Photonic metasurface made of array of lens-like SiGe Mie resonators formed on (100) Si substrate via dewetting

Vladimir Poborchii, Alexander Shklyaev, Leonid Bolotov, Noriyuki Uchida, Tetsuya Tada, Zhandos N. Utegulov

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Metasurfaces consisting of arrays of high-index Mie resonators concentrating/redirecting light are important for integrated optics, photodetectors, and solar cells. Herein, we report the optical properties of low-Ge-content SiGe lens-like Mie resonator island arrays fabricated via dewetting during Ge deposition on a Si(100) surface at approximately 900 °C. We observe enhancement of the Si interaction with light owing to the efficient island-induced light concentration in the submicron-depth Si layer, which is mediated by both near-field Mie resonance leaking into the substrate and far-field light focusing. Such metasurfaces can improve the Si photodetector and solar-cell performance.

Original languageEnglish
Article number125501
JournalApplied Physics Express
Volume10
Issue number12
DOIs
Publication statusPublished - Dec 1 2017

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Photonics
drying
Resonators
Lenses
resonators
lenses
photonics
Substrates
Photodetectors
photometers
Solar cells
solar cells
Integrated optics
integrated optics
concentrating
cells
far fields
near fields
Optical properties
optical properties

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Photonic metasurface made of array of lens-like SiGe Mie resonators formed on (100) Si substrate via dewetting. / Poborchii, Vladimir; Shklyaev, Alexander; Bolotov, Leonid; Uchida, Noriyuki; Tada, Tetsuya; Utegulov, Zhandos N.

In: Applied Physics Express, Vol. 10, No. 12, 125501, 01.12.2017.

Research output: Contribution to journalArticle

Poborchii, Vladimir ; Shklyaev, Alexander ; Bolotov, Leonid ; Uchida, Noriyuki ; Tada, Tetsuya ; Utegulov, Zhandos N. / Photonic metasurface made of array of lens-like SiGe Mie resonators formed on (100) Si substrate via dewetting. In: Applied Physics Express. 2017 ; Vol. 10, No. 12.
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