Maxwell Fish-eye treated by Maxwell Equations

Tai, Chen-To

doi:10.1038/1821600b0

Cited by 34 publications

(32 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 In the effective medium regime, 6 the spatially controlled MMs can be treated as a gradient index material, which can be backdated to the establishment of Maxwell's fish's eye during 1860. 7 Luneburg lens is another example to manifest the light manipulation power of gradient index. 8 However, traditional gradient index cannot be found in natural occurring material due to its complexity in spatial distribution.…”

Section: Author(s) All Article Content Except Where Otherwise Notedmentioning

confidence: 99%

Broadband anomalous reflection based on gradient low-Q meta-surface

Chen

Wang

et al. 2013

AIP Advances

View full text Add to dashboard Cite

Gradient–index metamaterial is crucial in the spatial manipulation of electromagnetic wave. Here we present an efficient approach to extend the bandwidth of phase modulation by utilizing the broadband characteristic of low-quality (Q) meta-surface in the reflection mode. The dispersion of the meta-surface is engineered to compensate the phase difference induced by frequency change. Meanwhile, a thin gradient index cover layer is added on the top of meta-surface to extend the phase modulation range to cover the entire [0, 360°]. As a proof of concept, anomalous nearly perfect reflection with relative bandwidth near 40% is demonstrated in the microwave regime.

show abstract

Section: Author(s) All Article Content Except Where Otherwise Notedmentioning

confidence: 99%

Broadband anomalous reflection based on gradient low-Q meta-surface

Chen

Wang

et al. 2013

AIP Advances

View full text Add to dashboard Cite

show abstract

“…(30) represent the same combinations of modes that contribute to the integrated ponderomotive volume force Eq. (25). On the other hand, the single coefficients in the first line of Eq.…”

Section: Total Ponderomotive Forcementioning

confidence: 98%

“…(30) do not have an analog in Eq. (25), which suggests that it is probably necessary to use certain special properties as well as recurrence relations for the Mie coefficients [51].…”

Section: Total Ponderomotive Forcementioning

confidence: 99%

“…Crosses represent the data according to Eq. (25). As a check, the forces have been calculated alternatively in terms of the scattered radiation by numerically evaluating the scattering coefficients with Eq.…”

Section: B Total Ponderomotive Forcementioning

confidence: 99%

“…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%

See 2 more Smart Citations

Ponderomotive manipulation of cold subwavelength plasmas

2013

View full text Add to dashboard Cite

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.

show abstract

Transformation Optics: From Classic Theory and Applications to its New Branches

Sun

Zheng

Chen

et al. 2017

Laser & Photonics Reviews

View full text Add to dashboard Cite

In the modern world, the ability to manipulate and control electromagnetic waves has greatly changed people's lives. Novel optical and electromagnetic phenomena and devices will lead to new scientific trends and techniques in the future. The exploration of new theories of optical design and new materials for optical engineering has attracted great attention in recent years. Transformation optics (TO) provides a new way to design optical devices with extraordinary predesigned functions such as invisibility cloaks and electromagnetic wormholes. As the development of artificial electromagnetic media (e.g. metamaterials and metasurfaces) progresses, many of these novel optical devices designed by TO have been experimentally demonstrated and used in specific applications. Starting from the basic theory of transformation optics, we review its applications, extensions, new branches and recent developments in this paper.

show abstract

Maxwell Fish-eye treated by Maxwell Equations

Cited by 34 publications

References 1 publication

Broadband anomalous reflection based on gradient low-Q meta-surface

Broadband anomalous reflection based on gradient low-Q meta-surface

Ponderomotive manipulation of cold subwavelength plasmas

Transformation Optics: From Classic Theory and Applications to its New Branches

Contact Info

Product

Resources

About