Dielectric-constant evaluation from microstructures

Ma, Hongru; Zhang, Baoshe; Tam, Wing Yim; Sheng, Ping

doi:10.1103/physrevb.61.962

Cited by 23 publications

(13 citation statements)

References 17 publications

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“…Among the latter, one finds extensions of the Maxwell-Garnett theory that go beyond dipolar interactions, 29,17 spectral representations, 31,33 or direct derivation of the light dispersion relation. 32 Here, we have used a different method that consists in finding the dielectric function ǫ eff of the equivalent homogeneous medium that has the same reflectance as the crystal surface;…”

Section: 31-34mentioning

confidence: 99%

Electron energy loss and induced photon emission in photonic crystals

Abajo

Blanco

2003

Phys. Rev. B

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The interaction of a fast electron with a photonic crystal is investigated by solving the Maxwell equations exactly for the external field provided by the electron in the presence of the crystal. The energy loss is obtained from the retarding force exerted on the electron by the induced electric field. The features of the energy loss spectra are shown to be related to the photonic band structure of the crystal. Two different regimes are discussed: for small lattice constants a relative to the wavelength of the associated electron excitations λ, an effective medium theory can be used to describe the material; however, for a ∼ λ the photonic band structure plays an important role. Special attention is paid to the frequency gap regions in the latter case.

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Section: 31-34mentioning

confidence: 99%

Electron energy loss and induced photon emission in photonic crystals

Abajo

Blanco

2003

Phys. Rev. B

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“…and references therein). Data are now available from different lepton-induced reaction experiments [1][2][3][4][5] and many of the theoretical studies [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] also concentrate on those reactions. It should be emphasized that the spin effects in the fragmentation processes can also be studied in polarized hadron-hadron collisions by measuring the properties of the hadrons in high transverse momentum p ⊥ jets created in these reactions [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Longitudinal polarization of hyperons in highp⊥jets in singly polarizedppcollisions at high energies

Liu

Liang

2002

Phys. Rev. D

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We calculate the longitudinal polarizations of hyperons in high p ⊥ jets in pp collisions in which one of the protons is longitudinally polarized at RHIC energies using different models for the spin transfer in fragmentation process. The results show that the measurements of these polarizations can be used to study the spin transfer in high energy fragmentation processes in general and to test the different models in particular. Our results show especially that the magnitude of the polarization of Λ is rather small whereas that of Σ + is considerably larger in the large rapidity region.The differences between the results from different pictures for Σ + polarizations is also much larger. Hence, the measurement of Σ + polarization should be more effective to distinguish between different models especially the SU(6) or the DIS picture for spin transfer in fragmentation processes.

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“…Recently, Levy and Bergman [131] also used it in their study of nonlinear optical susceptibility. In this regard, Sheng and coworkers [132] developed a practical algorithm for calculating the effective dielectric constants based on the spectral representation. In what follows, we restrict ourselves to a graded composite both in one dimension and three dimensions, and corresponding multilayer composites.…”

Section: Spectral Representation For Understanding the Effective Dielmentioning

confidence: 99%

Enhanced nonlinear optical responses of materials: Composite effects

2006

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We review recent theoretical progress in understanding physical processes of composite effects on enhanced third-order nonlinear optical responses of various kinds of the recently-proposed nonlinear optical materials, namely, colloidal nanocrystals with inhomogeneous metallodielectric particles or a graded-index host, metallic films with inhomogeneous microstructures adjusted by ion doping or temperature gradient, composites with compositional gradation or graded particles, and magneto-controlled ferrofluidbased nonlinear optical materials.

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Dielectric-constant evaluation from microstructures

Cited by 23 publications

References 17 publications

Electron energy loss and induced photon emission in photonic crystals

Electron energy loss and induced photon emission in photonic crystals

Longitudinal polarization of hyperons in highp⊥jets in singly polarizedppcollisions at high energies

Enhanced nonlinear optical responses of materials: Composite effects

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