Piezo-optical constants of gold

Szczepanek, P.S.; Glosser, R.

doi:10.1016/0038-1098(74)91395-7

Cited by 27 publications

(4 citation statements)

References 6 publications

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“…Table 1 shows the very good agreement between Au bulk critical points, previously determined by ARPES [37][38][39][40][41][42][43][44][45], and the results of the present investigation. Notably, Au bulk data have been obtained from different crystal faces by systematic change of the photon energy to scan the high symmetry direction perpendicular to the surface [37][38][39][40][41][42][43] or by complex triangulation methods [44,45]. Instead, our method gives the location of the same bulk critical points by the analysis of a single Au film with a few different photon energies.…”

Section: Resultssupporting

confidence: 86%

Energy-momentum mapping ofd-derived Au(111) states in a thin film

et al. 2016

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The quantum well states of a film can be used to sample the electronic structure of the parent bulk material and determine its band parameters. We highlight the benefits of two-dimensional film band mapping, with respect to complex bulk analysis, in an angle-resolved photoemission spectroscopy study of the 5d states of Au(111). Discrete 5d-derived quantum well states of various orbital characters form in Au (111)

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Section: Resultssupporting

confidence: 86%

Energy-momentum mapping ofd-derived Au(111) states in a thin film

et al. 2016

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“…As a consequence, the interband transition frequencies are modified. Changes of interband transition frequencies due to local compression/dilatation phenomena in the MNP are evaluated using deformation potentials where δ E 0, m is the energy change associated with the m th interband transition (eV); ξ m are the deformation potentials; dV / V is the local dilatation; | e | is the absolute value of the electron charge; and ℏ is the reduced Planck’s constant.…”

Section: Methodsmentioning

confidence: 99%

“…As a consequence, the inter-band transition frequencies are modified. Changes of inter-band transition frequencies due to local compression/dilatation phenomenon in the MNP are evaluated using deformation potentials 37 :…”

Section: Relation Between Metal Dielectric Permittivity and Elastic Strainsmentioning

confidence: 99%

Numerical Modeling of Acousto–Plasmonic Coupling in Metallic Nanoparticles

2020

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“…Aside from modifying the ED, the deformation of the particle also modifies the interband transition frequencies via the DP. The shifts in ω 0, m are calculated using the DPs for gold and silver: δ E 0, m = ξ m (d V / V ), where ξ m and δ E 0, m are the DPs and change in energy of the m th transition, and the interband transition frequency and energy are related by E 0, m = ℏω 0, m (refs and ). Details of the calculation of the dielectric constant are provided in the SI.…”

Section: Methodsmentioning

confidence: 99%

Understanding How Acoustic Vibrations Modulate the Optical Response of Plasmonic Metal Nanoparticles

2017

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Measurements of acoustic vibrations in nanoparticles provide an opportunity to study mechanical phenomena at nanometer length scales and picosecond time scales. Vibrations in noble-metal nanoparticles have attracted particular attention because they couple to plasmon resonances in the nanoparticles, leading to strong modulation of optical absorption and scattering. There are three mechanisms that transduce the mechanical oscillations into changes in the plasmon resonance: (1) changes in the nanoparticle geometry, (2) changes in electron density due to changes in the nanoparticle volume, and (3) changes in the interband transition energies due to compression/expansion of the nanoparticle (deformation potential). These mechanisms have been studied in the past to explain the origin of the experimental signals; however, a thorough quantitative connection between the coupling of phonon and plasmon modes has not yet been made, and the separate contribution of each coupling mechanism has not yet been quantified. Here, we present a numerical method to quantitatively determine the coupling between vibrational and plasmon modes in noble-metal nanoparticles of arbitrary geometries and apply it to silver and gold spheres, shells, rods, and cubes in the context of time-resolved measurements. We separately determine the parts of the optical response that are due to shape changes, changes in electron density, and changes in deformation potential. We further show that coupling is, in general, strongest when the regions of largest electric field (plasmon mode) and largest displacement (phonon mode) overlap. These results clarify reported experimental results and should help guide future experiments and potential applications.

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Piezo-optical constants of gold

Cited by 27 publications

References 6 publications

Energy-momentum mapping ofd-derived Au(111) states in a thin film

Energy-momentum mapping ofd-derived Au(111) states in a thin film

Numerical Modeling of Acousto–Plasmonic Coupling in Metallic Nanoparticles

Understanding How Acoustic Vibrations Modulate the Optical Response of Plasmonic Metal Nanoparticles

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