Optical constants

Refractive index of H-BAF3 (CDGM)

H-BAF3: 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
1.57957
Extinction coefficient k
1.04495e-08
Permittivity ε1
2.49503
Permittivity ε2
3.30114e-08
Absorption coefficient α
0.00223472 cm⁻¹
Penetration depth δ = λ/(2πk)
8.94966e+09 nm
Abbe number Vd
53.712
Chromatic dispersion dn/dλ
-0.0554793 µm⁻¹
Group index ng
1.61217
Group velocity dispersion
100.007 fs²/mm
Dispersion parameter D
-545.589 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-BAF3 (CDGM): H-BAF3
cdgm_h_baf3 = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-BAF3", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_baf3.range_nm)  # (365, 2325) nm
eps = cdgm_h_baf3.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=1.16102167λ2λ2−0.00637008736+0.926012255λ2λ2−107.341889+0.290935978λ2λ2−0.0265573391

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.16102167
C30.00637008736
C40.926012255
C5107.341889
C60.290935978
C70.0265573391

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 3.07e-06 1.1e-08 8.58e-11 5.69e-07 1.29e-09 0.205
nd
1.579570
Vd
53.711637
glass code
580537
density
value: 3140
thermal expansion
value: 6.7e-06, temperature range: 243 343; value: 8.4e-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 = 2.20e-06 K⁻¹ at 633 nm, dn/dT = 1.58e-06 K⁻¹ at 1310 nm, dn/dT = 1.52e-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-BAF3 (CDGM), H-BAF3: n and k versus wavelength
λ (µm)nk
0.3651.6067182.281700e-07
0.3666981.6062791.988229e-07
0.3684031.6058461.693394e-07
0.371.6054461.417400e-07
0.3701171.6054171.410141e-07
0.3718381.6049941.303273e-07
0.3735681.6045751.195908e-07
0.3753061.6041621.088044e-07
0.3770511.6037539.796782e-08
0.3788051.6033498.708082e-08
0.381.6030787.966300e-08
0.3805671.602957.798437e-08
0.3823371.6025557.274386e-08
0.3841161.6021656.747898e-08
0.3859021.6017796.218961e-08
0.3876971.6013985.687563e-08
0.38951.6010215.153694e-08
0.391.6009185.005800e-08
0.3913121.6006494.768736e-08
0.3931321.600284.439895e-08
0.3949611.5999164.109524e-08
0.3967981.5995563.777616e-08
0.3986441.59923.444165e-08
0.41.5989423.199100e-08
0.4004981.5988483.194682e-08
0.4023611.5985013.178149e-08
0.4042321.5981563.161540e-08
0.4061121.5978163.144853e-08
0.4080011.597483.128088e-08
0.4098991.5971473.111246e-08
0.4118061.5968183.094325e-08
0.4137211.5964923.077325e-08
0.4156451.5961713.060246e-08
0.4175791.5958523.043088e-08
0.4195211.5955373.025851e-08
0.421.5954613.021600e-08
0.4214721.5952262.980226e-08
0.4234331.5949182.925138e-08
0.4254021.5946132.869795e-08
0.4273811.5943122.814193e-08
0.4293691.5940142.758334e-08
0.4313661.5937192.702214e-08
0.4333721.5934272.645834e-08
0.4353881.5931392.589191e-08
0.4374131.5928532.532285e-08
0.4394481.5925712.475114e-08
0.441.5924952.459600e-08
0.4414921.5922912.440458e-08
0.4435451.5920152.414112e-08
0.4456091.5917412.387642e-08
0.4476811.5914712.361050e-08
0.4497641.5912032.334334e-08
0.4518561.5909382.307494e-08
0.4539571.5906762.280528e-08
0.4560691.5904162.253438e-08
0.458191.590162.226221e-08
0.461.5899442.203000e-08
0.4603211.5899052.192205e-08
0.4624621.5896542.120264e-08
0.4646131.5894052.047988e-08
0.4667751.5891591.975376e-08
0.4689461.5889151.902427e-08
0.4711271.5886741.829138e-08
0.4733181.5884351.755508e-08
0.475521.5881991.681535e-08
0.4777321.5879651.607219e-08
0.4799541.5877341.532557e-08
