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相关论文: Dipole model for far-field thermal emission of a n…

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Radiative heat exchange of spherical particles between each other and with thick polarizable plates is studied in the framework of fluctuation electrodynamics. An additive dipole approximation for the thermal conductance of micrometer sized…

其他凝聚态物理 · 物理学 2011-02-18 G. V. Dedkov , A. A. Kyasov

We identify a new mechanism for cooperative emission of light by an ensemble of N dipoles near a metal nanostructure supporting a surface plasmon.The cross-talk between emitters due to virtual plasmon exchange leads to a formation of three…

材料科学 · 物理学 2015-05-13 Vitaliy N. Pustovit , Tigran V. Shahbazyan

In this work we focus on the surface roughness correction to the near-field radiative heat transfer between a nanoparticle and a material with a rough surface utilizing a direct perturbation theory up to second order in the surface profile.…

介观与纳米尺度物理 · 物理学 2015-05-27 Svend-Age Biehs , Jean-Jacques Greffet

Placing quantum emitters close to a metallic nano-wire, an effective interaction can be achieved over distances large compared to the resonance wavelength due to the strong coupling between emitters and the surface plasmon modes of the…

量子物理 · 物理学 2015-05-28 David Dzsotjan , Juergen Kaestel , Michael Fleischhauer

There is so far no clear-cut experimental analysis that can determine whether dipole-dipole interactions enhance or reduce the blocking temperature $T_{B}$ of nanoparticle assemblies. It seems that the samples play a central role in the…

介观与纳米尺度物理 · 物理学 2019-07-12 F. Vernay , H. Kachkachi

The random-phase-approximation semiclassical scheme for description of plasmon excitations in large metallic nanospheres, with radius range 10-60 nm, is formulated in an all-analytical version. The spectrum of plasmons is determined…

介观与纳米尺度物理 · 物理学 2015-05-14 J. Jacak , J. Krasnyj , W. Jacak , R. Gonczarek , A. Chepok , L. Jacak

The particle-in-cell simulation is applied to study a nanometer-sized dielectric particle lofting from a dielectric substrate exposed to a low energy electron beam. The article discusses the electron accumulation between such a substrate…

We study the equilibrium properties of a dipolar Fermi gas at finite temperatures. We introduce a variational ansatz for the phase-space distribution function that can describe the deformation in both real and momentum space. The effect of…

其他凝聚态物理 · 物理学 2015-05-18 Yuki Endo , Takahiko Miyakawa , Tetsuro Nikuni

Using the Landauer-Buttiker theory we calculate the thermal conductance associated to plasmons modes in one dimensional arrays of nanoparticles closely spaced in a host fluid. Our numerical simulations show that the near-field interactions…

介观与纳米尺度物理 · 物理学 2008-01-25 Philippe Ben-Abdallah

We investigate numerically the role of near-field dipole-dipole interactions on the late emission dynamics of large disordered cold atomic samples driven by a weak field. Previous experimental and numerical studies of subradiance in…

原子物理 · 物理学 2021-04-07 Ana Cipris , Romain Bachelard , Robin Kaiser , William Guerin

Dispersion relations for dipolar modes propagating along a chain of metal nanoparticles are calculated by solving the full Maxwell equations, including radiation damping. The nanoparticles are treated as point dipoles, which means the…

光学 · 物理学 2009-11-10 W. H. Weber , G. W. Ford

A new type of excitations by highly focused electron beams in scanning transmission electron microscopes is predicted for nanoparticles. The calculated electron energy loss spectra of metallic (silver) and insulating (SiO(sub2))…

材料科学 · 物理学 2011-11-09 M. A. Itskovsky , H. Cohen , T. Maniv

We demonstrate in this work that the use of metasurfaces provides a viable strategy to largely tune and enhance near-field radiative heat transfer between extended structures. In particular, using a rigorous coupled wave analysis, we…

We propose a simple experimental technique to separately map the emission from electric and magnetic dipole transitions close to single dielectric nanostructures, using a few nanometer thin film of rare-earth ion doped clusters. Rare-earth…

We present measurements of the near-field heat transfer between the tip of a thermal profiler and planar material surfaces under ultrahigh vacuum conditions. For tip-sample distances below 10-8 m our results differ markedly from the…

介观与纳米尺度物理 · 物理学 2015-05-27 Achim Kittel , Wolfgang Müller-Hirsch , Jürgen Parisi , Svend-Age Biehs , Daniel Reddig , Martin Holthaus

We develop a fast, accurate, and robust technique to model the electromagnetic response of a two-dimensional (2D) waveguide-fed metasurface aperture. The geometry under consideration consists of a parallel-plate waveguide with an array of…

We study in this work the near-field radiative heat transfer between two semi-infinite parallel planes of highly n-doped semiconductors. Using a nonlocal model of the dielectric permittivity, usually used for the case of metallic planes, we…

材料科学 · 物理学 2015-07-20 F. Singer , Y. Ezzahri , Karl Joulain

The theoretical study of many-body effects in the context of near-field radiative heat transfer (NFRHT) has already led to the prediction of a plethora of thermal radiation phenomena. Special attention has been paid to nonreciprocal systems…

光学 · 物理学 2023-01-11 E. Moncada-Villa , J. C. Cuevas

We present the theory of out-of-plane (or vertical) electron thermal-field emission from 2D semimetals. We show that the current-voltage-temperature characteristic is well-captured by a universal scaling relation applicable for broad…

介观与纳米尺度物理 · 物理学 2023-04-18 L. K. Ang , Yee Sin Ang , Ching Hua Lee

We consider two parallel layers of dipolar ultracold Fermi gases at different temperatures and calculate the heat transfer between them. The effective interactions describing screening and correlation effects between the dipoles in a single…

原子物理 · 物理学 2016-03-09 B. Renklioglu , B. Tanatar , M. Ö. Oktel