Optical constants

Refractive index of S-LAH65VS (OHARA)

S-LAH65VS: 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
4.67830e-09
Permittivity ε1
3.2544
Permittivity ε2
1.68793e-08
Absorption coefficient α
0.0010005 cm⁻¹
Penetration depth δ = λ/(2πk)
1.99901e+10 nm
Abbe number Vd
46.528
Chromatic dispersion dn/dλ
-0.0886412 µm⁻¹
Group index ng
1.85608
Group velocity dispersion
162.361 fs²/mm
Dispersion parameter D
-885.766 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-LAH65VS (OHARA): S-LAH65VS
ohara_s_lah65vs = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-LAH65VS", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_lah65vs.range_nm)  # (365.015, 2325.42) nm
eps = ohara_s_lah65vs.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=1.76068422λ2λ2−0.00853607198+0.414128906λ2λ2−0.0301826383+1.33415439λ2λ2−98.09421

Valid from 0.365015 to 2.32542 µm.

Coefficients as stored
CiValue
C10.0
C21.76068422
C30.00853607198
C40.414128906
C50.0301826383
C61.33415439
C798.09421

Comments and conditions

Recommended

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: 2.45e-06 9.57e-09 -3.91e-13 6.2e-07 6.32e-10 0.215
nd
1.804000
Vd
46.527532
density
value: 4460
thermal expansion
value: 6.1e-06, temperature range: 243 343
dPgF
-0.0085
resistance
acid: 4.0; climatic: 2.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 2.61e-06 K⁻¹ at 633 nm, dn/dT = 1.72e-06 K⁻¹ at 1310 nm, dn/dT = 1.64e-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-LAH65VS (OHARA), S-LAH65VS: n and k versus wavelength
λ (µm)nk
0.3650151.8479222.672408e-07
0.3667131.8472042.446922e-07
0.3684191.8464962.220388e-07
0.371.8458492.010400e-07
0.3701331.8457962.001371e-07
0.3718541.8451041.884069e-07
0.3735841.8444211.766221e-07
0.3753221.8437461.647825e-07
0.3770681.8430791.528878e-07
0.3788221.842421.409378e-07
0.381.8419831.329100e-07
0.3805841.8417691.304825e-07
0.3823541.8411261.231219e-07
0.3841331.840491.157271e-07
0.385921.8398611.082978e-07
0.3877151.8392411.008340e-07
0.3895181.8386279.333553e-08
0.391.8384659.133300e-08
0.391331.8380218.817015e-08
0.3931511.8374218.384210e-08
0.3949791.8368297.949391e-08
0.3968171.8362437.512551e-08
0.3986631.8356647.073678e-08
0.41.8352516.755700e-08
0.4005171.8350926.694110e-08
0.402381.8345276.472190e-08
0.4042521.8339686.249237e-08
0.4061321.8334156.025247e-08
0.4080221.8328685.800215e-08
0.409921.8323285.574136e-08
0.4118261.8317945.347006e-08
0.4137421.8312665.118819e-08
0.4156671.8307444.889571e-08
0.41761.8302274.659256e-08
0.4195431.8297174.427870e-08
0.421.8295984.373400e-08
0.4214941.8292124.283153e-08
0.4234551.8287134.164739e-08
0.4254251.8282194.045774e-08
0.4274041.8277313.926256e-08
0.4293921.8272483.806182e-08
0.4313891.826773.685549e-08
0.4333961.8262983.564355e-08
0.4354121.8258313.442598e-08
0.4374371.8253693.320274e-08
0.4394721.8249123.197381e-08
0.441.8247943.165500e-08
0.4415161.824463.120455e-08
0.443571.8240133.059447e-08
0.4456341.823572.998155e-08
0.4477061.8231332.936579e-08
0.4497891.82272.874715e-08
0.4518811.8222722.812564e-08
0.4539831.8218482.750124e-08
0.4560951.8214292.687393e-08
0.4582171.8210142.624371e-08
0.461.820672.571400e-08
0.4603481.8206042.553285e-08
0.462491.8201982.441889e-08
0.4646411.8197962.329976e-08
0.4668021.8193992.217542e-08
0.4689741.8190062.104585e-08
0.4711551.8186171.991102e-08
0.4733471.8182311.877092e-08
