Subwavelength Hyperlens Resolution With Perfect Contrast Function

Andrey Novitsky*, Taavi Repän, Sergei Zhukovsky, Andrei Lavrinenko

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Recently it has been shown that plasmonic effects in hyperbolic metamaterials may facilitate overcoming the diffraction limit and enhance the contrast function of an image by filtering background radiation. Unfortunately, the contrast function of such a dark‐field hyperlens degrades in the deep‐subwavelength regime. We push forward the concept of the contrast function revival in the subwavelength imaging by introduction of the proper phase difference between coherent sources. To study this effect we develop a simplified theory of the wave propagation through a hyperbolic metamaterial and show that, in principle, two sources standing apart at any subwavelength distance can be distinguished. We suggest two feasible designs, the first of which employs the obliquely incident light, while the second one is based on a properly designed metasurface. The concept can be used in high‐contrast subwavelength microscopy.
Original languageEnglish
Article number1700300
JournalAnnalen der Physik
Volume530
Issue number3
Number of pages9
ISSN0003-3804
DOIs
Publication statusPublished - 2018

Keywords

  • hyperlens
  • metamaterials
  • superresolution

Cite this

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title = "Subwavelength Hyperlens Resolution With Perfect Contrast Function",
abstract = "Recently it has been shown that plasmonic effects in hyperbolic metamaterials may facilitate overcoming the diffraction limit and enhance the contrast function of an image by filtering background radiation. Unfortunately, the contrast function of such a dark‐field hyperlens degrades in the deep‐subwavelength regime. We push forward the concept of the contrast function revival in the subwavelength imaging by introduction of the proper phase difference between coherent sources. To study this effect we develop a simplified theory of the wave propagation through a hyperbolic metamaterial and show that, in principle, two sources standing apart at any subwavelength distance can be distinguished. We suggest two feasible designs, the first of which employs the obliquely incident light, while the second one is based on a properly designed metasurface. The concept can be used in high‐contrast subwavelength microscopy.",
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Subwavelength Hyperlens Resolution With Perfect Contrast Function. / Novitsky, Andrey; Repän, Taavi; Zhukovsky, Sergei; Lavrinenko, Andrei.

In: Annalen der Physik, Vol. 530, No. 3, 1700300, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Subwavelength Hyperlens Resolution With Perfect Contrast Function

AU - Novitsky, Andrey

AU - Repän, Taavi

AU - Zhukovsky, Sergei

AU - Lavrinenko, Andrei

PY - 2018

Y1 - 2018

N2 - Recently it has been shown that plasmonic effects in hyperbolic metamaterials may facilitate overcoming the diffraction limit and enhance the contrast function of an image by filtering background radiation. Unfortunately, the contrast function of such a dark‐field hyperlens degrades in the deep‐subwavelength regime. We push forward the concept of the contrast function revival in the subwavelength imaging by introduction of the proper phase difference between coherent sources. To study this effect we develop a simplified theory of the wave propagation through a hyperbolic metamaterial and show that, in principle, two sources standing apart at any subwavelength distance can be distinguished. We suggest two feasible designs, the first of which employs the obliquely incident light, while the second one is based on a properly designed metasurface. The concept can be used in high‐contrast subwavelength microscopy.

AB - Recently it has been shown that plasmonic effects in hyperbolic metamaterials may facilitate overcoming the diffraction limit and enhance the contrast function of an image by filtering background radiation. Unfortunately, the contrast function of such a dark‐field hyperlens degrades in the deep‐subwavelength regime. We push forward the concept of the contrast function revival in the subwavelength imaging by introduction of the proper phase difference between coherent sources. To study this effect we develop a simplified theory of the wave propagation through a hyperbolic metamaterial and show that, in principle, two sources standing apart at any subwavelength distance can be distinguished. We suggest two feasible designs, the first of which employs the obliquely incident light, while the second one is based on a properly designed metasurface. The concept can be used in high‐contrast subwavelength microscopy.

KW - hyperlens

KW - metamaterials

KW - superresolution

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VL - 530

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