Optical constants

Refractive index of J-SF6 (HIKARI)

J-SF6: 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
1.80517
Extinction coefficient k
5.64509e-08
Permittivity ε1
3.25865
Permittivity ε2
2.03807e-07
Absorption coefficient α
0.0120725 cm⁻¹
Penetration depth δ = λ/(2πk)
1.65665e+09 nm
Abbe number Vd
25.448
Chromatic dispersion dn/dλ
-0.158244 µm⁻¹
Group index ng
1.89816
Group velocity dispersion
327.346 fs²/mm
Dispersion parameter D
-1785.84 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

# J-SF6 (HIKARI): J-SF6
hikari_j_sf6 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-SF6", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_sf6.range_nm)  # (388.865, 2058.09) nm
eps = hikari_j_sf6.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=3.11993645−0.0126679163⁢λ2.0+0.0421698355⁢λ−2.0+0.00304768926⁢λ−4.0−0.000420720196⁢λ−6.0+0.000106770582⁢λ−8.0−1.09382035×10-5⁢λ−10.0+5.57077794×10-7⁢λ−12.0

Valid from 0.388865 to 2.05809 µm.

Coefficients as stored
CiValue
C13.11993645
C2-0.0126679163
C32.0
C40.0421698355
C5-2.0
C60.00304768926
C7-4.0
C8-0.000420720196
C9-6.0
C100.000106770582
C11-8.0
C12-1.09382035e-05
C13-10.0
C145.57077794e-07
C15-12.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: -5.4567e-06 9.6564e-09 -1.396e-12 1.0511e-06 1.5502e-09 0.2883
nd
1.805180
Vd
25.448348
density
value: 3340
thermal expansion
value: 8.6e-06, temperature range: 243 343
dPgF
0.014
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = -1.33e-06 K⁻¹ at 633 nm, dn/dT = -2.89e-06 K⁻¹ at 1310 nm, dn/dT = -2.99e-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
J-SF6 (HIKARI), J-SF6: n and k versus wavelength
λ (µm)nk
0.3888651.8764211.173370e-06
0.391.8755141.062900e-06
0.3904921.8751251.041668e-06
0.3921271.873859.712009e-07
0.3937681.8725959.004384e-07
0.3954151.871368.293798e-07
0.397071.8701457.580239e-07
0.3987321.8689496.863693e-07
0.41.8680516.316900e-07
0.4004011.867776.250569e-07
0.4020761.866615.973132e-07
0.4037591.8654685.694534e-07
0.4054491.8643425.414771e-07
0.4071451.8632335.133836e-07
0.4088491.8621414.851726e-07
0.410561.8610654.568435e-07
0.4122781.8600044.283958e-07
0.4140041.8589593.998291e-07
0.4157361.8579283.711429e-07
0.4174761.8569123.423365e-07
0.4192231.8559113.134097e-07
0.421.8554723.005500e-07
0.4209781.8549232.949980e-07
0.4227391.853952.849938e-07
0.4245091.852992.749478e-07
0.4262851.8520432.648597e-07
0.4280691.8511082.547294e-07
0.4298611.8501872.445568e-07
0.431661.8492782.343415e-07
0.4334661.8483812.240835e-07
0.435281.8474962.137826e-07
0.4371021.8466232.034385e-07
0.4389311.8457611.930512e-07
0.441.8452651.869800e-07
0.4407681.8449111.848088e-07
0.4426121.8440721.795924e-07
0.4444651.8432431.743541e-07
0.4463251.8424251.690938e-07
0.4481931.8416181.638116e-07
0.4500681.8408211.585073e-07
0.4519521.8400341.531807e-07
0.4538431.8392561.478319e-07
0.4557421.8384891.424607e-07
0.457651.8377311.370670e-07
0.4595651.8369831.316507e-07
0.461.8368141.304200e-07
0.4614881.8362431.282035e-07
0.4634191.8355131.253269e-07
0.4653591.8347921.224382e-07
0.4673061.834081.195374e-07
0.4692621.8333761.166244e-07
0.4712261.832681.136993e-07
0.4731981.8319931.107620e-07
0.4751781.8313151.078123e-07
0.4771671.8306441.048503e-07
0.4791641.8299811.018759e-07
0.481.8297071.006300e-07
0.4811691.8293269.944683e-08
0.4831821.8286799.740840e-08
0.4852051.8280399.536145e-08
