NDLI: The near-field effect in a system of two-level dipole particles

Content Provider	Springer Nature Link
Author	Gadomskii, O. N. Vorov, Yu. Yu.
Copyright Year	2000
Abstract	We have solved a self-consistent problem on interaction of two dipole atoms located at an arbitrary distance from each other with the field of a quasiresonance light wave, whose intensity is sufficient for the system to manifest nonlinear properties. The atoms are considered as two-level systems described by means of Bloch optical equations, while the field inside of the system includes both Coulomb and retarded parts. We consider a situation where atoms are identical and the distance between them is much smaller than the length of an outer light wave. The distribution of an electric field both inside of a small object and outside of it is found numerically. It is shown that the amplitude of the electric field in a wave zone depends substantially on the frequency of the external field and interatomic distance, while the field distribution differs from the field pattern of an electric dipole. At definite values of the external field intensity an optical multistability is a feature of the system under investigation. We have elucidated the conditions under which the multistability is manifested in the present system. The results obtained are considered as the near-field effect in the optics of small objects, which makes it possible to investigate the structure of small objects by means of optical radiation.
Starting Page	517
Ending Page	522
Page Count	6
File Format	PDF
ISSN	00219037
Journal	Journal of Applied Spectroscopy
Volume Number	67
Issue Number	3
e-ISSN	15738647
Language	English
Publisher	Springer US
Publisher Date	2000-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	near-field effect Coulomb and retarded polarizing fields two-level atoms Bloch equations optical multistability light-wave field inside of a small object field in a wave zone law of dispersion Analytical Chemistry Atomic and Molecular Structure and Spectra
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Condensed Matter Physics

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