0.4755491.817851.762551e-08
0.4777611.8174731.647478e-08
0.4799831.81711.531869e-08
0.481.8170971.531000e-08
0.4822161.8167311.493826e-08
0.4844591.8163651.456198e-08
0.4867131.8160041.418395e-08
0.4889771.8156461.380415e-08
0.4912511.8152911.342260e-08
0.4935361.8149411.303926e-08
0.4958321.8145931.265415e-08
0.4981391.814251.226724e-08
0.51.8139761.195500e-08
0.5004561.813911.188593e-08
0.5027841.8135731.153320e-08
0.5051231.813241.117882e-08
0.5074721.812911.082280e-08
0.5098331.8125831.046512e-08
0.5122041.812261.010578e-08
0.5145871.811949.744769e-09
0.5169811.8116239.382076e-09
0.5193861.8113099.017696e-09
0.5218021.8109998.651622e-09
0.5242291.8106918.283844e-09
0.5266671.8103867.914355e-09
0.5291171.8100857.543148e-09
0.5315791.8097867.170214e-09
0.5340511.8094916.795546e-09
0.5365361.8091986.419134e-09
0.5390311.8089086.040972e-09
0.5415391.8086215.661050e-09
0.5440581.8083375.279361e-09
0.5465891.8080554.895897e-09
0.5491311.8077764.510649e-09
0.551.8076824.379000e-09
0.5516861.80754.392417e-09
0.5542521.8072264.412844e-09
0.556831.8069554.433367e-09
0.559421.8066874.453985e-09
0.5620221.8064214.474699e-09
0.5646371.8061584.495509e-09
0.5672631.8058974.516416e-09
0.5699021.8056394.537420e-09
0.5725531.8053834.558522e-09
0.5752161.805134.579722e-09
0.5778921.8048794.601021e-09
0.580581.804634.622419e-09
0.5832811.8043834.643916e-09
0.5859941.8041394.665514e-09
0.588721.8038974.687211e-09
0.5914591.8036574.709010e-09
0.594211.803424.730910e-09
0.5969741.8031854.752912e-09
0.5997511.8029514.775017e-09
0.61.8029314.777000e-09
0.6025411.802724.797229e-09
0.6053441.8024914.819545e-09
0.6081591.8022654.841965e-09
0.6109881.802044.864489e-09
0.613831.8018174.887118e-09
0.6166861.8015964.909853e-09
0.6195541.8013774.932693e-09
0.6224361.801164.955639e-09
0.6253321.8009454.978692e-09
0.6282411.8007325.001852e-09
0.6311631.8005215.025120e-09
0.6340991.8003125.048496e-09
0.6370491.8001045.071981e-09
0.6400121.7998985.095575e-09
0.6429891.7996945.119279e-09
0.645981.7994925.143093e-09
0.6489851.7992925.167018e-09
0.651.7992245.175100e-09
0.6520041.7990935.191055e-09
0.6550371.7988965.215203e-09
0.6580841.79875.239463e-09
0.6611451.7985075.263836e-09
0.664221.7983155.288323e-09
0.667311.7981245.312923e-09
0.6704141.7979355.337638e-09
0.6735331.7977485.362468e-09
0.6766661.7975625.387414e-09
0.6798141.7973785.412475e-09
0.6829761.7971955.437653e-09
0.6861531.7970145.462948e-09
0.6893451.7968345.488361e-09
0.6925511.7966565.513892e-09
0.6957731.7964795.539542e-09
0.6990091.7963035.565311e-09
0.71.796255.573200e-09
0.7022611.7961295.591200e-09
0.7055271.7959575.617210e-09
0.7088091.7957855.643340e-09
0.7121061.7956165.669592e-09
0.7154191.7954475.695966e-09
0.7187471.795285.722463e-09
0.722091.7951145.749083e-09
0.7254491.7949495.775827e-09
0.7288241.7947855.802695e-09
0.7322141.7946235.829688e-09
0.735621.7944625.856807e-09
0.7390421.7943025.884052e-09
0.742481.7941445.911423e-09
0.7459331.7939865.938922e-09
0.7494031.793835.966549e-09
0.7528891.7936755.994305e-09
0.7563921.7935216.022189e-09
0.759911.7933686.050203e-09
0.7634451.7932166.078348e-09
0.7669961.7930666.106623e-09
0.7705641.7929166.135030e-09
0.7741481.7927676.163570e-09
0.777751.792626.192242e-09
0.7813671.7924736.221047e-09
0.7850021.7923286.249986e-09
0.7886541.7921836.279060e-09
0.7923221.792046.308269e-09
0.7960081.7918976.337614e-09
