Optical constants

Refractive index of H-QF6A (CDGM)

H-QF6A: n,k 0.365–2.325 µm

Data
formula 2 + tabulated k
Range
0.365–2.325 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–2.325 µm
Refractive index n
1.53172
Extinction coefficient k
2.23480e-08
Permittivity ε1
2.34616
Permittivity ε2
6.84618e-08
Absorption coefficient α
0.00477933 cm⁻¹
Penetration depth δ = λ/(2πk)
4.18468e+09 nm
Abbe number Vd
48.84
Chromatic dispersion dn/dλ
-0.0556812 µm⁻¹
Group index ng
1.56444
Group velocity dispersion
102.441 fs²/mm
Dispersion parameter D
-558.87 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-QF6A (CDGM): H-QF6A
cdgm_h_qf6a = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-QF6A", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_qf6a.range_nm)  # (365, 2325) nm
eps = cdgm_h_qf6a.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=0.0830014908λ2λ2−0.0493974056+1.22223237λ2λ2−0.00830688707+1.01475439λ2λ2−114.773547

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C20.0830014908
C30.0493974056
C41.22223237
C50.00830688707
C61.01475439
C7114.773547

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -5.28e-06 2.18e-08 -9.29e-11 4.95e-07 4.67e-10 0.262
nd
1.531720
Vd
48.839833
glass code
532488
density
value: 2520
thermal expansion
value: 8.6e-06, temperature range: 243 343; value: 9.5e-06, temperature range: 293 573
dPgF
0.0037
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -1.66e-06 K⁻¹ at 633 nm, dn/dT = -2.13e-06 K⁻¹ at 1310 nm, dn/dT = -2.16e-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 425 wavelengths, the same grid as the API and the library
H-QF6A (CDGM), H-QF6A: n and k versus wavelength
λ (µm)nk
0.3651.5602063.633400e-07
0.3666981.5597173.007649e-07
0.3684031.5592352.378987e-07
0.371.5587921.790500e-07
0.3701171.558761.779605e-07
0.3718381.5582921.619206e-07
0.3735681.557831.458061e-07
0.3753061.5573751.296167e-07
0.3770511.5569261.133519e-07
0.3788051.5564839.701148e-08
0.381.5561868.587800e-08
0.3805671.5560478.402586e-08
0.3823371.5556167.824369e-08
0.3841161.5551917.243463e-08
0.3859021.5547726.659854e-08
0.3876971.5543596.073531e-08
0.38951.5539515.484480e-08
0.391.5538395.321300e-08
0.3913121.5535495.042838e-08
0.3931321.5531524.656572e-08
0.3949611.552764.268509e-08
0.3967981.5523733.878641e-08
0.3986441.5519913.486960e-08
0.41.5517153.199100e-08
0.4004981.5516143.194682e-08
0.4023611.5512423.178149e-08
0.4042321.5508753.161540e-08
0.4061121.5505123.144853e-08
0.4080011.5501543.128088e-08
0.4098991.5498013.111246e-08
0.4118061.5494513.094325e-08
0.4137211.5491073.077325e-08
0.4156451.5487663.060246e-08
0.4175791.548433.043088e-08
0.4195211.5480983.025851e-08
0.421.5480173.021600e-08
0.4214721.547773.032194e-08
0.4234331.5474463.046299e-08
0.4254021.5471253.060470e-08
0.4273811.5468093.074706e-08
0.4293691.5464973.089009e-08
0.4313661.5461883.103379e-08
0.4333721.5458833.117815e-08
0.4353881.5455813.132318e-08
0.4374131.5452833.146889e-08
0.4394481.5449893.161528e-08
0.441.544913.165500e-08
0.4414921.5446983.093701e-08
0.4435451.544412.994875e-08
0.4456091.5441262.895589e-08
0.4476811.5438452.795842e-08
0.4497641.5435672.695631e-08
0.4518561.5432932.594953e-08
0.4539571.5430212.493807e-08
0.4560691.5427532.392191e-08
0.458191.5424872.290102e-08
0.461.5422642.203000e-08
0.4603211.5422252.204537e-08
0.4624621.5419662.214782e-08
0.4646131.5417092.225075e-08
0.4667751.5414562.235416e-08
0.4689461.5412052.245805e-08
