Thermo-Optical Effects in Plasmonic Metal Nanostructures

Yeshchenko, Oleg A.; Pinchuk, Anatoliy O.

doi:10.15407/ujpe66.2.112

Cited by 4 publications

(2 citation statements)

References 102 publications

(180 reference statements)

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“…The width broadening is caused by increasing the collisional effect by the temperature-dependent friction coefficient, which can lead to a lower peak height at a higher temperature. The same trend of temperature-dependent spectra of the silver NP has been observed by an experiment (with much larger size) …”

Section: Resultssupporting

confidence: 83%

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Computational Analyses of Plasmonics of a Silver Nanoparticle in a Vacuum and in a Water Solution by Classical Electronic and Molecular Dynamics Simulations

Yamada

2022

J. Phys. Chem. A

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We present basic optical responses of a silver nanoparticle (Ag 309 ) in a vacuum and a water solution obtained by classical electronic and molecular dynamics (CEMD) calculations, where the CEMD is our previously developed force-field based molecular dynamics simulation method that incorporates the classical equation of motion for free electrons in metal and an interaction with the applied oscillating electric field (Yamada, A. J. Chem. Phys. 2021, 155, 174118)). The present work is the follow-up of the previous study. Calculated absorption spectra in the visible region with various conditions are reported together with parameter determination for realistic analyses as well as the verification of the method. Time-domain optical responses of Ag 309 in water solvent are as well analyzed in terms of the plasmon resonance excitation under a subpicosecond light pulse and its thermal relaxation.

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Section: Resultssupporting

confidence: 83%

“…The same trend of temperature-dependent spectra of the silver NP has been observed by an experiment (with much larger size). 60 Solvent Effect. Figure 3 shows the absorption spectra of Ag309 in a vacuum and in water solvent at 300 K. One can see the large red-shift from 3.58 eV (346 nm) to 3.03 eV (408 nm) caused by the solvent effect.…”

Section: ■ Simulationmentioning

confidence: 99%

Computational Analyses of Plasmonics of a Silver Nanoparticle in a Vacuum and in a Water Solution by Classical Electronic and Molecular Dynamics Simulations

Yamada

2022

J. Phys. Chem. A

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Heating of nanoparticles and their environment by laser radiation and applications

Pustovalov

2023

Nanotechnology and Precision Engineering

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This review considers the fundamental dynamic processes involved in the laser heating of metal nanoparticles and their subsequent cooling. Of particular interest are the absorption of laser energy by nanoparticles, the heating of a single nanoparticle or an ensemble thereof, and the dissipation of the energy of nanoparticles due to heat exchange with the environment. The goal is to consider the dependences and values of the temperatures of the nanoparticles and the environment, their time scales, and other parameters that describe these processes. Experimental results and analytical studies on the heating of single metal nanoparticles by laser pulses are discussed, including the laser thresholds for initiating subsequent photothermal processes, how temperature influences the optical properties, and the heating of gold nanoparticles by laser pulses. Experimental studies of the heating of an ensemble of nanoparticles and the results of an analytical study of the heating of an ensemble of nanoparticles and the environment by laser radiation are considered. Nanothermometry methods for nanoparticles under laser heating are considered, including changes in the refractive indices of metals and spectral thermometry of optical scattering of nanoparticles, Raman spectroscopy, the thermal distortion of the refractive index of an environment heated by a nanoparticle, and thermochemical phase transitions in lipid bilayers surrounding a heated nanoparticle. Understanding the sequence of events after radiation absorption and their time scales underlies many applications of nanoparticles. The application fields for the laser heating of nanoparticles are reviewed, including thermochemical reactions and selective nanophotothermolysis initiated in the environment by laser-heated nanoparticles, thermal radiation emission by nanoparticles and laser-induced incandescence, electron and ion emission of heated nanoparticles, and optothermal chemical catalysis. Applications of the laser heating of nanoparticles in laser nanomedicine are of particular interest. Significant emphasis is given to the proposed analytical approaches to modeling and calculating the heating processes under the action of a laser pulse on metal nanoparticles, taking into account the temperature dependences of the parameters. The proposed models can be used to estimate the parameters of lasers and nanoparticles in the various application fields for the laser heating of nanoparticles.

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Zinc-Doped Gold/Cobalt Ferrite Nanoparticles in Studying the Cytotoxic Effect on T-Lymphoblastic Leukemia Cells

et al. 2022

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Thermo-Optical Effects in Plasmonic Metal Nanostructures

Cited by 4 publications

References 102 publications

Computational Analyses of Plasmonics of a Silver Nanoparticle in a Vacuum and in a Water Solution by Classical Electronic and Molecular Dynamics Simulations

Computational Analyses of Plasmonics of a Silver Nanoparticle in a Vacuum and in a Water Solution by Classical Electronic and Molecular Dynamics Simulations

Heating of nanoparticles and their environment by laser radiation and applications

Zinc-Doped Gold/Cobalt Ferrite Nanoparticles in Studying the Cytotoxic Effect on T-Lymphoblastic Leukemia Cells

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