Optical constants

Refractive index of S-LAH65V (OHARA)

S-LAH65V: n,k 0.365–2.325 µm

Data
formula 2 + tabulated k
Range
0.365–2.325 µm
Temperature
298 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
1.804
Extinction coefficient k
9.36134e-09
Permittivity ε1
3.2544
Permittivity ε2
3.37757e-08
Absorption coefficient α
0.00200201 cm⁻¹
Penetration depth δ = λ/(2πk)
9.98996e+09 nm
Abbe number Vd
46.583
Chromatic dispersion dn/dλ
-0.0885649 µm⁻¹
Group index ng
1.85604
Group velocity dispersion
161.56 fs²/mm
Dispersion parameter D
-881.393 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-LAH65V (OHARA): S-LAH65V
ohara_s_lah65v = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-LAH65V", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_lah65v.range_nm)  # (365, 2325) nm
eps = ohara_s_lah65v.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=1.81419034λ2λ2−0.00874935029+0.361376301λ2λ2−0.0318352836+1.32729484λ2λ2−91.3406898

Valid from 0.365 to 2.325 µm.

Coefficients as stored
CiValue
C10.0
C21.81419034
C30.00874935029
C40.361376301
C50.0318352836
C61.32729484
C791.3406898

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 2.97e-06 1.12e-08 -3.84e-11 6.13e-07 6.3e-10 0.204
nd
1.803999
Vd
46.583432
density
value: 4720
thermal expansion
value: 6e-06, temperature range: 243 343
dPgF
-0.0088
resistance
acid: 4.1; climatic: 3.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 2.91e-06 K⁻¹ at 633 nm, dn/dT = 2.03e-06 K⁻¹ at 1310 nm, dn/dT = 1.96e-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 422 wavelengths, the same grid as the API and the library
S-LAH65V (OHARA), S-LAH65V: n and k versus wavelength
λ (µm)nk
0.3651.8478683.781200e-07
0.3666981.847153.484232e-07
0.3684031.8464413.185883e-07
0.371.8457892.906600e-07
0.3701171.8457412.894868e-07
0.3718381.845052.722146e-07
0.3735681.8443662.548621e-07
0.3753061.8436922.374289e-07
0.3770511.8430252.199146e-07
0.3788051.8423662.023188e-07
0.381.8419241.903300e-07
0.3805671.8417151.869053e-07
0.3823371.8410721.762136e-07
0.3841161.8404371.654722e-07
0.3859021.8398091.546809e-07
0.3876971.8391881.438393e-07
0.38951.8385751.329473e-07
0.391.8384071.299300e-07
0.3913121.8379691.256032e-07
0.3931321.837371.196014e-07
0.3949611.8367791.135716e-07
0.3967981.8361941.075138e-07
0.3986441.8356151.014278e-07
0.41.8351969.695500e-08
0.4004981.8350449.613758e-08
0.4023611.8344799.307869e-08
0.4042321.8339219.000558e-08
0.4061121.8333688.691817e-08
0.4080011.8328238.381640e-08
0.4098991.8322838.070020e-08
0.4118061.831757.756950e-08
0.4137211.8312227.442425e-08
0.4156451.8307017.126436e-08
0.4175791.8301856.808978e-08
0.4195211.8296766.490043e-08
0.421.8295516.411400e-08
0.4214721.8291726.302825e-08
0.4234331.8286736.158265e-08
0.4254021.828186.013032e-08
0.4273811.8276935.867124e-08
0.4293691.8272115.720537e-08
0.4313661.8267345.573268e-08
0.4333721.8262635.425314e-08
0.4353881.8257965.276672e-08
0.4374131.8253355.127339e-08
0.4394481.8248794.977311e-08
0.441.8247564.936600e-08
0.4414921.8244284.842787e-08
0.4435451.8239814.713662e-08
0.4456091.823544.583935e-08
0.4476811.8231034.453606e-08
0.4497641.8226714.322670e-08
0.4518561.8222444.191125e-08
0.4539571.8218214.058968e-08
0.4560691.8214033.926197e-08
0.458191.8209893.792808e-08
0.461.8206413.679000e-08
0.4603211.8205793.663004e-08
0.4624621.8201743.556398e-08
0.4646131.8197733.449297e-08
0.4667751.8193773.341697e-08
