Optical constants

Refractive index of Q-SF6S (HIKARI)

Q-SF6S: n,k 0.3889–2.058 µm

Data
formula 3 + tabulated k
Range
0.3889–2.058 µm
Temperature
296 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.3889–2.058 µm
Refractive index n
1.803
Extinction coefficient k
5.64509e-08
Permittivity ε1
3.25082
Permittivity ε2
2.03562e-07
Absorption coefficient α
0.0120725 cm⁻¹
Penetration depth δ = λ/(2πk)
1.65665e+09 nm
Abbe number Vd
25.532
Chromatic dispersion dn/dλ
-0.157327 µm⁻¹
Group index ng
1.89545
Group velocity dispersion
325.229 fs²/mm
Dispersion parameter D
-1774.3 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

# Q-SF6S (HIKARI): Q-SF6S
hikari_q_sf6s = ls.fetch_refractiveindex("specs", "HIKARI-optical", "Q-SF6S", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_q_sf6s.range_nm)  # (388.887, 2058.09) nm
eps = hikari_q_sf6s.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=3.11291202−0.0125998729⁢λ2.0+0.0420929946⁢λ−2.0+0.0028996124⁢λ−4.0−0.000373431538⁢λ−6.0+9.67592867×10-5⁢λ−8.0−9.85184772×10-6⁢λ−10.0+5.06525233×10-7⁢λ−12.0

Valid from 0.3888865 to 2.05809 µm.

Coefficients as stored
CiValue
C13.11291202
C2-0.0125998729
C32.0
C40.0420929946
C5-2.0
C60.0028996124
C7-4.0
C8-0.000373431538
C9-6.0
C109.67592867e-05
C11-8.0
C12-9.85184772e-06
C13-10.0
C145.06525233e-07
C15-12.0

Comments and conditions

For mold lens

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: -5.5552e-06 9.2292e-09 -5.7066e-13 1.0819e-06 1.6213e-09 0.28521
nd
1.803010
Vd
25.531943
density
value: 3340
thermal expansion
value: 8.6e-06, temperature range: 243 343
dPgF
0.0138
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = -1.34e-06 K⁻¹ at 633 nm, dn/dT = -2.93e-06 K⁻¹ at 1310 nm, dn/dT = -3.04e-06 K⁻¹ at 1550 nm

