Optical constants

Refractive index of S-NBH52V (OHARA)

S-NBH52V: 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
1.673
Extinction coefficient k
9.36134e-09
Permittivity ε1
2.79892
Permittivity ε2
3.13230e-08
Absorption coefficient α
0.00200201 cm⁻¹
Penetration depth δ = λ/(2πk)
9.98996e+09 nm
Abbe number Vd
38.256
Chromatic dispersion dn/dλ
-0.0895401 µm⁻¹
Group index ng
1.72561
Group velocity dispersion
169.982 fs²/mm
Dispersion parameter D
-927.34 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-NBH52V (OHARA): S-NBH52V
ohara_s_nbh52v = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-NBH52V", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_nbh52v.range_nm)  # (365.015, 2325.42) nm
eps = ohara_s_nbh52v.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=1.51336868λ2λ2−0.00987077827+0.212341478λ2λ2−0.0462843662+1.54149143λ2λ2−126.97851

Valid from 0.365015 to 2.32542 µm.

Coefficients as stored
CiValue
C10.0
C21.51336868
C30.00987077827
C40.212341478
C50.0462843662
C61.54149143
C7126.97851

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 1.73e-06 7.81e-09 -1.96e-11 7.27e-07 8.31e-10 0.248
nd
1.673000
Vd
38.256077
density
value: 3010
thermal expansion
value: 7.7e-06, temperature range: 243 343
dPgF
-0.0039
resistance
acid: 1.0; climatic: 1.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 2.07e-06 K⁻¹ at 633 nm, dn/dT = 1.13e-06 K⁻¹ at 1310 nm, dn/dT = 1.06e-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-NBH52V (OHARA), S-NBH52V: n and k versus wavelength
λ (µm)nk
0.3650151.7199451.870758e-07
0.3667131.7191261.684834e-07
0.3684191.718321.498045e-07
0.371.7175861.324900e-07
0.3701331.7175251.317899e-07
0.3718541.7167421.226944e-07
0.3735841.715971.135567e-07
0.3753221.715211.043765e-07
0.3770681.714469.515351e-08
0.3788221.7137218.588766e-08
0.381.7132327.966300e-08
0.3805841.7129927.811873e-08
0.3823541.7122747.343614e-08
0.3841331.7115656.873177e-08
0.385921.7108666.400551e-08
0.3877151.7101775.925727e-08
0.3895181.7094985.448695e-08
0.391.7093185.321300e-08
0.391331.7088275.124619e-08
0.3931511.7081664.855481e-08
0.3949791.7075144.585092e-08
0.3968171.706874.313444e-08
0.3986631.7062354.040533e-08
0.41.7057833.842800e-08
0.4005171.7056093.812857e-08
0.402381.7049913.704966e-08
0.4042521.7043813.596573e-08
0.4061321.7037793.487676e-08
0.4080221.7031843.378273e-08
0.409921.7025983.268361e-08
0.4118261.7020193.157937e-08
0.4137421.7014473.047000e-08
0.4156671.7008832.935546e-08
0.41761.7003262.823574e-08
0.4195431.6997762.711082e-08
0.421.6996482.684600e-08
0.4214941.6992332.667789e-08
0.4234551.6986962.645732e-08
0.4254251.6981672.623572e-08
0.4274041.6976442.601309e-08
0.4293921.6971272.578942e-08
0.4313891.6966172.556471e-08
0.4333961.6961132.533896e-08
0.4354121.6956152.511216e-08
0.4374371.6951242.488430e-08
0.4394721.6946382.465539e-08
0.441.6945132.459600e-08
0.4415161.6941582.412235e-08
0.443571.6936842.348085e-08
0.4456341.6932162.283636e-08
0.4477061.6927532.218888e-08
0.4497891.6922962.153838e-08
0.4518811.6918442.088486e-08
0.4539831.6913982.022830e-08
0.4560951.6909561.956868e-08
0.4582171.690521.890599e-08
0.461.6901591.834900e-08
0.4603481.6900891.829608e-08
0.462491.6896631.797070e-08
0.4646411.6892421.764380e-08
0.4668021.6888261.731538e-08
0.4689741.6884151.698544e-08
0.4711551.6880081.665395e-08
0.4733471.6876061.632093e-08