0.4689461.8189843.233597e-08
0.4711271.8185963.124994e-08
0.4733181.8182123.015886e-08
0.475521.8178312.906270e-08
0.4777321.8174552.796144e-08
0.4799541.8170832.685507e-08
0.481.8170752.683200e-08
0.4821861.8167142.564222e-08
0.4844291.8163492.442157e-08
0.4866821.8159882.319524e-08
0.4889461.8156312.196322e-08
0.491221.8152772.072546e-08
0.4935051.8149271.948194e-08
0.49581.8145811.823264e-08
0.4981071.8142381.697753e-08
0.51.813961.594700e-08
0.5004231.8138991.588616e-08
0.5027511.8135631.555170e-08
0.5050891.813231.521567e-08
0.5074391.8129011.487809e-08
0.5097991.8125751.453893e-08
0.512171.8122521.419820e-08
0.5145531.8119321.385588e-08
0.5169461.8116161.351197e-08
0.519351.8113031.316646e-08
0.5217661.8109931.281934e-08
0.5241931.8106861.247061e-08
0.5266311.8103821.212026e-08
0.5290811.8100811.176827e-08
0.5315421.8097831.141465e-08
0.5340141.8094871.105939e-08
0.5364981.8091951.070247e-08
0.5389931.8089061.034389e-08
0.54151.8086199.983643e-09
0.5440191.8083359.621721e-09
0.5465491.8080549.258116e-09
0.5490921.8077768.892820e-09
0.551.8076778.762300e-09
0.5516461.80758.788519e-09
0.5542121.8072278.829399e-09
0.5567891.8069568.870469e-09
0.5593791.8066888.911730e-09
0.5619811.8064238.953182e-09
0.5645951.806168.994828e-09
0.5672211.8058999.036667e-09
0.5698591.8056419.078701e-09
0.572511.8053869.120931e-09
0.5751731.8051339.163356e-09
0.5778481.8048829.205980e-09
0.5805361.8046339.248801e-09
0.5832361.8043879.291822e-09
0.5859491.8041439.335042e-09
0.5886751.8039019.378464e-09
0.5914131.8036629.422088e-09
0.5941641.8034249.465915e-09
0.5969271.8031899.509945e-09
0.5997041.8029569.554180e-09
0.61.8029319.558900e-09
0.6024931.8027259.598596e-09
0.6052961.8024969.643216e-09
0.6081111.8022699.688043e-09
0.610941.8020459.733079e-09
0.6137811.8018229.778324e-09
0.6166361.8016019.823780e-09
0.6195041.8013829.869447e-09
0.6223861.8011659.915327e-09
0.6252811.800959.961420e-09
0.6281891.8007371.000773e-08
0.6311111.8005261.005425e-08
0.6340471.8003161.010099e-08
0.6369961.8001091.014795e-08
0.6399591.7999031.019512e-08
0.6429351.7996991.024251e-08
0.6459261.7994971.029013e-08
0.648931.7992961.033797e-08
0.651.7992251.035500e-08
0.6519491.7990971.016865e-08
0.6549811.79899.878640e-09
0.6580281.7987049.587282e-09
0.6610881.798519.294568e-09
0.6641631.7983189.000493e-09
0.6672521.7981278.705050e-09
0.6703561.7979388.408234e-09
0.6734741.797758.110036e-09
0.6766071.7975647.810451e-09
0.6797541.797387.509473e-09
0.6829151.7971977.207095e-09
0.6860921.7970156.903311e-09
0.6892831.7968356.598113e-09
0.6924891.7966566.291496e-09
0.695711.7964795.983453e-09
0.6989461.7963035.673977e-09
0.71.7962465.573200e-09
0.7021971.7961295.590695e-09
0.7054631.7959555.616700e-09
0.7087451.7957845.642826e-09
0.7120411.7956135.669073e-09
0.7153531.7954445.695443e-09
0.7186811.7952765.721935e-09
0.7220231.795115.748551e-09
0.7253821.7949445.775290e-09
0.7287561.794785.802154e-09
0.7321461.7946175.829143e-09
0.7355511.7944565.856257e-09
0.7389721.7942955.883497e-09
0.7424091.7941365.910864e-09
0.7458631.7939785.938358e-09
0.7493321.7938215.965981e-09
0.7528171.7936655.993731e-09
0.7563191.793516.021611e-09
0.7598371.7933576.049621e-09
0.7633711.7932046.077760e-09
0.7669221.7930536.106031e-09
0.7704891.7929026.134433e-09
0.7740731.7927536.162967e-09
0.7776731.7926056.191634e-09
0.781291.7924576.220434e-09
0.7849241.7923116.249369e-09
0.7885751.7921656.278437e-09
