Optical constants

Refractive index of H-QF50A (CDGM)

H-QF50A: 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
1.58144
Extinction coefficient k
1.40486e-08
Permittivity ε1
2.50094
Permittivity ε2
4.44341e-08
Absorption coefficient α
0.00300443 cm⁻¹
Penetration depth δ = λ/(2πk)
6.65683e+09 nm
Abbe number Vd
40.746
Chromatic dispersion dn/dλ
-0.0725875 µm⁻¹
Group index ng
1.62409
Group velocity dispersion
137.951 fs²/mm
Dispersion parameter D
-752.596 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-QF50A (CDGM): H-QF50A
cdgm_h_qf50a = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-QF50A", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_qf50a.range_nm)  # (365, 2325) nm
eps = cdgm_h_qf50a.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=0.113568363λ2λ2−0.0529496322+1.07619407λ2λ2−114.277366+1.33131033λ2λ2−0.00976687365

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C20.113568363
C30.0529496322
C41.07619407
C5114.277366
C61.33131033
C70.00976687365

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -1.15e-06 1.62e-08 -5.36e-11 7.72e-07 8.65e-10 0.235
nd
1.581440
Vd
40.746424
glass code
581408
density
value: 2610
thermal expansion
value: 8.5e-06, temperature range: 243 343; value: 1.04e-05, temperature range: 293 573
dPgF
0.0014
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 5.12e-07 K⁻¹ at 633 nm, dn/dT = -3.16e-07 K⁻¹ at 1310 nm, dn/dT = -3.77e-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 425 wavelengths, the same grid as the API and the library
H-QF50A (CDGM), H-QF50A: n and k versus wavelength
λ (µm)nk
0.3651.6198311.891500e-06
0.3666981.6191511.587436e-06
0.3684031.6184821.281957e-06
0.371.6178679.960000e-07
0.3701171.6178239.892777e-07
0.3718381.6171748.903101e-07
0.3735681.6165357.908821e-07
0.3753061.6159056.909916e-07
0.3770511.6152855.906365e-07
0.3788051.6146754.898146e-07
0.381.6142654.211200e-07
0.3805671.6140734.086929e-07
0.3823371.613483.698966e-07
0.3841161.6128963.309200e-07
0.3859021.612322.917620e-07
0.3876971.6117522.524219e-07
0.38951.6111932.128988e-07
0.391.6110392.019500e-07
0.3913121.6106411.898993e-07
0.3931321.6100971.731833e-07
0.3949611.6095611.563896e-07
0.3967981.6090321.395177e-07
0.3986441.6085111.225674e-07
0.41.6081341.101100e-07
0.4004981.6079971.085422e-07
0.4023611.6074891.026754e-07
0.4042321.6069899.678123e-08
0.4061121.6064959.085967e-08
0.4080011.6060088.491057e-08
0.4098991.6055287.893380e-08
0.4118061.6050547.292923e-08
0.4137211.6045866.689673e-08
0.4156451.6041246.083617e-08
0.4175791.6036685.474742e-08
0.4195211.6032194.863035e-08
0.421.6031094.712200e-08
0.4214721.6027754.624357e-08
0.4234331.6023364.507399e-08
0.4254021.6019044.389897e-08
0.4273811.6014774.271849e-08
0.4293691.6010554.153251e-08
0.4313661.6006384.034102e-08
0.4333721.6002273.914398e-08
0.4353881.5998213.794138e-08
0.4374131.599423.673319e-08
0.4394481.5990243.551937e-08
0.441.5989183.519000e-08
0.4414921.5986333.448312e-08
0.4435451.5982463.351016e-08
0.4456091.5978653.253268e-08
0.4476811.5974883.155064e-08
0.4497641.5971153.056404e-08
0.4518561.5967472.957285e-08
0.4539571.5963842.857706e-08
0.4560691.5960242.757662e-08
0.458191.5956692.657154e-08
0.461.5953712.571400e-08
0.4603211.5953192.567019e-08
0.4624621.5949722.537825e-08
0.4646131.5946292.508496e-08
0.4667751.5942912.479029e-08
0.4689461.5939562.449426e-08
0.4711271.5936252.419685e-08
0.4733181.5932992.389806e-08
