544171.5512732.460065e-08
1.552091.5511682.472680e-08
1.560051.5510612.485360e-08
1.568051.5509542.498105e-08
1.576091.5508462.510916e-08
1.584181.5507372.523792e-08
1.59231.5506272.536735e-08
1.61.5505232.549000e-08
1.600471.5505172.596947e-08
1.608671.5504053.440526e-08
1.616921.5502934.288431e-08
1.625221.550185.140685e-08
1.633551.5500655.997309e-08
1.641931.549956.858327e-08
1.650351.5498357.723760e-08
1.658811.5497188.593632e-08
1.667321.54969.467965e-08
1.675871.5494811.034678e-07
1.684471.5493611.123011e-07
1.693111.5492411.211796e-07
1.701791.5491191.301037e-07
1.710521.5489961.390735e-07
1.719291.5488721.480894e-07
1.728111.5487471.571515e-07
1.736971.5486211.662600e-07
1.745881.5484941.754153e-07
1.754831.5483661.846175e-07
1.763831.5482361.938669e-07
1.772881.5481062.031638e-07
1.781971.5479742.125083e-07
1.791111.5478422.219008e-07
1.81.5477122.310400e-07
1.800291.5477082.316539e-07
1.809531.5475722.509810e-07
1.818811.5474362.704072e-07
1.828131.5472982.899330e-07
1.837511.5471593.095590e-07
1.846931.5470193.292856e-07
1.856411.5468783.491134e-07
1.865931.5467353.690429e-07
1.87551.5465913.890746e-07
1.885111.5464454.092090e-07
1.894781.5462984.294467e-07
1.90451.546154.497881e-07
1.914271.5464.702339e-07
1.924081.5458494.907846e-07
1.933951.5456975.114406e-07
1.943871.5455435.322026e-07
1.953841.5453875.530711e-07
1.963861.545235.740465e-07
1.973931.5450725.951296e-07
1.984051.5449126.163208e-07
1.994231.544756.376206e-07
21.5446586.497000e-07
2.004461.5445876.958828e-07
2.014741.5444228.024030e-07
2.025071.5442559.094695e-07
2.035461.5440871.017085e-06
2.045891.5439171.125253e-06
2.056391.5437461.233975e-06
2.066931.5435731.343255e-06
2.077531.5433971.453095e-06
2.088191.5432211.563498e-06
2.09891.5430421.674468e-06
2.109661.5428621.786007e-06
2.120481.5426791.898118e-06
2.131361.5424952.010804e-06
2.142291.5423092.124068e-06
2.153271.5421212.237912e-06
2.164321.5419312.352341e-06
2.175421.5417392.467356e-06
2.186571.5415452.582961e-06
2.197791.5413492.699160e-06
2.21.541312.722100e-06
2.209061.5411512.836193e-06
2.220391.5409512.978901e-06
2.231771.5407493.122341e-06
2.243221.5405443.266516e-06
2.254721.5403383.411431e-06
2.266291.5401293.557089e-06
2.277911.5399183.703495e-06
2.289591.5397053.850651e-06
2.301331.5394893.998561e-06
2.313141.5392714.147231e-06
2.3251.5390514.296663e-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
—