0.7922431.7920216.307641e-09
0.7959281.7918776.336981e-09
0.799631.7917356.366458e-09
0.81.7917216.369400e-09
0.803351.7915936.396071e-09
0.8070861.7914526.425822e-09
0.810841.7913136.455712e-09
0.8146121.7911746.485740e-09
0.8184011.7910366.515909e-09
0.8222081.7908986.546217e-09
0.8260321.7907626.576667e-09
0.8298741.7906266.607258e-09
0.8337341.7904916.637991e-09
0.8376121.7903576.668868e-09
0.8415081.7902246.699888e-09
0.8454221.7900926.731052e-09
0.8493551.789966.762361e-09
0.8533051.7898296.793816e-09
0.8572741.7896996.825418e-09
0.8612621.7895696.857166e-09
0.8652681.7894416.889062e-09
0.8692921.7893136.921106e-09
0.8733361.7891856.953299e-09
0.8773981.7890586.985642e-09
0.8814791.7889327.018136e-09
0.8855791.7888077.050780e-09
0.8896981.7886827.083577e-09
0.8938361.7885587.116526e-09
0.8979941.7884347.149628e-09
0.91.7883757.165600e-09
0.9021711.7883117.182882e-09
0.9063671.7881897.216289e-09
0.9105831.7880677.249851e-09
0.9148181.7879467.283569e-09
0.9190731.7878257.317444e-09
0.9233481.7877057.351476e-09
0.9276431.7875857.385667e-09
0.9319581.7874667.420017e-09
0.9362931.7873487.454527e-09
0.9406481.7872297.489197e-09
0.9450231.7871127.524029e-09
0.9494191.7869957.559022e-09
0.9538351.7868787.594178e-09
0.9582711.7867627.629498e-09
0.9627291.7866467.664982e-09
0.9672071.786537.700631e-09
0.9717051.7864157.736446e-09
0.9762251.7863017.772428e-09
0.9807661.7861877.808577e-09
0.9853281.7860737.844894e-09
0.9899111.7859597.881380e-09
0.9945151.7858467.918035e-09
0.9991411.7857347.954861e-09
11.7857137.961700e-09
1.003791.7856217.991863e-09
1.008461.7855098.029037e-09
1.013151.7853988.066384e-09
1.017861.7852868.103905e-09
1.022591.7851758.141600e-09
1.027351.7850648.179471e-09
1.032131.7849548.217518e-09
1.036931.7848438.255741e-09
1.041751.7847338.294143e-09
1.04661.7846248.332723e-09
1.051471.7845148.371483e-09
1.056361.7844058.410423e-09
1.061271.7842968.449544e-09
1.066211.7841878.488847e-09
1.071171.7840788.528333e-09
1.076151.7839698.568002e-09
1.081151.7838618.607856e-09
1.086181.7837538.647895e-09
1.091241.7836458.688121e-09
1.096311.7835378.728534e-09
1.101411.7834298.769134e-09
1.106531.7833228.809924e-09
1.111681.7832148.850903e-09
1.116851.7831078.892073e-09
1.122051.7829998.933434e-09
1.127271.7828928.974988e-09
1.132511.7827859.016735e-09
1.137781.7826789.058676e-09
1.143071.7825719.100813e-09
1.148391.7824649.143145e-09
1.153731.7823579.185674e-09
1.159091.782259.228401e-09
1.164481.7821439.271327e-09
1.16991.7820369.314452e-09
1.175341.7819299.357778e-09
1.180811.7818229.401306e-09
1.18631.7817169.445036e-09
1.191821.7816099.488969e-09
1.197361.7815019.533107e-09
1.21.7814519.554100e-09
1.202931.7813949.904831e-09
1.208531.7812871.057399e-08
1.214151.781181.124626e-08
1.21981.7810731.192166e-08
1.225471.7809651.260020e-08
1.231171.7808581.328190e-08
1.23691.780751.396677e-08
1.242651.7806421.465482e-08
1.248431.7805341.534607e-08
1.254241.7804261.604054e-08
1.260071.7803181.673824e-08
1.265931.780211.743918e-08
1.271821.7801011.814339e-08
1.277741.7799921.885087e-08
1.283681.7798831.956164e-08
1.289651.7797742.027572e-08
1.295651.7796652.099311e-08
1.301671.7795552.171385e-08
1.307731.7794452.243794e-08
1.313811.7793352.316539e-08
1.319921.7792252.389623e-08
1.326061.7791142.463047e-08
1.332231.7790032.536812e-08
1.338431.7788922.610921e-08
1.344651.7787812.685374e-08
1.350911.7786692.760173e-08
1.357191.7785572.835321e-08