0.475521.5929752.359788e-08
0.4777321.5926562.329630e-08
0.4799541.592342.299332e-08
0.481.5923342.298700e-08
0.4821861.5920282.221749e-08
0.4844291.5917192.142803e-08
0.4866821.5914142.063489e-08
0.4889461.5911121.983806e-08
0.491221.5908141.903752e-08
0.4935051.5905191.823326e-08
0.49581.5902271.742526e-08
0.4981071.5899381.661350e-08
0.51.5897051.594700e-08
0.5004231.5896531.592332e-08
0.5027511.5893711.579311e-08
0.5050891.5890921.566229e-08
0.5074391.5888161.553087e-08
0.5097991.5885431.539884e-08
0.512171.5882731.526619e-08
0.5145531.5880051.513293e-08
0.5169461.5877411.499904e-08
0.519351.587481.486454e-08
0.5217661.5872211.472940e-08
0.5241931.5869651.459364e-08
0.5266311.5867121.445725e-08
0.5290811.5864611.432022e-08
0.5315421.5862131.418256e-08
0.5340141.5859681.404425e-08
0.5364981.5857251.390531e-08
0.5389931.5854851.376571e-08
0.54151.5852481.362547e-08
0.5440191.5850121.348457e-08
0.5465491.584781.334302e-08
0.5490921.5845491.320081e-08
0.551.5844681.315000e-08
0.5516461.5843211.318933e-08
0.5542121.5840951.325066e-08
0.5567891.5838721.331227e-08
0.5593791.5836511.337416e-08
0.5619811.5834321.343635e-08
0.5645951.5832151.349882e-08
0.5672211.5830011.356159e-08
0.5698591.5827881.362464e-08
0.572511.5825781.368799e-08
0.5751731.582371.375164e-08
0.5778481.5821641.381558e-08
0.5805361.581961.387981e-08
0.5832361.5817581.394435e-08
0.5859491.5815581.400919e-08
0.5886751.5813591.407432e-08
0.5914131.5811631.413976e-08
0.5941641.5809691.420551e-08
0.5969271.5807771.427156e-08
0.5997041.5805861.433792e-08
0.61.5805661.434500e-08
0.6024931.5803971.440464e-08
0.6052961.580211.447167e-08
0.6081111.5800251.453902e-08
0.610941.5798421.460667e-08
0.6137811.579661.467465e-08
0.6166361.579481.474294e-08
0.6195041.5793021.481154e-08
0.6223861.5791251.488047e-08
0.6252811.578951.494972e-08
0.6281891.5787771.501928e-08
0.6311111.5786051.508918e-08
0.6340471.5784351.515939e-08
0.6369961.5782661.522994e-08
0.6399591.5780991.530081e-08
0.6429351.5779331.537201e-08
0.6459261.5777691.544354e-08
0.648931.5776071.551541e-08
0.651.5775491.554100e-08
0.6519491.5774451.558757e-08
0.6549811.5772861.566005e-08
0.6580281.5771271.573286e-08
0.6610881.576971.580601e-08
0.6641631.5768151.587950e-08
0.6672521.5766611.595333e-08
0.6703561.5765081.602751e-08
0.6734741.5763561.610203e-08
0.6766071.5762061.617690e-08
0.6797541.5760571.625211e-08
0.6829151.575911.632768e-08
0.6860921.5757631.640360e-08
0.6892831.5756181.647987e-08
0.6924891.5754741.655649e-08
0.695711.5753311.663348e-08
0.6989461.575191.671082e-08
0.71.5751441.673600e-08
0.7021971.575051.678854e-08
0.7054631.574911.686663e-08
0.7087451.5747721.694509e-08
0.7120411.5746351.702391e-08
0.7153531.57451.710310e-08
0.7186811.5743651.718265e-08
0.7220231.5742311.726258e-08
0.7253821.5740991.734288e-08
0.7287561.5739671.742355e-08
0.7321461.5738371.750460e-08
0.7355511.5737071.758602e-08
0.7389721.5735791.766783e-08
0.7424091.5734511.775001e-08
0.7458631.5733251.783258e-08
0.7493321.5731991.791553e-08
0.7528171.5730751.799886e-08
0.7563191.5729511.808259e-08
0.7598371.5728291.816670e-08
0.7633711.5727071.825120e-08
0.7669221.5725861.833610e-08
0.7704891.5724661.842139e-08
0.7740731.5723471.850708e-08
0.7776731.5722291.859317e-08
0.781291.5721111.867965e-08
0.7849241.5719951.876654e-08
0.7885751.5718791.885384e-08
0.7922431.5717641.894154e-08
0.7959281.571651.902965e-08
0.799631.5715371.911816e-08
