Optical constants

Refractive index of S-LAH63Q (OHARA)

S-LAH63Q: 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
1.8044
Extinction coefficient k
1.87414e-08
Permittivity ε1
3.25585
Permittivity ε2
6.76340e-08
Absorption coefficient α
0.00400803 cm⁻¹
Penetration depth δ = λ/(2πk)
4.98998e+09 nm
Abbe number Vd
39.58
Chromatic dispersion dn/dλ
-0.103395 µm⁻¹
Group index ng
1.86515
Group velocity dispersion
197.888 fs²/mm
Dispersion parameter D
-1079.59 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-LAH63Q (OHARA): S-LAH63Q
ohara_s_lah63q = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-LAH63Q", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_lah63q.range_nm)  # (365.015, 2325.42) nm
eps = ohara_s_lah63q.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=1.96723017λ2λ2−0.0110456086+0.194953915λ2λ2−0.0497137061+1.25386282λ2λ2−104.84352

Valid from 0.365015 to 2.32542 µm.

Coefficients as stored
CiValue
C10.0
C21.96723017
C30.0110456086
C40.194953915
C50.0497137061
C61.25386282
C7104.84352

Comments and conditions

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: -2.81e-06 9.15e-09 -8.1e-12 7.5e-07 7.86e-10 0.243
nd
1.804400
Vd
39.580489
density
value: 4450
thermal expansion
value: 7.9e-06, temperature range: 243 343
dPgF
-0.0012
resistance
acid: 51.2; climatic: 3.0; phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = -3.83e-07 K⁻¹ at 633 nm, dn/dT = -1.43e-06 K⁻¹ at 1310 nm, dn/dT = -1.51e-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-LAH63Q (OHARA), S-LAH63Q: n and k versus wavelength
λ (µm)nk
0.3650151.8586181.720311e-06
0.3667131.8576741.506473e-06
0.3684191.8567451.291641e-06
0.371.8558991.092500e-06
0.3701331.8558291.085974e-06
0.3718541.8549261.001196e-06
0.3735841.8540379.160229e-07
0.3753221.853168.304540e-07
0.3770681.8522967.444869e-07
0.3788221.8514436.581200e-07
0.381.850886.001000e-07
0.3805841.8506035.861793e-07
0.3823541.8497755.439688e-07
0.3841331.8489585.015618e-07
0.385921.8481524.589577e-07
0.3877151.8473584.161553e-07
0.3895181.8465743.731538e-07
0.391.8463673.616700e-07
0.391331.8458013.456549e-07
0.3931511.8450383.237397e-07
0.3949791.8442863.017227e-07
0.3968171.8435432.796032e-07
0.3986631.8428112.573808e-07
0.41.8422882.412800e-07
0.4005171.8420882.386595e-07
0.402381.8413752.292174e-07
0.4042521.840672.197314e-07
0.4061321.8399762.102013e-07
0.4080221.839292.006269e-07
0.409921.8386131.910079e-07
0.4118261.8379441.813441e-07
0.4137421.8372851.716354e-07
0.4156671.8366331.618816e-07
0.41761.835991.520824e-07
0.4195431.8353551.422376e-07
0.421.8352071.399200e-07
0.4214941.8347281.366264e-07
0.4234551.8341081.323050e-07
0.4254251.8334971.279634e-07
0.4274041.8328931.236016e-07
0.4293921.8322961.192195e-07
0.4313891.8317071.148171e-07
0.4333961.8311251.103941e-07
0.4354121.830551.059506e-07
0.4374371.8299811.014864e-07
0.4394721.829429.700149e-08
0.441.8292769.583800e-08
0.4415161.8288669.389563e-08
0.443571.8283189.126493e-08
0.4456341.8277778.862199e-08
0.4477061.8272428.596675e-08
0.4497891.8267138.329916e-08
0.4518811.8261918.061917e-08
0.4539831.8256757.792671e-08
0.4560951.8251657.522172e-08
0.4582171.8246617.250415e-08
0.461.8242437.022000e-08
0.4603481.8241626.986762e-08
0.462491.823676.770074e-08
0.4646411.8231836.552378e-08
0.4668021.8227026.333670e-08
0.4689741.8222266.113945e-08
0.4711551.8217555.893197e-08
0.4733471.8212915.671422e-08
