Optical constants

Refractive index of D-ZF10-25 (CDGM)

D-ZF10-25: 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
1.68731
Extinction coefficient k
3.28468e-08
Permittivity ε1
2.847
Permittivity ε2
1.10845e-07
Absorption coefficient α
0.0070246 cm⁻¹
Penetration depth δ = λ/(2πk)
2.84714e+09 nm
Abbe number Vd
31.184
Chromatic dispersion dn/dλ
-0.111043 µm⁻¹
Group index ng
1.75255
Group velocity dispersion
221.902 fs²/mm
Dispersion parameter D
-1210.59 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-ZF10-25 (CDGM): D-ZF10-25
cdgm_d_zf10_25 = ls.fetch_refractiveindex("specs", "CDGM-optical", "D-ZF10-25", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_d_zf10_25.range_nm)  # (365, 2325) nm
eps = cdgm_d_zf10_25.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=1.39531577λ2λ2−134.661574+0.180389834λ2λ2−0.0604305431+1.57395389λ2λ2−0.0122657049

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.39531577
C3134.661574
C40.180389834
C50.0604305431
C61.57395389
C70.0122657049

Comments and conditions

anneal rate:25°C/h

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: -5.76e-06 6.62e-09 -3.57e-11 9.8e-07 1.12e-09 0.261
nd
1.687310
Vd
31.183804
glass code
687312
density
value: 2840
thermal expansion
value: 1e-05, temperature range: 243 343; value: 1.29e-05, temperature range: 293 573
dPgF
0.0067
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = -1.53e-06 K⁻¹ at 633 nm, dn/dT = -2.73e-06 K⁻¹ at 1310 nm, dn/dT = -2.81e-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
D-ZF10-25 (CDGM), D-ZF10-25: n and k versus wavelength
λ (µm)nk
0.3651.7499485.795100e-06
0.3666981.7487624.848782e-06
0.3684031.7475983.898063e-06
0.371.7465333.008100e-06
0.3701171.7464562.988158e-06
0.3718381.7453332.694567e-06
0.3735681.7442312.399611e-06
0.3753061.7431472.103283e-06
0.3770511.7420831.805576e-06
0.3788051.7410371.506485e-06
0.381.7403371.302700e-06
0.3805671.7400091.268103e-06
0.3823371.7389981.160094e-06
0.3841161.7380041.051583e-06
0.3859021.7370279.425669e-07
0.3876971.7360658.330439e-07
0.38951.735127.230115e-07
0.391.7348616.925300e-07
0.3913121.7341896.536304e-07
0.3931321.7332745.996710e-07
0.3949611.7323735.454607e-07
0.3967981.7314874.909982e-07
0.3986441.7306144.362824e-07
0.41.7299843.960700e-07
0.4004981.7297553.909177e-07
0.4023611.7289093.716373e-07
0.4042321.7280763.522671e-07
0.4061121.7272563.328069e-07
0.4080011.7264483.132561e-07
0.4098991.7256522.936144e-07
0.4118061.7248682.738813e-07
0.4137211.7240962.540565e-07
0.4156451.7233352.341394e-07
0.4175791.7225852.141297e-07
0.4195211.7218461.940270e-07
0.421.7216661.890700e-07
0.4214721.7211181.848693e-07
0.4234331.72041.792762e-07
0.4254021.7196921.736572e-07
0.4273811.7189941.680120e-07
0.4293691.7183061.623405e-07
0.4313661.7176281.566427e-07
0.4333721.7169591.509183e-07
0.4353881.7162991.451674e-07
0.4374131.7156491.393897e-07
0.4394481.7150071.335851e-07
0.441.7148351.320100e-07
0.4414921.7143741.301988e-07
0.4435451.7137491.277058e-07
0.4456091.7131331.252012e-07
0.4476811.7125251.226850e-07
0.4497641.7119251.201571e-07
0.4518561.7113331.176174e-07
0.4539571.7107491.150659e-07
0.4560691.7101721.125025e-07
0.458191.7096031.099272e-07
0.461.7091251.077300e-07
0.4603211.7090411.073644e-07
0.4624621.7084871.049281e-07
0.4646131.707941.024804e-07
0.4667751.7073991.000213e-07
0.4689461.7068669.755076e-08
0.4711271.7063399.506875e-08
0.4733181.7058199.257519e-08
