TM waves in cylindrical superlattices (LANS) bounded by left-handed material (LHM)

Mousa, H. M.; Shabat, Mohammed M.

doi:10.1007/s00339-012-7482-5

Cited by 4 publications

(9 citation statements)

References 17 publications

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“…) , the normalized magnetic field increases by the mode's order increase to the value of (3,4,5). This is because of the real part increase of both the propagation number x k and s  to the values of (5.794, 6.943, 8.647) and (6.964, 7, 7.179) for M =3, 4, 5 respectively.…”

Section: In Lossless Cladding H X mentioning

confidence: 94%

“…LHM film occupies the region , f is the operating frequency. The electric and magnetic field vectors for TM waves propagating along z-axis with angular frequency  and wave number z k are defined as [5,6]:…”

Section: Derivation Of the Eigen -Value Equationmentioning

confidence: 99%

“…Recently, the so-called left handed material (LHM), or meta-material whose unit cell is devised to show unnatural electromagnetic (EM) properties applicable to advanced devices, have attracted great interest for research [1][2][3][4][5][6]. The manipulation of effective parameters for the artificial medium diversifies the application of LHM.…”

Section: Introductionmentioning

confidence: 99%

“…It is observed that by the wavelength decrease to the values of (1200, 900, 600) nm, the magnetic field of the mode trapped in the film increases to the values of (0.24, 0.4, 0.68) respectively accompanied by more wasting in the substrate as a result of z  increase to the values of (-10.93, -14.7, -22.549) which means the best absorption is attained at longer wavelength . (1,3,5,7). This implies the best absorption is achieved for lower order modes.…”

mentioning

confidence: 99%

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Simulation of An Asymmetric TM Metamaterial Waveguide Absorber

Mousa

2014

JAP

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This paper tackles the simulation of an asymmetric Â TM mode absorption Â in a lossy metamaterial (left-handed) slab (LHM) sandwiched between a lossy substrate and coverd by a losseless dielectric cladding. The asymmetry solutions of the eigen value equation describeÂ lossy â€“guided modes with complex â€“valued propagation constants .Â The dispersion relations , normalized field and the longitudinal attenuationÂ were numerically solved for a given set of parameters: frequency range; filmâ€™s thicknesses; and TM mode order. I found out that high order modes which are guided in thinner films are generally have more loss of power than low-order modes since the mode attenuation along z-axis increases to negative values by the mode's order increase and the film thickness decrease . Moreover, Â LHM , atÂ incident wavelength =1.9, refractive index=andÂ at thickness , Â Â guides the power betterÂ thanÂ RHMÂ or metal one. This LHMÂ Â is appropriate for solar cell applications. For arbitrary LHM, at frequency band of wavelengt(600, 700 to 1200 )nm, Â the best absorption is attained at longer wavelengths and for lower order modes at wider films.

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Section: In Lossless Cladding H X mentioning

confidence: 94%

Section: Derivation Of the Eigen -Value Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Simulation of An Asymmetric TM Metamaterial Waveguide Absorber

Mousa

2014

JAP

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“…The electric and magnetic field vectors for TE waves propagating along z-axis with angular frequency  and wavenumber z k are defined as in Refs. [23,24]:…”

Section: The Mathematical Formulation and Structure Modelmentioning

confidence: 99%

Simulation of an Asymmetric Transvers Electric TE Metamaterial Absorber

Mousa¹,

Shabat²,

Schaadt³

2017

JEE

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This paper introduces the principle method and simulation of an asymmetric TE (transverse electric) mode absorption in a lossy artificial metamaterial (LHM (left-handed material)). LHM is sandwiched between a lossy substrate and covered by a lossless dielectric cladding. The asymmetry solutions of the eigenvalue equation describe lossy-guided modes with complex-valued propagation constants. The dispersion relations, normalized field and the longitudinal attenuation were numerically solved for a given set of parameters: frequency range; film's thicknesses; and TE mode order. We found that high order modes, which are guided in thinner films, generally have more loss of power than low-order modes since the mode attenuation along z-axis , the modes of order (4, 5, 6) attain high positive attenuation which means these modes have larger absorption lengths and they are better absorber than the others. This LHM is appropriate for solar cell applications. For arbitrary LHM, at frequency band of wavelengt (600, 700 to 900 nm), the best absorption is attained at longer wavelengths and for lower order modes at wider films. The obtained results could be useful for the design of future light absorbers.

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Simulation of a Symmetry Metamaterial Waveguide Absorber(TE&TM)

Mousa

Shabat

2015

Energy Procedia

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TM waves in cylindrical superlattices (LANS) bounded by left-handed material (LHM)

Cited by 4 publications

References 17 publications

Simulation of An Asymmetric TM Metamaterial Waveguide Absorber

Simulation of An Asymmetric TM Metamaterial Waveguide Absorber

Simulation of an Asymmetric Transvers Electric TE Metamaterial Absorber

Simulation of a Symmetry Metamaterial Waveguide Absorber(TE&TM)

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