References

Cite

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com); See also HIKARI 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 419 wavelengths, the same grid as the API and the library
Q-SF6S (HIKARI), Q-SF6S: n and k versus wavelength
λ (µm)nk
0.3888871.8737481.171277e-06
0.391.8728661.062900e-06
0.3905141.8724641.040740e-06
0.3921481.8711999.702707e-07
0.3937891.8699558.995067e-07
0.3954371.8687318.284466e-07
0.3970921.8675257.570891e-07
0.3987541.8663386.854330e-07
0.41.8654636.316900e-07
0.4004221.865176.246968e-07
0.4020981.8640195.969525e-07
0.4037811.8628855.690922e-07
0.405471.8617685.411152e-07
0.4071671.8606685.130212e-07
0.4088711.8595844.848095e-07
0.4105821.8585164.564799e-07
0.41231.8574644.280316e-07
0.4140261.8564263.994644e-07
0.4157581.8554043.707775e-07
0.4174981.8543953.419707e-07
0.4192451.8534013.130432e-07
0.421.8529783.005500e-07
0.4211.8524212.948721e-07
0.4227621.8514552.848678e-07
0.4245311.8505022.748215e-07
0.4263071.8495612.647333e-07
0.4280911.8486342.546028e-07
0.4298831.8477192.444299e-07
0.4316821.8468172.342145e-07
0.4334881.8459262.239563e-07
0.4353021.8450482.136552e-07
0.4371241.8441812.033109e-07
0.4389531.8433251.929234e-07
0.441.8428421.869800e-07
0.440791.8424811.847451e-07
0.4426351.8416471.795285e-07
0.4444871.8408241.742901e-07
0.4463471.8400121.690298e-07
0.4482151.839211.637475e-07
0.4500911.8384191.584431e-07
0.4519741.8376371.531164e-07
0.4538661.8368651.477675e-07
0.4557651.8361031.423962e-07
0.4576721.835351.370024e-07
0.4595881.8346071.315860e-07
0.461.8344491.304200e-07
0.4615111.8338731.281694e-07
0.4634421.8331481.252927e-07
0.4653821.8324311.224040e-07
0.4673291.8317241.195031e-07
0.4692851.8310241.165902e-07
0.4712491.8303341.136650e-07
0.4732211.8296511.107276e-07
0.4752011.8289771.077779e-07
0.477191.8283111.048158e-07
0.4791871.8276521.018414e-07
0.481.8273871.006300e-07
0.4811921.8270029.942334e-08
0.4832061.8263599.738489e-08
0.4852281.8257239.533790e-08
0.4872581.8250959.328235e-08
0.4892971.8244749.121820e-08
0.4913451.823868.914541e-08
0.4934011.8232538.706394e-08
0.4954661.8226548.497376e-08
0.4975391.8220618.287484e-08
0.4996221.8214758.076713e-08
0.51.8213698.038400e-08
0.5017121.8208957.944068e-08
0.5038121.8203227.828403e-08
0.505921.8197557.712254e-08
0.5080371.8191957.595619e-08
0.5101631.8186417.478496e-08
0.5122981.8180937.360883e-08
0.5144421.8175517.242778e-08
0.5165951.8170157.124179e-08
0.5187571.8164857.005083e-08
0.5209281.8159616.885489e-08
0.5231081.8154426.765394e-08
0.5252971.8149296.644797e-08
0.5274951.8144226.523695e-08
0.5297031.813926.402086e-08
0.5319191.8134236.279969e-08
0.5341451.8129326.157340e-08
0.536381.8124466.034198e-08
0.5386251.8119655.910541e-08
0.5408791.8114895.786367e-08
0.5431431.8110195.661672e-08
0.5454161.8105535.536456e-08
0.5476981.8100925.410716e-08
0.549991.8096365.284450e-08
0.551.8096345.283900e-08
0.5522921.8091855.305913e-08
0.5546031.8087385.328115e-08
0.5569241.8082965.350409e-08
0.5592541.8078585.372797e-08
0.5615951.8074255.395279e-08
0.5639451.8069975.417854e-08
0.5663051.8065725.440524e-08
0.5686751.8061535.463289e-08
0.5710541.8057375.486149e-08
0.5734441.8053265.509105e-08
0.5758441.8049185.532157e-08
0.5782541.8045155.555306e-08
0.5806741.8041165.578551e-08
0.5831041.8037215.601893e-08
0.5855441.8033295.625334e-08
0.5879941.8029425.648872e-08
0.5904551.8025595.672509e-08
0.5929261.8021795.696244e-08
0.5954071.8018035.720080e-08
0.5978991.801435.744014e-08
0.61.801125.764200e-08
0.6004011.8010625.776450e-08
0.6029131.8006975.853259e-08
0.6054361.8003355.930389e-08
0.607971.7999776.007841e-08
0.6105141.7996226.085618e-08
0.6130691.7992716.163721e-08
0.6156351.7989236.242150e-08
0.6182111.7985796.320908e-08
0.6207981.7982386.399995e-08
0.6233961.79796.479413e-08
0.6260051.7975656.559163e-08
0.6286241.7972336.639247e-08
0.6312551.7969056.719666e-08
0.6338971.7965796.800422e-08
0.6365491.7962576.881516e-08
0.6392131.7959386.962949e-08
0.6418881.7956217.044723e-08
0.6445741.7953087.126839e-08
0.6472721.7949977.209299e-08
