Optical constants

Refractive index of S-NBH53V (OHARA)

S-NBH53V: 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
1.73799
Extinction coefficient k
1.04495e-08
Permittivity ε1
3.02063
Permittivity ε2
3.63223e-08
Absorption coefficient α
0.00223472 cm⁻¹
Penetration depth δ = λ/(2πk)
8.94966e+09 nm
Abbe number Vd
32.327
Chromatic dispersion dn/dλ
-0.115452 µm⁻¹
Group index ng
1.80583
Group velocity dispersion
226.733 fs²/mm
Dispersion parameter D
-1236.95 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-NBH53V (OHARA): S-NBH53V
ohara_s_nbh53v = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-NBH53V", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_nbh53v.range_nm)  # (365.015, 2325.42) nm
eps = ohara_s_nbh53v.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=1.65444141λ2λ2−0.0112485533+0.267453927λ2λ2−0.052027274+2.14530347λ2λ2−167.3661

Valid from 0.365015 to 2.32542 µm.

Coefficients as stored
CiValue
C10.0
C21.65444141
C30.0112485533
C40.267453927
C50.052027274
C62.14530347
C7167.3661

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 3.11e-06 7.32e-09 -1.52e-11 8.38e-07 1.06e-09 0.264
nd
1.737999
Vd
32.326590
density
value: 3190
thermal expansion
value: 7.1e-06, temperature range: 243 343
dPgF
0.0008
resistance
acid: 1.0; climatic: 2.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 3.26e-06 K⁻¹ at 633 nm, dn/dT = 2.03e-06 K⁻¹ at 1310 nm, dn/dT = 1.94e-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-NBH53V (OHARA), S-NBH53V: n and k versus wavelength
λ (µm)nk
0.3650151.8011365.253917e-07
0.3667131.7999874.746404e-07
0.3684191.7988584.236531e-07
0.371.7978313.763900e-07
0.3701331.7977463.744395e-07
0.3718541.7966533.491007e-07
0.3735841.7955773.236440e-07
0.3753221.7945182.980689e-07
0.3770681.7934762.723748e-07
0.3788221.792452.465612e-07
0.381.7917722.292200e-07
0.3805841.791442.247501e-07
0.3823541.7904452.111962e-07
0.3841331.7894661.975793e-07
0.385921.7885021.838991e-07
0.3877151.7875521.701553e-07
0.3895181.7866171.563475e-07
0.391.786371.526600e-07
0.391331.7856951.461230e-07
0.3931511.7847871.371779e-07
0.3949791.7838931.281911e-07
0.3968171.7830111.191625e-07
0.3986631.7821421.100919e-07
0.41.7815231.035200e-07
0.4005171.7812861.024132e-07
0.402381.7804429.842519e-08
0.4042521.7796119.441863e-08
0.4061321.778799.039343e-08
0.4080221.7779828.634951e-08
0.409921.7771858.228677e-08
0.4118261.7763997.820514e-08
0.4137421.7756247.410452e-08
0.4156671.7748596.998482e-08
0.41761.7741056.584597e-08
0.4195431.7733626.168786e-08
0.421.7731886.070900e-08
0.4214941.7726285.933142e-08
0.4234551.7719045.752389e-08
0.4254251.771195.570795e-08
0.4274041.7704865.388356e-08
0.4293921.7697915.205069e-08
0.4313891.7691055.020929e-08
0.4333961.7684284.835933e-08
0.4354121.767764.650076e-08
0.4374371.7671014.463355e-08
0.4394721.766454.275765e-08
0.441.7662834.227100e-08
0.4415161.7658074.157520e-08
0.443571.7651734.063281e-08
0.4456341.7645473.968605e-08
0.4477061.7639293.873487e-08
0.4497891.7633193.777928e-08
0.4518811.7627163.681924e-08
0.4539831.7621213.585473e-08
0.4560951.7615343.488574e-08
0.4582171.7609543.391224e-08
0.461.7604743.309400e-08
0.4603481.7603813.298497e-08
0.462491.7598153.231450e-08
0.4646411.7592563.164091e-08
0.4668021.7587043.096418e-08
0.4689741.7581583.028431e-08
0.4711551.757622.960128e-08
0.4733471.7570872.891507e-08
0.4755491.7565612.822567e-08
