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The induced nonlinear electric dipole and higher moments in an atomic system, irradiated simultaneously by two or three light waves, are calculated by quantum-mechanical perturbation theory. Terms quadratic and cubic in the field amplitudes are included. An important permutation symmetry relation for the nonlinear polarizability is derived and its frequency dependence is discussed. The nonlinear microscopic properties are related to an effective macroscopic nonlinear polarization, which may be incorporated into Maxwell's equations for an infinite, homogeneous, anisotropic, nonlinear, dielectric medium. Energy and power relationships are derived for the nonlinear dielectric which correspond to the Manley-Rowe relations in the theory of parametric amplifiers. Explicit solutions are obtained for the coupled amplitude equations, which describe the interaction between a plane light wave and its second harmonic or the interaction between three plane electromagnetic waves. Third-harmonic generation and interaction between more waves is mentioned. Applications of the theory to the dc and microwave Kerr effect, light modulation, harmonic generation, and parametric conversion are discussed.

Notas/Comentarios de Ignacio Esquivias:
En este artículo se presenta un tratamiento mecánico cuántico del campo dipolar en un sistema atómico irradiado simultáneamente con dos o tres ondas luminosas, que dio lugar a los fundamentos teóricos de la óptica no lineal. Ha sido muy influyente en el desarrollo teórico y experimental de la óptica no lineal, que tiene múltiples aplicaciones hoy en día.

Especificaciones

  • Autor/es: J. A. Armstrong, N. Bloembergen, J. Ducuing, P.S. Pershan.
  • Fecha: 1962-09
  • Publicado en: Physical Review, Volume 127, Number 6. September 1962, Pages 1918-1939.
  • Idioma: Inglés
  • Formato: PDF
  • Contribución: Ignacio Esquivias Moscardó.
  • Palabras clave: Láseres y electroóptica
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