Optical constants

Refractive index of MP-TAFD305 (HOYA)

MP-TAFD305: n,k 0.365–1.014 µm

Data
formula 3 + tabulated k
Range
0.365–1.014 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–1.014 µm
Refractive index n
1.85134
Extinction coefficient k
4.67830e-09
Permittivity ε1
3.42747
Permittivity ε2
1.73223e-08
Absorption coefficient α
0.0010005 cm⁻¹
Penetration depth δ = λ/(2πk)
1.99901e+10 nm
Abbe number Vd
40.104
Chromatic dispersion dn/dλ
-0.108292 µm⁻¹
Group index ng
1.91498
Group velocity dispersion
205.176 fs²/mm
Dispersion parameter D
-1119.34 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

# MP-TAFD305 (HOYA): MP-TAFD305
hoya_mp_tafd305 = ls.fetch_refractiveindex("specs", "HOYA-optical", "MP-TAFD305", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hoya_mp_tafd305.range_nm)  # (365.01, 1013.98) nm
eps = hoya_mp_tafd305.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

Polynomial (formula 3), λ in µm
n2=3.327184−0.01343242⁢λ2.0+0.033398⁢λ−2.0+0.001006047⁢λ−4.0−2.136908×10-5⁢λ−6.0+3.972561×10-6⁢λ−8.0

Valid from 0.36501 to 1.01398 µm.

Coefficients as stored
CiValue
C13.327184
C2-0.01343242
C32.0
C40.033398
C5-2.0
C60.001006047
C7-4.0
C8-2.136908e-05
C9-6.0
C103.972561e-06
C11-8.0

Comments and conditions

Preforms for Precision molding

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 5.25e-06 1.17e-08 -4.51e-11 1.25e-06 1.27e-09 0.0455
nd
1.85135
Vd
40.10
glass code
851401
glass status
standard
density
value: 5250
thermal expansion
value: 6e-06, temperature range: 243 343; value: 7.8e-06, temperature range: 293 573
dPgF
-0.0067
resistance
acid: 3.0; stain: 2.0; climatic: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 5.47e-06 K⁻¹ at 633 nm