0.4711271.5409572.256242e-08
0.4733181.5407122.266728e-08
0.475521.5404692.277262e-08
0.4777321.5402292.287846e-08
0.4799541.5399922.298478e-08
0.481.5399872.298700e-08
0.4821861.5397572.309171e-08
0.4844291.5395252.319914e-08
0.4866821.5392952.330707e-08
0.4889461.5390682.341551e-08
0.491221.5388432.352444e-08
0.4935051.5386212.363389e-08
0.49581.5384012.374384e-08
0.4981071.5381832.385430e-08
0.51.5380072.394500e-08
0.5004231.5379682.389078e-08
0.5027511.5377552.359271e-08
0.5050891.5375442.329324e-08
0.5074391.5373352.299239e-08
0.5097991.5371292.269013e-08
0.512171.5369242.238647e-08
0.5145531.5367222.208139e-08
0.5169461.5365222.177490e-08
0.519351.5363242.146698e-08
0.5217661.5361282.115763e-08
0.5241931.5359342.084684e-08
0.5266311.5357412.053461e-08
0.5290811.5355512.022092e-08
0.5315421.5353631.990577e-08
0.5340141.5351771.958916e-08
0.5364981.5349921.927108e-08
0.5389931.534811.895151e-08
0.54151.5346291.863046e-08
0.5440191.534451.830792e-08
0.5465491.5342721.798387e-08
0.5490921.5340971.765832e-08
0.551.5340351.754200e-08
0.5516461.5339231.775235e-08
0.5542121.5337511.808032e-08
0.5567891.5335811.840982e-08
0.5593791.5334121.874085e-08
0.5619811.5332451.907342e-08
0.5645951.5330791.940754e-08
0.5672211.5329151.974321e-08
0.5698591.5327532.008044e-08
0.572511.5325922.041924e-08
0.5751731.5324332.075961e-08
0.5778481.5322752.110157e-08
0.5805361.5321182.144512e-08
0.5832361.5319642.179027e-08
0.5859491.531812.213703e-08
0.5886751.5316582.248539e-08
0.5914131.5315082.283538e-08
0.5941641.5313582.318699e-08
0.5969271.5312112.354024e-08
0.5997041.5310642.389514e-08
0.61.5310492.393300e-08
0.6024931.5309192.455141e-08
0.6052961.5307752.524652e-08
0.6081111.5306332.594485e-08
0.610941.5304922.664644e-08
0.6137811.5303522.735129e-08
0.6166361.5302132.805942e-08
0.6195041.5300752.877084e-08
0.6223861.5299392.948558e-08
0.6252811.5298043.020363e-08
0.6281891.529673.092503e-08
0.6311111.5295373.164978e-08
0.6340471.5294063.237790e-08
0.6369961.5292763.310941e-08
0.6399591.5291463.384433e-08
0.6429351.5290183.458266e-08
0.6459261.5288913.532442e-08
0.648931.5287653.606964e-08
0.651.528723.633500e-08
0.6519491.528643.622541e-08
0.6549811.5285163.605487e-08
0.6580281.5283933.588353e-08
0.6610881.5282713.571140e-08
0.6641631.5281513.553846e-08
0.6672521.5280313.536473e-08
0.6703561.5279123.519018e-08
0.6734741.5277943.501482e-08
0.6766071.5276773.483864e-08
0.6797541.5275613.466165e-08
0.6829151.5274463.448383e-08
0.6860921.5273323.430519e-08
0.6892831.5272193.412571e-08
0.6924891.5271063.394540e-08
0.695711.5269953.376425e-08
0.6989461.5268843.358226e-08
0.71.5268483.352300e-08
0.7021971.5267743.348758e-08
0.7054631.5266663.343493e-08
0.7087451.5265573.338203e-08
0.7120411.526453.332889e-08
0.7153531.5263443.327550e-08
0.7186811.5262383.322187e-08
0.7220231.5261333.316798e-08
0.7253821.5260293.311384e-08
0.7287561.5259263.305946e-08
0.7321461.5258233.300481e-08
0.7355511.5257213.294992e-08
0.7389721.525623.289477e-08
0.7424091.525523.283936e-08
0.7458631.525423.278369e-08
0.7493321.5253213.272777e-08
0.7528171.5252233.267159e-08
0.7563191.5251253.261514e-08
0.7598371.5250283.255843e-08
0.7633711.5249323.250146e-08
0.7669221.5248363.244422e-08
0.7704891.5247413.238672e-08
0.7740731.5246473.232895e-08
0.7776731.5245533.227091e-08
0.781291.524463.221260e-08
0.7849241.5243683.215402e-08
0.7885751.5242763.209516e-08
0.7922431.5241843.203604e-08