0.4777611.7560422.753306e-08
0.4799831.7555292.683723e-08
0.481.7555252.683200e-08
0.4822161.7550212.606880e-08
0.4844591.754522.529627e-08
0.4867131.7540252.452015e-08
0.4889771.7535352.374042e-08
0.4912511.7530522.295706e-08
0.4935361.7525742.217005e-08
0.4958321.7521012.137939e-08
0.4981391.7516342.058504e-08
0.51.7512631.994400e-08
0.5004561.7511721.988206e-08
0.5027841.7507161.956574e-08
0.5051231.7502651.924794e-08
0.5074721.7498191.892867e-08
0.5098331.7493781.860791e-08
0.5122041.7489421.828566e-08
0.5145871.7485111.796191e-08
0.5169811.7480851.763666e-08
0.5193861.7476641.730989e-08
0.5218021.7472471.698160e-08
0.5242291.7468351.665178e-08
0.5266671.7464281.632043e-08
0.5291171.7460251.598754e-08
0.5315791.7456261.565310e-08
0.5340511.7452321.531711e-08
0.5365361.7448431.497955e-08
0.5390311.7444571.464042e-08
0.5415391.7440761.429972e-08
0.5440581.7436991.395743e-08
0.5465891.7433261.361354e-08
0.5491311.7429571.326806e-08
0.551.7428321.315000e-08
0.5516861.7425911.302894e-08
0.5542521.742231.284463e-08
0.556831.7418731.265946e-08
0.559421.7415191.247342e-08
0.5620221.7411691.228652e-08
0.5646371.7408231.209876e-08
0.5672631.7404811.191012e-08
0.5699021.7401421.172060e-08
0.5725531.7398071.153020e-08
0.5752161.7394751.133891e-08
0.5778921.7391461.114673e-08
0.580581.7388211.095366e-08
0.5832811.7384991.075970e-08
0.5859941.7381811.056483e-08
0.588721.7378661.036905e-08
0.5914591.7375541.017236e-08
0.594211.7372459.974761e-09
0.5969741.736949.776239e-09
0.5997511.7366379.576794e-09
0.61.736619.558900e-09
0.6025411.7363389.599353e-09
0.6053441.7360419.643980e-09
0.6081591.7357489.688814e-09
0.6109881.7354579.733857e-09
0.613831.7351699.779109e-09
0.6166861.7348849.824572e-09
0.6195541.7346029.870246e-09
0.6224361.7343239.916133e-09
0.6253321.7340479.962233e-09
0.6282411.7337731.000855e-08
0.6311631.7335011.005508e-08
0.6340991.7332331.010182e-08
0.6370491.7329671.014879e-08
0.6400121.7327031.019597e-08
0.6429891.7324421.024337e-08
0.645981.7321841.029099e-08
0.6489851.7319281.033884e-08
0.651.7318421.035500e-08
0.6520041.7316751.016336e-08
0.6550371.7314239.873305e-09
0.6580841.7311759.581900e-09
0.6611451.7309289.289140e-09
0.664221.7306848.995017e-09
0.667311.7304428.699527e-09
0.6704141.7302028.402662e-09
0.6735331.7299658.104416e-09
0.6766661.7297297.804782e-09
0.6798141.7294967.503755e-09
0.6829761.7292657.201328e-09
0.6861531.7290366.897493e-09
0.6893451.7288096.592246e-09
0.6925511.7285856.285578e-09
0.6957731.7283625.977484e-09
0.6990091.7281415.667957e-09
0.71.7280745.573200e-09
0.7022611.7279225.591200e-09
0.7055271.7277055.617210e-09
0.7088091.727495.643340e-09
0.7121061.7272775.669592e-09
0.7154191.7270655.695966e-09
0.7187471.7268565.722463e-09
0.722091.7266485.749083e-09
0.7254491.7264425.775827e-09
0.7288241.7262385.802695e-09
0.7322141.7260365.829688e-09
0.735621.7258355.856807e-09
0.7390421.7256365.884052e-09
0.742481.7254395.911423e-09
0.7459331.7252435.938922e-09
0.7494031.7250495.966549e-09
0.7528891.7248565.994305e-09
0.7563921.7246656.022189e-09
0.759911.7244766.050203e-09
0.7634451.7242886.078348e-09
0.7669961.7241026.106623e-09
0.7705641.7239176.135030e-09
0.7741481.7237346.163570e-09
0.777751.7235526.192242e-09
0.7813671.7233716.221047e-09
0.7850021.7231926.249986e-09
0.7886541.7230156.279060e-09
0.7923221.7228386.308269e-09
0.7960081.7226636.337614e-09