0.81.5715261.912700e-08
0.803351.5714241.875283e-08
0.8070861.5713131.833545e-08
0.810841.5712021.791612e-08
0.8146121.5710911.749485e-08
0.8184011.5709821.707161e-08
0.8222081.5708731.664641e-08
0.8260321.5707651.621923e-08
0.8298741.5706571.579006e-08
0.8337341.5705511.535890e-08
0.8376121.5704451.492573e-08
0.8415081.5703391.449054e-08
0.8454221.5702341.405333e-08
0.8493551.570131.361409e-08
0.851.5701131.354200e-08
0.8533051.5700271.359462e-08
0.8572741.5699241.365781e-08
0.8612621.5698221.372129e-08
0.8652681.569721.378506e-08
0.8692921.5696191.384913e-08
0.8733361.5695191.391350e-08
0.8773981.5694191.397817e-08
0.8814791.569321.404315e-08
0.8855791.5692211.410842e-08
0.8896981.5691231.417399e-08
0.8938361.5690251.423988e-08
0.8979941.5689281.430606e-08
0.91.5688811.433800e-08
0.9021711.5688311.437260e-08
0.9063671.5687351.443949e-08
0.9105831.5686391.450669e-08
0.9148181.5685441.457420e-08
0.9190731.5684491.464203e-08
0.9233481.5683551.471017e-08
0.9276431.5682611.477863e-08
0.9319581.5681681.484741e-08
0.9362931.5680751.491651e-08
0.9406481.5679831.498593e-08
0.9450231.567891.505567e-08
0.9494191.5677991.512573e-08
0.951.5677871.513500e-08
0.9538351.5677081.519605e-08
0.9582711.5676171.526668e-08
0.9627291.5675261.533764e-08
0.9672071.5674361.540893e-08
0.9717051.5673461.548055e-08
0.9762251.5672571.555250e-08
0.9807661.5671681.562479e-08
0.9853281.5670791.569742e-08
0.9899111.5669911.577038e-08
0.9945151.5669031.584368e-08
0.9991411.5668151.591732e-08
11.5667991.593100e-08
1.003791.5667281.599136e-08
1.008461.5666411.606575e-08
1.013151.5665541.614049e-08
1.017861.5664671.621558e-08
1.022591.5663811.629101e-08
1.027351.5662951.636680e-08
1.032131.5662091.644293e-08
1.036931.5661241.651943e-08
1.041751.5660381.659628e-08
1.04661.5659531.667348e-08
1.051471.5658681.675105e-08
1.056361.5657841.682897e-08
1.061.5657211.688700e-08
1.061271.5656991.690726e-08
1.066211.5656151.698593e-08
1.071171.5655311.706496e-08
1.076151.5654471.714435e-08
1.081151.5653641.722412e-08
1.086181.565281.730426e-08
1.091241.5651971.738477e-08
1.096311.5651141.746565e-08
1.101411.5650311.754691e-08
1.106531.5649481.762855e-08
1.111681.5648651.771057e-08
1.116851.5647821.779297e-08
1.122051.56471.787576e-08
1.127271.5646171.795892e-08
1.132511.5645351.804248e-08
1.137781.5644531.812642e-08
1.143071.564371.821076e-08
1.148391.5642881.829549e-08
1.153731.5642061.838061e-08
1.159091.5641241.846612e-08
1.164481.5640421.855204e-08
1.16991.563961.863835e-08
1.175341.5638791.872507e-08
1.180811.5637971.881219e-08
1.18631.5637151.889971e-08
1.191821.5636331.898764e-08
1.197361.5635511.907598e-08
1.21.5635121.911800e-08
1.202931.5634691.982079e-08
1.208531.5633882.116163e-08
1.214151.5633062.250871e-08
1.21981.5632242.386205e-08
1.225471.5631422.522169e-08
1.231171.563062.658766e-08
1.23691.5629782.795997e-08
1.242651.5628962.933867e-08
1.248431.5628143.072379e-08
1.254241.5627323.211534e-08
1.260071.5626493.351337e-08
1.265931.5625673.491790e-08
1.271821.5624853.632897e-08
1.277741.5624023.774660e-08
1.283681.5623193.917082e-08
1.289651.5622374.060166e-08
1.295651.5621544.203916e-08
1.301671.5620714.348335e-08
1.307731.5619874.493426e-08
1.313811.5619044.639191e-08
1.319921.561824.785635e-08
1.326061.5617374.932759e-08
1.332231.5616535.080568e-08
1.338431.5615695.229064e-08
1.344651.5614855.378251e-08
1.350911.56145.528132e-08
1.357191.5613165.678710e-08
