Optical constants

Refractive index of S-LAH60V (OHARA)

S-LAH60V: 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
1.834
Extinction coefficient k
1.87414e-08
Permittivity ε1
3.36354
Permittivity ε2
6.87434e-08
Absorption coefficient α
0.00400803 cm⁻¹
Penetration depth δ = λ/(2πk)
4.98998e+09 nm
Abbe number Vd
37.207
Chromatic dispersion dn/dλ
-0.113818 µm⁻¹
Group index ng
1.90087
Group velocity dispersion
219.654 fs²/mm
Dispersion parameter D
-1198.33 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-LAH60V (OHARA): S-LAH60V
ohara_s_lah60v = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-LAH60V", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_lah60v.range_nm)  # (365.015, 2325.42) nm
eps = ohara_s_lah60v.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=2.05081962λ2λ2−0.0116035991+0.208475257λ2λ2−0.0526489359+1.31486394λ2λ2−99.38065

Valid from 0.365015 to 2.32542 µm.

Coefficients as stored
CiValue
C10.0
C22.05081962
C30.0116035991
C40.208475257
C50.0526489359
C61.31486394
C799.38065

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 8.6e-06 1.11e-08 -1.86e-11 8.29e-07 9.24e-10 0.257
nd
1.833999
Vd
37.206855
density
value: 4430
thermal expansion
value: 5.8e-06, temperature range: 243 343
dPgF
-0.0006
resistance
acid: 51.2; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 7.10e-06 K⁻¹ at 633 nm, dn/dT = 5.69e-06 K⁻¹ at 1310 nm, dn/dT = 5.57e-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-LAH60V (OHARA), S-LAH60V: n and k versus wavelength
λ (µm)nk
0.3650151.8945652.546861e-06
0.3667131.8934922.208514e-06
0.3684191.8924371.868593e-06
0.371.8914761.553500e-06
0.3701331.8913971.543386e-06
0.3718541.8903731.411991e-06
0.3735841.8893641.279986e-06
0.3753221.8883711.147366e-06
0.3770681.8873921.014129e-06
0.3788221.8864288.802728e-07
0.381.8857917.903500e-07
0.3805841.8854787.715344e-07
0.3823541.8845427.144811e-07
0.3841331.883626.571625e-07
0.385921.882715.995773e-07
0.3877151.8818145.417242e-07
0.3895181.880934.836019e-07
0.391.8806974.680800e-07
0.391331.8800594.462130e-07
0.3931511.8792014.162902e-07
0.3949791.8783543.862282e-07
0.3968171.8775183.560263e-07
0.3986631.8766953.256840e-07
0.41.8761073.037000e-07
0.4005171.8758823.001897e-07
0.402381.8750812.875412e-07
0.4042521.8742912.748340e-07
0.4061321.8735112.620676e-07
0.4080221.8727412.492418e-07
0.409921.8719822.363564e-07
0.4118261.8712332.234110e-07
0.4137421.8704942.104054e-07
0.4156671.8697641.973393e-07
0.41761.8690441.842125e-07
0.4195431.8683341.710246e-07
0.421.8681681.679200e-07
0.4214941.8676321.638824e-07
0.4234551.866941.585847e-07
0.4254251.8662561.532624e-07
0.4274041.8655811.479153e-07
0.4293921.8649151.425433e-07
0.4313891.8642571.371464e-07
0.4333961.8636081.317243e-07
0.4354121.8629661.262770e-07
0.4374371.8623321.208044e-07
0.4394721.8617071.153063e-07
0.441.8615461.138800e-07
0.4415161.8610891.111361e-07
0.443571.8604781.074197e-07
0.4456341.8598751.036861e-07
0.4477061.859289.993510e-08
0.4497891.8586929.616665e-08
0.4518811.858119.238068e-08
0.4539831.8575368.857710e-08
0.4560951.8569698.475582e-08
0.4582171.8564088.091677e-08
0.461.8559447.769000e-08
0.4603481.8558547.727497e-08
0.462491.8553077.472285e-08
0.4646411.8547667.215887e-08
0.4668021.8542316.958296e-08
0.4689741.8537036.699507e-08
0.4711551.8531816.439513e-08
0.4733471.8526656.178311e-08
0.4755491.8521555.915893e-08
