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ЖУРНАЛЫ // Письма в Журнал экспериментальной и теоретической физики // Архив

Письма в ЖЭТФ, 2012, том 96, выпуск 4, страницы 262–267 (Mi jetpl3209)

Эта публикация цитируется в 3 статьях

КОНДЕНСИРОВАННОЕ СОСТОЯНИЕ

Two-dimensional plasmonic eigenmode nanolocalization in an inhomogeneous metal-dielectric-metal slot waveguide

D. A. Smirnovaa, A. I. Smirnovb, A. A. Zharovab

a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
b Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod

Аннотация: We show that transverse, with respect to the propagation direction, local narrowing of a metal-dielectric-metal plasmonic slot waveguide leads to a two-dimensional surface plasmon nanolocalization and can squeeze the plasmon eigenmode into a spot with a characteristic size of about several tens of nanometers. We demonstrate that the simultaneous waveguide tapering and decreasing transverse narrowing scale make possible an enhancement of the plasmon propagation distance in comparison with the homogeneous waveguide. We also find the fundamental limit of 2D plasmon nanolocalization, which is of the same order as the depth of penetration of the electromagnetic field into a metal which is actually independent of the field frequency in the near infrared domain.

Поступила в редакцию: 10.05.2012
Исправленный вариант: 06.06.2012

Язык публикации: английский


 Англоязычная версия: Journal of Experimental and Theoretical Physics Letters, 2012, 96:4, 245–250

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