0.481.5877291.531000e-08
0.4821861.5875041.537963e-08
0.4844291.5872781.545106e-08
0.4866821.5870531.552283e-08
0.4889461.5868311.559493e-08
0.491221.5866111.566736e-08
0.4935051.5863931.574013e-08
0.49581.5861771.581324e-08
0.4981071.5859641.588669e-08
0.51.5857911.594700e-08
0.5004231.5857521.592332e-08
0.5027511.5855431.579311e-08
0.5050891.5853361.566229e-08
0.5074391.5851311.553087e-08
0.5097991.5849271.539884e-08
0.512171.5847261.526619e-08
0.5145531.5845271.513293e-08
0.5169461.584331.499904e-08
0.519351.5841351.486454e-08
0.5217661.5839411.472940e-08
0.5241931.583751.459364e-08
0.5266311.583561.445725e-08
0.5290811.5833721.432022e-08
0.5315421.5831861.418256e-08
0.5340141.5830021.404425e-08
0.5364981.5828191.390531e-08
0.5389931.5826391.376571e-08
0.54151.582461.362547e-08
0.5440191.5822821.348457e-08
0.5465491.5821071.334302e-08
0.5490921.5819331.320081e-08
0.551.5818711.315000e-08
0.5516461.581761.303180e-08
0.5542121.5815891.284752e-08
0.5567891.581421.266237e-08
0.5593791.5812531.247637e-08
0.5619811.5810871.228950e-08
0.5645951.5809221.210176e-08
0.5672211.5807591.191314e-08
0.5698591.5805981.172365e-08
0.572511.5804381.153328e-08
0.5751731.580281.134202e-08
0.5778481.5801221.114988e-08
0.5805361.5799671.095684e-08
0.5832361.5798131.076290e-08
0.5859491.579661.056806e-08
0.5886751.5795081.037231e-08
0.5914131.5793581.017565e-08
0.5941641.579219.978081e-09
0.5969271.5790629.779591e-09
0.5997041.5789169.580176e-09
0.61.5789019.558900e-09
0.6024931.5787719.598596e-09
0.6052961.5786289.643216e-09
0.6081111.5784869.688043e-09
0.610941.5783459.733079e-09
0.6137811.5782059.778324e-09
0.6166361.5780669.823780e-09
0.6195041.5779299.869447e-09
0.6223861.5777939.915327e-09
0.6252811.5776589.961420e-09
0.6281891.5775241.000773e-08
0.6311111.5773911.005425e-08
0.6340471.577261.010099e-08
0.6369961.5771291.014795e-08
0.6399591.5771.019512e-08
0.6429351.5768721.024251e-08
0.6459261.5767451.029013e-08
0.648931.5766181.033797e-08
0.651.5765741.035500e-08
0.6519491.5764931.038606e-08
0.6549811.5763691.043440e-08
0.6580281.5762461.048296e-08
0.6610881.5761241.053175e-08
0.6641631.5760031.058076e-08
0.6672521.5758831.063000e-08
0.6703561.5757641.067947e-08
0.6734741.5756461.072918e-08
0.6766071.5755291.077911e-08
0.6797541.5754131.082927e-08
0.6829151.5752971.087967e-08
0.6860921.5751831.093031e-08
0.6892831.575071.098117e-08
0.6924891.5749571.103228e-08
0.695711.5748451.108362e-08
0.6989461.5747341.113520e-08
0.71.5746991.115200e-08
0.7021971.5746241.118700e-08
0.7054631.5745151.123903e-08
0.7087451.5744071.129130e-08
0.7120411.5742991.134382e-08
0.7153531.5741921.139658e-08
0.7186811.5740871.144958e-08
0.7220231.5739811.150283e-08
0.7253821.5738771.155633e-08
0.7287561.5737731.161008e-08
0.7321461.573671.166408e-08
0.7355511.5735681.171833e-08
0.7389721.5734671.177283e-08
0.7424091.5733661.182758e-08
0.7458631.5732661.188259e-08
0.7493321.5731671.193786e-08
0.7528171.5730681.199338e-08
0.7563191.5729711.204916e-08
0.7598371.5728731.210520e-08
0.7633711.5727771.216150e-08
0.7669221.5726811.221806e-08
0.7704891.5725861.227489e-08
0.7740731.5724911.233198e-08
0.7776731.5723971.238933e-08
0.781291.5723041.244696e-08
0.7849241.5722111.250485e-08
0.7885751.5721191.256301e-08
0.7922431.5720271.262144e-08
0.7959281.5719361.268014e-08
0.799631.5718461.273911e-08
0.81.5718371.274500e-08
0.803351.5717561.279840e-08
