Electromagnetic scattering by an exponentially inhomogeneous plasma sphere

Bisbing, Paul E

doi:10.1109/tap.1966.1138655

Cited by 12 publications

(4 citation statements)

References 6 publications

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“…In Figure 7, the backscatter cross section is shown computed with a MATLAB script for several values. The results compare agreeably to results in open literature [11] (see Figure 1 provided in the reference).…”

Section: Radially Layered Spheressupporting

confidence: 90%

“…The team will compare predictions made by VERTEX-MAXWELL with those obtained using Mie solutions for radially inhomogenous spheres. The distributions tested will be chosen from literature [ 11,12], and provide a means to test the solver when strong spatial gradients are present in r . The team will also test the ability of the solver to function in the numerically unfavorable limit where r takes a negative value and therefore acts as a conductor.…”

Section: Radially Layered Spheresmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic Field Simulation Utilizing VERTEX

Plechaty,

Glasby,

Slattery

et al. 2023

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Section: Radially Layered Spheressupporting

confidence: 90%

Section: Radially Layered Spheresmentioning

confidence: 99%

Electromagnetic Field Simulation Utilizing VERTEX

Plechaty,

Glasby,

Slattery

et al. 2023

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“…Namely, substituting Eq. (27) together with the results (C5)-(C12) in the force expressions Eqs. (25) and (26), it is found that contributions to the total force act in opposite directions, since χ 1 is negative for plasmas.…”

Section: Total Ponderomotive Forcementioning

confidence: 90%

“…The plasma is modeled as a sphere with a radially varying permittivity, and the electric field distribution is calculated by solving the macroscopic Maxwell equations in terms of an expansion in Debye potentials. This approach is commonly used to study the far-field scattering properties of finite objects [23][24][25][26][27][28][29][30], with little attention for the electromagnetic fields inside the object. An exception is a recent calculation of resonance absorption in dense atomic clusters based on the internal fields [31].…”

Section: Introductionmentioning

confidence: 99%

Ponderomotive manipulation of cold subwavelength plasmas

2013

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Ponderomotive forces (PFs) induced in cold subwavelength plasmas by an externally applied electromagnetic wave are studied analytically. To this end, the plasma is modeled as a sphere with a radially varying permittivity, and the internal electric fields are calculated by solving the macroscopic Maxwell equations using an expansion in Debye potentials. It is found that the PF is directed opposite to the plasma density gradient, similarly to large-scale plasmas. In the case of a uniform density profile, a residual spherically symmetric compressive PF is found, suggesting possibilities for contactless ponderomotive manipulation of homogeneous subwavelength objects. The presence of a surface PF on discontinuous plasma boundaries is derived. This force is essential for a microscopic description of the radiation-plasma interaction consistent with momentum conservation. It is shown that the PF integrated over the plasma volume is equivalent to the radiation pressure exerted on the plasma by the incident wave. The concept of radiative acceleration of subwavelength plasmas, proposed earlier, is applied to ultracold plasmas. It is estimated that these plasmas may be accelerated to keV ion energies, resulting in a neutralized beam with a brightness comparable to that of current high-performance ion sources.

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