منابع مشابه
ua nt - p h / 98 05 03 5 v 1 1 2 M ay 1 99 8 Composite absorbing potentials
The multiple scattering interferences due to the addition of several contiguous potential units are used to construct composite complex potentials that absorb at an arbitrary set of incident momenta or for a broad momentum interval. Complex absorbing potentials are an important tool in stationary or time dependent scattering calculations [1]. They avoid spurious edge effects of the finite " box...
متن کاملDetermination of complex absorbing potentials from the electron self-energy.
The electronic conductance of a molecule making contact to electrodes is determined by the coupling of discrete molecular states to the continuum electrode density of states. Interactions between bound states and continua can be modeled exactly by using the (energy-dependent) self-energy or approximately by using a complex potential. We discuss the relation between the two approaches and give a...
متن کاملElectromagnetic Characterization of Composite Materials and Microwave Absorbing Modeling
This book chapter is based on the experimental activities conducted mainly at Sapienza University of Rome: Astronautic, Electric and Energetic Engineering Department in collaboration with University of Maryland, Institute for Research in Electronics and Applied Physics (IREAP). A branch of scientific research about composite materials is focused on electromagnetic characterization and subsequen...
متن کاملA thermally sensitive energy-absorbing composite functionalized by nanoporous carbon
Composite materials, especially polymer matrix composites, have been intensively studied for energy absorption applications. When the temperature is close to or higher than the glass transition temperature (Tg), the polymer matrix is usually viscoelastic. With an external loading, either dynamic or quasi-static, the relaxation of the network polymer chains would cause a considerable energy diss...
متن کاملResonance structure of composite and slightly absorbing spheres
Using optical levitation of individual 3-10-/Lm droplets, we investigate the resonance structure of the light intensity scattered at an angle of approximately 900 by a dielectric droplet, a slightly absorbing droplet, and composite inhomogeneous droplets. We find in all the cases that the resonance structures of dielectric, weakly absorbing, and composite inhomogeneous spheres are almost identi...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.80.5469