0.649981.794697.292104e-08
0.651.7946877.292700e-08
0.6527011.7943857.323000e-08
0.6554321.7940837.353646e-08
0.6581751.7937837.384421e-08
0.6609291.7934877.415324e-08
0.6636951.7931937.446357e-08
0.6664721.7929027.477520e-08
0.6692611.7926137.508813e-08
0.6720621.7923277.540237e-08
0.6748751.7920447.571793e-08
0.6776991.7917637.603480e-08
0.6805351.7914857.635300e-08
0.6833831.7912097.667254e-08
0.6862431.7909357.699341e-08
0.6891141.7906647.731562e-08
0.6919981.7903957.763918e-08
0.6948941.7901297.796410e-08
0.6978021.7898657.829038e-08
0.71.7896687.853700e-08
0.7007221.7896037.847836e-08
0.7036541.7893447.824022e-08
0.7065991.7890877.800109e-08
0.7095561.7888327.776095e-08
0.7125251.7885797.751981e-08
0.7155071.7883297.727766e-08
0.7185011.788087.703450e-08
0.7215081.7878347.679032e-08
0.7245281.787597.654512e-08
0.727561.7873477.629889e-08
0.7306041.7871077.605163e-08
0.7336621.7868697.580334e-08
0.7367321.7866337.555401e-08
0.7398151.7863997.530363e-08
0.7429111.7861677.505221e-08
0.746021.7859367.479973e-08
0.7491421.7857087.454620e-08
0.7522771.7854817.429160e-08
0.7554251.7852577.403595e-08
0.7585861.7850347.377922e-08
0.7617611.7848137.352141e-08
0.7649481.7845947.326253e-08
0.768151.7843767.300257e-08
0.7713641.784167.274151e-08
0.7745921.7839467.247937e-08
0.7778341.7837347.221613e-08
0.7810891.7835237.195178e-08
0.7843571.7833147.168633e-08
0.787641.7831077.141977e-08
0.7909361.7829017.115209e-08
0.7942461.7826977.088330e-08
0.797571.7824957.061338e-08
0.81.7823487.041600e-08
0.8009071.7822947.010286e-08
0.8042591.7820946.894601e-08
0.8076251.7818976.778433e-08
0.8110041.78176.661778e-08
0.8143981.7815056.544634e-08
0.8178061.7813126.427001e-08
0.8212291.781126.308875e-08
0.8246651.780936.190255e-08
0.8281161.780746.071139e-08
0.8315821.7805535.951524e-08
0.8350621.7803665.831409e-08
0.8385561.7801815.710791e-08
0.8420651.7799985.589668e-08
0.8455891.7798165.468038e-08
0.8491281.7796355.345899e-08
0.8526811.7794555.223249e-08
0.856251.7792775.100086e-08
0.8598331.77914.976408e-08
0.8634311.7789244.852212e-08
0.8670441.7787494.727496e-08
0.8706731.7785764.602258e-08
0.8743161.7784044.476496e-08
0.8779751.7782334.350208e-08
0.8816491.7780634.223392e-08
0.8853391.7778944.096044e-08
0.8890441.7777273.968164e-08
0.8927641.777563.839749e-08
0.89651.7773953.710796e-08
0.91.7772423.590000e-08
0.9002521.7772313.591005e-08
0.9040191.7770683.606033e-08
0.9078021.7769063.621124e-08
0.9116011.7767453.636278e-08
0.9154161.7765853.651495e-08
0.9192471.7764263.666777e-08
0.9230941.7762683.682122e-08
0.9269571.7761113.697531e-08
0.9308361.7759553.713005e-08
0.9347311.77583.728543e-08
0.9386431.7756463.744147e-08
0.9425711.7754933.759816e-08
0.9465151.7753413.775550e-08
0.9504761.775193.791351e-08
0.9544541.775043.807217e-08
0.9584481.774893.823150e-08
0.9624591.7747423.839149e-08
0.9664871.7745943.855216e-08
0.9705311.7744473.871349e-08
0.9745931.7743013.887551e-08
0.9786711.7741563.903820e-08
0.9827671.7740123.920157e-08
0.9868791.7738693.936562e-08
0.9910091.7737263.953036e-08
0.9951561.7735843.969579e-08
0.9993211.7734433.986192e-08
11.773423.988900e-08
1.00351.7733033.952520e-08
1.00771.7731633.908907e-08
1.011921.7730243.865111e-08
1.016151.7728863.821132e-08
1.020411.7727493.776969e-08
1.024681.7726123.732621e-08
1.028961.7724763.688087e-08
1.033271.772343.643367e-08
1.037591.7722063.598460e-08
1.041941.7720723.553365e-08
1.04631.7719383.508081e-08
1.050681.7718053.462608e-08
1.055071.7716733.416944e-08
1.059491.7715423.371090e-08
1.063921.7714113.325043e-08
1.068371.771283.278804e-08
1.072841.7711513.232371e-08
1.077331.7710223.185744e-08
1.081841.7708933.138922e-08
1.086371.7707653.091904e-08
1.090921.7706373.044689e-08
1.095481.770512.997277e-08
1.100071.7703842.949666e-08
1.104671.7702582.901856e-08
1.109291.7701322.853846e-08
1.113931.7700072.805635e-08
1.11861.7698832.757222e-08
1.123281.7697592.708606e-08
1.127981.7696352.659788e-08
1.13271.7695122.610764e-08
1.137441.7693892.561536e-08
1.14221.7692672.512102e-08
1.146981.7691452.462461e-08
1.151781.7690232.412612e-08