0.7959281.5240933.197664e-08
0.799631.5240033.191696e-08
0.81.5239943.191100e-08
0.803351.5239133.068035e-08
0.8070861.5238242.930759e-08
0.810841.5237362.792843e-08
0.8146121.5236482.654286e-08
0.8184011.523562.515085e-08
0.8222081.5234732.375236e-08
0.8260321.5233862.234737e-08
0.8298741.52332.093584e-08
0.8337341.5232151.951775e-08
0.8376121.523131.809306e-08
0.8415081.5230451.666174e-08
0.8454221.5229611.522377e-08
0.8493551.5228771.377910e-08
0.851.5228631.354200e-08
0.8533051.5227941.359462e-08
0.8572741.5227111.365781e-08
0.8612621.5226281.372129e-08
0.8652681.5225461.378506e-08
0.8692921.5224651.384913e-08
0.8733361.5223831.391350e-08
0.8773981.5223031.397817e-08
0.8814791.5222221.404315e-08
0.8855791.5221421.410842e-08
0.8896981.5220621.417399e-08
0.8938361.5219831.423988e-08
0.8979941.5219041.430606e-08
0.91.5218661.433800e-08
0.9021711.5218251.437260e-08
0.9063671.5217471.443949e-08
0.9105831.5216691.450669e-08
0.9148181.5215911.457420e-08
0.9190731.5215141.464203e-08
0.9233481.5214371.471017e-08
0.9276431.521361.477863e-08
0.9319581.5212841.484741e-08
0.9362931.5212071.491651e-08
0.9406481.5211321.498593e-08
0.9450231.5210561.505567e-08
0.9494191.5209811.512573e-08
0.951.5209711.513500e-08
0.9538351.5209051.519605e-08
0.9582711.5208311.526668e-08
0.9627291.5207561.533764e-08
0.9672071.5206821.540893e-08
0.9717051.5206071.548055e-08
0.9762251.5205331.555250e-08
0.9807661.520461.562479e-08
0.9853281.5203861.569742e-08
0.9899111.5203131.577038e-08
0.9945151.520241.584368e-08
0.9991411.5201671.591732e-08
11.5201531.593100e-08
1.003791.5200941.599136e-08
1.008461.5200211.606575e-08
1.013151.5199491.614049e-08
1.017861.5198771.621558e-08
1.022591.5198041.629101e-08
1.027351.5197321.636680e-08
1.032131.5196611.644293e-08
1.036931.5195891.651943e-08
1.041751.5195171.659628e-08
1.04661.5194461.667348e-08
1.051471.5193741.675105e-08
1.056361.5193031.682897e-08
1.061.519251.688700e-08
1.061271.5192321.690726e-08
1.066211.5191611.698593e-08
1.071171.519091.706496e-08
1.076151.5190191.714435e-08
1.081151.5189481.722412e-08
1.086181.5188771.730426e-08
1.091241.5188071.738477e-08
1.096311.5187361.746565e-08
1.101411.5186651.754691e-08
1.106531.5185951.762855e-08
1.111681.5185241.771057e-08
1.116851.5184531.779297e-08
1.122051.5183831.787576e-08
1.127271.5183121.795892e-08
1.132511.5182421.804248e-08
1.137781.5181711.812642e-08
1.143071.5181011.821076e-08
1.148391.518031.829549e-08
1.153731.517961.838061e-08
1.159091.5178891.846612e-08
1.164481.5178181.855204e-08
1.16991.5177481.863835e-08
1.175341.5176771.872507e-08
1.180811.5176061.881219e-08
1.18631.5175351.889971e-08
1.191821.5174641.898764e-08
1.197361.5173931.907598e-08
1.21.517361.911800e-08
1.202931.5173222.114084e-08
1.208531.5172512.500021e-08
1.214151.517182.887753e-08
1.21981.5171083.277289e-08
1.225471.5170373.668636e-08
1.231171.5169654.061804e-08
1.23691.5168944.456801e-08
1.242651.5168224.853635e-08
1.248431.516755.252314e-08
1.254241.5166785.652848e-08
1.260071.5166056.055245e-08
1.265931.5165336.459514e-08
1.271821.516466.865663e-08
1.277741.5163887.273701e-08
1.283681.5163157.683638e-08
1.289651.5162428.095480e-08
1.295651.5161688.509239e-08
1.301671.5160958.924922e-08
1.307731.5160219.342539e-08
1.313811.5159479.762098e-08
1.319921.5158731.018361e-07
1.326061.5157991.060708e-07
1.332231.5157241.103252e-07
1.338431.5156491.145994e-07
1.344651.5155741.188935e-07
1.350911.5154991.232075e-07
