Optical constants

Refractive index of H-LAF10LA (CDGM)

H-LAF10LA: 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. Note: k data cover 310-2400 nm only; k = 0 elsewhere in the n range 302-2325 nm.

At one wavelength

Range 0.302–2.325 µm
Refractive index n
1.788
Extinction coefficient k
1.98319e-08
Permittivity ε1
3.19693
Permittivity ε2
7.09187e-08
Absorption coefficient α
0.00424123 cm⁻¹
Penetration depth δ = λ/(2πk)
4.71561e+09 nm
Abbe number Vd
47.492
Chromatic dispersion dn/dλ
-0.0852343 µm⁻¹
Group index ng
1.83808
Group velocity dispersion
154.494 fs²/mm
Dispersion parameter D
-842.848 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-LAF10LA (CDGM): H-LAF10LA
cdgm_h_laf10la = ls.fetch_refractiveindex("specs", "CDGM-optical", "H-LAF10LA", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdgm_h_laf10la.range_nm)  # (302, 2325) nm
eps = cdgm_h_laf10la.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=1.93178403λ2λ2−0.00997340769+0.189897276λ2λ2−0.0368891042+1.09736515λ2λ2−77.2777489

Valid from 0.302 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.93178403
C30.00997340769
C40.189897276
C50.0368891042
C61.09736515
C777.2777489

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 1.87e-06 1.68e-08 -3.95e-11 5.95e-07 4.28e-10 0.194
nd
1.788000
Vd
47.491731
glass code
788475
glass status
standard
density
value: 4300
thermal expansion
value: 6.1e-06, temperature range: 243 343; value: 7.7e-06, temperature range: 293 573
dPgF
-0.0097
resistance
climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 2.15e-06 K⁻¹ at 633 nm, dn/dT = 1.33e-06 K⁻¹ at 1310 nm, dn/dT = 1.26e-06 K⁻¹ at 1550 nm
Notes on the source data (kept exactly as published):
  • k data cover 310-2400 nm only; k = 0 elsewhere in the n range 302-2325 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 431 wavelengths, the same grid as the API and the library
H-LAF10LA (CDGM), H-LAF10LA: n and k versus wavelength
λ (µm)nk
0.3021.8672280
0.3035491.8659130
0.3051061.864620
0.306671.8633480
0.3082431.8620970
0.3098241.8608670
0.311.8607328.820500e-06
0.3114131.8596578.149771e-06
0.313011.8584667.391571e-06
0.3146151.8572956.629482e-06
0.3162291.8561425.863485e-06
0.317851.8550075.093559e-06
0.3194811.853894.319685e-06
0.321.8535394.073100e-06
0.3211191.8527913.844221e-06
0.3227661.8517083.507387e-06
0.3244211.8506423.168827e-06
0.3260851.8495932.828530e-06
0.3277571.8485592.486488e-06
0.3294381.8475412.142692e-06
0.331.8472052.027800e-06
0.3311281.8465381.931024e-06
0.3328261.845551.785302e-06
0.3345331.8445771.638833e-06
0.3362491.8436181.491612e-06
0.3379731.8426731.343637e-06
0.3397061.8417421.194902e-06
0.341.8415861.169700e-06
0.3414481.8408241.104146e-06
0.34321.8399191.024895e-06
0.344961.8390289.452379e-07
0.3467291.8381498.651724e-07
0.3485071.8372827.846962e-07
0.351.8365687.171300e-07
0.3502941.8364287.090334e-07
0.3520911.8355866.596227e-07
0.3538971.8347566.099586e-07
0.3557121.8339375.600399e-07
0.3575361.8331295.098651e-07
0.3593691.8323334.594330e-07
0.361.8320624.420900e-07
0.3612121.8315474.225486e-07
0.3630651.8307723.926922e-07
0.3649271.8300083.626826e-07
0.3667981.8292543.325191e-07
0.368681.828513.022009e-07
0.371.8279962.809200e-07
0.370571.8277762.755693e-07
0.3724711.8270522.577409e-07
0.3743811.8263382.398211e-07
0.3763011.8256332.218094e-07
0.3782311.8249372.037053e-07
0.381.824311.871100e-07
0.3801711.824251.861889e-07
0.382121.8235731.756702e-07
0.384081.8229041.650976e-07
0.386051.8222441.544707e-07
0.388031.8215921.437894e-07
