Optical constants

Refractive index of (C₂H₆OSi)_n (Polydimethylsiloxane, PDMS)

Querry 1987: SF-96 fluid; n,k 2.5–56 µm

Data: tabulated nk
Range: 2.5–55.56 µm
Points: 764
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.2438
Extinction coefficient k: 0.131115

Permittivity ε₁: 1.52984
Permittivity ε₂: 0.326161

Absorption coefficient α: 1396.3 cm⁻¹
Penetration depth δ = λ/(2πk): 14323.5 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.402299 µm⁻¹

Group index n_g: 5.99093
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 0.105071 eV

ε = (n + ik)², α = 4πk/λ, n_g = 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

# (C2H6OSi)n (Polydimethylsiloxane, PDMS): Querry 1987: SF-96 fluid; n,k 2.5–56 µm
mat = ls.fetch_refractiveindex("organic", "polydimethylsiloxane", "Querry-IR", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mat.range_nm)  # (2500, 55555.6) nm
eps = mat.eps([11800])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_2c5d163218ed/lightsmith"
mat = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(mat.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (polydimethylsiloxane/querry-1987-ir).

# ... load mat as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=mat)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=2500, stop_nm=55560, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

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.

Comments and conditions

SF-96 polydimethylsiloxane fluid

References

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet. Contractor Report CRDEC-CR-88009 (1987)

Cite

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet. Contractor Report CRDEC-CR-88009 (1987); Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