0.475521.7053059.007004e-08
0.4777321.7047978.755323e-08
0.4799541.7042968.502472e-08
0.481.7042868.497200e-08
0.4821861.7038028.269901e-08
0.4844291.7033138.036705e-08
0.4866821.702837.802424e-08
0.4889461.7023537.567054e-08
0.491221.7018827.330589e-08
0.4935051.7014177.093024e-08
0.49581.7009576.854354e-08
0.4981071.7005036.614574e-08
0.51.7001356.417700e-08
0.5004231.7000546.389391e-08
0.5027511.699616.233756e-08
0.5050891.6991726.077397e-08
0.5074391.6987395.920311e-08
0.5097991.6983115.762494e-08
0.512171.6978885.603944e-08
0.5145531.6974695.444655e-08
0.5169461.6970565.284626e-08
0.519351.6966485.123852e-08
0.5217661.6962444.962331e-08
0.5241931.6958454.800058e-08
0.5266311.695454.637031e-08
0.5290811.695064.473245e-08
0.5315421.6946744.308698e-08
0.5340141.6942934.143385e-08
0.5364981.6939163.977303e-08
0.5389931.6935433.810448e-08
0.54151.6931753.642818e-08
0.5440191.692813.474408e-08
0.5465491.692453.305214e-08
0.5490921.6920933.135234e-08
0.551.6919673.074500e-08
0.5516461.6917413.083699e-08
0.5542121.6913923.098043e-08
0.5567891.6910473.112453e-08
0.5593791.6907063.126930e-08
0.5619811.6903683.141474e-08
0.5645951.6900353.156086e-08
0.5672211.6897043.170766e-08
0.5698591.6893783.185514e-08
0.572511.6890553.200331e-08
0.5751731.6887353.215217e-08
0.5778481.6884193.230172e-08
0.5805361.6881063.245197e-08
0.5832361.6877963.260291e-08
0.5859491.687493.275456e-08
0.5886751.6871873.290691e-08
0.5914131.6868873.305997e-08
0.5941641.686593.321375e-08
0.5969271.6862963.336823e-08
0.5997041.6860063.352344e-08
0.61.6859753.354000e-08
0.6024931.6857183.393926e-08
0.6052961.6854333.438803e-08
0.6081111.6851513.483890e-08
0.610941.6848723.529186e-08
0.6137811.6845963.574692e-08
0.6166361.6843233.620411e-08
0.6195041.6840523.666342e-08
0.6223861.6837843.712486e-08
0.6252811.6835193.758846e-08
0.6281891.6832573.805421e-08
0.6311111.6829973.852212e-08
0.6340471.682743.899221e-08
0.6369961.6824853.946449e-08
0.6399591.6822333.993897e-08
0.6429351.6819834.041565e-08
0.6459261.6817354.089455e-08
0.648931.681494.137568e-08
0.651.6814044.154700e-08
0.6519491.6812484.123430e-08
0.6549811.6810084.074765e-08
0.6580281.680774.025875e-08
0.6610881.6805343.976756e-08
0.6641631.6803013.927410e-08
0.6672521.680073.877834e-08
0.6703561.6798413.828027e-08
0.6734741.6796143.777988e-08
0.6766071.679393.727717e-08
0.6797541.6791673.677212e-08
0.6829151.6789473.626472e-08
0.6860921.6787283.575496e-08
0.6892831.6785123.524283e-08
0.6924891.6782973.472832e-08
0.695711.6780853.421142e-08
0.6989461.6778753.369211e-08
0.71.6778073.352300e-08
0.7021971.6776663.306645e-08
0.7054631.677463.238781e-08
0.7087451.6772553.170601e-08
0.7120411.6770523.102104e-08
0.7153531.6768513.033289e-08
0.7186811.6766522.964153e-08
0.7220231.6764542.894696e-08
0.7253821.6762582.824916e-08
0.7287561.6760642.754811e-08
0.7321461.6758722.684380e-08
0.7355511.6756812.613622e-08
0.7389721.6754922.542534e-08
0.7424091.6753052.471116e-08
0.7458631.6751192.399366e-08
0.7493321.6749352.327282e-08
0.7528171.6747522.254862e-08
0.7563191.6745712.182106e-08
0.7598371.6743922.109011e-08
0.7633711.6742142.035576e-08
0.7669221.6740371.961800e-08
0.7704891.6738621.887681e-08
0.7740731.6736891.813217e-08
0.7776731.6735171.738406e-08
0.781291.6733461.663248e-08
0.7849241.6731761.587739e-08
0.7885751.6730091.511880e-08
0.7922431.6728421.435668e-08
0.7959281.6726771.359101e-08
0.799631.6725131.282179e-08