0.4872351.8274079.330593e-08
0.4892741.8267829.124181e-08
0.4913221.8261648.916904e-08
0.4933781.8255538.708761e-08
0.4954431.824958.499746e-08
0.4975161.8243538.289857e-08
0.4995981.8237638.079089e-08
0.51.823658.038400e-08
0.5016891.823187.945362e-08
0.5037881.8226037.829699e-08
0.5058971.8220337.713552e-08
0.5080141.8214697.596919e-08
0.510141.8209117.479797e-08
0.5122751.820367.362186e-08
0.5144191.8198147.244082e-08
0.5165711.8192757.125484e-08
0.5187331.8187427.006390e-08
0.5209041.8182146.886797e-08
0.5230841.8176926.766704e-08
0.5252731.8171766.646108e-08
0.5274711.8166656.525008e-08
0.5296791.816166.403400e-08
0.5318951.8156616.281284e-08
0.5341211.8151666.158657e-08
0.5363571.8146776.035517e-08
0.5386011.8141945.911861e-08
0.5408551.8137155.787688e-08
0.5431191.8132415.662995e-08
0.5453921.8127735.537780e-08
0.5476741.8123095.412041e-08
0.5499661.811855.285777e-08
0.551.8118435.283900e-08
0.5522681.8113965.305682e-08
0.5545791.8109465.327883e-08
0.55691.8105025.350177e-08
0.559231.8100615.372565e-08
0.561571.8096265.395046e-08
0.5639211.8091955.417622e-08
0.5662811.8087685.440291e-08
0.568651.8083455.463056e-08
0.571031.8079275.485916e-08
0.573421.8075135.508872e-08
0.575821.8071045.531923e-08
0.5782291.8066985.555072e-08
0.5806491.8062965.578317e-08
0.5830791.8058995.601659e-08
0.5855191.8055055.625099e-08
0.587971.8051165.648637e-08
0.590431.804735.672274e-08
0.5929011.8043485.696009e-08
0.5953821.8039695.719844e-08
0.5978741.8035955.743779e-08
0.61.8032795.764200e-08
0.6003761.8032245.775700e-08
0.6028891.8028575.852508e-08
0.6054121.8024935.929637e-08
0.6079451.8021336.007089e-08
0.610491.8017766.084866e-08
0.6130441.8014236.162968e-08
0.615611.8010736.241396e-08
0.6181861.8007276.320153e-08
0.6207731.8003836.399240e-08
0.6233711.8000436.478657e-08
0.625981.7997076.558407e-08
0.62861.7993736.638491e-08
0.631231.7990436.718910e-08
0.6338721.7987156.799665e-08
0.6365251.7983916.880758e-08
0.6391881.798076.962191e-08
0.6418631.7977527.043964e-08
0.644551.7974377.126080e-08
0.6472471.7971247.208539e-08
0.6499561.7968157.291344e-08
0.651.796817.292700e-08
0.6526761.7965087.322721e-08
0.6554071.7962047.353367e-08
0.658151.7959037.384142e-08
0.6609041.7956057.415045e-08
0.663671.795317.446078e-08
0.6664471.7950177.477240e-08
0.6692361.7947277.508533e-08
0.6720371.7944397.539957e-08
0.674851.7941547.571512e-08
0.6776741.7938717.603200e-08
0.680511.7935927.635020e-08
0.6833581.7933147.666973e-08
0.6862171.7930397.699060e-08
0.6890891.7927667.731282e-08
0.6919731.7924967.763638e-08
0.6948691.7922297.796129e-08
0.6977771.7919637.828757e-08
0.71.7917627.853700e-08
0.7006971.79177.848039e-08
0.7036291.7914397.824226e-08
0.7065741.791187.800312e-08
0.7095311.7909247.776299e-08
0.71251.790677.752185e-08
0.7154821.7904187.727970e-08
0.7184761.7901687.703654e-08
0.7214831.789927.679236e-08
0.7245021.7896757.654716e-08
0.7275341.7894317.630093e-08
0.7305791.789197.605367e-08
0.7336371.7889517.580538e-08
0.7367071.7887137.555604e-08
0.739791.7884787.530567e-08
0.7428861.7882447.505425e-08
0.7459951.7880137.480177e-08
0.7491171.7877837.454824e-08
0.7522521.7875557.429364e-08
0.75541.7873297.403799e-08
0.7585611.7871057.378126e-08
0.7617361.7868837.352345e-08
0.7649231.7866637.326457e-08
0.7681251.7864447.300461e-08
0.7713391.7862277.274355e-08
0.7745671.7860127.248141e-08
0.7778091.7857997.221817e-08
0.7810641.7855877.195382e-08
