Optical constants

Refractive index of S-LAH63 (OHARA)

S-LAH63: n,k 0.34–2.4 µm

Data
formula 2 + tabulated k
Range
0.34–2.4 µm
Temperature
298 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.34–2.4 µm
Refractive index n
1.80439
Extinction coefficient k
1.04495e-08
Permittivity ε1
3.25584
Permittivity ε2
3.77100e-08
Absorption coefficient α
0.00223472 cm⁻¹
Penetration depth δ = λ/(2πk)
8.94966e+09 nm
Abbe number Vd
39.586
Chromatic dispersion dn/dλ
-0.103535 µm⁻¹
Group index ng
1.86523
Group velocity dispersion
196.185 fs²/mm
Dispersion parameter D
-1070.3 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

# S-LAH63 (OHARA): S-LAH63
ohara_s_lah63 = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-LAH63", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_lah63.range_nm)  # (340, 2400) nm
eps = ohara_s_lah63.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=1.89458276λ2λ2−0.0102277048+0.268702978λ2λ2−0.0442801243+1.45705526λ2λ2−104.874927

Valid from 0.34 to 2.4 µm.

Coefficients as stored
CiValue
C10.0
C21.89458276
C30.0102277048
C40.268702978
C50.0442801243
C61.45705526
C7104.874927

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 6.2e-06 1.43e-08 -3.96e-12 8.21e-07 7.44e-10 0.216
nd
1.804398
Vd
39.586150
glass code
804396
density
value: 4340
thermal expansion
value: 5.8e-06, temperature range: 243 343; value: 7e-06, temperature range: 293 573
dPgF
-0.0045
resistance
acid: 4.2; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 5.30e-06 K⁻¹ at 633 nm, dn/dT = 4.06e-06 K⁻¹ at 1310 nm, dn/dT = 3.96e-06 K⁻¹ at 1550 nm