0.81.6724961.274500e-08
0.803351.672351.279840e-08
0.8070861.6721881.285796e-08
0.810841.6720281.291780e-08
0.8146121.6718691.297791e-08
0.8184011.6717121.303831e-08
0.8222081.6715551.309899e-08
0.8260321.67141.315995e-08
0.8298741.6712461.322119e-08
0.8337341.6710931.328272e-08
0.8376121.6709411.334454e-08
0.8415081.6707911.340664e-08
0.8454221.6706411.346903e-08
0.8493551.6704921.353171e-08
0.851.6704681.354200e-08
0.8533051.6703451.359462e-08
0.8572741.6701991.365781e-08
0.8612621.6700531.372129e-08
0.8652681.6699091.378506e-08
0.8692921.6697661.384913e-08
0.8733361.6696241.391350e-08
0.8773981.6694821.397817e-08
0.8814791.6693421.404315e-08
0.8855791.6692031.410842e-08
0.8896981.6690651.417399e-08
0.8938361.6689271.423988e-08
0.8979941.6687911.430606e-08
0.91.6687251.433800e-08
0.9021711.6686551.437260e-08
0.9063671.668521.443949e-08
0.9105831.6683861.450669e-08
0.9148181.6682531.457420e-08
0.9190731.6681211.464203e-08
0.9233481.667991.471017e-08
0.9276431.6678591.477863e-08
0.9319581.6677291.484741e-08
0.9362931.66761.491651e-08
0.9406481.6674721.498593e-08
0.9450231.6673451.505567e-08
0.9494191.6672181.512573e-08
0.951.6672011.513500e-08
0.9538351.6670921.519605e-08
0.9582711.6669671.526668e-08
0.9627291.6668431.533764e-08
0.9672071.6667191.540893e-08
0.9717051.6665961.548055e-08
0.9762251.6664731.555250e-08
0.9807661.6663511.562479e-08
0.9853281.666231.569742e-08
0.9899111.666111.577038e-08
0.9945151.665991.584368e-08
0.9991411.6658711.591732e-08
11.6658491.593100e-08
1.003791.6657521.599136e-08
1.008461.6656341.606575e-08
1.013151.6655171.614049e-08
1.017861.66541.621558e-08
1.022591.6652831.629101e-08
1.027351.6651681.636680e-08
1.032131.6650521.644293e-08
1.036931.6649381.651943e-08
1.041751.6648231.659628e-08
1.04661.664711.667348e-08
1.051471.6645961.675105e-08
1.056361.6644841.682897e-08
1.061.66441.688700e-08
1.061271.6643711.690726e-08
1.066211.6642591.698593e-08
1.071171.6641481.706496e-08
1.076151.6640371.714435e-08
1.081151.6639271.722412e-08
1.086181.6638161.730426e-08
1.091241.6637071.738477e-08
1.096311.6635971.746565e-08
1.101411.6634881.754691e-08
1.106531.663381.762855e-08
1.111681.6632721.771057e-08
1.116851.6631641.779297e-08
1.122051.6630561.787576e-08
1.127271.6629491.795892e-08
1.132511.6628421.804248e-08
1.137781.6627351.812642e-08
1.143071.6626291.821076e-08
1.148391.6625231.829549e-08
1.153731.6624171.838061e-08
1.159091.6623121.846612e-08
1.164481.6622071.855204e-08
1.16991.6621021.863835e-08
1.175341.6619971.872507e-08
1.180811.6618921.881219e-08
1.18631.6617881.889971e-08
1.191821.6616841.898764e-08
1.197361.661581.907598e-08
1.21.6615311.911800e-08
1.202931.6614761.916472e-08
1.208531.6613731.925385e-08
1.214151.661271.934340e-08
1.21981.6611661.943336e-08
1.225471.6610631.952374e-08
1.231171.660961.961454e-08
1.23691.6608581.970577e-08
1.242651.6607551.979742e-08
1.248431.6606521.988949e-08
1.254241.660551.998199e-08
1.260071.6604482.007493e-08
1.265931.6603452.016829e-08
1.271821.6602432.026209e-08
1.277741.6601412.035633e-08
1.283681.6600392.045101e-08
1.289651.6599372.054612e-08
1.295651.6598352.064168e-08
1.301671.6597332.073768e-08
1.307731.6596312.083413e-08
1.313811.6595292.093103e-08
1.319921.6594272.102837e-08
1.326061.6593252.112617e-08
1.332231.6592232.122443e-08
1.338431.659122.132314e-08
1.344651.6590182.142231e-08
1.350911.6589162.152195e-08
1.357191.6588142.162204e-08