0.7843321.7853777.168837e-08
0.7876151.7851687.142181e-08
0.7909111.7849627.115413e-08
0.7942211.7847567.088533e-08
0.7975441.7845537.061541e-08
0.81.7844047.041600e-08
0.8008821.7843517.011152e-08
0.8042341.784156.895467e-08
0.8075991.7839526.779298e-08
0.8109791.7837546.662643e-08
0.8143731.7835586.545499e-08
0.8177811.7833646.427865e-08
0.8212041.7831716.309739e-08
0.824641.7829796.191119e-08
0.8280911.7827896.072002e-08
0.8315571.7826015.952387e-08
0.8350371.7824135.832271e-08
0.8385311.7822285.711653e-08
0.8420411.7820435.590530e-08
0.8455641.781865.468899e-08
0.8491031.7816785.346760e-08
0.8526561.7814975.224110e-08
0.8562251.7813185.100946e-08
0.8598081.781144.977267e-08
0.8634061.7809644.853071e-08
0.867021.7807884.728354e-08
0.8706481.7806144.603116e-08
0.8742921.7804414.477354e-08
0.877951.7802694.351065e-08
0.8816251.7800984.224248e-08
0.8853141.7799294.096900e-08
0.8890191.779763.969019e-08
0.892741.7795933.840603e-08
0.8964761.7794273.711649e-08
0.91.7792723.590000e-08
0.9002271.7792623.590907e-08
0.9039951.7790983.605935e-08
0.9077781.7789353.621026e-08
0.9115771.7787743.636180e-08
0.9153921.7786133.651397e-08
0.9192231.7784533.666679e-08
0.9230691.7782953.682024e-08
0.9269321.7781373.697433e-08
0.9308121.777983.712907e-08
0.9347071.7778253.728446e-08
0.9386191.777673.744049e-08
0.9425471.7775163.759718e-08
0.9464911.7773633.775453e-08
0.9504521.7772123.791253e-08
0.954431.7770613.807120e-08
0.9584241.7769113.823053e-08
0.9624351.7767613.839052e-08
0.9664631.7766133.855119e-08
0.9705071.7764663.871253e-08
0.9745691.7763193.887454e-08
0.9786471.7761733.903723e-08
0.9827431.7760283.920061e-08
0.9868551.7758843.936466e-08
0.9909851.7757413.952940e-08
0.9951321.7755983.969484e-08
0.9992971.7754573.986096e-08
11.7754333.988900e-08
1.003481.7753163.952768e-08
1.007681.7751753.909155e-08
1.01191.7750363.865358e-08
1.016131.7748973.821379e-08
1.020381.7747593.777215e-08
1.024651.7746223.732867e-08
1.028941.7744853.688333e-08
1.033251.7743493.643612e-08
1.037571.7742143.598705e-08
1.041911.7740793.553609e-08
1.046271.7739453.508325e-08
1.050651.7738123.462851e-08
1.055051.7736793.417187e-08
1.059461.7735473.371332e-08
1.06391.7734163.325285e-08
1.068351.7732853.279045e-08
1.072821.7731543.232612e-08
1.077311.7730253.185985e-08
1.081821.7728953.139162e-08
1.086351.7727673.092143e-08
1.090891.7726393.044928e-08
1.095461.7725112.997515e-08
1.100041.7723842.949903e-08
1.104651.7722572.902093e-08
1.109271.7721312.854082e-08
1.113911.7720062.805870e-08
1.118571.7718812.757457e-08
1.123251.7717562.708841e-08
1.127961.7716322.660021e-08
1.132681.7715082.610998e-08
1.137421.7713852.561769e-08
1.142181.7712622.512334e-08
1.146961.771142.462692e-08
1.151761.7710182.412842e-08
1.156581.7708962.362784e-08
1.161421.7707752.312516e-08
1.166281.7706542.262038e-08
1.171161.7705342.211349e-08
1.176061.7704142.160447e-08
1.180981.7702942.109333e-08
1.185921.7701752.058004e-08
1.190891.7700562.006461e-08
1.195871.7699371.954702e-08
1.21.7698391.911800e-08
1.200871.7698191.908318e-08
1.20591.7697011.888286e-08
1.210951.7695831.868170e-08
1.216011.7694651.847970e-08
1.22111.7693481.827686e-08
1.226211.7692311.807316e-08
1.231341.7691141.786862e-08
1.23651.7689981.766321e-08
1.241671.7688821.745695e-08
1.246871.7687661.724983e-08
1.252091.768651.704184e-08
1.257331.7685341.683297e-08
1.262591.7684191.662324e-08
1.267871.7683041.641262e-08