1.15661.7689022.362554e-08
1.161441.7687822.312287e-08
1.16631.7686612.261810e-08
1.171181.7685412.211121e-08
1.176081.7684222.160220e-08
1.1811.7683032.109107e-08
1.185941.7681842.057779e-08
1.190911.7680652.006237e-08
1.195891.7679471.954478e-08
1.21.767851.911800e-08
1.20091.7678291.908232e-08
1.205921.7677111.888200e-08
1.210971.7675941.868085e-08
1.216031.7674771.847885e-08
1.221121.767361.827601e-08
1.226231.7672441.807232e-08
1.231371.7671281.786778e-08
1.236521.7670121.766238e-08
1.241691.7668961.745612e-08
1.246891.766781.724900e-08
1.252111.7666651.704101e-08
1.257351.766551.683215e-08
1.262611.7664351.662242e-08
1.267891.766321.641181e-08
1.27321.7662061.620032e-08
1.278531.7660911.598794e-08
1.283881.7659771.577468e-08
1.289251.7658631.556052e-08
1.294641.7657491.534547e-08
1.300061.7656361.512951e-08
1.30551.7655221.491265e-08
1.310971.7654091.469489e-08
1.316451.7652951.447621e-08
1.321961.7651821.425662e-08
1.327491.7650691.403611e-08
1.333051.7649561.381468e-08
1.338631.7648431.359232e-08
1.344231.764731.336903e-08
1.349851.7646171.314480e-08
1.35551.7645051.291964e-08
1.361181.7643921.269353e-08
1.366871.7642791.246648e-08
1.372591.7641671.223848e-08
1.378341.7640541.200952e-08
1.38411.7639421.177961e-08
1.38991.7638291.154873e-08
1.395711.7637161.131689e-08
1.41.7636341.114600e-08
1.401551.7636041.205336e-08
1.407421.7634911.547905e-08
1.413311.7633781.891907e-08
1.419221.7632662.237349e-08
1.425161.7631532.584237e-08
1.431131.763042.932576e-08
1.437111.7629273.282373e-08
1.443131.7628143.633634e-08
1.449171.7627013.986365e-08
1.455231.7625884.340572e-08
1.461321.7624754.696261e-08
1.467441.7623625.053439e-08
1.473581.7622485.412111e-08
1.479751.7621355.772285e-08
1.485941.7620216.133965e-08
1.492161.7619086.497159e-08
1.49841.7617946.861874e-08
1.504671.7616797.228114e-08
1.510971.7615657.595887e-08
1.517291.7614517.965199e-08
1.523641.7613368.336056e-08
1.530021.7612218.708466e-08
1.536421.7611069.082434e-08
1.542851.7609919.457967e-08
1.549311.7608769.835071e-08
1.555791.760761.021375e-07
1.56231.7606441.059402e-07
1.568841.7605281.097588e-07
1.57541.7604121.135934e-07
1.5821.7602951.174440e-07
1.588621.7601781.213107e-07
1.595261.7600611.251936e-07
1.61.7599781.279600e-07
1.601941.7599441.302358e-07
1.608641.7598261.381024e-07
1.615381.7597081.460018e-07
1.622141.7595891.539344e-07
1.628921.7594711.619001e-07
1.635741.7593521.698991e-07
1.642591.7592321.779317e-07
1.649461.7591131.859978e-07
1.656361.7589931.940977e-07
1.663291.7588722.022315e-07
1.670251.7587522.103993e-07
1.677241.758632.186013e-07
1.684261.7585092.268377e-07
1.691311.7583872.351085e-07
1.698391.7582652.434139e-07
1.70551.7581422.517541e-07
1.712631.7580192.601291e-07
1.71981.7578952.685393e-07
1.7271.7577712.769846e-07
1.734221.7576472.854652e-07
1.741481.7575222.939814e-07
1.748771.7573963.025332e-07
1.756091.757273.111208e-07
1.763441.7571443.197443e-07
1.770821.7570173.284039e-07
1.778231.756893.370997e-07
1.785671.7567623.458319e-07
1.793141.7566333.546007e-07
1.81.7565153.626500e-07
1.800641.7565043.632554e-07
1.808181.7563753.703344e-07
1.815751.7562453.774431e-07
1.823351.7561143.845815e-07
1.830981.7559833.917498e-07
1.838641.7558513.989481e-07
1.846331.7557194.061765e-07
1.854061.7555864.134352e-07
1.861821.7554524.207242e-07
1.869611.7553184.280438e-07
1.877431.7551834.353940e-07
1.885291.7550484.427749e-07
1.893181.7549124.501867e-07
1.90111.7547754.576296e-07
1.909061.7546374.651035e-07
1.917051.7544994.726088e-07
1.925071.7543614.801455e-07
1.933121.7542214.877137e-07
1.941211.7540814.953136e-07
1.949341.753945.029453e-07
1.95751.7537985.106089e-07
1.965691.7536565.183046e-07
1.973911.7535135.260325e-07
1.982171.7533695.337927e-07
1.990471.7532245.415854e-07
1.99881.7530795.494107e-07
21.7530585.505400e-07
2.007161.7529335.722911e-07
2.015561.7527855.977988e-07
2.0241.7526386.234133e-07
2.032471.7524896.491350e-07
2.040971.7523396.749643e-07
2.049511.7521897.009018e-07
2.058091.7520387.269477e-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
—