0.4755491.8208315.448616e-08
0.4777611.8203765.224774e-08
0.4799831.8199274.999890e-08
0.481.8199244.998200e-08
0.4822161.8194834.842967e-08
0.4844591.8190434.685837e-08
0.4867131.8186094.527976e-08
0.4889771.8181794.369380e-08
0.4912511.8177544.210047e-08
0.4935361.8173344.049973e-08
0.4958321.8169193.889154e-08
0.4981391.8165083.727587e-08
0.51.8161813.597200e-08
0.5004561.8161013.580398e-08
0.5027841.8156993.494589e-08
0.5051231.8153013.408381e-08
0.5074721.8149083.321772e-08
0.5098331.8145193.234761e-08
0.5122041.8141343.147344e-08
0.5145871.8137533.059521e-08
0.5169811.8133772.971289e-08
0.5193861.8130042.882647e-08
0.5218021.8126352.793593e-08
0.5242291.812272.704124e-08
0.5266671.8119092.614240e-08
0.5291171.8115522.523937e-08
0.5315791.8111992.433214e-08
0.5340511.8108492.342069e-08
0.5365361.8105032.250500e-08
0.5390311.8101612.158505e-08
0.5415391.8098222.066082e-08
0.5440581.8094871.973229e-08
0.5465891.8091551.879945e-08
0.5491311.8088261.786226e-08
0.551.8087151.754200e-08
0.5516861.8085011.759577e-08
0.5542521.808181.767763e-08
0.556831.8078611.775988e-08
0.559421.8075461.784250e-08
0.5620221.8072341.792552e-08
0.5646371.8069251.800891e-08
0.5672631.8066191.809270e-08
0.5699021.8063171.817687e-08
0.5725531.8060171.826144e-08
0.5752161.805721.834640e-08
0.5778921.8054271.843176e-08
0.580581.8051361.851751e-08
0.5832811.8048481.860366e-08
0.5859941.8045631.869021e-08
0.588721.8042811.877717e-08
0.5914591.8040011.886453e-08
0.594211.8037251.895229e-08
0.5969741.8034511.904047e-08
0.5997511.8031791.912905e-08
0.61.8031551.913700e-08
0.6025411.8029111.921805e-08
0.6053441.8026451.930746e-08
0.6081591.8023811.939728e-08
0.6109881.802121.948753e-08
0.613831.8018621.957819e-08
0.6166861.8016061.966928e-08
0.6195541.8013521.976079e-08
0.6224361.8011011.985272e-08
0.6253321.8008521.994508e-08
0.6282411.8006062.003788e-08
0.6311631.8003612.013110e-08
0.6340991.800122.022476e-08
0.6370491.799882.031885e-08
0.6400121.7996432.041338e-08
0.6429891.7994072.050835e-08
0.645981.7991742.060376e-08
0.6489851.7989442.069962e-08
0.651.7988662.073200e-08
0.6520041.7987152.057185e-08
0.6550371.7984882.032946e-08
0.6580841.7982642.008594e-08
0.6611451.7980411.984129e-08
0.664221.7978211.959551e-08
0.667311.7976021.934857e-08
0.6704141.7973861.910049e-08
0.6735331.7971711.885126e-08
0.6766661.7969581.860086e-08
0.6798141.7967471.834930e-08
0.6829761.7965381.809658e-08
0.6861531.7963311.784267e-08
0.6893451.7961261.758758e-08
0.6925511.7959231.733131e-08
0.6957731.7957211.707385e-08
0.6990091.7955211.681519e-08
0.71.795461.673600e-08
0.7022611.7953231.664577e-08
0.7055271.7951261.651540e-08
0.7088091.7949311.638442e-08
0.7121061.7947381.625283e-08
0.7154191.7945461.612063e-08
0.7187471.7943571.598781e-08
0.722091.7941681.585438e-08
0.7254491.7939811.572032e-08
0.7288241.7937961.558564e-08
0.7322141.7936131.545034e-08
0.735621.793431.531440e-08
0.7390421.793251.517784e-08
0.742481.7930711.504064e-08
0.7459331.7928931.490279e-08
0.7494031.7927171.476431e-08
0.7528891.7925421.462519e-08
0.7563921.7923681.448541e-08
0.759911.7921961.434499e-08
0.7634451.7920251.420392e-08
0.7669961.7918561.406218e-08
0.7705641.7916881.391979e-08
0.7741481.7915211.377674e-08
0.777751.7913561.363302e-08
0.7813671.7911921.348863e-08
0.7850021.7910291.334357e-08
0.7886541.7908671.319783e-08
0.7923221.7907071.305142e-08
0.7960081.7905471.290433e-08