0.391.8209551.331600e-07
0.390021.8209491.330949e-07
0.392021.8203141.265101e-07
0.394031.8196871.198916e-07
0.3960511.8190681.132392e-07
0.3980821.8184571.065526e-07
0.41.8178911.002400e-07
0.4001241.8178541.000160e-07
0.4021761.8172599.630939e-08
0.4042391.816679.258378e-08
0.4063121.816098.883906e-08
0.4083961.8155168.507514e-08
0.410491.8149498.129191e-08
0.4125951.814397.748928e-08
0.4147111.8138387.366715e-08
0.4168381.8132926.982541e-08
0.4189761.8127536.596398e-08
0.421.8124986.411400e-08
0.4211251.812226.348454e-08
0.4232841.8116946.227562e-08
0.4254551.8111756.106050e-08
0.4276371.8106625.983915e-08
0.429831.8101545.861154e-08
0.4320351.8096535.737764e-08
0.434251.8091585.613740e-08
0.4364771.8086695.489080e-08
0.4387161.8081865.363781e-08
0.441.8079135.291900e-08
0.4409661.8077095.196166e-08
0.4432271.8072374.971995e-08
0.44551.8067714.746674e-08
0.4477851.806314.520197e-08
0.4500821.8058554.292560e-08
0.452391.8054054.063754e-08
0.454711.804963.833775e-08
0.4570421.804523.602617e-08
0.4593861.8040863.370274e-08
0.461.8039733.309400e-08
0.4617421.8036563.288384e-08
0.464111.8032323.259814e-08
0.466491.8028123.231097e-08
0.4688831.8023973.202233e-08
0.4712871.8019873.173220e-08
0.4737041.8015823.144059e-08
0.4761341.8011813.114748e-08
0.4785751.8007853.085287e-08
0.481.8005573.068100e-08
0.481031.8003933.033416e-08
0.4834971.8000062.950328e-08
0.4859761.7996232.866815e-08
0.4884691.7992442.782873e-08
0.4909741.798872.698500e-08
0.4934921.79852.613695e-08
0.4960231.7981342.528455e-08
0.4985671.7977722.442778e-08
0.51.797572.394500e-08
0.5011231.7974142.389993e-08
0.5036931.7970592.379682e-08
0.5062771.7967092.369318e-08
0.5088731.7963632.358901e-08
0.5114831.796022.348431e-08
0.5141061.7956812.337906e-08
0.5167431.7953462.327328e-08
0.5193931.7950152.316696e-08
0.5220561.7946872.306009e-08
0.5247341.7943622.295268e-08
0.5274251.7940412.284471e-08
0.530131.7937242.273619e-08
0.5328491.793412.262711e-08
0.5355811.7930992.251747e-08
0.5383281.7927912.240728e-08
0.5410891.7924872.229651e-08
0.5438641.7921862.218518e-08
0.5466531.7918882.207328e-08
0.5494571.7915942.196080e-08
0.551.7915372.193900e-08
0.5522751.7913022.181153e-08
0.5551071.7910132.165281e-08
0.5579541.7907282.149327e-08
0.5608151.7904452.133291e-08
0.5636911.7901652.117173e-08
0.5665821.7898882.100973e-08
0.5694881.7896142.084689e-08
0.5724091.7893432.068322e-08
0.5753441.7890752.051871e-08
0.5782951.7888092.035335e-08
0.5812611.7885462.018715e-08
0.5842421.7882852.002009e-08
0.5872381.7880281.985218e-08
0.590251.7877721.968341e-08
0.5932771.787521.951377e-08
0.5963191.787271.934326e-08
0.5993781.7870221.917188e-08
0.61.7869721.913700e-08
0.6024521.7867771.896068e-08
0.6055411.7865341.873847e-08
0.6086471.7862931.851512e-08
0.6117681.7860551.829063e-08
0.6149061.7858191.806498e-08
0.6180591.7855861.783818e-08
0.6212291.7853541.761021e-08
0.6244151.7851251.738108e-08
0.6276171.7848991.715077e-08
0.6308361.7846741.691927e-08
0.6340711.7844511.668659e-08
0.6373231.7842311.645272e-08
0.6405921.7840121.621765e-08
0.6438771.7837961.598137e-08
0.6471791.7835821.574388e-08
0.651.7834011.554100e-08
0.6504981.7833691.549727e-08
0.6538341.7831591.520443e-08
0.6571871.782951.491009e-08
0.6605581.7827441.461424e-08
0.6639451.7825391.431687e-08
0.6673511.7823361.401797e-08
0.6707731.7821351.371754e-08
0.6742131.7819361.341557e-08
0.6776711.7817381.311205e-08
0.6811461.7815431.280698e-08
0.684641.7813491.250034e-08
0.6881511.7811561.219213e-08
0.691681.7809661.188234e-08