0.4755491.6872081.598636e-08
0.4777611.6868151.565023e-08
0.4799831.6864271.531254e-08
0.481.6864241.531000e-08
0.4822161.6860431.493826e-08
0.4844591.6856631.456198e-08
0.4867131.6852871.418395e-08
0.4889771.6849161.380415e-08
0.4912511.6845491.342260e-08
0.4935361.6841851.303926e-08
0.4958321.6838261.265415e-08
0.4981391.6834711.226724e-08
0.51.6831881.195500e-08
0.5004561.6831191.192589e-08
0.5027841.6827721.177724e-08
0.5051231.6824281.162790e-08
0.5074721.6820881.147787e-08
0.5098331.6817521.132713e-08
0.5122041.6814191.117570e-08
0.5145871.681091.102356e-08
0.5169811.6807641.087071e-08
0.5193861.6804421.071715e-08
0.5218021.6801231.056288e-08
0.5242291.6798081.040789e-08
0.5266671.6794961.025218e-08
0.5291171.6791871.009574e-08
0.5315791.6788819.938582e-09
0.5340511.6785799.780688e-09
0.5365361.678289.622059e-09
0.5390311.6779849.462693e-09
0.5415391.6776919.302585e-09
0.5440581.6774019.141733e-09
0.5465891.6771148.980132e-09
0.5491311.676838.817780e-09
0.551.6767348.762300e-09
0.5516861.6765498.789154e-09
0.5542521.676278.830040e-09
0.556831.6759958.871116e-09
0.559421.6757228.912383e-09
0.5620221.6754528.953841e-09
0.5646371.6751858.995493e-09
0.5672631.674929.037339e-09
0.5699021.6746599.079379e-09
0.5725531.6743999.121615e-09
0.5752161.6741429.164047e-09
0.5778921.6738889.206677e-09
0.580581.6736379.249505e-09
0.5832811.6733879.292532e-09
0.5859941.6731419.335759e-09
0.588721.6728969.379187e-09
0.5914591.6726549.422818e-09
0.594211.6724149.466651e-09
0.5969741.6721779.510688e-09
0.5997511.6719429.554931e-09
0.61.6719219.558900e-09
0.6025411.6717099.599353e-09
0.6053441.6714799.643980e-09
0.6081591.671259.688814e-09
0.6109881.6710249.733857e-09
0.613831.67089.779109e-09
0.6166861.6705789.824572e-09
0.6195541.6703589.870246e-09
0.6224361.670149.916133e-09
0.6253321.6699249.962233e-09
0.6282411.669711.000855e-08
0.6311631.6694981.005508e-08
0.6340991.6692881.010182e-08
0.6370491.669081.014879e-08
0.6400121.6688741.019597e-08
0.6429891.668671.024337e-08
0.645981.6684671.029099e-08
0.6489851.6682671.033884e-08
0.651.66821.035500e-08
0.6520041.6680681.016336e-08
0.6550371.6678719.873305e-09
0.6580841.6676769.581900e-09
0.6611451.6674829.289140e-09
0.664221.667298.995017e-09
0.667311.66718.699527e-09
0.6704141.6669118.402662e-09
0.6735331.6667258.104416e-09
0.6766661.6665397.804782e-09
0.6798141.6663567.503755e-09
0.6829761.6661747.201328e-09
0.6861531.6659936.897493e-09
0.6893451.6658146.592246e-09
0.6925511.6656376.285578e-09
0.6957731.665465.977484e-09
0.6990091.6652865.667957e-09
0.71.6652335.573200e-09
0.7022611.6651135.591200e-09
0.7055271.6649415.617210e-09
0.7088091.6647715.643340e-09
0.7121061.6646025.669592e-09
0.7154191.6644355.695966e-09
0.7187471.6642695.722463e-09
0.722091.6641045.749083e-09
0.7254491.663945.775827e-09
0.7288241.6637785.802695e-09
0.7322141.6636175.829688e-09
0.735621.6634585.856807e-09
0.7390421.6632995.884052e-09
0.742481.6631425.911423e-09
0.7459331.6629865.938922e-09
0.7494031.6628325.966549e-09
0.7528891.6626785.994305e-09
0.7563921.6625266.022189e-09
0.759911.6623746.050203e-09
0.7634451.6622246.078348e-09
0.7669961.6620756.106623e-09
0.7705641.6619276.135030e-09
0.7741481.6617816.163570e-09
0.777751.6616356.192242e-09
0.7813671.661496.221047e-09
0.7850021.6613476.249986e-09
0.7886541.6612046.279060e-09
0.7923221.6610626.308269e-09
0.7960081.6609226.337614e-09