1.273181.7681891.620113e-08
1.278511.7680741.598875e-08
1.283861.767961.577548e-08
1.289231.7678451.556132e-08
1.294621.7677311.534626e-08
1.300041.7676171.513030e-08
1.305481.7675031.491344e-08
1.310951.7673891.469567e-08
1.316431.7672751.447699e-08
1.321941.7671621.425740e-08
1.327471.7670481.403688e-08
1.333031.7669351.381544e-08
1.338611.7668211.359308e-08
1.344211.7667081.336978e-08
1.349841.7665951.314555e-08
1.355481.7664811.292039e-08
1.361161.7663681.269428e-08
1.366851.7662551.246722e-08
1.372571.7661421.223921e-08
1.378321.7660291.201025e-08
1.384091.7659161.178034e-08
1.389881.7658031.154945e-08
1.395691.765691.131761e-08
1.41.7656071.114600e-08
1.401541.7655771.204292e-08
1.40741.7654641.546868e-08
1.413291.7653511.890878e-08
1.419211.7652382.236327e-08
1.425141.7651252.583222e-08
1.431111.7650112.931568e-08
1.43711.7648983.281373e-08
1.443111.7647853.632641e-08
1.449151.7646713.985380e-08
1.455221.7645584.339594e-08
1.461311.7644444.695291e-08
1.467421.764335.052477e-08
1.473561.7642175.411157e-08
1.479731.7641035.771339e-08
1.485921.7639896.133027e-08
1.492141.7638746.496230e-08
1.498381.763766.860952e-08
1.504661.7636457.227201e-08
1.510951.7635317.594982e-08
1.517281.7634167.964302e-08
1.523631.7633018.335169e-08
1.531.7631868.707587e-08
1.53641.763079.081563e-08
1.542831.7629549.457105e-08
1.549291.7628399.834219e-08
1.555771.7627221.021291e-07
1.562291.7626061.059319e-07
1.568821.762491.097505e-07
1.575391.7623731.135852e-07
1.581981.7622561.174359e-07
1.58861.7621381.213027e-07
1.595251.7620211.251857e-07
1.61.7619371.279600e-07
1.601931.7619031.302202e-07
1.608631.7617851.380869e-07
1.615361.7616661.459866e-07
1.622121.7615471.539193e-07
1.628911.7614281.618853e-07
1.635731.7613091.698845e-07
1.642571.7611891.779172e-07
1.649451.7610691.859836e-07
1.656351.7609481.940837e-07
1.663281.7608282.022177e-07
1.670241.7607062.103858e-07
1.677231.7605852.185880e-07
1.684251.7604632.268245e-07
1.69131.760342.350956e-07
1.698381.7602182.434012e-07
1.705491.7600942.517416e-07
1.712621.7599712.601169e-07
1.719791.7598472.685272e-07
1.726991.7597222.769728e-07
1.734211.7595972.854537e-07
1.741471.7594722.939701e-07
1.748761.7593463.025221e-07
1.756081.7592193.111099e-07
1.763431.7590933.197337e-07
1.770811.7589653.283935e-07
1.778221.7588373.370896e-07
1.785661.7587093.458221e-07
1.793131.758583.545911e-07
1.81.7584613.626500e-07
1.800641.758453.632479e-07
1.808171.758323.703271e-07
1.815741.758193.774360e-07
1.823341.7580593.845746e-07
1.830971.7579273.917431e-07
1.838631.7577953.989416e-07
1.846331.7576624.061703e-07
1.854051.7575284.134292e-07
1.861811.7573944.207184e-07
1.86961.757264.280382e-07
1.877431.7571244.353886e-07
1.885281.7569884.427697e-07
1.893171.7568524.501818e-07
1.90111.7567144.576249e-07
1.909051.7565764.650991e-07
1.917041.7564384.726046e-07
1.925061.7562984.801415e-07
1.933121.7561584.877099e-07
1.941211.7560184.953100e-07
1.949331.7558765.029420e-07
1.957491.7557345.106058e-07
1.965681.7555915.183018e-07
1.973911.7554475.260299e-07
1.982171.7553035.337904e-07
1.990471.7551585.415833e-07
1.99881.7550125.494089e-07
21.754995.505400e-07
2.007161.7548655.722860e-07
2.015561.7547175.977946e-07
2.0241.7545696.234099e-07
2.032471.7544196.491325e-07
2.040971.7542696.749626e-07
2.049511.7541187.009009e-07
2.058091.7539677.269477e-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
—