1.36351.7784442.910817e-08
1.369851.7783312.986666e-08
1.376221.7782183.062866e-08
1.382621.7781053.139422e-08
1.389051.7779913.216333e-08
1.395511.7778763.293602e-08
1.41.7777973.347300e-08
1.4021.7777623.364868e-08
1.408521.7776473.422120e-08
1.415071.7775313.479639e-08
1.421661.7774153.537426e-08
1.428271.7772993.595481e-08
1.434911.7771823.653806e-08
1.441591.7770643.712403e-08
1.448291.7769463.771272e-08
1.455031.7768283.830415e-08
1.46181.7767093.889833e-08
1.468591.776593.949527e-08
1.475431.776474.009499e-08
1.482291.776354.069750e-08
1.489181.7762294.130281e-08
1.496111.7761074.191094e-08
1.503071.7759854.252190e-08
1.510061.7758624.313570e-08
1.517081.7757394.375235e-08
1.524141.7756154.437187e-08
1.531231.7754914.499428e-08
1.538351.7753664.561957e-08
1.545511.775244.624778e-08
1.55271.7751134.687891e-08
1.559921.7749864.751297e-08
1.567171.7748594.814999e-08
1.574461.774734.878996e-08
1.581791.7746014.943292e-08
1.589141.7744715.007886e-08
1.596541.774345.072781e-08
1.61.7742795.103200e-08
1.603961.7742095.315934e-08
1.611421.7740775.716595e-08
1.618921.7739446.119121e-08
1.626451.773816.523518e-08
1.634011.7736766.929796e-08
1.641611.773547.337965e-08
1.649251.7734047.748031e-08
1.656921.7732678.160005e-08
1.664631.7731298.573896e-08
1.672371.7729918.989711e-08
1.680151.7728519.407461e-08
1.687961.772719.827153e-08
1.695811.7725691.024880e-07
1.70371.7724271.067240e-07
1.711631.7722831.109798e-07
1.719591.7721391.152554e-07
1.727591.7719941.195508e-07
1.735621.7718481.238662e-07
1.743691.7717011.282017e-07
1.751811.7715521.325574e-07
1.759951.7714031.369333e-07
1.768141.7712531.413296e-07
1.776361.7711011.457463e-07
1.784631.7709491.501836e-07
1.792931.7707951.546415e-07
1.81.7706641.584400e-07
1.801271.7706411.608186e-07
1.809641.7704851.765542e-07
1.818061.7703281.923631e-07
1.826521.770172.082455e-07
1.835011.7700112.242018e-07
1.843551.769852.402323e-07
1.852121.7696892.563373e-07
1.860741.7695262.725173e-07
1.869391.7693622.887725e-07
1.878091.7691963.051033e-07
1.886821.769033.215101e-07
1.89561.7688623.379932e-07
1.904421.7686923.545530e-07
1.913281.7685223.711898e-07
1.922181.768353.879040e-07
1.931121.7681764.046959e-07
1.94011.7680024.215660e-07
1.949121.7678264.385145e-07
1.958191.7676484.555418e-07
1.96731.7674694.726483e-07
1.976451.7672884.898344e-07
1.985641.7671065.071005e-07
1.994881.7669235.244468e-07
21.7668215.340700e-07
2.004161.7667385.572767e-07
2.013481.7665516.093414e-07
2.022841.7663636.616482e-07
2.032251.7661737.141984e-07
2.04171.7659827.669930e-07
2.05121.7657898.200331e-07
2.060741.7655948.733200e-07
2.070331.7653989.268547e-07
2.079961.76529.806384e-07
2.089631.7651.034672e-06
2.099351.7647991.088958e-06
2.109121.7645951.143495e-06
2.118931.764391.198287e-06
2.128781.7641841.253333e-06
2.138681.7639751.308635e-06
2.148631.7637641.364195e-06
2.158621.7635521.420013e-06
2.168671.7633371.476090e-06
2.178751.7631211.532429e-06
2.188891.7629031.589029e-06
2.199071.7626821.645893e-06
2.21.7626621.651100e-06
2.20931.762461.916717e-06
2.219571.7622362.210333e-06
2.22991.7620092.505315e-06
2.240271.7617812.801668e-06
2.250691.761553.099400e-06
2.261161.7613183.398517e-06
2.271671.7610833.699025e-06
2.282241.7608454.000931e-06
2.292861.7606064.304241e-06
2.303521.7603644.608962e-06
2.314241.760124.915100e-06
2.3251.7598745.222662e-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
—