0.4777611.8516515.652255e-08
0.4799831.8511525.387390e-08
0.481.8511495.385400e-08
0.4822161.850665.187265e-08
0.4844591.8501734.986708e-08
0.4867131.8496914.785218e-08
0.4889771.8492154.582791e-08
0.4912511.8487444.379422e-08
0.4935361.8482794.175107e-08
0.4958321.8478193.969842e-08
0.4981391.8473643.763622e-08
0.51.8470023.597200e-08
0.5004561.8469143.580398e-08
0.5027841.8464693.494589e-08
0.5051231.8460293.408381e-08
0.5074721.8455943.321772e-08
0.5098331.8451643.234761e-08
0.5122041.8447383.147344e-08
0.5145871.8443173.059521e-08
0.5169811.84392.971289e-08
0.5193861.8434892.882647e-08
0.5218021.8430812.793593e-08
0.5242291.8426782.704124e-08
0.5266671.8422792.614240e-08
0.5291171.8418852.523937e-08
0.5315791.8414952.433214e-08
0.5340511.8411092.342069e-08
0.5365361.8407272.250500e-08
0.5390311.8403492.158505e-08
0.5415391.8399752.066082e-08
0.5440581.8396051.973229e-08
0.5465891.8392391.879945e-08
0.5491311.8388761.786226e-08
0.551.8387541.754200e-08
0.5516861.8385181.759577e-08
0.5542521.8381631.767763e-08
0.556831.8378121.775988e-08
0.559421.8374651.784250e-08
0.5620221.8371211.792552e-08
0.5646371.836781.800891e-08
0.5672631.8364431.809270e-08
0.5699021.836111.817687e-08
0.5725531.835781.826144e-08
0.5752161.8354531.834640e-08
0.5778921.835131.843176e-08
0.580581.8348091.851751e-08
0.5832811.8344921.860366e-08
0.5859941.8341791.869021e-08
0.588721.8338681.877717e-08
0.5914591.833561.886453e-08
0.594211.8332561.895229e-08
0.5969741.8329541.904047e-08
0.5997511.8326561.912905e-08
0.61.8326291.913700e-08
0.6025411.832361.921805e-08
0.6053441.8320681.930746e-08
0.6081591.8317781.939728e-08
0.6109881.8314911.948753e-08
0.613831.8312061.957819e-08
0.6166861.8309251.966928e-08
0.6195541.8306461.976079e-08
0.6224361.830371.985272e-08
0.6253321.8300961.994508e-08
0.6282411.8298262.003788e-08
0.6311631.8295572.013110e-08
0.6340991.8292922.022476e-08
0.6370491.8290282.031885e-08
0.6400121.8287672.041338e-08
0.6429891.8285092.050835e-08
0.645981.8282532.060376e-08
0.6489851.8282.069962e-08
0.651.8279152.073200e-08
0.6520041.8277482.057185e-08
0.6550371.82752.032946e-08
0.6580841.8272532.008594e-08
0.6611451.8270091.984129e-08
0.664221.8267671.959551e-08
0.667311.8265271.934857e-08
0.6704141.8262891.910049e-08
0.6735331.8260531.885126e-08
0.6766661.825821.860086e-08
0.6798141.8255891.834930e-08
0.6829761.8253591.809658e-08
0.6861531.8251321.784267e-08
0.6893451.8249071.758758e-08
0.6925511.8246841.733131e-08
0.6957731.8244621.707385e-08
0.6990091.8242431.681519e-08
0.71.8241761.673600e-08
0.7022611.8240251.650164e-08
0.7055271.823811.616299e-08
0.7088091.8235961.582277e-08
0.7121061.8233841.548097e-08
0.7154191.8231741.513758e-08
0.7187471.8229661.479259e-08
0.722091.822761.444599e-08
0.7254491.8225551.409778e-08
0.7288241.8223521.374796e-08
0.7322141.822151.339650e-08
0.735621.8219511.304341e-08
0.7390421.8217531.268868e-08
0.742481.8215561.233230e-08
0.7459331.8213621.197426e-08
0.7494031.8211691.161455e-08
0.7528891.8209771.125318e-08
0.7563921.8207871.089012e-08
0.759911.8205981.052537e-08
0.7634451.8204111.015892e-08
0.7669961.8202269.790775e-09
0.7705641.8200429.420913e-09
0.7741481.8198599.049331e-09
0.777751.8196788.676020e-09
0.7813671.8194988.300973e-09
0.7850021.819327.924181e-09
0.7886541.8191437.545636e-09
0.7923221.8189677.165331e-09
0.7960081.8187936.783256e-09
0.7997111.818626.399404e-09
