Theory of optical response in semiconductor heterostructures (Contributo in volume (capitolo o saggio))

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Label
  • Theory of optical response in semiconductor heterostructures (Contributo in volume (capitolo o saggio)) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
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  • N. Tomassini, L. Pilozzi, D. Schiumarini, A. D'Andrea (2003)
    Theory of optical response in semiconductor heterostructures
    Transworld Research Network, Kerala (India), 2003
    (literal)
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  • N. Tomassini, L. Pilozzi, D. Schiumarini, A. D'Andrea (literal)
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  • The work is a review paper on the optical properties of semiconductor heterostructures. (literal)
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  • Kerala (India) (literal)
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  • The work stress the importance of a self consistent theory to study the non-local optical response of mesoscopic quantum confined systems, and radiation-matter interaction in photonic crystals for light energy close to resonances due to the e-h quantum confinement (resonant photonic crystals). This theory is crucial to study new optical effects and simulate experimental results without fitting parameters. Indeed, the framework illustrated in this work is particularly well suited for optical calculation in nanostructures, and can be easily generalized to 2D and 3D superstructures or non-linear optics. Its range of validity goes from microwaves to the X-ray diffraction. The concepts of exciton dead-layer, additional boundary conditions and the effect of lattice strain on the band gap tailoring, alloy compositional and topological disorder are discussed in the semiclassical framework and effective mass approximation. The dispersion curves and the optical response of 1D resonant photonic crystal under Bragg conditions, where the well-well distance equals half the light wavelength at the exciton resonance, are computed; the transition from super-radiant regime to the photonic crystal is studied for a cluster of quantum wells. The scalability of the optical properties of the normal photonic crystals, lost in the resonant ones, is compensated by the strong enhancement of the dielectric function close to a resonance energy and the new optical properties due to its dispersive part. (literal)
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  • CNR (literal)
Titolo
  • Theory of optical response in semiconductor heterostructures (literal)
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  • Recent Research Development in Applied Physics, 6 (literal)
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