English
Related papers

Related papers: An analytical model for gold nanoparticle radiosen…

200 papers

The gold--gold collisions at $\sqrt{s_{NN}}=7.7$ and $11.5$GeV are simulated within the PHSD transport model. In each collision event, the spectator nucleons are separated and the fluidization procedure for the participants is performed.…

Nuclear Theory · Physics 2023-04-24 Nikita Tsegelnik , Evgeni Kolomeitsev , Vadym Voronyuk

The dependence of the surface plasmons resonance (SPR) frequency on the size of gold nanoparticles (GNPs) is experimentally studied. The measured data for the SPR frequency by UV-Vis spectroscopy and GNPs diameter by Dynamic Light…

Mesoscale and Nanoscale Physics · Physics 2017-10-03 R. Tsekov , P. Georgiev , S. Simeonova , K. Balashev

In this work, we combine electron microscopy measurements of the surface compositions in Cu-Au nanoparticles and atomistic simulations to investigate the effect of gold segregation. While this mechanism has been extensively investigated…

A hybrid structure of a graphene nanomesh with the gold nanodisks is studied to enhance the light absorption by localized surface plasmon resonance. From the reflection spectra of the visible range for graphene nanomesh samples without and…

Materials Science · Physics 2017-02-02 Yang Wu , Jing Niu , Mohammad Danesh , Jingbo Liu , Yuanfu Chen , Lin Ke , Chengwei Qiu , Hyunsoo Yang

The near-field scanning optical microscopic (NSOM) imaging of Au nanoparticles with size in the sub-wavelength limit (<wavelength/2N.A.) is reported. The NSOM imaging technique can resolve the objects which is beyond the scope of optical…

Materials Science · Physics 2017-05-23 Prajit Dhara , A. K. Sivadasan

The influence of delay-time between two sequential femtosecond pulses on the properties of nanoparticles obtained via laser ablation of gold in ethanol has been studied. The morphological and optical properties of the nanoparticles attained…

Mesoscale and Nanoscale Physics · Physics 2010-08-03 E. Axente , M. Barberoglou , P. G. Kuzmin , E. Magoulakis , P. A. Loukakos , E. Stratakis , G. A. Shafeev , C. Fotakis

We describe a simple model for the melting and optical properties of a DNA/gold nanoparticle aggregate. The aggregate is modeled as a cluster of gold nanoparticles on a periodic lattice connected by DNA bonds, and the extinction coefficient…

Condensed Matter · Physics 2015-06-24 Sung Yong Park , David Stroud

The computational study of energy storage and conversion processes calls for simulation techniques that can reproduce the electronic response of metal electrodes under electric fields. Despite recent advancements in machine-learning methods…

Materials Science · Physics 2024-05-14 Andrea Grisafi , Augustin Bussy , Mathieu Salanne , Rodolphe Vuilleumier

Surface plasmonic effects of metallic particles have been known to be an effective method to improve the performance light emitting didoes. In this work, we reported the sputtered Au nanoparticles enhanced electroluminescence in inverted…

Materials Science · Physics 2018-08-29 Abida Perveen , Xin Zhang , Jialun Tang , Dengbao Han , Shuai Chang , Luogen Deng , Wenyu Ji , Haizheng Zhong

The hypothesis of local equilibrium (LE) in relativistic heavy ion collisions at energies from AGS to RHIC is checked in the microscopic transport model. We find that kinetic, thermal, and chemical equilibration of the expanding hadronic…

In simulations of metallic interfaces, a critical aspect of metallic behavior is missing from the some of the most widely used classical molecular dynamics force fields. We present a modification of the embedded atom method (EAM) which…

Materials Science · Physics 2019-04-02 Hemanta Bhattarai , Kathie E. Newman , J. Daniel Gezelter

The two-photon luminescence (TPL) of gold nanoparticles (NP) was shown to result from the excitation of hot carriers, the plasmonic NP resonances playing an important role both for plasmon enhanced absorption and plasmon enhanced emission.…

Mesoscale and Nanoscale Physics · Physics 2019-08-05 Céline Molinaro , Sylvie Marguet , Ludovic Douillard , Fabrice Charra , Céline Fiorini-Debuisschert

The generation and utilization of hot charge carriers in plasmonic materials have emerged as a topic of significant importance, with profound implications across multiple disciplines, including optoelectronics, photovoltaics,…

Light-based nanowelding of metallic nanoparticles is of particular interest because it provides convenient and controlled means for the conversion of nanoparticles into microstructures and fabrication of nanodevices. Here, we demonstrated…

We extend Lamb's reduced density matrix laser theory to analyze the inhomogeneous molecular couplings and the mode-correlation in a plasmonic nano-laser consisting of a gold sphere and many dye molecules interacting with a driving optical…

Optics · Physics 2017-04-27 Yuan Zhang , Klaus Mølmer

Gold nanoparticles (AuNPs) are increasingly used for their thermoplasmonic properties, i.e. their ability to convert light into heat upon plasmon resonance. However, measuring temperature gradients generated at the microscale by assemblies…

Soft Condensed Matter · Physics 2022-09-02 Lucas Sixdenier , Guillaume Baffou , Christophe Tribet , Emmanuelle Marie

This work presents a study on the fundamental aspects of a reliable gold determination in voluminous mineral samples by Neutron Activation Analysis, using a Linear Particle Accelerator as a source of irradiation and a single detector as a…

Instrumentation and Detectors · Physics 2018-11-27 Eduardo Broglio , Leonardo Bennun , Victor Gillette

The COVID-19 pandemic has profoundly impacted global economies and healthcare systems, revealing critical vulnerabilities in both. In response, our study introduces a groundbreaking method for the detection of SARS-CoV-2 cDNA, leveraging…

We present a mode-resolved analysis of emission thresholds in metal nanoparticles embedded within an infinite gain medium, using Mie scattering theory as a rigorous framework. Focusing on the first three resonant modes, we identify the…

We investigate the modification of photoluminescence (PL) from single semiconductor nanocrystal quantum dots (NCs) in proximity of metal and semiconducting Atomic Force Microscope (AFM) tips. The presence of the tip alters the radiative…

Chemical Physics · Physics 2016-09-28 Yuval Ebenstein , Eyal Yoskovitz , Ronny Costi , Asaf Aharoni , Uri Banin