Optical constants

Refractive index of K-PMK30(M) (SUMITA)

K-PMK30(M): n,k 0.36–1.55 µm

Data
formula 3 + tabulated k
Range
0.36–1.55 µm
Temperature
293 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.36–1.55 µm
Refractive index n
1.52003
Extinction coefficient k
1.04495e-08
Permittivity ε1
2.31048
Permittivity ε2
3.17670e-08
Absorption coefficient α
0.00223472 cm⁻¹
Penetration depth δ = λ/(2πk)
8.94966e+09 nm
Abbe number Vd
70.11
Chromatic dispersion dn/dλ
-0.0385527 µm⁻¹
Group index ng
1.54268
Group velocity dispersion
63.8634 fs²/mm
Dispersion parameter D
-348.408 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

# K-PMK30(M) (SUMITA): K-PMK30(M)
sumita_k_pmk30_m = ls.fetch_refractiveindex("specs", "SUMITA-optical", "K-PMK30(M)", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(sumita_k_pmk30_m.range_nm)  # (360, 1550) nm
eps = sumita_k_pmk30_m.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=2.2835931−0.0098380554⁢λ2.0+0.010317986⁢λ−2.0−3.5867157×10-6⁢λ−4.0+2.1079335×10-5⁢λ−6.0−1.145809×10-6⁢λ−8.0

Valid from 0.36 to 1.55 µm.

Coefficients as stored
CiValue
C12.2835931
C2-0.0098380554
C32.0
C40.010317986
C5-2.0
C6-3.5867157e-06
C7-4.0
C82.1079335e-05
C9-6.0
C10-1.145809e-06
C11-8.0

Comments and conditions

Conditions

temperature
293 K

Properties

thermal dispersion
type: formula A, coefficients: 3.49e-07 1.51e-08 -7.35e-11 3.65e-07 5.07e-10 0.174
nd
1.52002
Vd
70.2
glass code
525704
density
value: 2600
thermal expansion
value: 8.3e-06, temperature range: 243 343; value: 8.7e-06, temperature range: 293 573
dPgF
0.0069
resistance
acid: 1.0; climatic: 2.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 293.0 K): dn/dT = 5.74e-07 K⁻¹ at 633 nm, dn/dT = 2.39e-07 K⁻¹ at 1310 nm, dn/dT = 2.11e-07 K⁻¹ at 1550 nm