0.81.8186066.369400e-09
0.8034311.8184486.396714e-09
0.8071681.8182786.426471e-09
0.8109231.8181086.456365e-09
0.8146951.817946.486399e-09
0.8184841.8177746.516573e-09
0.8222921.8176086.546887e-09
0.8261171.8174446.577342e-09
0.829961.8172816.607938e-09
0.833821.8171196.638677e-09
0.8376991.8169586.669559e-09
0.8415961.8167986.700585e-09
0.8455111.8166396.731755e-09
0.8494441.8164826.763070e-09
0.8533951.8163256.794530e-09
0.8573651.816176.826137e-09
0.8613531.8160166.857891e-09
0.865361.8158626.889793e-09
0.8693851.815716.921843e-09
0.8734291.8155596.954042e-09
0.8774921.8154086.986391e-09
0.8815741.8152597.018890e-09
0.8856751.815117.051541e-09
0.8897941.8149637.084343e-09
0.8939331.8148167.117298e-09
0.8980921.8146717.150407e-09
0.91.8146047.165600e-09
0.9022691.8145267.183667e-09
0.9064661.8143827.217080e-09
0.9106831.8142397.250648e-09
0.9149191.8140977.284372e-09
0.9191751.8139557.318254e-09
0.9234511.8138157.352293e-09
0.9277471.8136757.386490e-09
0.9320621.8135367.420846e-09
0.9363981.8133987.455362e-09
0.9407541.813267.490039e-09
0.945131.8131247.524877e-09
0.9495261.8129887.559877e-09
0.9539431.8128527.595040e-09
0.958381.8127187.630367e-09
0.9628391.8125847.665857e-09
0.9673171.8124517.701513e-09
0.9718171.8123187.737335e-09
0.9763381.8121877.773323e-09
0.9808791.8120557.809479e-09
0.9854421.8119257.845803e-09
0.9900261.8117957.882296e-09
0.9946311.8116667.918959e-09
0.9992581.8115377.955792e-09
11.8115177.961700e-09
1.003911.8114097.992800e-09
1.008581.8112818.029982e-09
1.013271.8111548.067336e-09
1.017981.8110288.104864e-09
1.022721.8109028.142567e-09
1.027471.8107778.180445e-09
1.032251.8106528.218499e-09
1.037051.8105278.256730e-09
1.041881.8104038.295139e-09
1.046731.810288.333727e-09
1.051591.8101578.372494e-09
1.056491.8100348.411442e-09
1.06141.8099128.450571e-09
1.066341.8097918.489881e-09
1.07131.8096698.529375e-09
1.076281.8095488.569052e-09
1.081291.8094288.608914e-09
1.086321.8093088.648962e-09
1.091371.8091888.689195e-09
1.096451.8090698.729616e-09
1.101551.808958.770225e-09
1.106671.8088318.811022e-09
1.111821.8087138.852010e-09
1.116991.8085958.893188e-09
1.122191.8084778.934558e-09
1.127411.8083598.976120e-09
1.132651.8082429.017875e-09
1.137921.8081259.059825e-09
1.143211.8080099.101970e-09
1.148531.8078929.144311e-09
1.153871.8077769.186848e-09
1.159241.807669.229584e-09
1.164631.8075449.272519e-09
1.170051.8074299.315653e-09
1.175491.8073139.358988e-09
1.180961.8071989.402524e-09
1.186461.8070839.446263e-09
1.191981.8069689.490205e-09
1.197521.8068539.534352e-09
1.21.8068029.554100e-09
1.203091.8067391.009642e-08
1.208691.8066241.107855e-08
1.214311.806511.206526e-08
1.219961.8063961.305655e-08
1.225631.8062811.405246e-08
1.231331.8061671.505300e-08
1.237061.8060531.605819e-08
1.242821.8059391.706806e-08
1.24861.8058251.808262e-08
1.254411.8057111.910191e-08
1.260241.8055982.012594e-08
1.26611.8054842.115473e-08
1.271991.805372.218830e-08
1.277911.8052562.322669e-08
1.283851.8051422.426990e-08
1.289831.8050282.531797e-08
1.295831.8049142.637091e-08
1.301851.80482.742875e-08
1.307911.8046862.849151e-08
1.313991.8045722.955921e-08
1.320111.8044583.063189e-08
1.326251.8043443.170955e-08
1.332421.8042293.279222e-08
1.338611.8041153.387993e-08
1.344841.8043.497270e-08
1.35111.8038853.607055e-08
1.357381.803773.717351e-08
1.363691.8036553.828160e-08