765 rows as published

CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata

(C2H6OSi)n (Polydimethylsiloxane, PDMS), Querry 1987: SF-96 fluid; n,k 2.5–56 µm: n and k versus wavelength
λ (µm)	n	k
2.5	1.386	0.0
2.5031	1.386	0.0
2.5063	1.386	0.0
2.5094	1.386	0.0
2.5126	1.386	0.0
2.5157	1.386	0.0
2.5189	1.386	0.0
2.5221	1.386	0.0
2.5253	1.386	0.0
2.5284	1.386	0.0
2.5316	1.386	0.0
2.5349	1.385	0.0
2.5381	1.385	0.0
2.5413	1.385	0.0
2.5445	1.386	0.0
2.5478	1.386	0.0
2.551	1.386	0.0
2.5543	1.386	0.0
2.5575	1.385	0.0
2.5608	1.385	0.0
2.5641	1.385	0.0
2.5674	1.386	0.0
2.5707	1.385	0.0
2.574	1.385	0.0
2.5773	1.385	0.0
2.5806	1.385	0.0
2.584	1.385	0.0
2.5873	1.385	0.0
2.5907	1.385	0.0
2.594	1.385	0.0
2.5974	1.385	0.0
2.6008	1.385	0.0
2.6042	1.385	0.0
2.6076	1.384	0.0
2.611	1.384	0.0
2.6144	1.384	0.0
2.6178	1.384	0.0
2.6212	1.385	0.0
2.6247	1.384	0.0
2.6281	1.384	0.0
2.6316	1.384	0.0
2.635	1.384	0.0
2.6385	1.384	0.0
2.642	1.384	0.0
2.6455	1.384	0.0
2.649	1.384	0.0
2.6525	1.384	0.0
2.656	1.384	0.0
2.6596	1.384	0.0
2.6631	1.383	0.0
2.6667	1.383	0.001
2.6702	1.384	0.0
2.6738	1.383	0.001
2.6774	1.384	0.001
2.681	1.384	0.001
2.6846	1.384	0.0
2.6882	1.384	0.001
2.6918	1.384	0.001
2.6954	1.384	0.001
2.6991	1.384	0.001
2.7027	1.384	0.001
2.7064	1.384	0.001
2.71	1.384	0.001
2.7137	1.384	0.001
2.7174	1.384	0.001
2.7211	1.385	0.001
2.7248	1.384	0.0
2.7285	1.384	0.001
2.7322	1.384	0.001
2.736	1.384	0.001
2.7397	1.384	0.001
2.7435	1.384	0.001
2.7473	1.385	0.0
2.751	1.384	0.001
2.7548	1.384	0.001
2.7586	1.384	0.001
2.7624	1.384	0.001
2.7663	1.385	0.001
2.7701	1.385	0.0
2.7739	1.385	0.0
2.7778	1.384	0.0
2.7816	1.384	0.0
2.7855	1.384	0.0
2.7894	1.384	0.0
2.7933	1.384	0.0
2.7972	1.384	0.0
2.8011	1.383	0.0
2.805	1.384	0.0
2.809	1.384	0.0
2.8129	1.384	0.0
2.8169	1.383	0.0
2.8209	1.384	0.0
2.8249	1.384	0.0
2.8289	1.383	0.0
2.8329	1.383	0.0
2.8369	1.383	0.0
2.8409	1.382	0.0
2.845	1.383	0.0
2.849	1.382	0.0
2.8531	1.383	0.0
2.8571	1.383	0.0
2.8612	1.383	0.0
2.8653	1.383	0.0
2.8694	1.383	0.0
2.8736	1.383	0.0
2.8777	1.382	0.0
2.8818	1.382	0.0
2.886	1.383	0.0
2.8902	1.383	0.0
2.8944	1.382	0.0
2.8986	1.382	0.0
2.9028	1.382	0.0
2.907	1.382	0.0
2.9112	1.382	0.0
2.9155	1.382	0.0
2.9197	1.382	0.0
2.924	1.382	0.0
2.9283	1.382	0.0
2.9326	1.382	0.0
2.9369	1.382	0.0
2.9412	1.382	0.0
2.9455	1.382	0.0
2.9499	1.382	0.0
2.9542	1.382	0.0
2.9586	1.382	0.0
2.963	1.381	0.0
2.9674	1.381	0.0
2.9718	1.381	0.0
2.9762	1.381	0.0
2.9806	1.381	0.0
2.9851	1.381	0.0
2.9895	1.381	0.0
2.994	1.381	0.0
2.9985	1.381	0.0
3.003	1.381	0.0
3.0075	1.381	0.0
3.012	1.381	0.0
3.0166	1.38	0.0
3.0211	1.38	0.0
3.0257	1.38	0.0
3.0303	1.38	0.0
3.0349	1.38	0.0
3.0395	1.38	0.0
3.0441	1.38	0.0
3.0488	1.38	0.0
3.0534	1.38	0.0
3.0581	1.379	0.0
3.0628	1.38	0.0
3.0675	1.379	0.0
3.0722	1.379	0.0
3.0769	1.379	0.0
3.0817	1.379	0.0
3.0864	1.379	0.0
3.0912	1.379	0.0