1.36351.6587122.172260e-08
1.369851.6586092.182363e-08
1.376221.6585072.192513e-08
1.382621.6584042.202711e-08
1.389051.6583012.212955e-08
1.395511.6581982.223247e-08
1.41.6581272.230400e-08
1.4021.6580952.233588e-08
1.408521.6579922.243976e-08
1.415071.6578892.254412e-08
1.421661.6577862.264897e-08
1.428271.6576822.275431e-08
1.434911.6575782.286014e-08
1.441591.6574742.296646e-08
1.448291.657372.307328e-08
1.455031.6572662.318059e-08
1.46181.6571612.328840e-08
1.468591.6570562.339671e-08
1.475431.6569512.350553e-08
1.482291.6568462.361485e-08
1.489181.656742.372468e-08
1.496111.6566342.383503e-08
1.503071.6565282.394588e-08
1.510061.6564212.405725e-08
1.517081.6563152.416914e-08
1.524141.6562082.428155e-08
1.531231.65612.439448e-08
1.538351.6559932.450794e-08
1.545511.6558842.462193e-08
1.55271.6557762.473644e-08
1.559921.6556672.485149e-08
1.567171.6555582.496707e-08
1.574461.6554492.508319e-08
1.581791.6553392.519985e-08
1.589141.6552282.531706e-08
1.596541.6551182.543481e-08
1.61.6550662.549000e-08
1.603961.6550063.100641e-08
1.611421.6548954.139597e-08
1.618921.6547835.183386e-08
1.626451.654676.232031e-08
1.634011.6545577.285552e-08
1.641611.6544448.343975e-08
1.649251.654339.407320e-08
1.656921.6542151.047561e-07
1.664631.65411.154887e-07
1.672371.6539851.262712e-07
1.680151.6538691.371039e-07
1.687961.6537521.479870e-07
1.695811.6536351.589206e-07
1.70371.6535181.699052e-07
1.711631.6533991.809408e-07
1.719591.653281.920278e-07
1.727591.6531612.031663e-07
1.735621.6530412.143566e-07
1.743691.652922.255990e-07
1.751811.6527992.368937e-07
1.759951.6526772.482409e-07
1.768141.6525542.596409e-07
1.776361.6524312.710940e-07
1.784631.6523072.826002e-07
1.792931.6521822.941601e-07
1.81.6520763.040100e-07
1.801271.6520573.066198e-07
1.809641.651933.238854e-07
1.818061.6518043.412312e-07
1.826521.6516763.586578e-07
1.835011.6515473.761654e-07
1.843551.6514183.937544e-07
1.852121.6512884.114252e-07
1.860741.6511584.291783e-07
1.869391.6510264.470139e-07
1.878091.6508944.649324e-07
1.886821.650764.829344e-07
1.89561.6506265.010200e-07
1.904421.6504915.191898e-07
1.913281.6503555.374441e-07
1.922181.6502195.557833e-07
1.931121.6500815.742077e-07
1.94011.6499435.927179e-07
1.949121.6498036.113142e-07
1.958191.6496636.299970e-07
1.96731.6495216.487667e-07
1.976451.6493796.676237e-07
1.985641.6492356.865684e-07
1.994881.6490917.056012e-07
21.6490117.161600e-07
2.004161.6489467.331924e-07
2.013481.6487997.714051e-07
2.022841.6486528.097956e-07
2.032251.6485038.483646e-07
2.04171.6483548.871130e-07
2.05121.6482039.260416e-07
2.060741.6480519.651513e-07
2.070331.6478981.004443e-06
2.079961.6477441.043917e-06
2.089631.6475891.083575e-06
2.099351.6474321.123418e-06
2.109121.6472741.163445e-06
2.118931.6471161.203659e-06
2.128781.6469551.244060e-06
2.138681.6467941.284649e-06
2.148631.6466321.325427e-06
2.158621.6464681.366394e-06
2.168671.6463021.407552e-06
2.178751.6461361.448902e-06
2.188891.6459681.490443e-06
2.199071.6457991.532178e-06
2.21.6457831.536000e-06
2.20931.6456281.588231e-06
2.219571.6454571.645968e-06
2.22991.6452831.703973e-06
2.240271.6451091.762248e-06
2.250691.6449321.820794e-06
2.261161.6447551.879612e-06
2.271671.6445761.938704e-06
2.282241.6443951.998071e-06
2.292861.6442132.057714e-06
2.303521.6440292.117634e-06
2.314241.6438442.177833e-06
2.3251.6436572.238313e-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
—