References

Cite

SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp); See also SUMITA optical glass data book; 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
K-PMK30(M) (SUMITA), K-PMK30(M): n and k versus wavelength
λ (µm)nk
0.361.5386179.909700e-08
0.361321.5383969.865664e-08
0.3626441.5381769.821467e-08
0.3639731.5379599.777108e-08
0.3653081.5377439.732586e-08
0.3666471.5375299.687901e-08
0.3679911.5373169.643052e-08
0.369341.5371059.598039e-08
0.371.5370039.576000e-08
0.3706931.5368969.378441e-08
0.3720521.5366888.991299e-08
0.3734161.5364828.602739e-08
0.3747851.5362788.212754e-08
0.3761591.5360757.821340e-08
0.3775371.5358737.428491e-08
0.3789211.5356747.034202e-08
0.381.535526.726900e-08
0.380311.5354756.702892e-08
0.3817041.5352796.595060e-08
0.3831041.5350846.486834e-08
0.3845081.534896.378210e-08
0.3859171.5346986.269189e-08
0.3873321.5345076.159767e-08
0.3887521.5343186.049945e-08
0.391.5341545.953400e-08
0.3901771.5341315.933193e-08
0.3916071.5339455.769774e-08
0.3930431.533765.605755e-08
0.3944831.5335775.441136e-08
0.3959291.5333955.275914e-08
0.3973811.5332145.110085e-08
0.3988371.5330354.943649e-08
0.41.5328944.810800e-08
0.4002991.5328584.799190e-08
0.4017671.5326824.742272e-08
0.4032391.5325074.685145e-08
0.4047171.5323334.627809e-08
0.4062011.5321614.570263e-08
0.407691.5319914.512505e-08
0.4091841.5318214.454536e-08
0.4106841.5316534.396354e-08
0.412191.5314864.337960e-08
0.4137011.5313214.279351e-08
0.4152171.5311564.220527e-08
0.4167391.5309944.161487e-08
0.4182671.5308324.102232e-08
0.41981.5306714.042759e-08
0.421.5306514.035000e-08
0.4213391.5305124.071596e-08
0.4228831.5303544.113814e-08
0.4244331.5301984.156187e-08
0.4259891.5300424.198715e-08
0.4275511.5298884.241399e-08
0.4291181.5297354.284239e-08
0.4306911.5295834.327237e-08
0.432271.5294324.370392e-08
0.4338541.5292824.413705e-08
0.4354451.5291344.457177e-08
0.4370411.5289864.500808e-08
0.4386431.528844.544600e-08
0.441.5287184.581700e-08
0.4402511.5286954.584309e-08
0.4418641.5285514.601109e-08
0.4434841.5284084.617970e-08
0.445111.5282664.634893e-08
0.4467411.5281264.651878e-08
0.4483791.5279864.668925e-08
0.4500231.5278474.686035e-08
0.4516721.527714.703207e-08
0.4533281.5275734.720443e-08
0.454991.5274384.737741e-08
0.4566571.5273034.755103e-08
0.4583311.527174.772529e-08
0.461.5270384.789900e-08
0.4600111.5270384.789360e-08
0.4616981.5269064.709180e-08
0.463391.5267764.628706e-08
0.4650891.5266464.547937e-08
0.4667931.5265184.466872e-08
0.4685051.526394.385510e-08
0.4702221.5262634.303850e-08
0.4719461.5261384.221890e-08
0.4736751.5260134.139630e-08
0.4754121.5258894.057068e-08
0.4771541.5257663.974204e-08
0.4789041.5256443.891036e-08
0.481.5255683.838900e-08
0.4806591.5255233.830936e-08
0.4824211.5254033.809643e-08
0.4841891.5252833.788272e-08
0.4859641.5251653.766823e-08
0.4877461.5250473.745295e-08
0.4895331.524933.723689e-08
0.4913281.5248153.702003e-08
0.4931291.5246993.680238e-08
0.4949361.5245853.658393e-08
0.4967511.5244723.636467e-08
0.4985721.5243593.614462e-08
0.51.5242723.597200e-08
0.5003991.5242473.578979e-08
0.5022331.5241363.495256e-08
0.5040741.5240263.411225e-08
0.5059221.5239173.326887e-08
0.5077771.5238083.242239e-08
0.5096381.52373.157281e-08
0.5115061.5235933.072012e-08
0.5133811.5234862.986430e-08
0.5152631.5233812.900535e-08
0.5171521.5232762.814325e-08
0.5190471.5231722.727798e-08
0.520951.5230682.640955e-08
0.522861.5229662.553793e-08
0.5247761.5228642.466311e-08
0.52671.5227622.378509e-08
0.5286311.5226622.290385e-08
0.5305681.5225622.201938e-08
0.5325131.5224622.113167e-08
0.5344651.5223642.024071e-08
0.5364241.5222661.934648e-08
0.5383911.5221691.844897e-08
0.5403641.5220721.754817e-08
0.5423451.5219761.664407e-08
0.5443331.5218811.573665e-08
0.5463281.5217861.482591e-08
0.5483311.5216921.391183e-08
0.551.5216151.315000e-08
0.5503411.5215991.312552e-08
0.5523581.5215061.298063e-08
0.5543831.5214141.283521e-08
0.5564151.5213231.268925e-08
0.5584551.5212321.254276e-08
0.5605021.5211411.239574e-08
0.5625561.5210521.224817e-08