3.096	1.379	0.0
3.1008	1.378	0.0
3.1056	1.378	0.0
3.1104	1.378	0.0
3.1153	1.378	0.0
3.1201	1.378	0.0
3.125	1.378	0.0
3.1299	1.378	0.0
3.1348	1.378	0.0
3.1397	1.378	0.0
3.1447	1.378	0.0
3.1496	1.378	0.0
3.1546	1.378	0.0
3.1596	1.378	0.0
3.1646	1.377	0.0
3.1696	1.377	0.0
3.1746	1.377	0.0
3.1797	1.377	0.0
3.1847	1.376	0.0
3.1898	1.377	0.001
3.1949	1.376	0.0
3.2	1.376	0.001
3.2051	1.376	0.001
3.2103	1.377	0.001
3.2154	1.376	0.001
3.2206	1.376	0.001
3.2258	1.376	0.001
3.231	1.376	0.001
3.2362	1.376	0.001
3.2415	1.375	0.0
3.2468	1.375	0.001
3.252	1.375	0.0
3.2573	1.375	0.0
3.2626	1.374	0.001
3.268	1.374	0.001
3.2733	1.374	0.001
3.2787	1.373	0.001
3.2841	1.373	0.001
3.2895	1.373	0.001
3.2949	1.372	0.001
3.3003	1.371	0.001
3.3058	1.371	0.001
3.3113	1.37	0.001
3.3167	1.369	0.002
3.3223	1.368	0.0
3.3278	1.367	0.002
3.3333	1.365	0.003
3.3389	1.363	0.004
3.3445	1.36	0.005
3.3501	1.354	0.008
3.3557	1.35	0.015
3.3613	1.348	0.028
3.367	1.354	0.043
3.3727	1.372	0.053
3.3784	1.394	0.05
3.3841	1.406	0.035
3.3898	1.407	0.019
3.3956	1.402	0.011
3.4014	1.398	0.007
3.4072	1.394	0.005
3.413	1.391	0.004
3.4188	1.389	0.004
3.4247	1.387	0.004
3.4305	1.385	0.005
3.4364	1.386	0.006
3.4423	1.386	0.007
3.4483	1.388	0.006
3.4542	1.388	0.004
3.4602	1.388	0.004
3.4662	1.388	0.003
3.4722	1.386	0.002
3.4783	1.386	0.002
3.4843	1.385	0.001
3.4904	1.385	0.0
3.4965	1.384	0.0
3.5026	1.384	0.001
3.5088	1.383	0.001
3.5149	1.383	0.001
3.5211	1.383	0.001
3.5273	1.383	0.001
3.5336	1.383	0.001
3.5398	1.382	0.0
3.5461	1.382	0.001
3.5524	1.381	0.001
3.5587	1.382	0.001
3.5651	1.382	0.0
3.5714	1.381	0.001
3.5778	1.382	0.001
3.5842	1.382	0.001
3.5907	1.382	0.0
3.5971	1.381	0.0
3.6036	1.381	0.0
3.6101	1.381	0.0
3.6166	1.38	0.0
3.6232	1.38	0.0
3.6298	1.38	0.0
3.6364	1.38	0.0
3.643	1.38	0.0
3.6496	1.379	0.0
3.6563	1.379	0.0
3.663	1.379	0.0
3.6697	1.379	0.0
3.6765	1.379	0.0
3.6832	1.379	0.0
3.69	1.379	0.0
3.6969	1.378	0.0
3.7037	1.378	0.0
3.7106	1.378	0.0
3.7175	1.378	0.0
3.7244	1.378	0.0
3.7313	1.378	0.0
3.7383	1.378	0.0
3.7453	1.378	0.0
3.7523	1.378	0.0
3.7594	1.378	0.0
3.7665	1.377	0.0
3.7736	1.377	0.0
3.7807	1.377	0.0
3.7879	1.377	0.0
3.7951	1.377	0.0
3.8023	1.376	0.0
3.8095	1.376	0.0
3.8168	1.376	0.0
3.8241	1.376	0.0
3.8314	1.376	0.0
3.8388	1.376	0.0
3.8462	1.376	0.0
3.8536	1.376	0.0
3.861	1.375	0.0
3.8685	1.375	0.0
3.876	1.375	0.0
3.8835	1.375	0.0
3.8911	1.375	0.0
3.8986	1.375	0.0
3.9063	1.375	0.0
3.9139	1.375	0.0
3.9216	1.375	0.0
3.9293	1.375	0.0
3.937	1.375	0.0
3.9448	1.375	0.0
3.9526	1.375	0.0
3.9604	1.375	0.0
3.9683	1.374	0.0
3.9761	1.374	0.0
3.9841	1.374	0.0
3.992	1.374	0.0
4.0	1.374	0.0
4.008	1.374	0.0
4.0161	1.374	0.0
4.0241	1.374	0.0
4.0323	1.373	0.0
4.0404	1.373	0.0
4.0486	1.373	0.0
4.0568	1.373	0.0
4.065	1.373	0.0
4.0733	1.373	0.0
4.0816	1.372	0.0
4.09	1.372	0.0
4.0984	1.372	0.0
4.1068	1.372	0.0
4.1152	1.372	0.0