1.36351.5612315.829989e-08
1.369851.5611465.981971e-08
1.376221.561066.134660e-08
1.382621.5609756.288059e-08
1.389051.5608896.442172e-08
1.395511.5608036.597002e-08
1.41.5607436.704600e-08
1.4021.5607176.752688e-08
1.408521.560636.909405e-08
1.415071.5605437.066850e-08
1.421661.5604567.225028e-08
1.428271.5603687.383942e-08
1.434911.5602817.543595e-08
1.441591.5601937.703990e-08
1.448291.5601047.865132e-08
1.455031.5600158.027023e-08
1.46181.5599268.189667e-08
1.468591.5598378.353068e-08
1.475431.5597478.517228e-08
1.482291.5596578.682153e-08
1.489181.5595678.847844e-08
1.496111.5594769.014306e-08
1.503071.5593849.181542e-08
1.510061.5592939.349556e-08
1.517081.5592019.518352e-08
1.524141.5591089.687933e-08
1.531231.5590159.858302e-08
1.538351.5589221.002946e-07
1.545511.5588281.020142e-07
1.55271.5587341.037418e-07
1.559921.5586391.054774e-07
1.567171.5585441.072211e-07
1.574461.5584481.089729e-07
1.581791.5583521.107329e-07
1.589141.5582551.125010e-07
1.596541.5581581.142773e-07
1.61.5581131.151100e-07
1.603961.5580611.217641e-07
1.611421.5579621.342963e-07
1.618921.5578641.468868e-07
1.626451.5577641.595359e-07
1.634011.5576641.722439e-07
1.641611.5575641.850109e-07
1.649251.5574631.978373e-07
1.656921.5573612.107234e-07
1.664631.5572592.236694e-07
1.672371.5571562.366756e-07
1.680151.5570532.497424e-07
1.687961.5569492.628699e-07
1.695811.5568442.760584e-07
1.70371.5567392.893084e-07
1.711631.5566333.026199e-07
1.719591.5565263.159934e-07
1.727591.5564193.294290e-07
1.735621.5563113.429272e-07
1.743691.5562023.564881e-07
1.751811.5560933.701121e-07
1.759951.5559833.837995e-07
1.768141.5558723.975506e-07
1.776361.555764.113656e-07
1.784631.5556484.252449e-07
1.792931.5555354.391887e-07
1.81.5554384.510700e-07
1.801271.5554214.547720e-07
1.809641.5553064.792630e-07
1.818061.5551915.038679e-07
1.826521.5550745.285872e-07
1.835011.5549575.534215e-07
1.843551.5548395.783714e-07
1.852121.554726.034373e-07
1.860741.5546016.286197e-07
1.869391.554486.539193e-07
1.878091.5543596.793366e-07
1.886821.5542367.048721e-07
1.89561.5541137.305264e-07
1.904421.5539897.563000e-07
1.913281.5538647.821935e-07
1.922181.5537388.082074e-07
1.931121.5536118.343424e-07
1.94011.5534838.605989e-07
1.949121.5533548.869775e-07
1.958191.5532249.134788e-07
1.96731.5530939.401034e-07
1.976451.5529619.668518e-07
1.985641.5528289.937246e-07
1.994881.5526931.020722e-06
21.5526191.035700e-06
2.004161.5525581.068616e-06
2.013481.5524221.142465e-06
2.022841.5522841.216657e-06
2.032251.5521461.291195e-06
2.04171.5520061.366079e-06
2.05121.5518651.441311e-06
2.060741.5517231.516894e-06
2.070331.551581.592827e-06
2.079961.5514361.669115e-06
2.089631.551291.745756e-06
2.099351.5511441.822755e-06
2.109121.5509961.900111e-06
2.118931.5508461.977828e-06
2.128781.5506962.055906e-06
2.138681.5505442.134347e-06
2.148631.5503912.213152e-06
2.158621.5502372.292325e-06
2.168671.5500812.371865e-06
2.178751.5499242.451776e-06
2.188891.5497652.532058e-06
2.199071.5496052.612714e-06
2.21.5495912.620100e-06
2.20931.5494442.665865e-06
2.219571.5492812.716455e-06
2.22991.5491172.767280e-06
2.240271.5489512.818341e-06
2.250691.5487842.869640e-06
2.261161.5486162.921177e-06
2.271671.5484462.972954e-06
2.282241.5482743.024972e-06
2.292861.5481013.077232e-06
2.303521.5479263.129735e-06
2.314241.5477493.182482e-06
2.3251.5475713.235475e-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
—