References

Cite

OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp); See also OHARA 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 424 wavelengths, the same grid as the API and the library
S-LAH63 (OHARA), S-LAH63: n and k versus wavelength
λ (µm)nk
0.341.874147.612100e-06
0.3416691.8729126.885901e-06
0.3433471.8717046.156136e-06
0.3450331.8705175.422788e-06
0.3467271.8693484.685840e-06
0.3484291.8681993.945273e-06
0.351.867163.262000e-06
0.350141.8670683.237483e-06
0.3518591.8659552.936559e-06
0.3535871.864862.634158e-06
0.3553231.8637822.330271e-06
0.3570681.862722.024893e-06
0.3588211.8616751.718015e-06
0.361.8609841.511600e-06
0.3605831.8606471.470614e-06
0.3623531.8596331.346053e-06
0.3641321.8586361.220880e-06
0.365921.8576531.095092e-06
0.3677171.8566859.686873e-07
0.3695221.8557328.416615e-07
0.371.8554838.080400e-07
0.3713361.8547927.610019e-07
0.373161.8538676.968310e-07
0.3749921.8529556.323450e-07
0.3768331.8520565.675423e-07
0.3786831.851175.024215e-07
0.381.850554.560800e-07
0.3805431.8502974.473992e-07
0.3824111.8494374.175097e-07
0.3842891.8485893.874734e-07
0.3861761.8477523.572896e-07
0.3880721.8469283.269576e-07
0.3899771.8461152.964767e-07
0.391.8461052.961100e-07
0.3918921.8453132.792763e-07
0.3938161.8445232.621551e-07
0.395751.8437432.449497e-07
0.3976931.8429742.276599e-07
0.3996451.8422162.102852e-07
0.41.8420792.071300e-07
0.4016081.8414672.000523e-07
0.403581.8407291.913712e-07
0.4055611.8400011.826474e-07
0.4075521.8392831.738807e-07
0.4095531.8385741.650710e-07
0.4115641.8378751.562181e-07
0.4135851.8371841.473217e-07
0.4156161.8365031.383816e-07
0.4176561.8358311.293976e-07
0.4197071.8351681.203695e-07
0.421.8350741.190800e-07
0.4217681.8345131.160728e-07
0.4238391.8338661.125502e-07
0.425921.8332281.090102e-07
0.4280111.8325991.054529e-07
0.4301121.8319771.018781e-07
0.4322241.8313639.828582e-08
0.4343471.8307579.467584e-08
0.4364791.8301589.104815e-08
0.4386221.8295678.740264e-08
0.441.8291938.505900e-08
0.4407761.8289838.419415e-08
0.442941.8284078.178173e-08
0.4451151.8278387.935746e-08
0.44731.8272767.692129e-08
0.4494971.826727.447316e-08
0.4517041.8261727.201301e-08
0.4539211.825636.954078e-08
0.456151.8250956.705641e-08
0.458391.8245676.455984e-08
0.461.8241926.276500e-08
0.4606411.8240446.223174e-08
0.4629021.8235286.034874e-08
0.4651751.8230195.845649e-08
0.4674591.8225155.655496e-08
0.4697541.8220175.464409e-08
0.4720611.8215255.272383e-08
0.4743791.821045.079415e-08
0.4767081.8205594.885500e-08
0.4790481.8200854.690632e-08
0.481.8198944.611400e-08
0.48141.8196164.512285e-08
0.4837641.8191524.344997e-08
0.4861391.8186944.176888e-08
0.4885261.8182414.007953e-08
0.4909251.8177943.838190e-08
0.4933351.8173513.667592e-08
0.4957581.8169143.496157e-08
0.4981921.8164823.323880e-08
0.51.8161653.195900e-08
0.5006381.8160543.171906e-08
0.5030961.8156323.079437e-08
0.5055661.8152142.986514e-08
0.5080481.8148012.893134e-08
0.5105431.8143932.799296e-08
0.513051.8139892.704998e-08
0.5155691.813592.610236e-08
0.51811.8131952.515009e-08
0.5206441.8128052.419315e-08
0.52321.8124192.323150e-08
0.5257691.8120372.226514e-08
0.5283511.8116592.129403e-08
0.5309451.8112862.031815e-08
0.5335521.8109161.933748e-08
0.5361721.8105511.835200e-08
0.5388041.810191.736167e-08
0.541451.8098321.636649e-08
0.5441081.8094781.536642e-08
0.546781.8091291.436143e-08
0.5494641.8087831.335152e-08
0.551.8087141.315000e-08
0.5521621.808441.299471e-08
0.5548731.8081021.279999e-08
0.5575981.8077671.260432e-08
0.5603351.8074351.240769e-08
0.5630871.8071071.221009e-08
0.5658511.8067821.201152e-08
0.568631.8064611.181198e-08
0.5714221.8061431.161146e-08
0.5742271.8058291.140995e-08
0.5770471.8055181.120745e-08
0.579881.805211.100396e-08
0.5827271.8049051.079947e-08
0.5855881.8046031.059397e-08
0.5884641.8043051.038747e-08
0.5913531.8040091.017995e-08
0.5942561.8037179.971417e-09
0.5971741.8034279.761857e-09
0.61.8031519.558900e-09
0.6001061.803149.560592e-09
0.6030531.8028579.607506e-09
0.6060141.8025769.654651e-09
0.6089891.8022989.702026e-09
0.6119791.8020229.749635e-09
0.6149841.801759.797477e-09