4.1237	1.372	0.0
4.1322	1.372	0.0
4.1408	1.372	0.0
4.1494	1.372	0.0
4.158	1.371	0.0
4.1667	1.371	0.0
4.1754	1.371	0.0
4.1841	1.37	0.0
4.1929	1.37	0.0
4.2017	1.37	0.0
4.2105	1.37	0.0
4.2194	1.37	0.0
4.2283	1.37	0.0
4.2373	1.37	0.0
4.2463	1.369	0.0
4.2553	1.369	0.0
4.2644	1.369	0.0
4.2735	1.368	0.0
4.2827	1.368	0.0
4.2918	1.368	0.0
4.3011	1.368	0.0
4.3103	1.368	0.0
4.3197	1.368	0.0
4.329	1.368	0.0
4.3384	1.368	0.0
4.3478	1.367	0.0
4.3573	1.367	0.0
4.3668	1.367	0.0
4.3856	1.367	0.0
4.3764	1.367	0.0
4.3956	1.367	0.0
4.4053	1.367	0.0
4.415	1.367	0.0
4.4248	1.366	0.0
4.4446	1.366	0.001
4.4444	1.367	0.0
4.4543	1.366	0.001
4.4643	1.366	0.001
4.4743	1.366	0.001
4.4843	1.366	0.001
4.4944	1.366	0.001
4.5045	1.365	0.001
4.5147	1.365	0.001
4.5249	1.365	0.001
4.5351	1.365	0.001
4.5455	1.365	0.001
4.5558	1.365	0.001
4.5662	1.365	0.001
4.5767	1.364	0.001
4.5872	1.364	0.001
4.5977	1.364	0.001
4.6083	1.364	0.001
4.6189	1.364	0.001
4.6296	1.364	0.001
4.6404	1.364	0.001
4.6512	1.364	0.001
4.662	1.363	0.001
4.6729	1.363	0.001
4.6838	1.363	0.001
4.6948	1.363	0.001
4.7059	1.363	0.001
4.717	1.363	0.001
4.7281	1.362	0.002
4.7393	1.362	0.002
4.7506	1.362	0.002
4.7619	1.362	0.001
4.7733	1.362	0.001
4.7847	1.361	0.002
4.7962	1.361	0.002
4.8077	1.361	0.002
4.8193	1.36	0.002
4.8309	1.36	0.002
4.8426	1.36	0.002
4.8544	1.36	0.002
4.8662	1.36	0.002
4.878	1.36	0.002
4.89	1.36	0.002
4.902	1.36	0.002
4.914	1.359	0.002
4.9261	1.359	0.002
4.9383	1.359	0.002
4.9505	1.358	0.002
4.9628	1.358	0.003
4.9751	1.358	0.003
4.9875	1.358	0.004
5.0	1.358	0.004
5.0125	1.358	0.004
5.0251	1.358	0.004
5.0378	1.358	0.004
5.0505	1.358	0.004
5.0633	1.358	0.004
5.0761	1.358	0.004
5.0891	1.357	0.004
5.102	1.357	0.004
5.1151	1.357	0.004
5.1282	1.357	0.004
5.1414	1.357	0.004
5.1546	1.358	0.004
5.168	1.357	0.004
5.1813	1.357	0.004
5.1948	1.357	0.003
5.2083	1.357	0.003
5.2219	1.356	0.003
5.2356	1.356	0.003
5.2493	1.356	0.003
5.2632	1.355	0.003
5.277	1.355	0.003
5.291	1.354	0.003
5.305	1.354	0.003
5.3191	1.354	0.003
5.3333	1.354	0.003
5.3476	1.354	0.003
5.3619	1.354	0.003
5.3763	1.354	0.002
5.4054	1.352	0.002
5.4201	1.352	0.002
5.4201	1.352	0.002
5.4348	1.351	0.002
5.4496	1.351	0.003
5.4645	1.35	0.003
5.4795	1.35	0.003
5.4945	1.349	0.003
5.5096	1.349	0.003
5.5249	1.349	0.004
5.5402	1.349	0.003
5.5556	1.349	0.004
5.571	1.348	0.004
5.5866	1.348	0.004
5.6022	1.346	0.004
5.618	1.348	0.004
5.6338	1.347	0.004
5.6497	1.347	0.004
5.6657	1.347	0.004
5.6818	1.346	0.004
5.698	1.346	0.004
5.7143	1.345	0.004
5.7307	1.345	0.004
5.7471	1.344	0.005
5.7637	1.344	0.005
5.7803	1.344	0.005
5.7971	1.343	0.005
5.814	1.343	0.005
5.8309	1.343	0.005
5.848	1.342	0.005
5.8651	1.342	0.005
5.882	1.342	0.005
5.8997	1.341	0.005
5.9172	1.341	0.006
5.9347	1.34	0.005
5.9524	1.34	0.005
5.9701	1.339	0.005
5.988	1.339	0.006
6.006	1.338	0.006
6.0241	1.338	0.006