References

Cite

HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com); Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 421 wavelengths, the same grid as the API and the library
MP-TAFD305 (HOYA), MP-TAFD305: n and k versus wavelength
λ (µm)nk
0.365011.9069131.576612e-06
0.3659461.9063921.479459e-06
0.3668841.9058761.382057e-06
0.3678251.9053631.284405e-06
0.3687681.9048541.186503e-06
0.3697131.9043491.088349e-06
0.371.9041971.058600e-06
0.3706611.9038471.028277e-06
0.3716121.903359.847025e-07
0.3725651.9028569.410166e-07
0.373521.9023658.972187e-07
0.3744771.9018798.533085e-07
0.3754381.9013958.092857e-07
0.37641.9009167.651501e-07
0.3773651.900447.209013e-07
0.3783331.8999676.765390e-07
0.3793031.8994986.320630e-07
0.381.8991636.001000e-07
0.3802751.8990325.937259e-07
0.381251.8985695.711592e-07
0.3822281.898115.485346e-07
0.3832081.8976545.258521e-07
0.384191.8972015.031113e-07
0.3851761.8967524.803123e-07
0.3861631.8963064.574548e-07
0.3871531.8958634.345388e-07
0.3881461.8954234.115639e-07
0.3891411.8949863.885302e-07
0.391.8946133.686500e-07
0.3901391.8945523.668820e-07
0.3911391.8941223.541412e-07
0.3921421.8936943.413677e-07
0.3931471.893273.285614e-07
0.3941551.8928483.157223e-07
0.3951661.8924293.028502e-07
0.3961791.8920132.899452e-07
0.3971951.89162.770071e-07
0.3982131.891192.640358e-07
0.3992341.8907832.510312e-07
0.41.890482.412800e-07
0.4002581.8903792.398824e-07
0.4012841.8899772.343243e-07
0.4023131.8895782.287519e-07
0.4033451.8891822.231652e-07
0.4043791.8887882.175641e-07
0.4054161.8883982.119488e-07
0.4064551.8880092.063190e-07
0.4074971.8876242.006748e-07
0.4085421.8872411.950161e-07
0.409591.8868611.893429e-07
0.410641.8864831.836551e-07
0.4116931.8861081.779528e-07
0.4127481.8857351.722358e-07
0.4138061.8853651.665042e-07
0.4148671.8849971.607579e-07
0.4159311.8846321.549969e-07
0.4169981.8842691.492211e-07
0.4180671.8839081.434305e-07
0.4191391.883551.376250e-07
0.421.8832651.329600e-07
0.4202131.8831941.324491e-07
0.4212911.8828411.298686e-07
0.4223711.882491.272816e-07
0.4234541.8821411.246879e-07
0.424541.8817951.220875e-07
0.4256281.8814511.194805e-07
0.4267191.8811091.168668e-07
0.4278131.8807691.142463e-07
0.428911.8804311.116192e-07
0.430011.8800961.089854e-07
0.4311131.8797631.063447e-07
0.4322181.8794321.036973e-07
0.4333261.8791031.010432e-07
0.4344371.8787769.838219e-08
0.4355511.8784529.571438e-08
0.4366681.8781299.303974e-08
0.4377871.8778099.035823e-08
0.438911.877498.766986e-08
0.441.8771848.505900e-08
0.4400351.8771748.501315e-08
0.4411631.8768598.354554e-08
0.4422951.8765478.207417e-08
0.4434291.8762368.059903e-08
0.4445661.8759287.912010e-08
0.4457051.8756217.763738e-08
0.4468481.8753177.615086e-08
0.4479941.8750147.466053e-08
0.4491431.8747137.316637e-08
0.4502941.8744157.166839e-08
0.4514491.8741187.016656e-08
0.4526061.8738226.866089e-08
0.4537671.8735296.715135e-08
0.454931.8732386.563795e-08
0.4560971.8729486.412066e-08
0.4572661.872666.259948e-08
0.4584381.8723746.107441e-08
0.4596141.872095.954542e-08
0.461.8719975.904300e-08
0.4607921.8718075.822490e-08
0.4619741.8715265.700481e-08
0.4631581.8712475.578159e-08
0.4643461.870975.455524e-08
0.4655361.8706945.332574e-08
0.466731.870425.209309e-08
0.4679271.8701485.085727e-08
0.4691261.8698774.961829e-08
0.4703291.8696094.837614e-08
0.4715351.8693414.713080e-08
0.4727441.8690754.588226e-08
0.4739561.8688114.463053e-08
0.4751711.8685494.337558e-08
0.476391.8682884.211742e-08
0.4776111.8680294.085603e-08
0.4788361.8677713.959141e-08
0.481.8675283.838900e-08
0.4800631.8675153.833054e-08
0.4812941.867263.719537e-08
0.4825281.8670073.605730e-08
0.4837651.8667553.491630e-08
0.4850061.8665053.377238e-08
0.4862491.8662563.262553e-08
0.4874961.8660093.147573e-08
0.4887461.8657643.032299e-08
0.4899991.8655192.916729e-08
0.4912551.8652772.800863e-08
0.4925151.8650352.684700e-08
0.4937781.8647962.568239e-08
0.4950441.8645572.451479e-08
0.4963131.864322.334420e-08
0.4975861.8640842.217061e-08
0.4988611.863852.099401e-08
0.51.8636431.994400e-08
0.5001411.8636171.990025e-08
0.5014231.8633861.950106e-08
0.5027091.8631551.910084e-08
