Optical constants

Refractive index of S-TIM5 (OHARA)

S-TIM5: n,k 0.36–2.4 µm

Data
formula 2 + tabulated k
Range
0.36–2.4 µm
Temperature
298 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.36–2.4 µm
Refractive index n
1.60342
Extinction coefficient k
1.40486e-08
Permittivity ε1
2.57095
Permittivity ε2
4.50517e-08
Absorption coefficient α
0.00300443 cm⁻¹
Penetration depth δ = λ/(2πk)
6.65683e+09 nm
Abbe number Vd
38.027
Chromatic dispersion dn/dλ
-0.0805107 µm⁻¹
Group index ng
1.65072
Group velocity dispersion
155.095 fs²/mm
Dispersion parameter D
-846.126 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-TIM5 (OHARA): S-TIM5
ohara_s_tim5 = ls.fetch_refractiveindex("specs", "OHARA-optical", "S-TIM5", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_s_tim5.range_nm)  # (360, 2400) nm
eps = ohara_s_tim5.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=1.38531342λ2λ2−0.0104074567+0.122372945λ2λ2−0.0557440088+1.40508326λ2λ2−144.878733

Valid from 0.36 to 2.4 µm.

Coefficients as stored
CiValue
C10.0
C21.38531342
C30.0104074567
C40.122372945
C50.0557440088
C61.40508326
C7144.878733

Comments and conditions

Recommended - Lightweight

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: -4.74e-07 1.38e-08 -3.81e-11 7.33e-07 9.25e-10 0.264
nd
1.603420
Vd
38.027347
glass code
603380
density
value: 2630
thermal expansion
value: 8.3e-06, temperature range: 243 343; value: 9.6e-06, temperature range: 293 573
dPgF
0.0036
resistance
acid: 1.0; climatic: 1.0; phosphate: 1.2

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 8.49e-07 K⁻¹ at 633 nm, dn/dT = -1.37e-08 K⁻¹ at 1310 nm, dn/dT = -7.55e-08 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-TIM5 (OHARA), S-TIM5: n and k versus wavelength
λ (µm)nk
0.361.6491674.757600e-06
0.3617161.6483244.199377e-06
0.363441.6474963.638493e-06
0.3651721.6466823.074935e-06
0.3669121.6458822.508692e-06
0.3686611.6450951.939751e-06
0.371.6445041.504100e-06
0.3704181.6443211.463265e-06
0.3721831.643561.290807e-06
0.3739571.6428111.117527e-06
0.375741.6420759.434208e-07
0.377531.641357.684851e-07
0.379331.6406375.927156e-07
0.381.6403755.272300e-07
0.3811381.6399354.924968e-07
0.3829541.6392434.370316e-07
0.3847791.6385633.813021e-07
0.3866131.6378933.253070e-07
0.3884561.6372342.690450e-07
0.391.6366912.218900e-07
0.3903071.6365842.187619e-07
0.3921671.6359441.998101e-07
0.3940361.6353141.807680e-07
0.3959141.6346931.616351e-07
0.3978011.6340821.424111e-07
0.3996971.6334791.230954e-07
0.41.6333841.200100e-07
0.4016021.6328851.147149e-07
0.4035161.63231.083888e-07
0.4054391.6317231.020325e-07
0.4073721.6311549.564600e-08
0.4093131.6305938.922903e-08
0.4112641.6300418.278147e-08
0.4132241.6294967.630319e-08
0.4151931.6289586.979402e-08
0.4171721.6284286.325384e-08
0.4191611.6279065.668249e-08
0.421.6276885.390800e-08
0.4211581.627395.302893e-08
0.4231661.6268825.150554e-08
0.4251821.626384.997488e-08
0.4272091.6258854.843692e-08
0.4292451.6253974.689164e-08
0.4312911.6249154.533899e-08
0.4333461.624444.377895e-08
0.4354111.623974.221146e-08
0.4374871.6235074.063651e-08
0.4395721.623053.905405e-08
0.441.6229583.872900e-08
0.4416671.6225993.825940e-08
0.4437721.6221543.766632e-08
0.4458871.6217153.707042e-08
0.4480121.6212813.647167e-08
0.4501471.6208523.587007e-08
0.4522921.6204293.526560e-08
0.4544481.6200123.465825e-08
0.4566141.6195993.404801e-08
0.458791.6191923.343486e-08
0.461.6189693.309400e-08
0.4609771.618793.278816e-08
0.4631741.6183933.210027e-08
0.4653811.6180013.140911e-08
0.4675991.6176133.071465e-08
0.4698281.617233.001688e-08
0.4720671.6168522.931579e-08
0.4743171.6164792.861135e-08
0.4765781.616112.790356e-08
0.4788491.6157452.719239e-08
0.481.6155622.683200e-08
0.4811311.6153852.644243e-08
0.4834241.6150292.565269e-08
0.4857281.6146772.485919e-08
0.4880431.6143292.406191e-08
0.4903691.6139862.326083e-08
0.4927061.6136462.245593e-08
0.4950551.6133112.164720e-08
0.4974141.6129792.083461e-08
0.4997851.6126512.001815e-08
0.51.6126221.994400e-08
0.5021671.6123271.964959e-08
0.504561.6120071.932439e-08
0.5069651.611691.899763e-08
0.5093811.6113771.866932e-08
0.5118091.6110681.833944e-08
0.5142481.6107621.800799e-08
0.5166991.6104591.767496e-08
0.5191611.610161.734034e-08
0.5216361.6098651.700413e-08
0.5241221.6095721.666632e-08
0.526621.6092831.632689e-08
0.529131.6089971.598585e-08
0.5316521.6087141.564318e-08
0.5341851.6084341.529888e-08
0.5367311.6081571.495294e-08
0.5392891.6078841.460535e-08
0.541861.6076131.425611e-08
0.5444421.6073451.390519e-08
0.5470371.607081.355261e-08
0.5496441.6068181.319835e-08
0.551.6067831.315000e-08
0.5522641.6065591.320410e-08
0.5548961.6063031.326701e-08
0.5575411.6060491.333022e-08
0.5601981.6057981.339373e-08
0.5628681.6055491.345754e-08
0.565551.6053031.352165e-08
0.5682461.605061.358607e-08
0.5709541.604821.365080e-08
0.5736751.6045811.371584e-08
0.5764091.6043461.378118e-08
0.5791561.6041121.384684e-08
0.5819171.6038811.391281e-08
0.584691.6036531.397909e-08
0.5874771.6034271.404570e-08
0.5902771.6032031.411261e-08
0.593091.6029811.417985e-08
0.5959171.6027621.424741e-08
0.5987571.6025451.431529e-08
0.61.6024511.434500e-08
0.601611.602331.438352e-08
0.6044781.6021171.445211e-08
0.6073591.6019061.452102e-08
0.6102531.6016971.459026e-08
0.6131621.6014911.465983e-08
0.6160841.6012861.472973e-08
0.619021.6010841.479997e-08
0.6219711.6008831.487054e-08
0.6249351.6006851.494145e-08
0.6279131.6004881.501269e-08
0.6309061.6002931.508427e-08
0.6339131.60011.515620e-08
0.6369341.5999091.522847e-08
0.639971.599721.530108e-08
0.643021.5995321.537404e-08
0.6460851.5993471.544734e-08
0.6491641.5991631.552100e-08
0.651.5991131.554100e-08
0.6522581.598981.559496e-08
0.6553661.59881.566926e-08
0.658491.5986211.574391e-08
0.6616281.5984441.581892e-08
0.6647821.5982681.589428e-08
0.667951.5980941.597000e-08
0.6711331.5979221.604609e-08
0.6743321.5977511.612254e-08
0.6775461.5975821.619935e-08
0.6807751.5974141.627653e-08
0.684021.5972481.635407e-08
0.687281.5970831.643199e-08
0.6905551.596921.651027e-08
0.6938471.5967581.658893e-08
0.6971531.5965981.666797e-08
0.71.5964611.673600e-08
0.7004761.5964391.668665e-08
0.7038151.5962811.634056e-08
0.7071691.5961251.599283e-08
0.7105391.595971.564344e-08
0.7139261.5958161.529238e-08
0.7173281.5956641.493965e-08
0.7207471.5955131.458523e-08
0.7241821.5953631.422913e-08
0.7276341.5952151.387133e-08
0.7311021.5950681.351183e-08
0.7345861.5949221.315061e-08
0.7380871.5947771.278767e-08
0.7416051.5946331.242300e-08
0.7451391.5944911.205660e-08
0.7486911.5943491.168844e-08
0.7522591.5942091.131854e-08
0.7558441.594071.094686e-08
0.7594461.5939321.057342e-08
0.7630661.5937951.019820e-08
0.7667031.593669.821190e-09
0.7703571.5935259.442383e-09
0.7740281.5933919.061770e-09
0.7777171.5932598.679344e-09
0.7814241.5931278.295094e-09
0.7851481.5929967.909014e-09
0.788891.5928677.521093e-09
0.792651.5927387.131324e-09
0.7964281.592616.739697e-09
0.81.5924916.369400e-09
0.8002241.5924846.387231e-09
0.8040381.5923586.691143e-09
0.807871.5922336.996504e-09
0.811721.5921097.303320e-09
0.8155891.5919857.611598e-09
0.8194761.5918637.921346e-09
0.8233811.5917428.232570e-09
0.8273061.5916218.545277e-09
0.8312491.5915018.859475e-09
0.835211.5913829.175170e-09
0.8391911.5912649.492369e-09
0.8431911.5911479.811081e-09
0.8472091.591031.013131e-08
0.8512471.5909141.045307e-08
0.8553041.5907991.077636e-08
0.859381.5906851.110119e-08
0.8634761.5905711.142757e-08
0.8675921.5904591.175550e-08
0.8717271.5903461.208500e-08
0.8758811.5902351.241607e-08
0.8800561.5901241.274871e-08
0.884251.5900141.308294e-08
0.8884641.5899041.341877e-08
0.8926991.5897961.375619e-08
0.8969531.5896871.409523e-08
0.91.5896111.433800e-08
0.9012281.589581.435757e-08
0.9055241.5894731.442599e-08
0.9098391.5893661.449474e-08
0.9141761.5892611.456382e-08
0.9185331.5891551.463322e-08
0.922911.5890511.470296e-08
0.9273091.5889471.477303e-08
0.9317281.5888431.484343e-08
0.9361691.588741.491417e-08
0.9406311.5886381.498525e-08
0.9451141.5885361.505666e-08
0.9496181.5884341.512842e-08
0.9541441.5883331.520052e-08
0.9586921.5882331.527296e-08
0.9632611.5881331.534574e-08
0.9678521.5880331.541888e-08
0.9724641.5879341.549236e-08
0.9770991.5878361.556619e-08
0.9817561.5877371.564037e-08
0.9864351.5876391.571491e-08
0.9911371.5875421.578980e-08
0.995861.5874451.586505e-08
11.5873611.593100e-08
1.000611.5873481.594067e-08
1.005381.5872521.601666e-08
1.010171.5871561.609301e-08
1.014981.5870611.616973e-08
1.019821.5869661.624682e-08
1.024681.5868711.632427e-08
1.029561.5867761.640209e-08
1.034471.5866821.648028e-08
1.03941.5865881.655884e-08
1.044351.5864951.663778e-08
1.049331.5864021.671710e-08
1.054331.5863091.679679e-08
1.059361.5862161.687686e-08
1.064411.5861241.695732e-08
1.069481.5860311.703815e-08
1.074581.585941.711938e-08
1.07971.5858481.720099e-08
1.084841.5857561.728299e-08
1.090011.5856651.736538e-08
1.095211.5855741.744816e-08
1.100431.5854831.753134e-08
1.105671.5853931.761491e-08
1.110941.5853021.769888e-08
1.116241.5852121.778325e-08
1.121561.5851221.786803e-08
1.12691.5850321.795321e-08
1.132271.5849421.803879e-08
1.137671.5848531.812478e-08
1.143091.5847631.821118e-08
1.148541.5846741.829800e-08
1.154011.5845851.838523e-08
1.159511.5844951.847287e-08
1.165041.5844061.856093e-08
1.170591.5843171.864941e-08
1.176171.5842281.873831e-08
1.181781.584141.882764e-08
1.187411.5840511.891739e-08
1.193071.5839621.900757e-08
1.198761.5838731.909818e-08
1.21.5838541.911800e-08
1.204471.5837852.018906e-08
1.210211.5836962.156471e-08
1.215981.5836082.294692e-08
1.221771.5835192.433572e-08
1.22761.583432.573114e-08
1.233451.5833422.713321e-08
1.239331.5832532.854197e-08
1.245231.5831642.995743e-08
1.251171.5830763.137964e-08
1.257131.5829873.280863e-08
1.263121.5828983.424444e-08
1.269141.5828093.568708e-08
1.275191.582723.713660e-08
1.281271.5826313.859303e-08
1.287371.5825424.005640e-08
1.293511.5824534.152674e-08
1.299671.5823644.300409e-08
1.305871.5822754.448849e-08
1.312091.5821854.597995e-08
1.318351.5820954.747853e-08
1.324631.5820064.898425e-08
1.330941.5819165.049714e-08
1.337291.5818265.201725e-08
1.343661.5817355.354460e-08
1.350061.5816455.507922e-08
1.35651.5815545.662117e-08
1.362961.5814635.817046e-08
1.369461.5813725.972713e-08
1.375991.5812816.129123e-08
1.382541.581196.286278e-08
1.389131.5810986.444182e-08
1.395751.5810066.602838e-08
1.41.5809476.704600e-08
1.402411.5809146.716121e-08
1.409091.5808226.748130e-08
1.415811.5807296.780292e-08
1.422551.5806366.812607e-08
1.429331.5805436.845076e-08
1.436151.5804496.877699e-08
1.442991.5803556.910479e-08
1.449871.5802616.943414e-08
1.456781.5801676.976506e-08
1.463721.5800727.009756e-08
1.47071.5799777.043165e-08
1.477711.5798817.076733e-08
1.484751.5797857.110460e-08
1.491821.5796897.144349e-08
1.498931.5795937.178399e-08
1.506081.5794967.212611e-08
1.513261.5793987.246987e-08
1.520471.5793017.281526e-08
1.527721.5792027.316230e-08
1.5351.5791047.351099e-08
1.542311.5790057.386134e-08
1.549661.5789057.421337e-08
1.557051.5788057.456707e-08
1.564471.5787057.492246e-08
1.571931.5786047.527954e-08
1.579421.5785037.563832e-08
1.586951.5784017.599881e-08
1.594511.5782987.636102e-08
1.61.5782247.662400e-08
1.602111.5781957.855884e-08
1.609741.5780928.556669e-08
1.617421.5779889.260795e-08
1.625121.5778849.968277e-08
1.632871.5777781.067913e-07
1.640651.5776731.139337e-07
1.648471.5775671.211102e-07
1.656331.577461.283208e-07
1.664221.5773521.355658e-07
1.672151.5772441.428454e-07
1.680121.5771361.501596e-07
1.688131.5770271.575088e-07
1.696181.5769171.648929e-07
1.704261.5768061.723122e-07
1.712381.5766951.797669e-07
1.720541.5765831.872571e-07
1.728741.576471.947830e-07
1.736981.5763572.023448e-07
1.745261.5762432.099426e-07
1.753581.5761282.175767e-07
1.761941.5760132.252471e-07
1.770331.5758972.329540e-07
1.778771.575782.406978e-07
1.787251.5756622.484784e-07
1.795771.5755432.562961e-07
1.81.5754852.601800e-07
1.804331.5754242.664616e-07
1.812931.5753042.789463e-07
1.821571.5751832.914904e-07
1.830251.5750613.040944e-07
1.838971.5749393.167584e-07
1.847741.5748153.294828e-07
1.856541.5746913.422678e-07
1.865391.5745663.551137e-07
1.874281.5744393.680209e-07
1.883211.5743123.809896e-07
1.892191.5741843.940201e-07
1.901211.5740564.071127e-07
1.910271.5739264.202677e-07
1.919371.5737954.334854e-07
1.928521.5736634.467661e-07
1.937711.573534.601101e-07
1.946951.5733974.735177e-07
1.956231.5732624.869892e-07
1.965551.5731265.005249e-07
1.974921.5729895.141251e-07
1.984331.5728515.277901e-07
1.993791.5727125.415203e-07
21.572625.505400e-07
2.003291.5725725.645581e-07
2.012841.5724316.052437e-07
2.022431.5722886.461232e-07
2.032071.5721456.871975e-07
2.041751.5727.284676e-07
2.051491.5718547.699344e-07
2.061261.5717078.115988e-07
2.071091.5715598.534618e-07
2.080961.571418.955243e-07
2.090881.5712599.377873e-07
2.100841.5711079.802517e-07
2.110851.5709541.022918e-06
2.120911.5707991.065789e-06
2.131021.5706441.108863e-06
2.141181.5704871.152143e-06
2.151381.5703281.195629e-06
2.161641.5701681.239322e-06
2.171941.5700071.283224e-06
2.182291.5698451.327334e-06
2.192691.5696811.371655e-06
2.21.5695651.402800e-06
2.203141.5695161.411707e-06
2.213641.5693491.441475e-06
2.224191.569181.471385e-06
2.234791.5690111.501437e-06
2.245441.568841.531633e-06
2.256151.5686671.561972e-06
2.26691.5684931.592457e-06
2.27771.5683171.623086e-06
2.288561.5681391.653862e-06
2.299471.567961.684784e-06
2.310421.567781.715853e-06
2.321441.5675971.747071e-06
2.33251.5674141.778437e-06
2.343621.5672281.809953e-06
2.354791.5670411.841619e-06
2.366011.5668521.873436e-06
2.377291.5666611.905405e-06
2.388621.5664681.937526e-06
2.41.5662741.969800e-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
—