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Cited by 20,094Surface and Thin Film PhenomenaPlasmonic and Surface Plasmon ResearchOptical Coatings and Gratings

Optical Constants of the Noble Metals

Johnson, P. B., Christy, R. W.·1972·Physical Review B
DOI 10.1103/physrevb.6.4370
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Abstract

The optical constants $n$ and $k$ were obtained for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at room temperature, in the spectral range 0.5-6.5 eV. The film-thickness range was 185-500 \AA{}. Three optical measurements were inverted to obtain the film thickness $d$ as well as $n$ and $k$. The estimated error in $d$ was \ifmmode\pm\else\textpm\fi{} 2 \AA{}, and that in $n$, $k$ was less than 0.02 over most of the spectral range. The results in the film-thickness range 250-500 \AA{} were independent of thickness, and were unchanged after vacuum annealing or aging in air. The free-electron optical effective masses and relaxation times derived from the results in the near infrared agree satisfactorily with previous values. The interband contribution to the imaginary part of the dielectric constant was obtained by subtracting the free-electron contribution. Some recent theoretical calculations are compared with the results for copper and gold. In addition, some other recent experiments are critically compared with our results.

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Crossref · 10.1103/physrevb.6.4370

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  • For circularly polarized light, the phase gradient is geometrically induced by spatially varying the orientation of identical nanobricks, leading to a Pancharatnam-Berry phase.

    “For circularly polarized light, on the other hand, the phase gradient is geometrically induced by spatially varying the orientation of the identical nanobricks, hereby leading to a so-called Pancharatnam-Berry phase[34, 35].”

    From Plasmonic metagratings for simultaneous determination of Stokes parameters (2015) · cites this paper as [34]

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Authors
Johnson, P. B., & Christy, R. W.
Affiliations
Dartmouth College (US)
Venue
Physical Review B
Publisher
American Physical Society (APS)
Published
1972-12-15
Volume
6
Issue
12
Pages
4370-4379
ISSN
0556-2805 (ISSN-L)
DOI
10.1103/physrevb.6.4370
OpenAlex
W2083926174
Cited by
20,094
References
36
Citations by year
2026: 704 · 2025: 761 · 2024: 864 · 2023: 887 · 2022: 1059 · 2021: 1051 · 2020: 1100 · 2019: 1140 · 2018: 1158 · 2017: 1144 · 2016: 1185 · 2015: 1108 · 2014: 1116 · 2013: 1056 · 2012: 988
FWCI
11.04
Type
journal article
Language
en
Open access
closed
Licence
link.aps.org/licenses/aps-default-license (vor)
Locations
Physical review. B, Solid state (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Surface and Thin Film Phenomena
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
  • Physical Sciences › Materials Science › Surfaces, Coatings and Films › Optical Coatings and Gratings
Keywords
optical constants, refractive index, extinction coefficient, noble metals, copper, silver, gold, thin films, film thickness measurement, relaxation time, dielectric constant, near-infrared, vacuum annealing, air aging

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