0.7997111.6607826.367096e-09
0.81.6607716.369400e-09
0.8034311.6606436.396714e-09
0.8071681.6605066.426471e-09
0.8109231.6603696.456365e-09
0.8146951.6602336.486399e-09
0.8184841.6600986.516573e-09
0.8222921.6599646.546887e-09
0.8261171.6598316.577342e-09
0.829961.6596996.607938e-09
0.833821.6595676.638677e-09
0.8376991.6594366.669559e-09
0.8415961.6593076.700585e-09
0.8455111.6591786.731755e-09
0.8494441.6590496.763070e-09
0.8533951.6589226.794530e-09
0.8573651.6587956.826137e-09
0.8613531.6586696.857891e-09
0.865361.6585446.889793e-09
0.8693851.658426.921843e-09
0.8734291.6582966.954042e-09
0.8774921.6581736.986391e-09
0.8815741.6580517.018890e-09
0.8856751.6579297.051541e-09
0.8897941.6578087.084343e-09
0.8939331.6576887.117298e-09
0.8980921.6575687.150407e-09
0.91.6575147.165600e-09
0.9022691.6574497.183667e-09
0.9064661.6573317.217080e-09
0.9106831.6572137.250648e-09
0.9149191.6570967.284372e-09
0.9191751.656987.318254e-09
0.9234511.6568647.352293e-09
0.9277471.6567487.386490e-09
0.9320621.6566337.420846e-09
0.9363981.6565197.455362e-09
0.9407541.6564057.490039e-09
0.945131.6562927.524877e-09
0.9495261.6561797.559877e-09
0.9539431.6560677.595040e-09
0.958381.6559557.630367e-09
0.9628391.6558447.665857e-09
0.9673171.6557337.701513e-09
0.9718171.6556237.737335e-09
0.9763381.6555137.773323e-09
0.9808791.6554037.809479e-09
0.9854421.6552947.845803e-09
0.9900261.6551857.882296e-09
0.9946311.6550777.918959e-09
0.9992581.6549697.955792e-09
11.6549527.961700e-09
1.003911.6548627.992800e-09
1.008581.6547558.029982e-09
1.013271.6546488.067336e-09
1.017981.6545418.104864e-09
1.022721.6544358.142567e-09
1.027471.654338.180445e-09
1.032251.6542248.218499e-09
1.037051.6541198.256730e-09
1.041881.6540148.295139e-09
1.046731.653918.333727e-09
1.051591.6538068.372494e-09
1.056491.6537028.411442e-09
1.06141.6535988.450571e-09
1.066341.6534948.489881e-09
1.07131.6533918.529375e-09
1.076281.6532888.569052e-09
1.081291.6531868.608914e-09
1.086321.6530838.648962e-09
1.091371.6529818.689195e-09
1.096451.6528788.729616e-09
1.101551.6527778.770225e-09
1.106671.6526758.811022e-09
1.111821.6525738.852010e-09
1.116991.6524728.893188e-09
1.122191.652378.934558e-09
1.127411.6522698.976120e-09
1.132651.6521689.017875e-09
1.137921.6520679.059825e-09
1.143211.6519669.101970e-09
1.148531.6518659.144311e-09
1.153871.6517659.186848e-09
1.159241.6516649.229584e-09
1.164631.6515649.272519e-09
1.170051.6514639.315653e-09
1.175491.6513639.358988e-09
1.180961.6512629.402524e-09
1.186461.6511629.446263e-09
1.191981.6510629.490205e-09
1.197521.6509619.534352e-09
1.21.6509179.554100e-09
1.203091.6508611.078912e-08
1.208691.6507611.302575e-08
1.214311.650661.527278e-08
1.219961.650561.753026e-08
1.225631.6504591.979824e-08
1.231331.6503592.207677e-08
1.237061.6502582.436590e-08
1.242821.6501582.666568e-08
1.24861.6500572.897615e-08
1.254411.6499573.129738e-08
1.260241.6498563.362940e-08
1.26611.6497553.597227e-08
1.271991.6496543.832603e-08
1.277911.6495534.069075e-08
1.283851.6494514.306647e-08
1.289831.649354.545323e-08
1.295831.6492484.785110e-08
1.301851.6491475.026013e-08
1.307911.6490455.268036e-08
1.313991.6489435.511185e-08
1.320111.648845.755465e-08
1.326251.6487386.000881e-08
1.332421.6486356.247438e-08
1.338611.6485326.495143e-08
1.344841.6484296.744000e-08
1.35111.6483266.994015e-08
1.357381.6482227.245192e-08
1.363691.6481187.497538e-08