0.8070861.5716671.285796e-08
0.810841.5715781.291780e-08
0.8146121.571491.297791e-08
0.8184011.5714021.303831e-08
0.8222081.5713151.309899e-08
0.8260321.5712281.315995e-08
0.8298741.5711421.322119e-08
0.8337341.5710561.328272e-08
0.8376121.5709711.334454e-08
0.8415081.5708861.340664e-08
0.8454221.5708021.346903e-08
0.8493551.5707181.353171e-08
0.851.5707041.354200e-08
0.8533051.5706351.359462e-08
0.8572741.5705521.365781e-08
0.8612621.5704691.372129e-08
0.8652681.5703871.378506e-08
0.8692921.5703061.384913e-08
0.8733361.5702241.391350e-08
0.8773981.5701441.397817e-08
0.8814791.5700631.404315e-08
0.8855791.5699831.410842e-08
0.8896981.5699041.417399e-08
0.8938361.5698241.423988e-08
0.8979941.5697451.430606e-08
0.91.5697081.433800e-08
0.9021711.5696671.437260e-08
0.9063671.5695891.443949e-08
0.9105831.5695111.450669e-08
0.9148181.5694331.457420e-08
0.9190731.5693561.464203e-08
0.9233481.5692791.471017e-08
0.9276431.5692031.477863e-08
0.9319581.5691271.484741e-08
0.9362931.5690511.491651e-08
0.9406481.5689751.498593e-08
0.9450231.56891.505567e-08
0.9494191.5688251.512573e-08
0.951.5688151.513500e-08
0.9538351.568751.519605e-08
0.9582711.5686751.526668e-08
0.9627291.5686011.533764e-08
0.9672071.5685271.540893e-08
0.9717051.5684531.548055e-08
0.9762251.568381.555250e-08
0.9807661.5683061.562479e-08
0.9853281.5682331.569742e-08
0.9899111.568161.577038e-08
0.9945151.5680881.584368e-08
0.9991411.5680151.591732e-08
11.5680021.593100e-08
1.003791.5679431.545799e-08
1.008461.5678711.487503e-08
1.013151.5677991.428935e-08
1.017861.5677271.370095e-08
1.022591.5676561.310981e-08
1.027351.5675851.251592e-08
1.032131.5675131.191927e-08
1.036931.5674421.131985e-08
1.041751.5673711.071763e-08
1.04661.5673011.011262e-08
1.051471.567239.504792e-09
1.056361.5671598.894136e-09
1.061.5671078.439400e-09
1.061271.5670898.536385e-09
1.066211.5670198.912906e-09
1.071171.5669489.291179e-09
1.076151.5668789.671212e-09
1.081151.5668081.005301e-08
1.086181.5667381.043659e-08
1.091241.5666691.082195e-08
1.096311.5665991.120910e-08
1.101411.5665291.159805e-08
1.106531.5664591.198882e-08
1.111681.566391.238140e-08
1.116851.566321.277580e-08
1.122051.5662511.317204e-08
1.127271.5661811.357013e-08
1.132511.5661121.397006e-08
1.137781.5660421.437186e-08
1.143071.5659731.477552e-08
1.148391.5659031.518106e-08
1.153731.5658341.558849e-08
1.159091.5657651.599782e-08
1.164481.5656951.640904e-08
1.16991.5656261.682218e-08
1.175341.5655561.723724e-08
1.180811.5654871.765424e-08
1.18631.5654171.807317e-08
1.191821.5653481.849405e-08
1.197361.5652781.891689e-08
1.21.5652451.911800e-08
1.202931.5652082.080989e-08
1.208531.5651382.403784e-08
1.214151.5650692.728080e-08
1.21981.5649993.053884e-08
1.225471.5649293.381205e-08
1.231171.5648593.710047e-08
1.23691.5647884.040419e-08
1.242651.5647184.372328e-08
1.248431.5646484.705781e-08
1.254241.5645775.040784e-08
1.260071.5645065.377346e-08
1.265931.5644365.715473e-08
1.271821.5643656.055173e-08
1.277741.5642946.396453e-08
1.283681.5642226.739321e-08
1.289651.5641517.083783e-08
1.295651.564087.429848e-08
1.301671.5640087.777522e-08
1.307731.5639368.126813e-08
1.313811.5638648.477729e-08
1.319921.5637928.830277e-08
1.326061.5637199.184465e-08
1.332231.5636479.540301e-08
1.338431.5635749.897791e-08
1.344651.5635011.025694e-07
1.350911.5634271.061777e-07
1.357191.5633541.098027e-07
1.36351.563281.134446e-07
