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Title: Optical properties and plasmonic response of silver-gallium nanostructures

Abstract

Silver and gallium form an alloy Ag2Ga via a room temperature spontaneous self-assembly that exhibits remarkable mechanical and electrical properties [1] suitable for nanoscale measurements [2]. However, whether photon excitation of plasmons in this emerging nanomaterial is retained or not has not been established. Here, we present a thin lm formation of Ag2Ga via a spreading- reactive process of liquid Ga on an Ag lm and a characterization of its dielectric function (E) = 1(E) - i 2(E) in the photon energy range 1.42 eV E <4.2 eV. It is observed that while the plasmon damping increases, near an energy of 3.4 eV, the real part of exhibits a crossing with respect to that of Ag. Furthermore, the impact of new plasmon supporting materials [3] is discussed and in order to enable further applications in plasmonics, the possibility of photon excitation of surface plasmons in Ag2Ga is studied.

Authors:
 [1];  [2];  [2];  [3];  [4]
  1. Aix-Marseille Univ., and CNRS/IN2P3, Marseille (France)
  2. Inst. Fresnel, Marseilles (France)
  3. NaugaNeedles, LLC, Louisville, KY (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1185591
Alternate Identifier(s):
OSTI ID: 1421011
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 6; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Lereu, Aude, Lemarchand, F., Zerrad, M., Yazdanpanah, M., and Passian, Ali. Optical properties and plasmonic response of silver-gallium nanostructures. United States: N. p., 2015. Web. doi:10.1063/1.4906950.
Lereu, Aude, Lemarchand, F., Zerrad, M., Yazdanpanah, M., & Passian, Ali. Optical properties and plasmonic response of silver-gallium nanostructures. United States. https://doi.org/10.1063/1.4906950
Lereu, Aude, Lemarchand, F., Zerrad, M., Yazdanpanah, M., and Passian, Ali. Thu . "Optical properties and plasmonic response of silver-gallium nanostructures". United States. https://doi.org/10.1063/1.4906950. https://www.osti.gov/servlets/purl/1185591.
@article{osti_1185591,
title = {Optical properties and plasmonic response of silver-gallium nanostructures},
author = {Lereu, Aude and Lemarchand, F. and Zerrad, M. and Yazdanpanah, M. and Passian, Ali},
abstractNote = {Silver and gallium form an alloy Ag2Ga via a room temperature spontaneous self-assembly that exhibits remarkable mechanical and electrical properties [1] suitable for nanoscale measurements [2]. However, whether photon excitation of plasmons in this emerging nanomaterial is retained or not has not been established. Here, we present a thin lm formation of Ag2Ga via a spreading- reactive process of liquid Ga on an Ag lm and a characterization of its dielectric function (E) = 1(E) - i 2(E) in the photon energy range 1.42 eV E <4.2 eV. It is observed that while the plasmon damping increases, near an energy of 3.4 eV, the real part of exhibits a crossing with respect to that of Ag. Furthermore, the impact of new plasmon supporting materials [3] is discussed and in order to enable further applications in plasmonics, the possibility of photon excitation of surface plasmons in Ag2Ga is studied.},
doi = {10.1063/1.4906950},
journal = {Journal of Applied Physics},
number = 6,
volume = 117,
place = {United States},
year = {Thu Feb 12 00:00:00 EST 2015},
month = {Thu Feb 12 00:00:00 EST 2015}
}

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Cited by: 19 works
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Works referencing / citing this record:

Oxide‐Mediated Formation of Chemically Stable Tungsten–Liquid Metal Mixtures for Enhanced Thermal Interfaces
journal, September 2019