6.0423	1.337	0.006
6.0606	1.337	0.006
6.079	1.336	0.006
6.0976	1.336	0.006
6.1162	1.336	0.006
6.135	1.335	0.006
6.1538	1.334	0.006
6.1728	1.334	0.007
6.192	1.333	0.007
6.2112	1.333	0.007
6.2305	1.332	0.007
6.25	1.332	0.007
6.2696	1.331	0.007
6.2893	1.331	0.007
6.3091	1.33	0.007
6.3291	1.329	0.008
6.3492	1.329	0.008
6.3694	1.328	0.007
6.3898	1.328	0.008
6.4103	1.328	0.008
6.4309	1.328	0.007
6.4516	1.326	0.006
6.4725	1.324	0.007
6.4935	1.324	0.008
6.5147	1.324	0.007
6.5359	1.322	0.008
6.5574	1.322	0.009
6.5789	1.322	0.008
6.6007	1.32	0.006
6.6225	1.318	0.007
6.6445	1.318	0.007
6.6667	1.316	0.007
6.689	1.315	0.008
6.7114	1.315	0.008
6.734	1.313	0.007
6.7568	1.311	0.008
6.7797	1.31	0.009
6.8027	1.309	0.008
6.8259	1.306	0.008
6.8493	1.304	0.011
6.8729	1.303	0.012
6.8966	1.303	0.014
6.9204	1.303	0.014
6.9444	1.302	0.014
6.9686	1.3	0.013
6.993	1.297	0.014
7.0175	1.293	0.016
7.0423	1.292	0.022
7.0671	1.295	0.026
7.0922	1.299	0.026
7.1174	1.3	0.025
7.1429	1.302	0.023
7.1685	1.304	0.02
7.1942	1.302	0.015
7.2202	1.297	0.012
7.2464	1.293	0.012
7.2727	1.29	0.012
7.2993	1.287	0.012
7.326	1.284	0.012
7.3529	1.281	0.012
7.3801	1.278	0.012
7.4074	1.275	0.012
7.4349	1.271	0.012
7.4627	1.267	0.012
7.4906	1.262	0.012
7.5188	1.258	0.013
7.5472	1.252	0.014
7.5758	1.247	0.015
7.6046	1.24	0.015
7.6336	1.232	0.016
7.6628	1.223	0.018
7.6923	1.212	0.02
7.722	1.2	0.025
7.7519	1.183	0.03
7.7821	1.161	0.037
7.8225	1.125	0.051
7.8431	1.063	0.092
7.874	1.009	0.232
7.9051	1.127	0.448
7.9365	1.443	0.45
7.9681	1.551	0.201
8.0	1.474	0.07
8.0321	1.409	0.032
8.0645	1.367	0.02
8.0972	1.339	0.016
8.1301	1.319	0.014
8.1633	1.303	0.013
8.1967	1.289	0.013
8.2305	1.276	0.012
8.2645	1.263	0.013
8.2988	1.251	0.014
8.3333	1.239	0.016
8.3682	1.228	0.018
8.4034	1.217	0.019
8.4388	1.203	0.022
8.4746	1.191	0.026
8.5106	1.176	0.03
8.547	1.163	0.037
8.5837	1.15	0.042
8.6207	1.133	0.048
8.658	1.115	0.057
8.6957	1.095	0.067
8.7336	1.072	0.081
8.7719	1.048	0.098
8.8106	1.021	0.121
8.8496	0.991	0.154
8.8889	0.961	0.199
8.9286	0.938	0.262
8.9686	0.932	0.341
9.009	0.956	0.428
9.0498	1.011	0.507
9.0909	1.092	0.561
9.1324	1.182	0.578
9.1743	1.261	0.564
9.2166	1.315	0.531
9.2593	1.346	0.496
9.3023	1.361	0.467
9.3458	1.366	0.448
9.3897	1.367	0.438
9.434	1.366	0.438
9.4787	1.367	0.446
9.5238	1.372	0.462
9.5694	1.385	0.486
9.6154	1.408	0.514
9.6618	1.445	0.547
9.7087	1.504	0.58
9.7561	1.592	0.6
9.8039	1.708	0.582
9.8522	1.822	0.499
9.901	1.877	0.363
9.9502	1.86	0.236
10.0	1.807	0.154
10.0503	1.756	0.106
10.101	1.71	0.077
10.1523	1.672	0.058
10.2041	1.639	0.045
10.2564	1.612	0.037
10.3093	1.587	0.03
10.3627	1.565	0.026
10.4167	1.546	0.024
10.4712	1.529	0.02
10.5263	1.512	0.019
10.582	1.497	0.017
10.6383	1.481	0.017
10.6952	1.466	0.017
10.7527	1.452	0.017
10.8108	1.439	0.019
10.8696	1.425	0.02
10.929	1.41	0.022
10.989	1.396	0.025
11.0497	1.381	0.029