1.369851.5632061.171034e-07
1.376221.5631321.207793e-07
1.382621.5630571.244722e-07
1.389051.5629821.281823e-07
1.395511.5629071.319097e-07
1.41.5628551.345000e-07
1.4021.5628321.340492e-07
1.408521.5627561.325800e-07
1.415071.5626811.311039e-07
1.421661.5626041.296210e-07
1.428271.5625281.281312e-07
1.434911.5624511.266344e-07
1.441591.5623741.251307e-07
1.448291.5622961.236200e-07
1.455031.5622181.221023e-07
1.46181.562141.205775e-07
1.468591.5620621.190456e-07
1.475431.5619831.175066e-07
1.482291.5619031.159604e-07
1.489181.5618241.144071e-07
1.496111.5617441.128465e-07
1.503071.5616631.112787e-07
1.510061.5615831.097035e-07
1.517081.5615011.081211e-07
1.524141.561421.065313e-07
1.531231.5613381.049340e-07
1.538351.5612551.033294e-07
1.545511.5611721.017173e-07
1.55271.5610891.000977e-07
1.559921.5610059.847054e-08
1.567171.5609219.683584e-08
1.574461.5608369.519353e-08
1.581791.5607519.354358e-08
1.589141.5606659.188595e-08
1.596541.5605799.022062e-08
1.61.5605388.944000e-08
1.603961.5604929.311067e-08
1.611421.5604051.000240e-07
1.618921.5603171.069695e-07
1.626451.5602291.139473e-07
1.634011.560141.209575e-07
1.641611.560051.280003e-07
1.649251.559961.350759e-07
1.656921.559871.421845e-07
1.664631.5597791.493260e-07
1.672371.5596871.565008e-07
1.680151.5595951.637090e-07
1.687961.5595021.709507e-07
1.695811.5594091.782261e-07
1.70371.5593151.855353e-07
1.711631.559221.928785e-07
1.719591.5591242.002559e-07
1.727591.5590282.076676e-07
1.735621.5589322.151138e-07
1.743691.5588342.225946e-07
1.751811.5587362.301102e-07
1.759951.5586382.376607e-07
1.768141.5585382.452464e-07
1.776361.5584382.528673e-07
1.784631.5583372.605237e-07
1.792931.5582362.682158e-07
1.81.5581492.747700e-07
1.801271.5581342.763078e-07
1.809641.5580312.864811e-07
1.818061.5579272.967018e-07
1.826521.5578223.069699e-07
1.835011.5577173.172859e-07
1.843551.5576113.276498e-07
1.852121.5575043.380620e-07
1.860741.5573963.485226e-07
1.869391.5572873.590318e-07
1.878091.5571783.695899e-07
1.886821.5570683.801971e-07
1.89561.5569573.908537e-07
1.904421.5568454.015598e-07
1.913281.5567324.123157e-07
1.922181.5566184.231217e-07
1.931121.5565034.339779e-07
1.94011.5563884.448846e-07
1.949121.5562714.558420e-07
1.958191.5561544.668504e-07
1.96731.5560354.779100e-07
1.976451.5559164.890211e-07
1.985641.5557955.001838e-07
1.994881.5556745.113985e-07
21.5556065.176200e-07
2.004161.5555525.419683e-07
2.013481.5554285.965942e-07
2.022841.5553046.514742e-07
2.032251.5551787.066094e-07
2.04171.5550527.620011e-07
2.05121.5549248.176505e-07
2.060741.5547958.735587e-07
2.070331.5546669.297270e-07
2.079961.5545359.861565e-07
2.089631.5544031.042848e-06
2.099351.5542691.099804e-06
2.109121.5541351.157025e-06
2.118931.5541.214511e-06
2.128781.5538631.272266e-06
2.138681.5537251.330288e-06
2.148631.5535861.388581e-06
2.158621.5534451.447145e-06
2.168671.5533041.505981e-06
2.178751.5531611.565091e-06
2.188891.5530171.624476e-06
2.199071.5528711.684137e-06
2.21.5528581.689600e-06
2.20931.5527251.737759e-06
2.219571.5525761.790995e-06
2.22991.5524271.844478e-06
2.240271.5522761.898210e-06
2.250691.5521241.952192e-06
2.261161.551972.006425e-06
2.271671.5518152.060911e-06
2.282241.5516592.115649e-06
2.292861.5515012.170643e-06
2.303521.5513422.225892e-06
2.314241.5511812.281398e-06
2.3251.5510182.337163e-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
—