1.370041.803543.939485e-08
1.376411.8034244.051327e-08
1.382811.8033094.163689e-08
1.389251.8031934.276575e-08
1.395711.8030774.389985e-08
1.41.8034.465300e-08
1.40221.8029614.514584e-08
1.408721.8028444.660647e-08
1.415281.8027274.807390e-08
1.421861.802614.954816e-08
1.428471.8024935.102928e-08
1.435121.8023765.251728e-08
1.441791.8022585.401221e-08
1.44851.802145.551409e-08
1.455241.8020215.702295e-08
1.462011.8019025.853884e-08
1.468811.8017836.006178e-08
1.475641.8016646.159180e-08
1.482511.8015446.312893e-08
1.48941.8014246.467322e-08
1.496331.8013036.622469e-08
1.503291.8011826.778338e-08
1.510281.8010616.934932e-08
1.517311.8009397.092255e-08
1.524371.8008177.250309e-08
1.531461.8006947.409098e-08
1.538581.8005717.568626e-08
1.545741.8004477.728896e-08
1.552931.8003237.889912e-08
1.560151.8001988.051676e-08
1.567411.8000738.214194e-08
1.57471.7999488.377467e-08
1.582031.7998228.541499e-08
1.589391.7996958.706295e-08
1.596781.7995688.871857e-08
1.61.7995128.944000e-08
1.604211.799449.241791e-08
1.611671.7993129.770119e-08
1.619171.7991831.030090e-07
1.62671.7990531.083416e-07
1.634261.7989231.136989e-07
1.641871.7987921.190812e-07
1.64951.7986611.244885e-07
1.657181.7985291.299210e-07
1.664891.7983961.353787e-07
1.672631.7982621.408618e-07
1.680411.7981281.463704e-07
1.688231.7979931.519047e-07
1.696081.7978581.574647e-07
1.703971.7977211.630505e-07
1.71191.7975841.686624e-07
1.719861.7974471.743003e-07
1.727861.7973081.799645e-07
1.73591.7971691.856550e-07
1.743971.7970281.913720e-07
1.752081.7968871.971156e-07
1.760231.7967462.028859e-07
1.768421.7966032.086830e-07
1.776651.7964592.145071e-07
1.784911.7963152.203583e-07
1.793221.796172.262367e-07
1.81.7960512.310400e-07
1.801561.7960232.341706e-07
1.809941.7958762.510187e-07
1.818361.7957282.679452e-07
1.826821.7955792.849504e-07
1.835311.7954293.020348e-07
1.843851.7952783.191986e-07
1.852431.7951263.364422e-07
1.861041.7949733.537661e-07
1.86971.7948193.711705e-07
1.87841.7946643.886559e-07
1.887141.7945084.062226e-07
1.895911.7943514.238711e-07
1.904731.7941924.416016e-07
1.913591.7940334.594146e-07
1.92251.7938724.773105e-07
1.931441.793714.952896e-07
1.940421.7935485.133524e-07
1.949451.7933845.314992e-07
1.958521.7932185.497304e-07
1.967631.7930525.680464e-07
1.976781.7928845.864476e-07
1.985981.7927156.049343e-07
1.995211.7925456.235071e-07
21.7924566.331300e-07
2.004491.7923736.581759e-07
2.013821.7922017.101340e-07
2.023191.7920267.623338e-07
2.03261.7918518.147764e-07
2.042051.7916748.674630e-07
2.051551.7914969.203946e-07
2.061091.7913169.735725e-07
2.070681.7911351.026998e-06
2.080311.7909521.080671e-06
2.089991.7907681.134595e-06
2.099711.7905831.188769e-06
2.109481.7903961.243195e-06
2.119291.7902081.297875e-06
2.129151.7900171.352809e-06
2.139061.7898261.407998e-06
2.149011.7896331.463444e-06
2.1591.7894381.519148e-06
2.169051.7892411.575111e-06
2.179141.7890431.631334e-06
2.189271.7888441.687819e-06
2.199461.7886421.744567e-06
2.21.7886311.747600e-06
2.209691.7884391.966833e-06
2.219971.7882342.199462e-06
2.230291.7880272.433173e-06
2.240671.7878192.667971e-06
2.251091.7876082.903861e-06
2.261561.7873963.140849e-06
2.272081.7871823.378939e-06
2.282651.7869663.618137e-06
2.293271.7867483.858447e-06
2.303941.7865284.099875e-06
2.314651.7863074.342426e-06
2.325421.7860834.586105e-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
—