0.5646191.5209621.210007e-08
0.5666881.5208741.195142e-08
0.5687651.5207861.180223e-08
0.570851.5206981.165249e-08
0.5729431.5206121.150220e-08
0.5750431.5205251.135136e-08
0.5771511.520441.119997e-08
0.5792671.5203541.104802e-08
0.581391.520271.089552e-08
0.5835211.5201851.074245e-08
0.585661.5201021.058883e-08
0.5878071.5200191.043464e-08
0.5899611.5199361.027989e-08
0.5921241.5198541.012457e-08
0.5942951.5197739.968677e-09
0.5964731.5196919.812216e-09
0.5986591.5196119.655181e-09
0.61.5195629.558900e-09
0.6008541.5195319.572496e-09
0.6030561.5194519.607564e-09
0.6052671.5193729.642761e-09
0.6074861.5192949.678087e-09
0.6097121.5192159.713542e-09
0.6119471.5191389.749127e-09
0.6141911.519069.784843e-09
0.6164421.5189849.820689e-09
0.6187021.5189079.856667e-09
0.620971.5188329.892777e-09
0.6232461.5187569.929019e-09
0.625531.5186819.965394e-09
0.6278231.5186071.000190e-08
0.6301251.5185321.003854e-08
0.6324341.5184591.007532e-08
0.6347531.5183861.011223e-08
0.6370791.5183131.014928e-08
0.6394151.518241.018646e-08
0.6417591.5181681.022378e-08
0.6441111.5180971.026124e-08
0.6464721.5180251.029883e-08
0.6488421.5179541.033656e-08
0.651.517921.035500e-08
0.651221.5178841.037445e-08
0.6536071.5178141.041250e-08
0.6560031.5177441.045069e-08
0.6584081.5176751.048902e-08
0.6608211.5176061.052749e-08
0.6632441.5175371.056610e-08
0.6656751.5174691.060486e-08
0.6681151.5174011.064375e-08
0.6705641.5173341.068279e-08
0.6730221.5172671.072197e-08
0.6754891.51721.076130e-08
0.6779651.5171331.080077e-08
0.680451.5170671.084038e-08
0.6829451.5170011.088014e-08
0.6854481.5169361.092004e-08
0.6879611.5168711.096009e-08
0.6904821.5168061.100029e-08
0.6930131.5167421.104063e-08
0.6955541.5166771.108113e-08
0.6981031.5166141.112177e-08
0.71.5165661.115200e-08
0.7006621.516551.116255e-08
0.7032311.5164871.120347e-08
0.7058091.5164241.124453e-08
0.7083961.5163611.128574e-08
0.7109921.5162991.132711e-08
0.7135991.5162371.136863e-08
0.7162141.5161751.141030e-08
0.718841.5161141.145212e-08
0.7214751.5160521.149409e-08
0.7241191.5159921.153622e-08
0.7267741.5159311.157851e-08
0.7294381.515871.162095e-08
0.7321121.515811.166354e-08
0.7347951.515751.170629e-08
0.7374891.5156911.174920e-08
0.7401921.5156321.179226e-08
0.7429051.5155721.183548e-08
0.7456291.5155141.187886e-08
0.7483621.5154551.192240e-08
0.7511051.5153971.196610e-08
0.7538581.5153381.200996e-08
0.7566221.5152811.205398e-08
0.7593951.5152231.209816e-08
0.7621791.5151651.214251e-08
0.7649731.5151081.218701e-08
0.7677771.5150511.223168e-08
0.7705911.5149941.227652e-08
0.7734161.5149381.232151e-08
0.7762511.5148821.236668e-08
0.7790961.5148251.241200e-08
0.7819521.514771.245750e-08
0.7848181.5147141.250316e-08
0.7876951.5146581.254899e-08
0.7905831.5146031.259498e-08
0.7934811.5145481.264115e-08
0.7963891.5144931.268748e-08
0.7993091.5144381.273398e-08
0.81.5144251.274500e-08
0.8022381.5143831.278066e-08
0.8051791.5143291.282751e-08
0.8081311.5142751.287453e-08
0.8110931.5142211.292172e-08
0.8140661.5141671.296908e-08
0.817051.5141131.301662e-08
0.8200451.514061.306433e-08
0.8230511.5140061.311222e-08
0.8260681.5139531.316028e-08
0.8290961.51391.320852e-08
0.8321351.5138471.325694e-08
0.8351861.5137941.330553e-08
0.8382471.5137411.335431e-08
0.841321.5136891.340326e-08
0.8444041.5136371.345239e-08
0.8474991.5135841.350169e-08
0.8506061.5135321.355119e-08
0.8537241.513481.360086e-08
0.8568531.5134291.365071e-08
0.8599941.5133771.370075e-08
0.8631461.5133251.375097e-08
0.866311.5132741.380137e-08
0.8694861.5132231.385196e-08
0.8726731.5131711.390274e-08
0.8758721.513121.395370e-08
0.8790821.5130691.400484e-08
0.8823051.5130181.405618e-08
0.8855391.5129681.410770e-08
0.8887851.5129171.415941e-08
0.8920431.5128661.421132e-08
0.8953131.5128161.426341e-08
0.8985951.5127651.431569e-08
0.9018891.5127151.436817e-08
0.9051951.5126651.442083e-08
0.9085131.5126151.447369e-08
0.9118431.5125651.452675e-08
0.9151861.5125151.457999e-08
0.918541.5124651.463344e-08
0.9219071.5124151.468708e-08
0.9252871.5123651.474091e-08
