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“Needle beam:” Beyond-diffraction-limit concentration of field and transmitted power in dielectric waveguide
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10.1063/1.2358310
/content/aip/journal/apl/89/14/10.1063/1.2358310
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/14/10.1063/1.2358310

Figures

Image of FIG. 1.
FIG. 1.

Radial distribution of the -components of the magnetic field for the mode and of the electric field for the mode in medium I (a) and in media II and III (b) for . and (and and for the mode). The curves for and are practically undistinguished in media II and III on the plot; however, and are measured in different units. Dotted lines mark the zero. The curves for the mode ( mode) end in (a) and start in (b) at . Inset: schematics of cross section of the considered three-medium coaxial cylindrical waveguide.

Image of FIG. 2.
FIG. 2.

Radial distribution of the Poynting vector for the mode and for the mode for . and (and and for the mode). The dotted lines mark the interfaces with and are the I/II interfaces for the eigenmodes. The curves for and are undistinguished in medium II. .

Image of FIG. 3.
FIG. 3.

Radial distribution of the component of the electric field for the mode in medium I (a) and in media II and III (b) for . and (and and for the mode). The curves end in (a) and start in (b) at . Insert: part of power transmitted inside a cylindrical volume of radius (in units) for the mode and mode for . The smallest values correspond to the part of power transmitted through the whole medium I. and . and for the mode. The curves for the mode and mode start at and , respectively.

Tables

Generic image for table
Table I.

Values of and which support the and modes for and (and and for the mode).

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/content/aip/journal/apl/89/14/10.1063/1.2358310
2006-10-02
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: “Needle beam:” Beyond-diffraction-limit concentration of field and transmitted power in dielectric waveguide
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/14/10.1063/1.2358310
10.1063/1.2358310
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