Configuring the cancellation of optical near-fields
Configuring the cancellation of optical near-fields
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配置光学近场消除
DOI:
10.1117/12.796077
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Andrews D
中科院分区:
文献类型:
--
作者:
Andrews D
The characteristic near-field behavior of electromagnetic fields is open to a variety of interpretations. In a classical sense the term 'near-field' can be taken to signify a region, sufficiently close to some primary or secondary source, that the onset of retardation features is insignificant; a quantum theoretic explanation might focus more on the large momentum uncertainty that operates at small distances. Together, both near-field and wave-zone (radiative) features are fully accommodated in a retarded resonance propagation tensor, within which each component individually represents one asymptotic limit - alongside a third term that is distinctly operative at distances comparable to the optical wavelength. The propagation tensor takes different forms according to the level of multipole involved in the signal production and detection. In this presentation the nature and symmetry properties of the retarded propagation tensor are explored with reference to various forms of electric interaction, and it is shown how a suitable arrangement of optical beams can lead to the complete cancellation of near-fields. The conditions for such behavior are fully determined and some important optical trapping applications are discussed.
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DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
R. Woolley
通讯作者:
R. Woolley
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
R. Grinter
通讯作者:
R. Grinter
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
G. Scholes;D. Andrews
通讯作者:
D. Andrews
影响因子:
8.6
作者:
Metzger, N. K.;Marchington, R. F.;Wright, E. M.
通讯作者:
Wright, E. M.
影响因子:
3.6
作者:
Andrews DL
通讯作者:
Andrews DL