0.6180041.801489.845554e-09
0.6210381.8012139.893868e-09
0.6240871.8009489.942418e-09
0.6271521.8006869.991207e-09
0.6302311.8004271.004024e-08
0.6333251.800171.008950e-08
0.6364351.7999151.013902e-08
0.639561.7996631.018877e-08
0.64271.7994141.023877e-08
0.6458561.7991671.028901e-08
0.6490271.7989221.033950e-08
0.651.7988471.035500e-08
0.6522131.7986791.039028e-08
0.6554161.7984391.044133e-08
0.6586341.7982011.049262e-08
0.6618681.7979651.054417e-08
0.6651171.7977321.059597e-08
0.6683831.79751.064803e-08
0.6716651.7972711.070034e-08
0.6749631.7970441.075290e-08
0.6782771.7968191.080573e-08
0.6816071.7965961.085882e-08
0.6849541.7963751.091216e-08
0.6883171.7961561.096577e-08
0.6916961.7959391.101964e-08
0.6950931.7957241.107378e-08
0.6985051.7955111.112818e-08
0.71.7954191.115200e-08
0.7019351.79531.105945e-08
0.7053821.7950911.089462e-08
0.7088451.7948831.072898e-08
0.7123251.7946771.056253e-08
0.7158231.7944741.039526e-08
0.7193371.7942711.022717e-08
0.7228691.7940711.005825e-08
0.7264191.7938729.888503e-09
0.7299851.7936759.717923e-09
0.7335691.793489.546506e-09
0.7371711.7932869.374246e-09
0.7407911.7930949.201141e-09
0.7444281.7929049.027186e-09
0.7480831.7927158.852377e-09
0.7517561.7925278.676709e-09
0.7554471.7923428.500179e-09
0.7591561.7921578.322782e-09
0.7628841.7919748.144515e-09
0.766631.7917937.965371e-09
0.7703941.7916137.785349e-09
0.7741761.7914357.604442e-09
0.7779781.7912587.422647e-09
0.7817971.7910827.239960e-09
0.7856361.7909077.056376e-09
0.7894931.7907346.871890e-09
0.793371.7905636.686498e-09
0.7972651.7903926.500196e-09
0.81.7902746.369400e-09
0.801181.7902236.463406e-09
0.8051131.7900556.776871e-09
0.8090671.7898897.091875e-09
0.8130391.7897237.408426e-09
0.8170311.7895597.726532e-09
0.8210431.7893968.046199e-09
0.8250741.7892348.367436e-09
0.8291251.7890748.690250e-09
0.8331961.7889149.014649e-09
0.8372871.7887559.340641e-09
0.8413981.7885989.668233e-09
0.8455291.7884429.997434e-09
0.8496811.7882871.032825e-08
0.8538531.7881321.066069e-08
0.8580451.7879791.099477e-08
0.8622581.7878271.133048e-08
0.8664921.7876761.166784e-08
0.8707461.7875261.200686e-08
0.8750211.7873761.234755e-08
0.8793181.7872281.268990e-08
0.8836351.7870811.303394e-08
0.8879741.7869341.337967e-08
0.8923341.7867881.372709e-08
0.8967151.7866441.407622e-08
0.91.7865361.433800e-08
0.9011181.78651.444497e-08
0.9055421.7863571.486844e-08
0.9099881.7862151.529398e-08
0.9144561.7860731.572161e-08
0.9189461.7859331.615134e-08
0.9234581.7857931.658319e-08
0.9279921.7856541.701715e-08
0.9325491.7855151.745324e-08
0.9371281.7853781.789148e-08
0.9417291.7852411.833186e-08
0.9463531.7851051.877441e-08
0.9509991.7849691.921913e-08
0.9556691.7848341.966604e-08
0.9603611.78472.011513e-08
0.9650761.7845672.056644e-08
0.9698151.7844342.101996e-08
0.9745761.7843022.147571e-08
0.9793621.784172.193369e-08
0.984171.7840392.239392e-08
0.9890021.7839082.285642e-08
0.9938581.7837792.332118e-08
0.9987381.7836492.378823e-08
11.7836162.390900e-08
1.003641.783522.399608e-08
1.008571.7833922.411390e-08
1.013521.7832642.423231e-08
1.01851.7831372.435129e-08
1.02351.783012.447086e-08
1.028521.7828842.459101e-08
1.033571.7827582.471176e-08
1.038651.7826322.483310e-08
1.043751.7825072.495503e-08
1.048871.7823822.507757e-08
1.054021.7822582.520070e-08
1.05921.7821342.532444e-08
1.06441.7820112.544879e-08
1.069631.7818872.557374e-08
1.074881.7817652.569931e-08
1.080151.7816422.582550e-08
1.085461.781522.595231e-08
1.090791.7813982.607974e-08
1.096141.7812772.620779e-08
1.101531.7811552.633648e-08
1.106931.7810342.646579e-08
1.112371.7809132.659574e-08
1.117831.7807932.672633e-08
1.123321.7806732.685756e-08
1.128831.7805532.698944e-08
1.134381.7804332.712196e-08
1.139951.7803132.725513e-08
1.145541.7801932.738896e-08
1.151171.7800742.752344e-08
1.156821.7799552.765859e-08
1.16251.7798362.779439e-08
1.168211.7797172.793087e-08
1.173941.7795982.806801e-08
1.179711.7794792.820583e-08
1.18551.7793612.834432e-08
1.191321.7792422.848350e-08
1.197171.7791242.862335e-08
1.21.7790672.869100e-08
1.203051.7790052.944665e-08