11.1111	1.366	0.034
11.1732	1.35	0.043
11.236	1.333	0.053
11.2994	1.318	0.069
11.3636	1.309	0.089
11.4286	1.307	0.106
11.4943	1.307	0.118
11.5607	1.309	0.124
11.6279	1.305	0.121
11.6959	1.287	0.116
11.7647	1.258	0.123
11.8343	1.23	0.139
11.9048	1.196	0.156
11.976	1.142	0.186
12.0482	1.075	0.258
12.1212	1.041	0.391
12.1951	1.078	0.532
12.2699	1.143	0.65
12.3457	1.241	0.79
12.4224	1.442	0.923
12.5	1.744	0.93
12.5786	2.005	0.745
12.6582	2.095	0.475
12.7389	2.043	0.264
12.8205	1.951	0.146
12.9032	1.866	0.088
12.987	1.799	0.06
13.0719	1.748	0.048
13.1579	1.71	0.044
13.245	1.685	0.043
13.3333	1.666	0.038
13.4228	1.646	0.033
13.5135	1.629	0.03
13.6054	1.612	0.028
13.6986	1.596	0.027
13.7931	1.579	0.028
13.8889	1.564	0.032
13.986	1.549	0.04
14.0845	1.54	0.058
14.1844	1.546	0.071
14.2857	1.553	0.073
14.3885	1.556	0.071
14.4928	1.558	0.072
14.5985	1.562	0.07
14.7059	1.565	0.063
14.8148	1.562	0.057
14.9254	1.558	0.057
15.0376	1.562	0.059
15.1515	1.572	0.05
15.2672	1.568	0.032
15.3846	1.554	0.025
15.5039	1.545	0.025
15.625	1.538	0.025
15.748	1.535	0.028
15.873	1.535	0.026
16.0	1.53	0.024
16.129	1.527	0.023
16.2602	1.523	0.022
16.3934	1.52	0.022
16.5289	1.517	0.021
16.6667	1.514	0.02
16.8067	1.51	0.019
16.9492	1.508	0.019
17.094	1.504	0.018
17.2414	1.501	0.018
17.3913	1.498	0.018
17.5439	1.495	0.019
17.6991	1.492	0.019
17.8571	1.489	0.019
18.018	1.486	0.02
18.1818	1.485	0.021
18.3486	1.482	0.021
18.5185	1.48	0.022
18.6916	1.478	0.022
18.8679	1.476	0.023
19.0476	1.473	0.024
19.2308	1.471	0.025
19.4175	1.47	0.026
19.6078	1.468	0.026
19.802	1.466	0.028
20.0	1.465	0.028
20.202	1.464	0.028
20.4082	1.464	0.028
20.6186	1.462	0.025
20.8333	1.46	0.023
21.0526	1.455	0.021
21.2766	1.45	0.02
21.5054	1.444	0.019
21.7391	1.437	0.019
21.978	1.431	0.019
22.2222	1.423	0.019
22.4719	1.411	0.02
22.7273	1.4	0.024
22.9885	1.387	0.027
23.2558	1.37	0.034
23.5294	1.348	0.048
23.8095	1.323	0.073
24.0964	1.307	0.116
24.3902	1.311	0.169
24.6914	1.336	0.219
25.0	1.379	0.257
25.3165	1.433	0.275
25.641	1.485	0.273
25.974	1.53	0.258
26.3158	1.567	0.231
26.6667	1.589	0.198
27.027	1.597	0.164
27.3973	1.596	0.136
27.7778	1.59	0.116
28.169	1.582	0.101
28.5714	1.576	0.091
28.9855	1.566	0.084
29.4118	1.563	0.082
29.8507	1.56	0.073
30.303	1.555	0.069
30.7692	1.55	0.067
31.25	1.546	0.065
31.746	1.543	0.064
32.2581	1.54	0.063
32.7869	1.537	0.065
33.3333	1.536	0.066
33.8983	1.536	0.067
34.4828	1.536	0.069
35.0877	1.539	0.07
35.7143	1.544	0.071
36.3636	1.549	0.067
37.037	1.551	0.063
37.7358	1.55	0.06
38.4615	1.554	0.056
39.2157	1.555	0.051
40.0	1.555	0.046
40.8163	1.553	0.04
41.6667	1.551	0.035
42.5532	1.546	0.031
43.4783	1.542	0.03
44.4444	1.539	0.029
45.4545	1.535	0.028
46.5116	1.532	0.03
47.619	1.532	0.032
48.7805	1.531	0.031
50.0	1.529	0.033
51.2821	1.53	0.034
52.6316	1.53	0.035
54.0541	1.531	0.036
55.5556	1.533	0.034

