Messanae Universitas Studiorum

Signatures of the electromagnetic field quantization in the nonlinear optical response of excitons

Savasta, Salvatore and Girlanda, Raffaello (1999) Signatures of the electromagnetic field quantization in the nonlinear optical response of excitons. Journal of Physics: Condensed Matter, 11. pp. 6045-6059. ISSN 0953-8984

[img]
Preview
PDF
Download (476Kb) | Preview

    Abstract

    We present a fully quantum mechanical theory for an interacting system of photonsand Coulomb correlated electrons and holes in a semiconductor, using a pertubation series in theexciting laser field. The theory provides microscopic descriptions of nonlinear optical processes insemiconductors related to the electromagnetic field quantization. As an application of the theorywe show that it is possible to transfer the exciton exciton Coulomb correlation to photons, thusproducing pairs of near-gap photons with a high degree of quantum entanglement. The photon pairsemerge from the spontaneous optical decay of biexcitons into two polaritons. The pair intensitycorrelations, calculated in the lowdensity limit for a CuCl slab and for semiconductor microcavities,exhibit quantum features which can be observed by coincidence detection.

    Item Type: Article
    Subjects: M.U.S. - Contributi Scientifici > 02 - Scienze fisiche
    Divisions: UNSPECIFIED
    Depositing User: Stage ICCU
    Date Deposited: 27 May 2005
    Last Modified: 13 Apr 2010 13:20
    URI: http://cab.unime.it/mus/id/eprint/312

    Actions (login required)

    View Item