Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reversal and tunability of the surface plasmon enhanced optical forces
  on a nanorod pair in the presence of a dielectric interlayer   We investigate numerically the modification of surface-plasmon assisted
optical force on a gold nanorod pair by incorporating dielectric interlayer.
The frequency dependent electromagnetic forces are obtained through
full-vectorial solution of Maxwell equations with a finite element solver. We
obtain the common and relative electromagnetic force experienced by the
nanorods with dielectric interlayers of different permittivity or thickness. In
particular, we demonstrate that the use of a liquid crystal interlayer can be
utilized as a dynamic tuning mechanism for the reversal of the direction of the
relative force.

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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: cs
31
The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an