Naslov
Quantum optics of dispersive dielectric media

Autori
Lenac, Zdravko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstract / Mozetič, M ; Šetina, J ; Kovač, J - Ljubljana : Društvo za vakuumsko tehniko Slovenije, 2004

Skup
10th JOINT VACUUM CONFERENCE

Mjesto i datum
Portorož, Slovenija, 28.09.2004. - 02.10.2004

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
surface polaritons; Wigner crystal; dispersive dielectric media

Sažetak
We quantize the electromagnetic field in a polar medium starting with the fundamental equations of motion. In our model the medium is described by a Lorenz— type dielectric function    r    appropriate e.g. for ionic crystals, metals and inert dielectrics. There are no restrictions on the spatial behavior of the dielectric function, i.e. there can be many different polar media with arbitrary shapes. We assume no losses in our system so the dielectric function for the whole space is assumed as real. The quantization procedure is based on an expansion of the total field (transverse and longitudinal) in terms of the coupled (polariton) eigenmodes, and this approach incorporates all previous results derived for similar but restricted systems (e.g. without spatial or frequency dependence of coupled modes). Within the same model, we also quantize the Hamiltonian of a nonretarded electromagnetic field in polar media. Particular attention is paid to the derivation of the orthogonality and closure relations, which are used in a discussion of the fundamental (equal— time) commutation relations between the conjugate field operators. As an example, we shall apply our theory to the quasi-two-dimensional Wigner crystal, formed by electrons at very low temperature. In particular, we shall discuss the influence of the quantized electromagnetic field on the dynamics of Wigner electrons, i.e., on the dispersion relation of Wigner phonons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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