Optical constants of Cu, Ag, and Au revisited

Shaista Babar; J. H. Weaver

doi:10.1364/AO.54.000477

Optical constants of Cu, Ag, and Au revisited

Shaista Babar and J. H. Weaver

Applied Optics
Vol. 54,
Issue 3,
pp. 477-481
(2015)
•https://doi.org/10.1364/AO.54.000477

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Shaista Babar and J. H. Weaver, "Optical constants of Cu, Ag, and Au revisited," Appl. Opt. 54, 477-481 (2015)

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Related Topics
Table of Contents Category
- Materials
Optics & Photonics Topics
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The topics in this list come from the OSA Optics and Photonics Topics applied to this article.
Previously assigned OCIS codes
- Optical properties (160.4760)
- Surface plasmons (240.6680)
- Plasmonics (250.5403)
- Nanophotonics and photonic crystals (350.4238)
- Absorption (300.1030)
- Thin films, optical properties (310.6860)

About this Article
History
- Original Manuscript: October 8, 2014
- Manuscript Accepted: November 23, 2014
- Published: January 15, 2015
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Abstract

We have determined the optical constants in the energy range 0.1–6 eV for bulk Cu, Ag, and Au using Kramers–Kronig analysis of previously unpublished reflectance data. The results are compared to those commonly used from the literature.