0.5039971.8629271.869960e-08
0.505291.8626991.829733e-08
0.5065851.8624731.789402e-08
0.5078841.8622481.748968e-08
0.5091861.8620251.708431e-08
0.5104921.8618021.667790e-08
0.5118011.8615811.627044e-08
0.5131131.8613621.586194e-08
0.5144291.8611431.545239e-08
0.5157481.8609261.504179e-08
0.517071.860711.463014e-08
0.5183961.8604961.421744e-08
0.5197251.8602821.380367e-08
0.5210571.860071.338885e-08
0.5223931.8598591.297296e-08
0.5237331.859651.255600e-08
0.5250761.8594411.213798e-08
0.5264221.8592341.171888e-08
0.5277721.8590271.129871e-08
0.5291251.8588221.087747e-08
0.5304811.8586191.045514e-08
0.5318421.8584161.003173e-08
0.5332051.8582149.607232e-09
0.5345721.8580149.181647e-09
0.5359431.8578158.754971e-09
0.5373171.8576178.327202e-09
0.5386951.857427.898335e-09
0.5400761.8572247.468369e-09
0.5414611.8570297.037300e-09
0.5428491.8568356.605126e-09
0.5442411.8566436.171844e-09
0.5456361.8564515.737451e-09
0.5470351.8562615.301945e-09
0.5484381.8560714.865321e-09
0.5498441.8558834.427579e-09
0.551.8558624.379000e-09
0.5512541.8556964.388980e-09
0.5526671.8555094.400230e-09
0.5540841.8553244.411510e-09
0.5555051.855144.422818e-09
0.5569291.8549574.434156e-09
0.5583571.8547754.445522e-09
0.5597891.8545934.456918e-09
0.5612241.8544134.468343e-09
0.5626631.8542344.479797e-09
0.5641061.8540564.491280e-09
0.5655521.8538794.502793e-09
0.5670021.8537024.514336e-09
0.5684561.8535274.525908e-09
0.5699131.8533534.537509e-09
0.5713741.8531794.549141e-09
0.5728391.8530074.560802e-09
0.5743081.8528364.572493e-09
0.5757811.8526654.584214e-09
0.5772571.8524954.595966e-09
0.5787371.8523274.607747e-09
0.5802211.8521594.619558e-09
0.5817091.8519924.631400e-09
0.58321.8518264.643272e-09
0.5846951.8516614.655175e-09
0.5861951.8514974.667108e-09
0.5876971.8513334.679072e-09
0.5892041.8511714.691066e-09
0.5907151.8510094.703092e-09
0.592231.8508494.715148e-09
0.5937481.8506894.727235e-09
0.595271.850534.739352e-09
0.5967971.8503724.751501e-09
0.5983271.8502144.763682e-09
0.5998611.8500584.775893e-09
0.61.8500444.777000e-09
0.6013991.8499024.788138e-09
0.6029411.8497474.800416e-09
0.6044871.8495934.812724e-09
0.6060371.849444.825064e-09
0.6075911.8492884.837436e-09
0.6091481.8491364.849840e-09
0.610711.8489854.862275e-09
0.6122761.8488354.874742e-09
0.6138461.8486864.887241e-09
0.615421.8485384.899773e-09
0.6169981.848394.912336e-09
0.618581.8482434.924932e-09
0.6201661.8480974.937560e-09
0.6217561.8479514.950220e-09
0.623351.8478074.962913e-09
0.6249481.8476634.975638e-09
0.6265511.847524.988396e-09
0.6281571.8473775.001186e-09
0.6297681.8472365.014010e-09
0.6313821.8470955.026866e-09
0.6330011.8469555.039755e-09
0.6346241.8468155.052677e-09
0.6362511.8466765.065633e-09
0.6378831.8465385.078621e-09
0.6395181.8464015.091643e-09
0.6411581.8462645.104699e-09
0.6428021.8461285.117788e-09
0.644451.8459935.130910e-09
0.6461021.8458585.144066e-09
0.6477591.8457245.157256e-09
0.649421.8455915.170479e-09
0.651.8455455.175100e-09
0.6510851.8454585.183737e-09
0.6527541.8453265.197028e-09
0.6544281.8451955.210354e-09
0.6561061.8450645.223713e-09
0.6577881.8449345.237107e-09
0.6594741.8448055.250535e-09
0.6611651.8446765.263998e-09
0.6628611.8445485.277495e-09
0.664561.8444215.291027e-09
0.6662641.8442945.304594e-09
0.6679721.8441685.318195e-09
0.6696851.8440425.331831e-09
0.6714021.8439185.345502e-09
0.6731231.8437935.359209e-09
0.6748491.843675.372950e-09
0.676581.8435465.386727e-09
0.6783141.8434245.400539e-09
0.6800531.8433025.414386e-09
0.6817971.8431815.428269e-09
0.6835451.843065.442187e-09
0.6852981.842945.456141e-09
0.6870551.842825.470131e-09
0.6888161.8427015.484157e-09
0.6905831.8425835.498219e-09
0.6923531.8424655.512316e-09
0.6941281.8423485.526450e-09
0.6959081.8422315.540620e-09
0.6976921.8421155.554827e-09
0.6994811.8419995.569070e-09
0.71.8419665.573200e-09
0.7012751.8418846.193795e-09
0.7030731.841777.069184e-09
0.7048751.8416567.946818e-09
0.7066831.8415428.826702e-09
0.7084951.8414299.708842e-09
0.7103111.8413171.059324e-08
0.7121321.8412051.147991e-08
0.7139581.8410941.236886e-08
0.7157891.8409831.326008e-08
0.7176241.8408731.415358e-08
0.7194641.8407631.504938e-08
