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Nano Lett. 2008 Dec;8(12):4243-7. doi: 10.1021/nl801942x.

Ray optics at a deep-subwavelength scale: a transformation optics approach.

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1
NSF Nanoscale Science and Engineering Center, University of California, Berkeley, California 94720, USA.

Abstract

We present a transformation optics approach for molding the light flow at the deep-subwavelength scale, using metamaterials with uniquely designed dispersion. By conformal transformation of the electromagnetic space, we develop a methodology for realizing subwavelength ray optics with curved ray trajectories. This enables deep-subwavelength-scale beams to flow through two- or three-dimensional spaces.

PMID:
19367843
DOI:
10.1021/nl801942x
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