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	Cu			Ag			Au
$E$ (eV)	$R$	$ε_{1}$	$ε_{2}$	$R$	$ε_{1}$	$ε_{2}$	$R$	$ε_{1}$	$ε_{2}$
0.10	0.994	$- 7180.10$	1911.20	0.997	$- 7461.30$	878.91	0.995	$- 6991.50$	1507.60
0.15	0.994	$- 3410.30$	601.93	0.996	$- 3557.80$	385.58	0.995	$- 3173.20$	453.84
0.20	0.994	$- 1957.60$	263.71	0.996	$- 2045.30$	167.58	0.995	$- 1795.60$	192.16
0.25	0.994	$- 1265.20$	137.08	0.996	$- 1321.50$	89.36	0.995	$- 1150.60$	98.35
0.30	0.994	$- 881.95$	79.30	0.996	$- 921.87$	52.04	0.995	$- 797.94$	56.74
0.35	0.994	$- 648.36$	49.85	0.996	$- 678.29$	33.28	0.995	$- 585.08$	35.61
0.40	0.994	$- 495.91$	33.39	0.996	$- 519.61$	22.62	0.995	$- 444.42$	23.58
0.45	0.994	$- 391.07$	23.48	0.996	$- 410.43$	16.09	0.994	$- 350.20$	19.82
0.50	0.994	$- 315.94$	17.12	0.996	$- 332.14$	11.87	0.994	$- 284.22$	14.49
0.55	0.994	$- 260.24$	12.83	0.996	$- 274.11$	9.02	0.994	$- 234.07$	10.84
0.60	0.994	$- 217.80$	9.84	0.996	$- 229.91$	7.02	0.994	$- 195.87$	8.30
0.65	0.994	$- 184.71$	7.71	0.996	$- 195.46$	5.56	0.994	$- 165.98$	6.48
0.70	0.994	$- 158.43$	6.14	0.996	$- 168.08$	4.50	0.994	$- 142.26$	5.15
0.75	0.994	$- 137.21$	4.98	0.996	$- 145.98$	3.73	0.994	$- 122.75$	4.13
0.80	0.994	$- 119.82$	4.08	0.996	$- 127.90$	3.14	0.993	$- 107.13$	3.93
0.85	0.994	$- 105.40$	3.38	0.996	$- 112.92$	2.67	0.993	$- 94.43$	3.26
0.90	0.994	$- 93.30$	2.83	0.996	$- 100.34$	2.29	0.993	$- 83.54$	2.72
0.95	0.994	$- 83.04$	2.40	0.995	$- 89.71$	2.00	0.993	$- 74.17$	2.28
1.00	0.994	$- 74.28$	2.05	0.995	$- 80.64$	1.76	0.992	$- 66.27$	2.20
1.10	0.994	$- 60.16$	1.52	0.995	$- 66.06$	1.37	0.992	$- 53.74$	1.61
1.20	0.993	$- 49.38$	1.18	0.995	$- 54.93$	1.08	0.991	$- 43.98$	1.35
1.30	0.993	$- 40.96$	0.94	0.995	$- 46.26$	0.89	0.990	$- 36.45$	1.14
1.40	0.993	$- 34.22$	0.78	0.994	$- 39.38$	0.74	0.989	$- 30.43$	0.96
1.50	0.992	$- 28.74$	0.67	0.994	$- 33.80$	0.64	0.988	$- 25.50$	0.81
1.60	0.991	$- 24.17$	0.59	0.993	$- 29.25$	0.57	0.986	$- 21.43$	0.73
1.70	0.988	$- 20.31$	0.58	0.992	$- 25.48$	0.52	0.984	$- 17.99$	0.65
1.80	0.984	$- 16.99$	0.60	0.991	$- 22.32$	0.48	0.979	$- 14.98$	0.66
1.90	0.977	$- 14.12$	0.66	0.991	$- 19.64$	0.44	0.968	$- 12.44$	0.77
2.00	0.970	$- 11.43$	0.64	0.990	$- 17.34$	0.40	0.953	$- 10.25$	0.87
2.10	0.948	$- 8.50$	0.74	0.988	$- 15.35$	0.39	0.925	$- 8.26$	1.05
2.20	0.745	$- 5.54$	2.49	0.986	$- 13.64$	0.37	0.880	$- 6.54$	1.26
2.30	0.600	$- 4.88$	4.69	0.985	$- 12.13$	0.36	0.807	$- 4.95$	1.48
2.40	0.590	$- 5.07$	5.45	0.983	$- 10.81$	0.34	0.647	$- 3.18$	1.86
2.50	0.580	$- 4.92$	5.57	0.981	$- 9.64$	0.32	0.438	$- 1.92$	2.79
2.60	0.570	$- 4.70$	5.53	0.979	$- 8.58$	0.31	0.331	$- 0.83$	3.95
2.70	0.552	$- 4.31$	5.44	0.976	$- 7.64$	0.29	0.356	$- 0.89$	5.06
2.80	0.532	$- 3.92$	5.37	0.974	$- 6.78$	0.27	0.368	$- 1.02$	5.34
2.90	0.515	$- 3.60$	5.31	0.971	$- 5.99$	0.25	0.368	$- 0.94$	5.54
3.00	0.495	$- 3.22$	5.17	0.968	$- 5.25$	0.23	0.369	$- 0.90$	5.69
3.10	0.469	$- 2.78$	5.15	0.963	$- 4.57$	0.23	0.371	$- 0.92$	5.77
3.20	0.453	$- 2.52$	5.20	0.959	$- 3.92$	0.20	0.368	$- 0.87$	5.72
3.30	0.438	$- 2.27$	5.13	0.944	$- 3.29$	0.22	0.362	$- 0.76$	5.68
3.40	0.421	$- 2.00$	5.13	0.920	$- 2.70$	0.25	0.356	$- 0.64$	5.66
3.50	0.410	$- 1.81$	5.14	0.875	$- 2.14$	0.31	0.349	$- 0.49$	5.65
3.60	0.400	$- 1.64$	5.13	0.805	$- 1.59$	0.36	0.346	$- 0.37$	5.75
3.70	0.393	$- 1.53$	5.10	0.700	$- 1.05$	0.39	0.351	$- 0.38$	5.93
3.80	0.384	$- 1.40$	4.99	0.425	$- 0.33$	0.40	0.360	$- 0.56$	6.01
3.90	0.372	$- 1.22$	4.92	0.065	0.52	0.80	0.366	$- 0.74$	5.91
4.00	0.361	$- 1.04$	4.87	0.090	1.17	1.66	0.369	$- 0.88$	5.75
4.10	0.350	$- 0.86$	4.83	0.146	1.19	2.52	0.368	$- 0.93$	5.57
4.20	0.337	$- 0.63$	4.84	0.191	0.87	3.08	0.367	$- 0.97$	5.41
4.30	0.331	$- 0.46$	4.98	0.217	0.57	3.31	0.368	$- 1.04$	5.28
4.40	0.331	$- 0.39$	5.12	0.235	0.35	3.44	0.370	$- 1.13$	5.08
4.50	0.334	$- 0.37$	5.25	0.249	0.15	3.48	0.370	$- 1.20$	4.83
4.60	0.339	$- 0.42$	5.38	0.256	0.03	3.46	0.364	$- 1.18$	4.52
4.70	0.346	$- 0.51$	5.48	0.263	$- 0.09$	3.44	0.354	$- 1.08$	4.28
4.80	0.355	$- 0.66$	5.57	0.265	$- 0.15$	3.37	0.344	$- 0.98$	4.07
4.90	0.367	$- 0.90$	5.61	0.267	$- 0.19$	3.33	0.332	$- 0.86$	3.88
5.00	0.379	$- 1.17$	5.48	0.269	$- 0.24$	3.27	0.319	$- 0.73$	3.71
5.10	0.384	$- 1.33$	5.31	0.269	$- 0.26$	3.20	0.307	$- 0.61$	3.59
5.20	0.392	$- 1.50$	5.14	0.267	$- 0.27$	3.13	0.295	$- 0.49$	3.48
5.30	0.397	$- 1.63$	4.90	0.265	$- 0.26$	3.08	0.285	$- 0.40$	3.39
5.40	0.400	$- 1.69$	4.65	0.264	$- 0.26$	3.04	0.275	$- 0.31$	3.30
5.50	0.401	$- 1.73$	4.42	0.263	$- 0.28$	3.00	0.265	$- 0.21$	3.22
5.60	0.402	$- 1.74$	4.18	0.264	$- 0.30$	2.96	0.256	$- 0.13$	3.14
5.70	0.402	$- 1.74$	3.94	0.265	$- 0.32$	2.90	0.246	$- 0.05$	3.05
5.80	0.398	$- 1.69$	3.70	0.265	$- 0.35$	2.84	0.236	0.05	2.98
5.90	0.394	$- 1.63$	3.49	0.265	$- 0.37$	2.77	0.227	0.13	2.92
6.00	0.385	$- 1.51$	3.26	0.266	$- 0.39$	2.69	0.218	0.22	2.86

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