Optical transmission calculator

Free-standing sample in vacuum, normal incidence

Transmittance T: —
Reflectance R: —

Fresnel reflection calculator

R_p: —
R_s: —
R = (R_p+R_s)/2: —
Phase φ_p: —
Phase φ_s: —
Brewster angle θ_B: —
Critical angle θ_C: —

(C₂H₆OSi)_n (Polydimethylsiloxane, PDMS): all datasets

About (C2H6OSi)n (Polydimethylsiloxane, PDMS)

Polydimethylsiloxane (PDMS, (C₂H₆OSi)_n) is a widely utilized silicon-based organic polymer known for its unique rheological properties. Characterized by its clear, viscous appearance, PDMS is optically transparent, rendering it particularly suitable for various optical applications. This elastomer exhibits a range of beneficial attributes: it's non-toxic, chemically inert, non-flammable, and resistant to ultraviolet radiation and ozone. Additionally, it is hydrophobic, meaning it repels water, and possesses excellent dielectric properties over a broad frequency range. These characteristics make PDMS an ideal choice for a multitude of applications, ranging from household products like shampoos and caulking to medical devices and microfluidic chips. In the realm of optics, the material's transparency across a broad spectrum combined with its flexibility has led to its use in soft lithography processes, waveguides, and even in the fabrication of flexible optical devices. The refractive properties of PDMS derive from its siloxane backbone, which imparts the material with its distinct optical and mechanical characteristics.

Polydimethylsiloxane - Wikipedia

More about (C2H6OSi)n (Polydimethylsiloxane, PDMS) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/organic/(C2H6OSi)n - polydimethylsiloxane/nk/Querry-IR.yml
ID: ds_2c5d163218ed
API: /v1/datasets/ds_2c5d163218ed

Plot