0.6952271.7807771.157095e-08
0.6987931.7805891.125798e-08
0.71.7805271.115200e-08
0.7023761.7804041.118986e-08
0.7059791.780221.124724e-08
0.7095991.7800371.130492e-08
0.7132381.7798561.136289e-08
0.7168961.7796761.142116e-08
0.7205731.7794981.147973e-08
0.7242681.7793221.153860e-08
0.7279831.7791471.159777e-08
0.7317161.7789731.165724e-08
0.7354691.7788011.171702e-08
0.7392411.778631.177711e-08
0.7430321.778461.183750e-08
0.7468431.7782921.189820e-08
0.7506731.7781251.195922e-08
0.7545231.7779591.202055e-08
0.7583921.7777951.208219e-08
0.7622821.7776321.214415e-08
0.7661911.777471.220642e-08
0.770121.777311.226902e-08
0.774071.777151.233194e-08
0.778041.7769921.239517e-08
0.782031.7768351.245874e-08
0.7860411.7766791.252263e-08
0.7900721.7765241.258685e-08
0.7941241.7763711.265139e-08
0.7981961.7762181.271627e-08
0.81.7761511.274500e-08
0.802291.7760671.278150e-08
0.8064051.7759161.284709e-08
0.810541.7757671.291301e-08
0.8146971.7756181.297927e-08
0.8188751.7754711.304587e-08
0.8230751.7753241.311281e-08
0.8272961.7751791.318010e-08
0.8315391.7750341.324773e-08
0.8358031.7748911.331571e-08
0.840091.7747481.338403e-08
0.8443981.7746061.345271e-08
0.8487291.7744651.352174e-08
0.851.7744241.354200e-08
0.8530821.7743251.359106e-08
0.8574571.7741861.366071e-08
0.8618541.7740481.373072e-08
0.8662741.773911.380108e-08
0.8707171.7737741.387181e-08
0.8751821.7736381.394290e-08
0.8796711.7735021.401436e-08
0.8841821.7733681.408618e-08
0.8887171.7732341.415837e-08
0.8932741.7731011.423093e-08
0.8978561.7729691.430386e-08
0.91.7729071.433800e-08
0.902461.7728371.437722e-08
0.9070881.7727061.445099e-08
0.9117411.7725761.452514e-08
0.9164161.7724461.459968e-08
0.9211161.7723171.467459e-08
0.925841.7721891.474989e-08
0.9305881.7720611.482558e-08
0.9353611.7719341.490165e-08
0.9401581.7718071.497812e-08
0.944981.7716811.505497e-08
0.9498261.7715561.513222e-08
0.951.7715511.513500e-08
0.9546971.7714311.520978e-08
0.9595931.7713061.528772e-08
0.9645151.7711821.536607e-08
0.9694611.7710581.544482e-08
0.9744331.7709351.552397e-08
0.979431.7708131.560353e-08
0.9844531.7706911.568350e-08
0.9895021.7705691.576387e-08
0.9945771.7704471.584466e-08
0.9996781.7703261.592587e-08
11.7703191.593100e-08
1.00481.7702061.600755e-08
1.009961.7700861.608966e-08
1.015141.7699661.617219e-08
1.020341.7698461.625514e-08
1.025581.7697271.633851e-08
1.030841.7696081.642232e-08
1.036121.769491.650655e-08
1.041441.7693721.659122e-08
1.046781.7692541.667632e-08
1.052151.7691361.676185e-08
1.057541.7690181.684783e-08
1.061.7689651.688700e-08
1.062971.7689011.693425e-08
1.068421.7687841.702113e-08
1.07391.7686671.710844e-08
1.07941.7685511.719621e-08
1.084941.7684341.728443e-08
1.09051.7683181.737309e-08
1.09611.7682021.746222e-08
1.101721.7680861.755180e-08
1.107371.767971.764184e-08
1.113051.7678541.773234e-08
1.118761.7677381.782330e-08
1.124491.7676231.791474e-08
1.130261.7675071.800664e-08
1.136061.7673921.809901e-08
1.141881.7672771.819185e-08
1.147741.7671611.828518e-08
1.153621.7670461.837898e-08
1.159541.7669311.847326e-08
1.165491.7668151.856802e-08
1.171471.76671.866328e-08
1.177471.7665851.875902e-08
1.183511.7664691.885525e-08
1.189581.7663541.895197e-08
1.195681.7662381.904919e-08
1.21.7661571.911800e-08
1.201811.7661231.934963e-08
1.207981.7660072.013655e-08
1.214171.7658912.092752e-08
1.22041.7657752.172254e-08
1.226661.7656592.252164e-08
1.232951.7655432.332483e-08
1.239271.7654272.413215e-08
1.245631.765312.494360e-08
1.252021.7651932.575922e-08
1.258441.7650762.657902e-08