0.7997111.7917566.367096e-09
0.81.7917456.369400e-09
0.8034311.7916156.396714e-09
0.8071681.7914756.426471e-09
0.8109231.7913376.456365e-09
0.8146951.7911996.486399e-09
0.8184841.7910626.516573e-09
0.8222921.7909266.546887e-09
0.8261171.790796.577342e-09
0.829961.7906566.607938e-09
0.833821.7905226.638677e-09
0.8376991.7903896.669559e-09
0.8415961.7902576.700585e-09
0.8455111.7901266.731755e-09
0.8494441.7899966.763070e-09
0.8533951.7898666.794530e-09
0.8573651.7897376.826137e-09
0.8613531.7896096.857891e-09
0.865361.7894816.889793e-09
0.8693851.7893556.921843e-09
0.8734291.7892296.954042e-09
0.8774921.7891036.986391e-09
0.8815741.7889797.018890e-09
0.8856751.7888557.051541e-09
0.8897941.7887317.084343e-09
0.8939331.7886097.117298e-09
0.8980921.7884877.150407e-09
0.91.7884317.165600e-09
0.9022691.7883657.183667e-09
0.9064661.7882447.217080e-09
0.9106831.7881247.250648e-09
0.9149191.7880057.284372e-09
0.9191751.7878867.318254e-09
0.9234511.7877677.352293e-09
0.9277471.7876497.386490e-09
0.9320621.7875327.420846e-09
0.9363981.7874157.455362e-09
0.9407541.7872997.490039e-09
0.945131.7871837.524877e-09
0.9495261.7870677.559877e-09
0.9539431.7869537.595040e-09
0.958381.7868387.630367e-09
0.9628391.7867247.665857e-09
0.9673171.7866117.701513e-09
0.9718171.7864987.737335e-09
0.9763381.7863857.773323e-09
0.9808791.7862737.809479e-09
0.9854421.7861617.845803e-09
0.9900261.786057.882296e-09
0.9946311.7859397.918959e-09
0.9992581.7858287.955792e-09
11.7858117.961700e-09
1.003911.7857187.992800e-09
1.008581.7856088.029982e-09
1.013271.7854998.067336e-09
1.017981.7853898.104864e-09
1.022721.7852818.142567e-09
1.027471.7851728.180445e-09
1.032251.7850648.218499e-09
1.037051.7849568.256730e-09
1.041881.7848488.295139e-09
1.046731.7847418.333727e-09
1.051591.7846348.372494e-09
1.056491.7845278.411442e-09
1.06141.784428.450571e-09
1.066341.7843148.489881e-09
1.07131.7842088.529375e-09
1.076281.7841028.569052e-09
1.081291.7839968.608914e-09
1.086321.7838918.648962e-09
1.091371.7837858.689195e-09
1.096451.783688.729616e-09
1.101551.7835758.770225e-09
1.106671.783478.811022e-09
1.111821.7833668.852010e-09
1.116991.7832618.893188e-09
1.122191.7831578.934558e-09
1.127411.7830538.976120e-09
1.132651.7829489.017875e-09
1.137921.7828449.059825e-09
1.143211.782749.101970e-09
1.148531.7826369.144311e-09
1.153871.7825339.186848e-09
1.159241.7824299.229584e-09
1.164631.7823259.272519e-09
1.170051.7822219.315653e-09
1.175491.7821189.358988e-09
1.180961.7820149.402524e-09
1.186461.781919.446263e-09
1.191981.7818079.490205e-09
1.197521.7817039.534352e-09
1.21.7816579.554100e-09
1.203091.78169.751101e-09
1.208691.7814961.010787e-08
1.214311.7813921.046629e-08
1.219961.7812881.082639e-08
1.225631.7811851.118816e-08
1.231331.7810811.155161e-08
1.237061.7809771.191675e-08
1.242821.7808731.228359e-08
1.24861.7807691.265214e-08
1.254411.7806641.302240e-08
1.260241.780561.339439e-08
1.26611.7804551.376810e-08
1.271991.7803511.414356e-08
1.277911.7802461.452075e-08
1.283851.7801411.489971e-08
1.289831.7800361.528043e-08
1.295831.7799311.566291e-08
1.301851.7798251.604718e-08
1.307911.779721.643324e-08
1.313991.7796141.682109e-08
1.320111.7795081.721074e-08
1.326251.7794021.760221e-08
1.332421.7792951.799550e-08
1.338611.7791881.839061e-08
1.344841.7790811.878757e-08
1.35111.7789741.918637e-08
1.357381.7788671.958703e-08
1.363691.7787591.998955e-08