0.7997111.722496.367096e-09
0.81.7224766.369400e-09
0.8034311.7223176.396714e-09
0.8071681.7221466.426471e-09
0.8109231.7219776.456365e-09
0.8146951.7218086.486399e-09
0.8184841.7216416.516573e-09
0.8222921.7214756.546887e-09
0.8261171.721316.577342e-09
0.829961.7211476.607938e-09
0.833821.7209846.638677e-09
0.8376991.7208236.669559e-09
0.8415961.7206636.700585e-09
0.8455111.7205046.731755e-09
0.8494441.7203466.763070e-09
0.8533951.7201896.794530e-09
0.8573651.7200336.826137e-09
0.8613531.7198786.857891e-09
0.865361.7197256.889793e-09
0.8693851.7195726.921843e-09
0.8734291.719426.954042e-09
0.8774921.719276.986391e-09
0.8815741.719127.018890e-09
0.8856751.7189717.051541e-09
0.8897941.7188237.084343e-09
0.8939331.7186777.117298e-09
0.8980921.7185317.150407e-09
0.91.7184647.165600e-09
0.9022691.7183867.183667e-09
0.9064661.7182417.217080e-09
0.9106831.7180987.250648e-09
0.9149191.7179567.284372e-09
0.9191751.7178147.318254e-09
0.9234511.7176737.352293e-09
0.9277471.7175337.386490e-09
0.9320621.7173947.420846e-09
0.9363981.7172567.455362e-09
0.9407541.7171187.490039e-09
0.945131.7169817.524877e-09
0.9495261.7168457.559877e-09
0.9539431.716717.595040e-09
0.958381.7165757.630367e-09
0.9628391.7164417.665857e-09
0.9673171.7163087.701513e-09
0.9718171.7161757.737335e-09
0.9763381.7160437.773323e-09
0.9808791.7159127.809479e-09
0.9854421.7157817.845803e-09
0.9900261.7156517.882296e-09
0.9946311.7155217.918959e-09
0.9992581.7153927.955792e-09
11.7153727.961700e-09
1.003911.7152647.992800e-09
1.008581.7151368.029982e-09
1.013271.7150098.067336e-09
1.017981.7148838.104864e-09
1.022721.7147578.142567e-09
1.027471.7146318.180445e-09
1.032251.7145068.218499e-09
1.037051.7143818.256730e-09
1.041881.7142578.295139e-09
1.046731.7141348.333727e-09
1.051591.7140118.372494e-09
1.056491.7138888.411442e-09
1.06141.7137668.450571e-09
1.066341.7136448.489881e-09
1.07131.7135228.529375e-09
1.076281.7134018.569052e-09
1.081291.7132818.608914e-09
1.086321.713168.648962e-09
1.091371.7130418.689195e-09
1.096451.7129218.729616e-09
1.101551.7128028.770225e-09
1.106671.7126838.811022e-09
1.111821.7125648.852010e-09
1.116991.7124468.893188e-09
1.122191.7123288.934558e-09
1.127411.7122118.976120e-09
1.132651.7120939.017875e-09
1.137921.7119769.059825e-09
1.143211.7118599.101970e-09
1.148531.7117439.144311e-09
1.153871.7116269.186848e-09
1.159241.711519.229584e-09
1.164631.7113949.272519e-09
1.170051.7112799.315653e-09
1.175491.7111639.358988e-09
1.180961.7110489.402524e-09
1.186461.7109329.446263e-09
1.191981.7108179.490205e-09
1.197521.7107039.534352e-09
1.21.7106519.554100e-09
1.203091.7105881.026933e-08
1.208691.7104731.156461e-08
1.214311.7103591.286592e-08
1.219961.7102441.417328e-08
1.225631.710131.548672e-08
1.231331.7100151.680628e-08
1.237061.7099011.813197e-08
1.242821.7097871.946382e-08
1.24861.7096732.080188e-08
1.254411.7095592.214615e-08
1.260241.7094452.349668e-08
1.26611.7093312.485349e-08
1.271991.7092172.621662e-08
1.277911.7091032.758608e-08
1.283851.7089892.896191e-08
1.289831.7088753.034415e-08
1.295831.7087613.173281e-08
1.301851.7086473.312794e-08
1.307911.7085323.452955e-08
1.313991.7084183.593768e-08
1.320111.7083043.735237e-08
1.326251.7081893.877363e-08
1.332421.7080754.020151e-08
1.338611.707964.163602e-08
1.344841.7078454.307721e-08
1.35111.707734.452511e-08
1.357381.7076154.597974e-08
1.363691.70754.744113e-08