1.357191.5154231.275416e-07
1.36351.5153471.318959e-07
1.369851.5152711.362704e-07
1.376221.5151951.406653e-07
1.382621.5151181.450806e-07
1.389051.5150411.495165e-07
1.395511.5149641.539730e-07
1.41.514911.570700e-07
1.4021.5148861.569075e-07
1.408521.5148081.563780e-07
1.415071.514731.558460e-07
1.421661.5146511.553116e-07
1.428271.5145721.547746e-07
1.434911.5144931.542352e-07
1.441591.5144131.536932e-07
1.448291.5143331.531488e-07
1.455031.5142531.526018e-07
1.46181.5141721.520522e-07
1.468591.5140911.515001e-07
1.475431.5140091.509454e-07
1.482291.5139271.503882e-07
1.489181.5138451.498283e-07
1.496111.5137621.492659e-07
1.503071.5136791.487008e-07
1.510061.5135951.481331e-07
1.517081.5135111.475628e-07
1.524141.5134271.469898e-07
1.531231.5133421.464142e-07
1.538351.5132561.458359e-07
1.545511.513171.452548e-07
1.55271.5130841.446711e-07
1.559921.5129971.440847e-07
1.567171.512911.434955e-07
1.574461.5128221.429036e-07
1.581791.5127331.423090e-07
1.589141.5126441.417115e-07
1.596541.5125551.411113e-07
1.61.5125131.408300e-07
1.603961.5124651.434828e-07
1.611421.5123741.484792e-07
1.618921.5122831.534987e-07
1.626451.5121921.585417e-07
1.634011.5120991.636080e-07
1.641611.5120061.686980e-07
1.649251.5119131.738116e-07
1.656921.5118191.789490e-07
1.664631.5117241.841103e-07
1.672371.5116291.892956e-07
1.680151.5115331.945050e-07
1.687961.5114361.997387e-07
1.695811.5113392.049967e-07
1.70371.5112412.102791e-07
1.711631.5111432.155861e-07
1.719591.5110432.209179e-07
1.727591.5109432.262744e-07
1.735621.5108432.316558e-07
1.743691.5107412.370622e-07
1.751811.5106392.424938e-07
1.759951.5105372.479507e-07
1.768141.5104332.534330e-07
1.776361.5103292.589407e-07
1.784631.5102242.644741e-07
1.792931.5101182.700332e-07
1.81.5100272.747700e-07
1.801271.5100112.757886e-07
1.809641.5099042.825273e-07
1.818061.5097952.892972e-07
1.826521.5096862.960987e-07
1.835011.5095763.029319e-07
1.843551.5094663.097968e-07
1.852121.5093543.166936e-07
1.860741.5092423.236225e-07
1.869391.5091283.305837e-07
1.878091.5090143.375772e-07
1.886821.5088993.446032e-07
1.89561.5087833.516620e-07
1.904421.5086663.587535e-07
1.913281.5085483.658781e-07
1.922181.5084293.730358e-07
1.931121.508313.802268e-07
1.94011.5081893.874512e-07
1.949121.5080673.947092e-07
1.958191.5079444.020010e-07
1.96731.5078214.093267e-07
1.976451.5076964.166865e-07
1.985641.507574.240805e-07
1.994881.5074434.315090e-07
21.5073734.356300e-07
2.004161.5073154.677397e-07
2.013481.5071865.397786e-07
2.022841.5070566.121526e-07
2.032251.5069256.848633e-07
2.04171.5067937.579121e-07
2.05121.506668.313007e-07
2.060741.5065259.050307e-07
2.070331.5063899.791036e-07
2.079961.5062521.053521e-06
2.089631.5061141.128285e-06
2.099351.5059751.203396e-06
2.109121.5058341.278857e-06
2.118931.5056931.354668e-06
2.128781.505551.430833e-06
2.138681.5054051.507351e-06
2.148631.505261.584226e-06
2.158621.5051131.661458e-06
2.168671.5049651.739049e-06
2.178751.5048151.817001e-06
2.188891.5046641.895316e-06
2.199071.5045121.973995e-06
2.21.5044981.981200e-06
2.20931.5043591.994559e-06
2.219571.5042042.009326e-06
2.22991.5040472.024161e-06
2.240271.5038892.039066e-06
2.250691.503732.054040e-06
2.261161.5035692.069083e-06
2.271671.5034072.084197e-06
2.282241.5032432.099380e-06
2.292861.5030782.114635e-06
2.303521.5029112.129960e-06
2.314241.5027432.145357e-06
2.3251.5025732.160825e-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
—