1.264891.7649592.740302e-08
1.271381.7648422.823125e-08
1.27791.7647242.906373e-08
1.284451.7646062.990047e-08
1.291041.7644883.074151e-08
1.297661.7643693.158686e-08
1.304321.7642513.243655e-08
1.311011.7641313.329059e-08
1.317731.7640123.414902e-08
1.324491.7638923.501184e-08
1.331281.7637723.587910e-08
1.338111.7636523.675080e-08
1.344971.7635313.762697e-08
1.351871.763413.850763e-08
1.35881.7632883.939281e-08
1.365771.7631664.028253e-08
1.372771.7630434.117681e-08
1.379811.762924.207568e-08
1.386891.7627974.297916e-08
1.3941.7626734.388727e-08
1.41.7625684.465300e-08
1.401151.7625484.476338e-08
1.408341.7624234.545211e-08
1.415561.7622984.614437e-08
1.422821.7621724.684017e-08
1.430121.7620454.753955e-08
1.437451.7619184.824251e-08
1.444821.761794.894908e-08
1.452231.7616624.965927e-08
1.459681.7615335.037311e-08
1.467171.7614035.109060e-08
1.474691.7612735.181178e-08
1.482251.7611425.253665e-08
1.489861.761015.326524e-08
1.49751.7608785.399757e-08
1.505181.7607455.473365e-08
1.51291.7606115.547351e-08
1.520651.7604775.621716e-08
1.528451.7603415.696463e-08
1.536291.7602055.771593e-08
1.544171.7600695.847108e-08
1.552091.7599315.923011e-08
1.560051.7597925.999303e-08
1.568051.7596536.075986e-08
1.576091.7595136.153062e-08
1.584181.7593726.230534e-08
1.59231.759236.308403e-08
1.61.7590956.382200e-08
1.600471.7590876.411033e-08
1.608671.7589436.918321e-08
1.616921.7587987.428211e-08
1.625221.7586527.940716e-08
1.633551.7585068.455849e-08
1.641931.7583588.973624e-08
1.650351.7582099.494055e-08
1.658811.7580591.001715e-07
1.667321.7579081.054294e-07
1.675871.7577561.107142e-07
1.684471.7576031.160260e-07
1.693111.7574491.213652e-07
1.701791.7572941.267317e-07
1.710521.7571371.321257e-07
1.719291.7569791.375474e-07
1.728111.756821.429969e-07
1.736971.756661.484744e-07
1.745881.7564991.539799e-07
1.754831.7563361.595137e-07
1.763831.7561721.650759e-07
1.772881.7560071.706666e-07
1.781971.755841.762859e-07
1.791111.7556731.819341e-07
1.81.7555091.874300e-07
1.800291.7555031.880350e-07
1.809531.7553332.070828e-07
1.818811.7551612.262283e-07
1.828131.7549872.454720e-07
1.837511.7548122.648143e-07
1.846931.7546352.842559e-07
1.856411.7544573.037971e-07
1.865931.7542783.234386e-07
1.87551.7540973.431808e-07
1.885111.7539143.630243e-07
1.894781.753733.829695e-07
1.90451.7535444.030170e-07
1.914271.7533564.231674e-07
1.924081.7531674.434210e-07
1.933951.7529764.637786e-07
1.943871.7527834.842405e-07
1.953841.7525895.048074e-07
1.963861.7523935.254798e-07
1.973931.7521955.462582e-07
1.984051.7519955.671431e-07
1.994231.7517935.881352e-07
21.7516786.000400e-07
2.004461.7515896.277746e-07
2.014741.7513846.917443e-07
2.025071.7511767.560421e-07
2.035461.7509668.206696e-07
2.045891.7507558.856285e-07
2.056391.7505419.509206e-07
2.066931.7503251.016548e-06
2.077531.7501081.082511e-06
2.088191.7498881.148813e-06
2.09891.7496651.215455e-06
2.109661.7494411.282438e-06
2.120481.7492141.349766e-06
2.131361.7489861.417438e-06
2.142291.7487541.485457e-06
2.153271.7485211.553826e-06
2.164321.7482851.622545e-06
2.175421.7480471.691616e-06
2.186571.7478061.761042e-06
2.197791.7475631.830823e-06
2.21.7475151.844600e-06
2.209061.7473172.098459e-06
2.220391.7470692.415987e-06
2.231771.7468182.735145e-06
2.243221.7465643.055939e-06
2.254721.7463083.378378e-06
2.266291.7460493.702471e-06
2.277911.7457884.028225e-06
2.289591.7455234.355651e-06
2.301331.7452564.684756e-06
2.313141.7449865.015548e-06
2.3251.7447135.348038e-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
—