Spectral Features due to Dipole-Dipole Interactions in Optical Harmonic Generation

Hideaki MATSUEDA
Shozo TAKENO

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E79-A    No.10    pp.1707-1712
Publication Date: 1996/10/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Nonlinear Theory and its Applications (NOLTA))
Category: Control and Optics
Keyword: 
dipole-dipole interaction,  quantum mechanical matter-radiation dynamics,  split energy levels,  nonlinear spectral features,  second harmonic generation (SHG),  quantum gates,  

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Summary: 
The dipole-dipole interaction in the quantum mechanical treatment of the matter-radiation dynamics, is shown to give rise to split energy levels reminiscent of the nonlinear coupled spectral features as well as a self-sustained coherent modes. Wiener's theory of nonlinear random processes is applied to the second harmonic generation (SHG), leading also to coupled spectral pulling and dipping features, due to the dual noise sources in the fundamental and the harmonic polarizations. Furthermore, the nonlinear spectral features are suggested to be applied to implement quantum (qubit) gates for computation.