1.370041.7786512.039394e-08
1.376411.7785422.080022e-08
1.382811.7784342.120838e-08
1.389251.7783242.161844e-08
1.395711.7782152.203041e-08
1.41.7781432.230400e-08
1.40221.7781052.262012e-08
1.408721.7779952.355703e-08
1.415281.7778852.449829e-08
1.421861.7777742.544393e-08
1.428471.7776632.639397e-08
1.435121.7775512.734843e-08
1.441791.7774392.830733e-08
1.44851.7773272.927069e-08
1.455241.7772143.023854e-08
1.462011.77713.121088e-08
1.468811.7769873.218775e-08
1.475641.7768723.316916e-08
1.482511.7767583.415513e-08
1.48941.7766423.514569e-08
1.496331.7765273.614086e-08
1.503291.776413.714066e-08
1.510281.7762943.814511e-08
1.517311.7761763.915424e-08
1.524371.7760594.016805e-08
1.531461.775944.118658e-08
1.538581.7758214.220985e-08
1.545741.7757024.323789e-08
1.552931.7755824.427070e-08
1.560151.7754614.530831e-08
1.567411.775344.635076e-08
1.57471.7752184.739805e-08
1.582031.7750954.845021e-08
1.589391.7749724.950727e-08
1.596781.7748485.056925e-08
1.61.7747945.103200e-08
1.604211.7747235.329084e-08
1.611671.7745985.729837e-08
1.619171.7744726.132454e-08
1.62671.7743466.536944e-08
1.634261.7742186.943316e-08
1.641871.774097.351578e-08
1.64951.7739617.761739e-08
1.657181.7738328.173808e-08
1.664891.7737018.587793e-08
1.672631.773579.003705e-08
1.680411.7734389.421551e-08
1.688231.7733059.841341e-08
1.696081.7731721.026308e-07
1.703971.7730371.068679e-07
1.71191.7729021.111246e-07
1.719861.7727661.154012e-07
1.727861.7726281.196976e-07
1.73591.772491.240141e-07
1.743971.7723521.283506e-07
1.752081.7722121.327073e-07
1.760231.7720711.370842e-07
1.768421.7719291.414815e-07
1.776651.7717871.458993e-07
1.784911.7716431.503376e-07
1.793221.7714981.547966e-07
1.81.771381.584400e-07
1.801561.7713531.612365e-07
1.809941.7712061.762867e-07
1.818361.7710581.914068e-07
1.826821.7709092.065973e-07
1.835311.770762.218584e-07
1.843851.7706092.371905e-07
1.852431.7704572.525940e-07
1.861041.7703032.680691e-07
1.86971.7701492.836161e-07
1.87841.7699942.992355e-07
1.887141.7698373.149276e-07
1.895911.7696793.306926e-07
1.904731.769523.465310e-07
1.913591.769363.624431e-07
1.92251.7691983.784292e-07
1.931441.7690353.944896e-07
1.940421.7688714.106247e-07
1.949451.7687064.268349e-07
1.958521.7685394.431205e-07
1.967631.7683724.594819e-07
1.976781.7682024.759194e-07
1.985981.7680324.924333e-07
1.995211.767865.090241e-07
21.767775.176200e-07
2.004491.7676865.405064e-07
2.013821.7675115.879847e-07
2.023191.7673356.356838e-07
2.03261.7671576.836048e-07
2.042051.7669787.317487e-07
2.051551.7667977.801165e-07
2.061091.7666158.287094e-07
2.070681.7664318.775283e-07
2.080311.7662469.265743e-07
2.089991.7660599.758484e-07
2.099711.765871.025352e-06
2.109481.765681.075085e-06
2.119291.7654891.125050e-06
2.129151.7652951.175248e-06
2.139061.76511.225678e-06
2.149011.7649031.276344e-06
2.1591.7647051.327245e-06
2.169051.7645041.378383e-06
2.179141.7643021.429759e-06
2.189271.7640981.481374e-06
2.199461.7638931.533228e-06
2.21.7638821.536000e-06
2.209691.7636851.765482e-06
2.219971.7634762.008985e-06
2.230291.7632642.253622e-06
2.240671.7630512.499396e-06
2.251091.7628362.746314e-06
2.261561.7626192.994381e-06
2.272081.76243.243601e-06
2.282651.7621793.493980e-06
2.293271.7619553.745525e-06
2.303941.761733.998239e-06
2.314651.7615034.252129e-06
2.325421.7612734.507200e-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
—