0.7213091.8406541.594748e-08
0.7231581.8405451.684787e-08
0.7250121.8404371.775058e-08
0.7268711.8403291.865560e-08
0.7287351.8402221.956294e-08
0.7306031.8401152.047261e-08
0.7324771.8400082.138461e-08
0.7343551.8399032.229895e-08
0.7362371.8397972.321563e-08
0.7381251.8396922.413466e-08
0.7400181.8395882.505605e-08
0.7419151.8394842.597980e-08
0.7438171.839382.690592e-08
0.7457241.8392772.783442e-08
0.7476361.8391752.876529e-08
0.7495531.8390732.969855e-08
0.751.8390492.991600e-08
0.7514751.8389712.997486e-08
0.7534021.838873.005174e-08
0.7553341.8387693.012881e-08
0.757271.8386693.020608e-08
0.7592121.8385693.028356e-08
0.7611591.838473.036122e-08
0.763111.8383713.043909e-08
0.7650671.8382723.051716e-08
0.7670281.8381743.059543e-08
0.7689951.8380763.067390e-08
0.7709671.8379793.075257e-08
0.7729431.8378823.083144e-08
0.7749251.8377863.091051e-08
0.7769121.8376893.098979e-08
0.7789041.8375943.106927e-08
0.781.8375413.111300e-08
0.7809011.8374993.143735e-08
0.7829031.8374043.215804e-08
0.7849111.8373093.288058e-08
0.7869231.8372153.360497e-08
0.7889411.8371223.433123e-08
0.7909641.8370283.505934e-08
0.7929921.8369353.578932e-08
0.7950251.8368433.652117e-08
0.7970631.8367513.725490e-08
0.7991071.8366593.799051e-08
0.81.8366193.831200e-08
0.8011561.8365683.785591e-08
0.803211.8364773.704528e-08
0.8052691.8363863.623257e-08
0.8073341.8362963.541778e-08
0.8094041.8362063.460089e-08
0.8114791.8361163.378192e-08
0.813561.8360273.296084e-08
0.8156461.8359383.213766e-08
0.8177371.835853.131237e-08
0.8198341.8357623.048496e-08
0.8219361.8356742.965543e-08
0.8240431.8355872.882377e-08
0.8261561.83552.798998e-08
0.8282741.8354132.715406e-08
0.831.8353432.647300e-08
0.8303981.8353272.675617e-08
0.8325271.835242.827146e-08
0.8346621.8351552.979063e-08
0.8368021.8350693.131370e-08
0.8389471.8349843.284068e-08
0.8410981.83493.437157e-08
0.8432551.8348153.590638e-08
0.8454171.8347313.744513e-08
0.8475841.8346473.898783e-08
0.8497581.8345644.053448e-08
0.851.8345544.070700e-08
0.8519361.8344814.107889e-08
0.8541211.8343984.149842e-08
0.8563111.8343154.191902e-08
0.8585061.8342334.234070e-08
0.8607071.8341514.276345e-08
0.8629141.8340694.318730e-08
0.8651271.8339884.361223e-08
0.8673451.8339074.403825e-08
0.8695691.8338264.446536e-08
0.8717981.8337464.489356e-08
0.8740331.8336654.532287e-08
0.8762741.8335854.575327e-08
0.8785211.8335064.618478e-08
0.8807741.8334264.661740e-08
0.8830321.8333474.705112e-08
0.8852961.8332694.748596e-08
0.8875661.833194.792191e-08
0.8898421.8331124.835898e-08
0.8921231.8330344.879717e-08
0.8944111.8329564.923648e-08
0.8967041.8328784.967692e-08
0.8990031.8328015.011849e-08
0.91.8327685.031000e-08
0.9013081.8327245.018408e-08
0.9036191.8326484.996158e-08
0.9059361.8325714.973852e-08
0.9082581.8324954.951488e-08
0.9105871.8324194.929067e-08
0.9129221.8323434.906588e-08
0.9152631.8322684.884052e-08
0.9176091.8321934.861458e-08
0.9199621.8321184.838806e-08
0.9223211.8320434.816096e-08
0.9246861.8319684.793327e-08
0.9270561.8318944.770501e-08
0.9294331.831824.747615e-08
0.9318161.8317464.724671e-08
0.9342061.8316734.701669e-08
0.9366011.8315994.678607e-08
0.9390021.8315264.655486e-08
0.941411.8314534.632306e-08
0.9438241.831384.609067e-08
0.9462441.8313084.585768e-08
0.948671.8312364.562409e-08
0.951.8311964.549600e-08
0.9511021.8311644.572530e-08
0.9535411.8310924.623273e-08
0.9559851.831024.674145e-08
0.9584371.8309494.725148e-08
0.9608941.8308774.776281e-08
0.9633581.8308064.827546e-08
0.9658281.8307354.878942e-08
0.9683041.8306654.930470e-08
0.9707871.8305944.982130e-08
0.9732761.8305245.033923e-08
0.9757711.8304545.085848e-08
0.9782731.8303845.137906e-08
0.9807811.8303145.190098e-08
0.9832961.8302455.242424e-08
0.9858171.8301755.294884e-08
0.9883451.8301065.347478e-08
0.9908791.8300375.400207e-08
0.9934191.8299685.453072e-08
0.9959671.82995.506072e-08
0.998521.8298315.559208e-08
11.8297925.590000e-08
1.001081.8297635.577868e-08
1.003651.8296955.549043e-08
1.006221.8296275.520145e-08
1.00881.8295595.491173e-08
1.011391.8294925.462126e-08
1.013981.8294245.433005e-08

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
—