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Subwavelength plasmonics for graded-index optics on a chip.

Publication ,  Journal Article
Grajower, M; Lerman, GM; Goykhman, I; Desiatov, B; Yanai, A; Smith, DR; Levy, U
Published in: Optics letters
September 2013

Planar plasmonic devices are becoming attractive for myriad applications, owing to their potential compatibility with standard microelectronics technology and the capability for densely integrating a large variety of plasmonic devices on a chip. Mitigating the challenges of using plasmonics in on-chip configurations requires precise control over the properties of plasmonic modes, in particular their shape and size. Here we achieve this goal by demonstrating a planar plasmonic graded-index lens focusing surface plasmons propagating along the device. The plasmonic mode is manipulated by carving subwavelength features into a dielectric layer positioned on top of a uniform metal film, allowing the local effective index of the plasmonic mode to be controlled using a single binary lithographic step. Focusing and divergence of surface plasmons is demonstrated experimentally. The demonstrated approach can be used for manipulating the propagation of surface plasmons, e.g., for beam steering, splitting, cloaking, mode matching, and beam shaping applications.

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Published In

Optics letters

DOI

EISSN

1539-4794

ISSN

0146-9592

Publication Date

September 2013

Volume

38

Issue

18

Start / End Page

3492 / 3495

Related Subject Headings

  • Optics
  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics
 

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Grajower, M., Lerman, G. M., Goykhman, I., Desiatov, B., Yanai, A., Smith, D. R., & Levy, U. (2013). Subwavelength plasmonics for graded-index optics on a chip. Optics Letters, 38(18), 3492–3495. https://doi.org/10.1364/ol.38.003492
Grajower, Meir, Gilad M. Lerman, Ilya Goykhman, Boris Desiatov, Avner Yanai, David R. Smith, and Uriel Levy. “Subwavelength plasmonics for graded-index optics on a chip.Optics Letters 38, no. 18 (September 2013): 3492–95. https://doi.org/10.1364/ol.38.003492.
Grajower M, Lerman GM, Goykhman I, Desiatov B, Yanai A, Smith DR, et al. Subwavelength plasmonics for graded-index optics on a chip. Optics letters. 2013 Sep;38(18):3492–5.
Grajower, Meir, et al. “Subwavelength plasmonics for graded-index optics on a chip.Optics Letters, vol. 38, no. 18, Sept. 2013, pp. 3492–95. Epmc, doi:10.1364/ol.38.003492.
Grajower M, Lerman GM, Goykhman I, Desiatov B, Yanai A, Smith DR, Levy U. Subwavelength plasmonics for graded-index optics on a chip. Optics letters. 2013 Sep;38(18):3492–3495.
Journal cover image

Published In

Optics letters

DOI

EISSN

1539-4794

ISSN

0146-9592

Publication Date

September 2013

Volume

38

Issue

18

Start / End Page

3492 / 3495

Related Subject Headings

  • Optics
  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics