Optical constants

Refractive index of PBL35Y (OHARA)

PBL35Y: n,k 0.365–1.129 µm

Data
formula 2 + tabulated k
Range
0.365–1.129 µm
Temperature
298 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–1.129 µm
Refractive index n
1.58159
Extinction coefficient k
4.67830e-09
Permittivity ε1
2.50142
Permittivity ε2
1.47983e-08
Absorption coefficient α
0.0010005 cm⁻¹
Penetration depth δ = λ/(2πk)
1.99901e+10 nm
Abbe number Vd
40.856
Chromatic dispersion dn/dλ
-0.0724903 µm⁻¹
Group index ng
1.62418
Group velocity dispersion
137.976 fs²/mm
Dispersion parameter D
-752.732 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

# PBL35Y (OHARA): PBL35Y
ohara_pbl35y = ls.fetch_refractiveindex("specs", "OHARA-optical", "PBL35Y", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ohara_pbl35y.range_nm)  # (365, 1129) nm
eps = ohara_pbl35y.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=1.31884698λ2λ2−0.0101474939+0.125014653λ2λ2−0.0481636043+0.215794324λ2λ2−28.5517448

Valid from 0.365 to 1.129 µm.

Coefficients as stored
CiValue
C10.0
C21.31884698
C30.0101474939
C40.125014653
C50.0481636043
C60.215794324
C728.5517448

Comments and conditions

Improved XMT at 365

Conditions

temperature
298 K

Properties

thermal dispersion
type: formula A, coefficients: -1.48e-06 1.41e-08 -1.47e-11 8.54e-07 6.15e-10 0.229
nd
1.581591
Vd
40.855991
density
value: 3270
thermal expansion
value: 9.1e-06, temperature range: 243 343
dPgF
-0.0013
resistance
acid: 1.0; climatic: 2.0; phosphate: 2.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 298.0 K): dn/dT = 4.59e-07 K⁻¹ at 633 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 416 wavelengths, the same grid as the API and the library
PBL35Y (OHARA), PBL35Y: n and k versus wavelength
λ (µm)nk
0.3651.6193748.688300e-09
0.3660341.6189758.110322e-09
0.3670721.6185797.530705e-09
0.3681121.6181866.949446e-09
0.3691551.6177976.366540e-09
0.371.6174865.894600e-09
0.3702021.6174125.836771e-09
0.3712511.617035.535753e-09
0.3723031.6166515.233882e-09
0.3733581.6162754.931155e-09
0.3744161.6159034.627570e-09
0.3754771.6155344.323125e-09
0.3765411.6151684.017817e-09
0.3776091.6148053.711643e-09
0.3786791.6144453.404602e-09
0.3797521.6140883.096691e-09
0.381.6140063.025500e-09
0.3808281.6137343.032092e-09
0.3819071.6133843.040683e-09
0.382991.6130363.049298e-09
0.3840751.6126913.057938e-09
0.3851641.6123493.066603e-09
0.3862551.612013.075292e-09
0.387351.6116733.084005e-09
0.3884481.611343.092743e-09
0.3895491.6110093.101507e-09
0.391.6108743.105100e-09
0.3906531.610683.110294e-09
0.391761.6103553.119107e-09
0.392871.6100323.127945e-09
0.3939831.6097123.136808e-09
0.39511.6093943.145696e-09
0.396221.6090793.154609e-09
0.3973431.6087663.163547e-09
0.3984691.6084563.172511e-09
0.3995981.6081493.181500e-09
0.41.608043.184700e-09
0.400731.6078433.190514e-09
0.4018661.6075413.199555e-09
0.4030051.607243.208620e-09
0.4041471.6069423.217712e-09
0.4052931.6066473.226829e-09
0.4064411.6063533.235972e-09
0.4075931.6060623.245141e-09
0.4087481.6057733.254336e-09
0.4099071.6054873.263557e-09
0.4110681.6052033.272804e-09
0.4122331.604923.282077e-09
0.4134021.604643.291377e-09
0.4145731.6043633.300703e-09
0.4157481.6040873.310055e-09
0.4169261.6038133.319434e-09
0.4181081.6035423.328840e-09
0.4192931.6032733.338272e-09
0.421.6031133.343900e-09
0.4204811.6030053.347733e-09
0.4216731.602743.357225e-09
0.4228681.6024763.366743e-09
0.4240661.6022153.376289e-09
0.4252681.6019563.385861e-09
0.4264731.6016983.395461e-09
0.4276821.6014433.405088e-09
0.4288941.6011893.414742e-09
0.430111.6009373.424424e-09
0.4313291.6006873.434133e-09
0.4325511.6004393.443869e-09
0.4337771.6001933.453633e-09
0.4350061.5999493.463425e-09
0.4362391.5997063.473245e-09
0.4374751.5994653.483092e-09
0.4387151.5992263.492967e-09
0.4399591.5989893.502870e-09
0.441.5989813.503200e-09
0.4412051.5987533.512796e-09
0.4424561.5985193.522749e-09
0.443711.5982873.532730e-09
0.4449671.5980563.542740e-09
0.4462281.5978283.552778e-09
0.4474931.59763.562845e-09
0.4487611.5973753.572940e-09
0.4500331.5971513.583063e-09
0.4513091.5969283.593216e-09
0.4525881.5967073.603397e-09
0.453871.5964883.613607e-09
0.4551561.596273.623846e-09
0.4564461.5960543.634114e-09
0.457741.595843.644411e-09
0.4590371.5956273.654737e-09
0.461.595473.662400e-09
0.4603381.5954153.665092e-09
0.4616431.5952053.675477e-09
0.4629511.5949963.685891e-09
0.4642631.5947893.696335e-09
0.4655791.5945833.706809e-09
0.4668981.5943793.717312e-09
0.4682221.5941763.727844e-09
0.4695491.5939743.738407e-09
0.4708791.5937743.749000e-09
0.4722141.5935763.759622e-09
0.4735521.5933783.770275e-09
0.4748941.5931823.780958e-09
0.476241.5929883.791671e-09
0.477591.5927943.802415e-09
0.4789431.5926023.813189e-09
0.481.5924543.821600e-09
0.4803011.5924123.823995e-09
0.4816621.5922223.834837e-09
0.4830271.5920343.845709e-09
0.4843961.5918473.856613e-09
0.4857691.5916623.867547e-09
0.4871451.5914773.878513e-09
0.4885261.5912943.889509e-09
0.489911.5911123.900537e-09
0.4912991.5909323.911596e-09
0.4926911.5907523.922686e-09
0.4940881.5905743.933808e-09
0.4954881.5903973.944961e-09
0.4968921.5902213.956145e-09
0.49831.5900463.967362e-09
0.4997131.5898733.978610e-09
0.51.5898383.980900e-09
0.5011291.58973.989887e-09
0.5025491.5895294.001195e-09
0.5039731.5893594.012535e-09
0.5054021.589194.023907e-09
0.5068341.5890224.035311e-09
0.508271.5888554.046748e-09
0.5097111.588694.058217e-09
0.5111551.5885254.069718e-09
0.5126041.5883624.081252e-09
0.5140571.5881994.092819e-09
0.5155141.5880384.104419e-09
0.5169751.5878774.116051e-09
0.518441.5877184.127717e-09
0.5199091.587564.139415e-09
0.5213821.5874024.151147e-09
0.522861.5872464.162912e-09
0.5243421.5870914.174710e-09
0.5258281.5869374.186541e-09
0.5273181.5867834.198407e-09
0.5288131.5866314.210305e-09
0.5303111.586484.222238e-09
0.5318141.5863294.234204e-09
0.5333211.586184.246205e-09
0.5348331.5860324.258239e-09
0.5363491.5858844.270307e-09
0.5378691.5857374.282410e-09
0.5393931.5855924.294547e-09
0.5409221.5854474.306718e-09
0.5424551.5853034.318924e-09
0.5439921.585164.331164e-09
0.5455341.5850184.343439e-09
0.547081.5848774.355749e-09
0.548631.5847374.368094e-09
0.551.5846144.379000e-09
0.5501851.5845984.380473e-09
0.5517441.5844594.392885e-09
0.5533081.5843214.405332e-09
0.5548761.5841854.417814e-09
0.5564491.5840494.430331e-09
0.5580261.5839134.442884e-09
0.5596071.5837794.455473e-09
0.5611931.5836464.468097e-09
0.5627841.5835134.480757e-09
0.5643791.5833814.493453e-09
0.5659781.583254.506185e-09
0.5675821.583124.518953e-09
0.5691911.5829914.531757e-09
0.5708041.5828624.544597e-09
0.5724211.5827344.557474e-09
0.5740441.5826074.570388e-09
0.5756711.5824814.583337e-09
0.5773021.5823554.596324e-09
0.5789381.582234.609347e-09
0.5805791.5821064.622408e-09
0.5822241.5819834.635505e-09
0.5838741.5818614.648640e-09
0.5855291.5817394.661811e-09
0.5871881.5816184.675020e-09
0.5888531.5814974.688267e-09
0.5905211.5813784.701551e-09
0.5921951.5812594.714872e-09
0.5938731.581144.728232e-09
0.5955561.5810234.741629e-09
0.5972441.5809064.755064e-09
0.5989371.580794.768538e-09
0.61.5807184.777000e-09
0.6006341.5806754.782050e-09
0.6023371.580564.795604e-09
0.6040441.5804464.809195e-09
0.6057551.5803324.822825e-09
0.6074721.5802194.836494e-09
0.6091941.5801074.850201e-09
0.610921.5799964.863948e-09
0.6126521.5798854.877733e-09
0.6143881.5797754.891557e-09
0.6161291.5796654.905421e-09
0.6178751.5795564.919324e-09
0.6196261.5794484.933266e-09
0.6213831.579344.947248e-09
0.6231441.5792334.961269e-09
0.624911.5791274.975330e-09
0.6266811.5790214.989431e-09
0.6284571.5789165.003572e-09
0.6302381.5788115.017753e-09
0.6320241.5787075.031974e-09
0.6338151.5786045.046236e-09
0.6356111.5785015.060538e-09
0.6374131.5783995.074880e-09
0.6392191.5782975.089263e-09
0.6410311.5781965.103687e-09
0.6428471.5780955.118152e-09
0.6446691.5779955.132657e-09
0.6464961.5778965.147204e-09
0.6483291.5777975.161792e-09
0.651.5777075.175100e-09
0.6501661.5776995.176422e-09
0.6520091.5776015.191092e-09
0.6538561.5775035.205805e-09
0.6557091.5774075.220559e-09
0.6575681.5773115.235355e-09
0.6594311.5772155.250193e-09
0.66131.577125.265073e-09
0.6631741.5770255.279995e-09
0.6650541.5769315.294959e-09
0.6669391.5768375.309966e-09
0.6688291.5767445.325015e-09
0.6707241.5766525.340107e-09
0.6726251.576565.355242e-09
0.6745311.5764685.370420e-09
0.6764431.5763775.385640e-09
0.678361.5762875.400904e-09
0.6802831.5761965.416211e-09
0.6822111.5761075.431562e-09
0.6841441.5760185.446955e-09
0.6860831.5759295.462393e-09
0.6880271.5758415.477874e-09
0.6899771.5757535.493400e-09
0.6919331.5756665.508969e-09
0.6938941.5755795.524582e-09
0.695861.5754935.540240e-09
0.6978321.5754075.555942e-09
0.699811.5753215.571688e-09
0.71.5753135.573200e-09
0.7017931.5752365.587479e-09
0.7037821.5751525.603315e-09
0.7057771.5750675.619196e-09
0.7077771.5749845.635121e-09
0.7097831.57495.651092e-09
0.7117951.5748185.667108e-09
0.7138121.5747355.683170e-09
0.7158351.5746535.699277e-09
0.7178641.5745725.715429e-09
0.7198981.574495.731628e-09
0.7219381.574415.747872e-09
0.7239841.5743295.764162e-09
0.7260361.5742495.780499e-09
0.7280941.574175.796882e-09
0.7301571.5740915.813311e-09
0.7322261.5740125.829787e-09
0.7343021.5739335.846309e-09
0.7363831.5738555.862879e-09
0.738471.5737785.879495e-09
0.7405621.5737015.896159e-09
0.7426611.5736245.912869e-09
0.7447661.5735475.929627e-09
0.7468771.5734715.946433e-09
0.7489931.5733955.963286e-09
0.7511161.573325.980187e-09
0.7532451.5732455.997135e-09
0.755381.573176.014132e-09
0.757521.5730966.031177e-09
0.7596671.5730226.048270e-09
0.761821.5729496.065412e-09
0.7639791.5728756.082602e-09
0.7661441.5728036.099841e-09
0.7683161.572736.117129e-09
0.7704931.5726586.134466e-09
0.7726771.5725866.151852e-09
0.7748671.5725146.169288e-09
0.7770631.5724436.186772e-09
0.7792651.5723726.204306e-09
0.7814731.5723026.221890e-09
0.7836881.5722326.239524e-09
0.7859091.5721626.257208e-09
0.7881361.5720926.274942e-09
0.790371.5720236.292726e-09
0.792611.5719546.310560e-09
0.7948561.5718856.328445e-09
0.7971091.5718176.346381e-09
0.7993681.5717496.364368e-09
0.81.571736.369400e-09
0.8016331.5716816.382405e-09
0.8039051.5716146.400494e-09
0.8061841.5715476.418634e-09
0.8084681.571486.436825e-09
0.810761.5714136.455068e-09
0.8130571.5713476.473363e-09
0.8153621.5712816.491709e-09
0.8176721.5712156.510108e-09
0.819991.571156.528558e-09
0.8223141.5710856.547061e-09
0.8246441.571026.565617e-09
0.8269811.5709556.584225e-09
0.8293251.5708916.602885e-09
0.8316751.5708276.621599e-09
0.8340321.5707636.640365e-09
0.8363961.57076.659185e-09
0.8387661.5706366.678058e-09
0.8411441.5705736.696985e-09
0.8435271.5705116.715965e-09
0.8459181.5704486.734999e-09
0.8483151.5703866.754087e-09
0.850721.5703246.773229e-09
0.8531311.5702626.792425e-09
0.8555481.5702016.811676e-09
0.8579731.5701396.830981e-09
0.8604051.5700786.850341e-09
0.8628431.5700186.869756e-09
0.8652881.5699576.889226e-09
0.8677411.5698976.908751e-09
0.87021.5698376.928331e-09
0.8726661.5697776.947967e-09
0.8751391.5697176.967659e-09
0.8776191.5696586.987406e-09
0.8801071.5695997.007209e-09
0.8826011.569547.027069e-09
0.8851021.5694817.046984e-09
0.8876111.5694227.066956e-09
0.8901261.5693647.086985e-09
0.8926491.5693067.107071e-09
0.8951791.5692487.127213e-09
0.8977161.569197.147413e-09
0.91.5691397.165600e-09
0.900261.5691337.167669e-09
0.9028111.5690767.187981e-09
0.905371.5690187.208350e-09
0.9079361.5689627.228777e-09
0.9105091.5689057.249262e-09
0.9130891.5688487.269804e-09
0.9156771.5687927.290406e-09
0.9182721.5687367.311065e-09
0.9208751.568687.331783e-09
0.9234841.5686247.352560e-09
0.9261021.5685697.373395e-09
0.9287261.5685137.394290e-09
0.9313581.5684587.415244e-09
0.9339981.5684037.436257e-09
0.9366451.5683487.457330e-09
0.9392991.5682937.478462e-09
0.9419611.5682397.499655e-09
0.9446311.5681857.520907e-09
0.9473081.568137.542220e-09
0.9499931.5680767.563593e-09
0.9526851.5680237.585027e-09
0.9553851.5679697.606521e-09
0.9580931.5679157.628077e-09
0.9608081.5678627.649693e-09
0.9635311.5678097.671371e-09
0.9662621.5677567.693110e-09
0.9691.5677037.714911e-09
0.9717461.567657.736773e-09
0.97451.5675977.758698e-09
0.9772621.5675457.780684e-09
0.9800321.5674927.802733e-09
0.9828091.567447.824845e-09
0.9855951.5673887.847019e-09
0.9883881.5673367.869256e-09
0.9911891.5672847.891556e-09
0.9939981.5672337.913919e-09
0.9968151.5671817.936345e-09
0.999641.567137.958835e-09
11.5671237.961700e-09
1.002471.5670797.981392e-09
1.005311.5670278.004012e-09
1.008161.5669768.026697e-09
1.011021.5669258.049446e-09
1.013891.5668758.072259e-09
1.016761.5668248.095138e-09
1.019641.5667738.118080e-09
1.022531.5667238.141088e-09
1.025431.5666738.164162e-09
1.028331.5666228.187300e-09
1.031251.5665728.210504e-09
1.034171.5665228.233774e-09
1.03711.5664728.257110e-09
1.040041.5664238.280512e-09
1.042991.5663738.303980e-09
1.045951.5663238.327515e-09
1.048911.5662748.351117e-09
1.051881.5662248.374785e-09
1.054861.5661758.398521e-09
1.057851.5661268.422323e-09
1.060851.5660778.446194e-09
1.063861.5660288.470131e-09
1.066871.5659798.494137e-09
1.06991.565938.518211e-09
1.072931.5658818.542353e-09
1.075971.5658328.566563e-09
1.079021.5657848.590842e-09
1.082081.5657358.615190e-09
1.085141.5656878.639607e-09
1.088221.5656388.664093e-09
1.09131.565598.688648e-09
1.09441.5655428.713273e-09
1.09751.5654938.737968e-09
1.100611.5654458.762733e-09
1.103731.5653978.787568e-09
1.106851.5653498.812473e-09
1.109991.5653018.837449e-09
1.113141.5652538.862496e-09
1.116291.5652058.887613e-09
1.119461.5651588.912802e-09
1.122631.565118.938063e-09
1.125811.5650628.963394e-09
1.1291.5650158.988798e-09

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
—