1.370041.7073854.890933e-08
1.376411.7072695.038435e-08
1.382811.7071535.186623e-08
1.389251.7070375.335501e-08
1.395711.7069215.485071e-08
1.41.7068445.584400e-08
1.40221.7068055.593179e-08
1.408721.7066885.619198e-08
1.415281.7065715.645337e-08
1.421861.7064545.671599e-08
1.428471.7063375.697982e-08
1.435121.7062195.724488e-08
1.441791.7061015.751117e-08
1.44851.7059835.777871e-08
1.455241.7058645.804749e-08
1.462011.7057465.831751e-08
1.468811.7056265.858880e-08
1.475641.7055075.886134e-08
1.482511.7053875.913516e-08
1.48941.7052675.941024e-08
1.496331.7051465.968661e-08
1.503291.7050255.996426e-08
1.510281.7049046.024321e-08
1.517311.7047826.052345e-08
1.524371.7046596.080499e-08
1.531461.7045376.108785e-08
1.538581.7044146.137202e-08
1.545741.704296.165751e-08
1.552931.7041666.194433e-08
1.560151.7040426.223249e-08
1.567411.7039176.252198e-08
1.57471.7037916.281282e-08
1.582031.7036656.310502e-08
1.589391.7035386.339857e-08
1.596781.7034116.369349e-08
1.61.7033566.382200e-08
1.604211.7032846.550734e-08
1.611671.7031556.849739e-08
1.619171.7030277.150135e-08
1.62671.7028977.451929e-08
1.634261.7027677.755126e-08
1.641871.7026378.059733e-08
1.64951.7025058.365758e-08
1.657181.7023748.673206e-08
1.664891.7022418.982084e-08
1.672631.7021089.292399e-08
1.680411.7019749.604158e-08
1.688231.701849.917366e-08
1.696081.7017041.023203e-07
1.703971.7015681.054816e-07
1.71191.7014321.086576e-07
1.719861.7012941.118484e-07
1.727861.7011561.150540e-07
1.73591.7010171.182745e-07
1.743971.7008781.215100e-07
1.752081.7007371.247606e-07
1.760231.7005961.280263e-07
1.768421.7004541.313071e-07
1.776651.7003111.346033e-07
1.784911.7001671.379147e-07
1.793221.7000221.412416e-07
1.81.6999041.439600e-07
1.801561.6998771.448379e-07
1.809941.699731.495622e-07
1.818361.6995831.543086e-07
1.826821.6994351.590770e-07
1.835311.6992861.638676e-07
1.843851.6991361.686805e-07
1.852431.6989851.735158e-07
1.861041.6988321.783736e-07
1.86971.6986791.832540e-07
1.87841.6985251.881570e-07
1.887141.698371.930829e-07
1.895911.6982141.980317e-07
1.904731.6980572.030036e-07
1.913591.6978992.079985e-07
1.92251.697742.130167e-07
1.931441.6975792.180582e-07
1.940421.6974182.231232e-07
1.949451.6972552.282117e-07
1.958521.6970912.333239e-07
1.967631.6969262.384599e-07
1.976781.696762.436198e-07
1.985981.6965932.488037e-07
1.995211.6964242.540117e-07
21.6963372.567100e-07
2.004491.6962542.707080e-07
2.013821.6960832.997470e-07
2.023191.6959113.289212e-07
2.03261.6957383.582310e-07
2.042051.6955633.876772e-07
2.051551.6953864.172603e-07
2.061091.6952094.469811e-07
2.070681.695034.768401e-07
2.080311.694855.068380e-07
2.089991.6946685.369754e-07
2.099711.6944855.672531e-07
2.109481.6943015.976715e-07
2.119291.6941156.282315e-07
2.129151.6939276.589336e-07
2.139061.6937396.897786e-07
2.149011.6935487.207670e-07
2.1591.6933567.518996e-07
2.169051.6931637.831770e-07
2.179141.6929688.145999e-07
2.189271.6927728.461689e-07
2.199461.6925738.778848e-07
2.21.6925638.795800e-07
2.209691.6923749.060987e-07
2.219971.6921729.342379e-07
2.230291.6919699.625079e-07
2.240671.6917649.909094e-07
2.251091.6915581.019443e-06
2.261561.691351.048109e-06
2.272081.691141.076909e-06
2.282651.6909281.105843e-06
2.293271.6907151.134911e-06
2.303941.6904991.164115e-06
2.314651.6902821.193454e-06
2.325421.6900631.222930e-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
—