0.7997111.7903891.275655e-08
0.81.7903771.274500e-08
0.8034311.7902331.279965e-08
0.8071681.7900771.285918e-08
0.8109231.7899221.291900e-08
0.8146951.7897691.297909e-08
0.8184841.7896171.303946e-08
0.8222921.7894651.310011e-08
0.8261171.7893151.316104e-08
0.829961.7891661.322226e-08
0.833821.7890181.328376e-08
0.8376991.7888711.334554e-08
0.8415961.7887251.340762e-08
0.8455111.788581.346998e-08
0.8494441.7884361.353264e-08
0.8533951.7882931.359558e-08
0.8573651.7881511.365882e-08
0.8613531.788011.372235e-08
0.865361.787871.378618e-08
0.8693851.787731.385030e-08
0.8734291.7875921.391472e-08
0.8774921.7874551.397945e-08
0.8815741.7873181.404447e-08
0.8856751.7871821.410980e-08
0.8897941.7870471.417543e-08
0.8939331.7869131.424136e-08
0.8980921.786781.430760e-08
0.91.7867191.433800e-08
0.9022691.7866481.419330e-08
0.9064661.7865161.392568e-08
0.9106831.7863851.365681e-08
0.9149191.7862551.338670e-08
0.9191751.7861261.311533e-08
0.9234511.7859971.284270e-08
0.9277471.7858691.256880e-08
0.9320621.7857421.229362e-08
0.9363981.7856161.201717e-08
0.9407541.785491.173943e-08
0.945131.7853651.146040e-08
0.9495261.7852411.118007e-08
0.9539431.7851171.089843e-08
0.958381.7849941.061549e-08
0.9628391.7848721.033123e-08
0.9673171.784751.004564e-08
0.9718171.7846299.758733e-09
0.9763381.7845089.470488e-09
0.9808791.7843889.180901e-09
0.9854421.7842698.889967e-09
0.9900261.784158.597680e-09
0.9946311.7840318.304033e-09
0.9992581.7839148.009020e-09
11.7838957.961700e-09
1.003911.7837967.992800e-09
1.008581.783688.029982e-09
1.013271.7835638.067336e-09
1.017981.7834488.104864e-09
1.022721.7833328.142567e-09
1.027471.7832188.180445e-09
1.032251.7831038.218499e-09
1.037051.7829898.256730e-09
1.041881.7828768.295139e-09
1.046731.7827638.333727e-09
1.051591.782658.372494e-09
1.056491.7825388.411442e-09
1.06141.7824268.450571e-09
1.066341.7823158.489881e-09
1.07131.7822048.529375e-09
1.076281.7820938.569052e-09
1.081291.7819838.608914e-09
1.086321.7818738.648962e-09
1.091371.7817638.689195e-09
1.096451.7816548.729616e-09
1.101551.7815458.770225e-09
1.106671.7814378.811022e-09
1.111821.7813288.852010e-09
1.116991.781228.893188e-09
1.122191.7811128.934558e-09
1.127411.7810058.976120e-09
1.132651.7808979.017875e-09
1.137921.780799.059825e-09
1.143211.7806839.101970e-09
1.148531.7805779.144311e-09
1.153871.780479.186848e-09
1.159241.7803649.229584e-09
1.164631.7802589.272519e-09
1.170051.7801529.315653e-09
1.175491.7800479.358988e-09
1.180961.7799419.402524e-09
1.186461.7798369.446263e-09
1.191981.7797319.490205e-09
1.197521.7796259.534352e-09
1.21.7795799.554100e-09
1.203091.7795219.751101e-09
1.208691.7794161.010787e-08
1.214311.7793111.046629e-08
1.219961.7792061.082639e-08
1.225631.7791021.118816e-08
1.231331.7789971.155161e-08
1.237061.7788931.191675e-08
1.242821.7787881.228359e-08
1.24861.7786841.265214e-08
1.254411.778581.302240e-08
1.260241.7784751.339439e-08
1.26611.7783711.376810e-08
1.271991.7782671.414356e-08
1.277911.7781631.452075e-08
1.283851.7780581.489971e-08
1.289831.7779541.528043e-08
1.295831.777851.566291e-08
1.301851.7777451.604718e-08
1.307911.7776411.643324e-08
1.313991.7775361.682109e-08
1.320111.7774321.721074e-08
1.326251.7773271.760221e-08
1.332421.7772221.799550e-08
1.338611.7771171.839061e-08
1.344841.7770121.878757e-08
1.35111.7769071.918637e-08
1.357381.7768021.958703e-08
1.363691.7766971.998955e-08