0.9286781.5123151.479494e-08
0.9320831.5122661.484918e-08
0.9354991.5122161.490361e-08
0.9389281.5121671.495824e-08
0.942371.5121171.501307e-08
0.9458241.5120681.506810e-08
0.9492911.5120181.512333e-08
0.9527711.5119691.517876e-08
0.9562641.511921.523440e-08
0.9597691.5118711.529024e-08
0.9632871.5118221.534629e-08
0.9668181.5117721.540254e-08
0.9703621.5117231.545900e-08
0.9739191.5116741.551567e-08
0.9774891.5116251.557254e-08
0.9810721.5115761.562962e-08
0.9846681.5115271.568691e-08
0.9882781.5114781.574441e-08
0.9919011.5114291.580212e-08
0.9955361.511381.586005e-08
0.9991861.5113311.591818e-08
1.002851.5112821.597653e-08
1.006521.5112331.603509e-08
1.010211.5111851.609387e-08
1.013921.5111361.615286e-08
1.017631.5110871.621207e-08
1.021361.5110381.627150e-08
1.025111.5109891.633114e-08
1.028871.510941.639100e-08
1.032641.5108911.645108e-08
1.036421.5108421.651139e-08
1.040221.5107931.657191e-08
1.044031.5107441.663265e-08
1.047861.5106951.669362e-08
1.05171.5106461.675481e-08
1.055561.5105971.681623e-08
1.059431.5105481.687787e-08
1.061.5105411.688700e-08
1.063311.5104991.903357e-08
1.067211.510452.156107e-08
1.071121.5104012.409783e-08
1.075051.5103512.664389e-08
1.078991.5103022.919929e-08
1.082941.5102533.176405e-08
1.086911.5102033.433821e-08
1.09091.5101543.692181e-08
1.094891.5101043.951488e-08
1.098911.5100554.211746e-08
1.102941.5100054.472957e-08
1.106981.5099564.735126e-08
1.111041.5099064.998257e-08
1.115111.5098565.262351e-08
1.11921.5098065.527414e-08
1.12331.5097565.793448e-08
1.127421.5097066.060457e-08
1.131551.5096566.328446e-08
1.13571.5096066.597416e-08
1.139861.5095566.867373e-08
1.144041.5095067.138319e-08
1.148231.5094557.410258e-08
1.152441.5094057.683194e-08
1.156671.5093547.957130e-08
1.160911.5093038.232071e-08
1.165161.5092538.508020e-08
1.169431.5092028.784980e-08
1.173721.5091519.062955e-08
1.178021.50919.341949e-08
1.182341.5090489.621966e-08
1.186671.5089979.903009e-08
1.191021.5089451.018508e-07
1.195391.5088941.046819e-07
1.199771.5088421.075234e-07
1.204171.508791.103752e-07
1.208581.5087381.132375e-07
1.213011.5086861.161104e-07
1.217461.5086341.189937e-07
1.221921.5085821.218876e-07
1.22641.5085291.247921e-07
1.23091.5084771.277073e-07
1.235411.5084241.306332e-07
1.239941.5083711.335697e-07
1.244481.5083181.365171e-07
1.249041.5082651.394752e-07
1.253621.5082111.424442e-07
1.258221.5081581.454241e-07
1.262831.5081041.484149e-07
1.267461.508051.514167e-07
1.272111.5079961.544294e-07
1.276771.5079421.574532e-07
1.281451.5078871.604881e-07
1.286151.5078331.635341e-07
1.290861.5077781.665913e-07
1.295591.5077231.696597e-07
1.300341.5076681.727393e-07
1.305111.5076131.758303e-07
1.309891.5075571.789325e-07
1.314691.5075021.820461e-07
1.319511.5074461.851712e-07
1.324351.507391.883077e-07
1.32921.5073331.914557e-07
1.334081.5072771.946152e-07
1.338971.507221.977863e-07
1.343881.5071632.009691e-07
1.34881.5071062.041635e-07
1.353751.5070492.073696e-07
1.358711.5069912.105874e-07
1.363691.5069332.138171e-07
1.368691.5068752.170586e-07
1.37371.5068172.203120e-07
1.378741.5067592.235773e-07
1.383791.50672.268546e-07
1.388871.5066412.301439e-07
1.393961.5065822.334452e-07
1.399071.5065222.367587e-07
1.40421.5064632.400843e-07
1.409341.5064032.434220e-07
1.414511.5063422.467721e-07
1.419691.5062822.501344e-07
1.42491.5062212.535090e-07
1.430121.506162.568960e-07
1.435361.5060992.602954e-07
1.440621.5060372.637073e-07
1.445911.5059752.671316e-07
1.451211.5059132.705686e-07
1.456521.5058512.740181e-07
1.461861.5057882.774803e-07
1.467221.5057252.809551e-07
1.47261.5056622.844427e-07
1.4781.5055982.879431e-07
1.483421.5055352.914563e-07
1.488851.505472.949824e-07
1.494311.5054062.985215e-07
1.499791.5053413.020735e-07
1.51.5053393.022100e-07
1.505291.5052763.267620e-07
1.51081.5052113.523855e-07
1.516341.5051453.781029e-07
1.52191.5050794.039145e-07
1.527481.5050124.298208e-07
1.533081.5049464.558220e-07
1.53871.5048794.819186e-07
1.544341.5048115.081108e-07
1.551.5047435.343990e-07

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
—