1.208961.7788873.091065e-08
1.214891.7787693.238184e-08
1.220861.778653.386025e-08
1.226851.7785323.534592e-08
1.232871.7784143.683889e-08
1.238931.7782953.833918e-08
1.245011.7781773.984684e-08
1.251121.7780584.136191e-08
1.257271.777944.288441e-08
1.263441.7778214.441439e-08
1.269641.7777034.595188e-08
1.275881.7775844.749692e-08
1.282141.7774654.904954e-08
1.288441.7773465.060979e-08
1.294761.7772275.217770e-08
1.301121.7771085.375331e-08
1.307511.7769885.533666e-08
1.313931.7768695.692777e-08
1.320381.7767495.852671e-08
1.326861.7766296.013349e-08
1.333381.7765096.174816e-08
1.339931.7763896.337076e-08
1.34651.7762686.500132e-08
1.353121.7761476.663989e-08
1.359761.7760266.828651e-08
1.366441.7759056.994121e-08
1.373141.7757837.160404e-08
1.379891.7756617.327503e-08
1.386661.7755397.495422e-08
1.393471.7754167.664166e-08
1.41.7752997.826000e-08
1.400311.7752937.829749e-08
1.407191.775177.912289e-08
1.41411.7750467.995234e-08
1.421041.7749228.078586e-08
1.428021.7747988.162348e-08
1.435031.7746738.246521e-08
1.442071.7745488.331108e-08
1.449161.7744228.416109e-08
1.456271.7742968.501528e-08
1.463421.7741698.587367e-08
1.470611.7740428.673627e-08
1.477831.7739158.760310e-08
1.485081.7737878.847419e-08
1.492371.7736588.934956e-08
1.49971.7735299.022922e-08
1.507071.7733999.111321e-08
1.514471.7732699.200153e-08
1.52191.7731389.289422e-08
1.529371.7730079.379129e-08
1.536881.7728759.469276e-08
1.544431.7727439.559866e-08
1.552011.772619.650901e-08
1.559631.7724769.742383e-08
1.567291.7723419.834314e-08
1.574991.7722069.926696e-08
1.582721.7720711.001953e-07
1.590491.7719341.011282e-07
1.59831.7717971.020657e-07
1.61.7717671.022700e-07
1.606151.7716591.062272e-07
1.614031.771521.113046e-07
1.621961.7713811.164070e-07
1.629921.7712411.215345e-07
1.637921.77111.266871e-07
1.645971.7709581.318650e-07
1.654051.7708151.370684e-07
1.662171.7706721.422973e-07
1.670331.7705281.475519e-07
1.678531.7703831.528322e-07
1.686771.7702371.581385e-07
1.695051.770091.634709e-07
1.703381.7699421.688294e-07
1.711741.7697931.742143e-07
1.720151.7696431.796255e-07
1.728591.7694931.850634e-07
1.737081.7693411.905279e-07
1.745611.7691881.960193e-07
1.754181.7690352.015377e-07
1.762791.768882.070831e-07
1.771451.7687242.126558e-07
1.780141.7685672.182558e-07
1.788881.7684092.238833e-07
1.797671.768252.295385e-07
1.81.7682082.310400e-07
1.806491.768092.430222e-07
1.815361.7679292.593869e-07
1.824281.7677662.758321e-07
1.833231.7676032.923580e-07
1.842241.7674383.089650e-07
1.851281.7672723.256536e-07
1.860371.7671043.424241e-07
1.869511.7669363.592769e-07
1.878681.7667663.762125e-07
1.887911.7665953.932313e-07
1.897181.7664234.103336e-07
1.906491.7662494.275199e-07
1.915851.7660744.447906e-07
1.925261.7658974.621460e-07
1.934711.7657194.795867e-07
1.944211.765544.971130e-07
1.953761.7653595.147254e-07
1.963351.7651775.324242e-07
1.972991.7649935.502100e-07
1.982681.7648085.680831e-07
1.992411.7646215.860439e-07
21.7644756.000400e-07
2.00221.7644336.158580e-07
2.012031.7642436.866468e-07
2.021911.7640527.577833e-07
2.031831.7638598.292690e-07
2.041811.7636649.011057e-07
2.051841.7634689.732952e-07
2.061911.763271.045839e-06
2.072031.763071.118739e-06
2.082211.7628681.191997e-06
2.092431.7626651.265615e-06
2.10271.762461.339594e-06
2.113031.7622531.413936e-06
2.12341.7620451.488644e-06
2.133831.7618341.563718e-06
2.144311.7616221.639161e-06
2.154831.7614071.714974e-06
2.165411.7611911.791160e-06
2.176051.7609731.867719e-06
2.186731.7607531.944655e-06
2.197471.760532.021968e-06
2.21.7604782.040200e-06
2.208261.7603062.237216e-06
2.21911.760082.495906e-06
2.231.7598512.755866e-06
2.240941.759623.017102e-06
2.251951.7593883.279621e-06
2.2631.7591533.543429e-06
2.274121.7589153.808533e-06
2.285281.7586764.074938e-06
2.29651.7584344.342651e-06
2.307781.758194.611678e-06
2.319111.7579444.882027e-06
2.33051.7576955.153702e-06
2.341941.7574435.426712e-06
2.353441.757195.701062e-06
2.364991.7569335.976760e-06
2.37661.7566756.253811e-06
2.388271.7564146.532222e-06
2.41.756156.812000e-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
—