1.370041.7765912.039394e-08
1.376411.7764852.080022e-08
1.382811.776382.120838e-08
1.389251.7762732.161844e-08
1.395711.7761672.203041e-08
1.41.7760972.230400e-08
1.40221.7760612.276086e-08
1.408721.7759542.411489e-08
1.415281.7758472.547521e-08
1.421861.775742.684186e-08
1.428471.7756332.821487e-08
1.435121.7755252.959427e-08
1.441791.7754173.098008e-08
1.44851.7753093.237234e-08
1.455241.77523.377107e-08
1.462011.7750923.517631e-08
1.468811.7749833.658809e-08
1.475641.7748733.800643e-08
1.482511.7747633.943138e-08
1.48941.7746534.086295e-08
1.496331.7745434.230118e-08
1.503291.7744324.374610e-08
1.510281.7743214.519774e-08
1.517311.7742094.665613e-08
1.524371.7740984.812131e-08
1.531461.7739854.959330e-08
1.538581.7738735.107215e-08
1.545741.7737595.255787e-08
1.552931.7736465.405050e-08
1.560151.7735325.555007e-08
1.567411.7734175.705662e-08
1.57471.7733025.857018e-08
1.582031.7731876.009078e-08
1.589391.7730716.161845e-08
1.596781.7729546.315323e-08
1.61.7729046.382200e-08
1.604211.7728376.642153e-08
1.611671.772727.103351e-08
1.619171.7726027.566693e-08
1.62671.7724838.032191e-08
1.634261.7723648.499855e-08
1.641871.7722458.969693e-08
1.64951.7721249.441718e-08
1.657181.7720039.915937e-08
1.664891.7718821.039236e-07
1.672631.771761.087101e-07
1.680411.7716371.135187e-07
1.688231.7715141.183498e-07
1.696081.771391.232033e-07
1.703971.7712651.280794e-07
1.71191.771141.329782e-07
1.719861.7710131.378998e-07
1.727861.7708871.428442e-07
1.73591.7707591.478117e-07
1.743971.7706311.528023e-07
1.752081.7705021.578161e-07
1.760231.7703721.628532e-07
1.768421.7702421.679137e-07
1.776651.770111.729978e-07
1.784911.7699781.781055e-07
1.793221.7698451.832370e-07
1.81.7697371.874300e-07
1.801561.7697121.900008e-07
1.809941.7695772.038362e-07
1.818361.7694422.177360e-07
1.826821.7693052.317004e-07
1.835311.7691682.457298e-07
1.843851.769032.598244e-07
1.852431.7688912.739846e-07
1.861041.7687512.882107e-07
1.86971.768613.025030e-07
1.87841.7684693.168617e-07
1.887141.7683263.312872e-07
1.895911.7681823.457798e-07
1.904731.7680373.603399e-07
1.913591.7678923.749677e-07
1.92251.7677453.896635e-07
1.931441.7675974.044276e-07
1.940421.7674484.192605e-07
1.949451.7672984.341623e-07
1.958521.7671474.491335e-07
1.967631.7669954.641743e-07
1.976781.7668424.792851e-07
1.985981.7666884.944662e-07
1.995211.7665325.097179e-07
21.7664515.176200e-07
2.004491.7663755.375130e-07
2.013821.7662175.787813e-07
2.023191.7660586.202415e-07
2.03261.7658986.618946e-07
2.042051.7657367.037415e-07
2.051551.7655747.457831e-07
2.061091.7654097.880202e-07
2.070681.7652448.304537e-07
2.080311.7650778.730847e-07
2.089991.7649099.159139e-07
2.099711.764749.589424e-07
2.109481.7645691.002171e-06
2.119291.7643971.045601e-06
2.129151.7642241.089233e-06
2.139061.7640491.133067e-06
2.149011.7638721.177106e-06
2.1591.7636951.221349e-06
2.169051.7635151.265799e-06
2.179141.7633341.310455e-06
2.189271.7631521.355318e-06
2.199461.7629681.400391e-06
2.21.7629581.402800e-06
2.209691.7627831.576626e-06
2.219971.7625961.761073e-06
2.230291.7624071.946378e-06
2.240671.7622172.132545e-06
2.251091.7620252.319579e-06
2.261561.7618312.507482e-06
2.272081.7616362.696259e-06
2.282651.7614392.885914e-06
2.293271.7612413.076452e-06
2.303941.761043.267876e-06
2.314651.7608383.460190e-06
2.325421.7606343.653399e-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
—