1.370041.6480147.751058e-08
1.376411.647918.005757e-08
1.382811.6478058.261641e-08
1.389251.64778.518715e-08
1.395711.6475958.776985e-08
1.41.6475258.948500e-08
1.40221.6474898.948450e-08
1.408721.6473838.948304e-08
1.415281.6472778.948156e-08
1.421861.6471718.948008e-08
1.428471.6470648.947859e-08
1.435121.6469568.947710e-08
1.441791.6468498.947560e-08
1.44851.646748.947409e-08
1.455241.6466328.947257e-08
1.462011.6465238.947105e-08
1.468811.6464148.946952e-08
1.475641.6463048.946798e-08
1.482511.6461948.946644e-08
1.48941.6460838.946488e-08
1.496331.6459728.946333e-08
1.503291.6458618.946176e-08
1.510281.6457498.946019e-08
1.517311.6456368.945861e-08
1.524371.6455238.945702e-08
1.531461.645418.945542e-08
1.538581.6452968.945382e-08
1.545741.6451818.945221e-08
1.552931.6450668.945059e-08
1.560151.644958.944897e-08
1.567411.6448348.944733e-08
1.57471.6447178.944569e-08
1.582031.64468.944404e-08
1.589391.6444828.944239e-08
1.596781.6443638.944072e-08
1.61.6443128.944000e-08
1.604211.6442449.180614e-08
1.611671.6441249.600403e-08
1.619171.6440041.002214e-07
1.62671.6438821.044585e-07
1.634261.6437611.087152e-07
1.641871.6436381.129918e-07
1.64951.6435151.172882e-07
1.657181.6433911.216046e-07
1.664891.6432661.259412e-07
1.672631.6431411.302978e-07
1.680411.6430151.346748e-07
1.688231.6428881.390721e-07
1.696081.642761.434898e-07
1.703971.6426321.479281e-07
1.71191.6425031.523871e-07
1.719861.6423731.568668e-07
1.727861.6422421.613673e-07
1.73591.642111.658888e-07
1.743971.6419781.704313e-07
1.752081.6418441.749949e-07
1.760231.641711.795798e-07
1.768421.6415751.841860e-07
1.776651.6414391.888136e-07
1.784911.6413021.934627e-07
1.793221.6411641.981335e-07
1.81.6410512.019500e-07
1.801561.6410252.037694e-07
1.809941.6408862.135609e-07
1.818361.6407452.233980e-07
1.826821.6406032.332808e-07
1.835311.6404612.432096e-07
1.843851.6403172.531845e-07
1.852431.6401722.632059e-07
1.861041.6400262.732739e-07
1.86971.639882.833887e-07
1.87841.6397322.935506e-07
1.887141.6395833.037597e-07
1.895911.6394333.140164e-07
1.904731.6392823.243207e-07
1.913591.6391293.346730e-07
1.92251.6389763.450734e-07
1.931441.6388213.555222e-07
1.940421.6386663.660196e-07
1.949451.6385093.765659e-07
1.958521.638353.871612e-07
1.967631.6381913.978058e-07
1.976781.638034.084999e-07
1.985981.6378684.192437e-07
1.995211.6377054.300375e-07
21.6376214.356300e-07
2.004491.6375414.577903e-07
2.013821.6373755.037622e-07
2.023191.6372085.499480e-07
2.03261.637045.963486e-07
2.042051.636876.429651e-07
2.051551.6366996.897984e-07
2.061091.6365267.368495e-07
2.070681.6363527.841195e-07
2.080311.6361778.316094e-07
2.089991.6368.793202e-07
2.099711.6358219.272530e-07
2.109481.6356429.754087e-07
2.119291.635461.023788e-06
2.129151.6352771.072393e-06
2.139061.6350931.121224e-06
2.149011.6349071.170282e-06
2.1591.6347191.219568e-06
2.169051.634531.269084e-06
2.179141.6343391.318829e-06
2.189271.6341471.368807e-06
2.199461.6339531.419016e-06
2.21.6339431.421700e-06
2.209691.6337571.536412e-06
2.219971.633561.658133e-06
2.230291.633361.780420e-06
2.240671.6331591.903276e-06
2.251091.6329562.026704e-06
2.261561.6327522.150706e-06
2.272081.6325452.275284e-06
2.282651.6323372.400442e-06
2.293271.6321272.526183e-06
2.303941.6319152.652508e-06
2.314651.6317012.779420e-06
2.325421.6314852.906924e-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
—