Extrinsic polarization-controlled optical anisotropy in plasmon-black phosphorus coupled system

Zizhuo Liu, Spencer A. Wells, Serkan Butun, Edgar Palacios, Mark C Hersam, Koray Aydin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Two-dimensional black phosphorus (BP) has drawn extensive research interest due to its promising anisotropic photonic and electronic properties. Here, we study anisotropic optical absorption and photoresponse of exfoliated BP flakes at visible frequencies. We enhance this intrinsic optical anisotropy in BP flakes by coupling plasmonic rectangular nanopatch arrays that support localized surface plasmon resonances. In particular, by combining extrinsic anisotropic plasmonic nanostructures lithographically aligned with intrinsically anisotropic BP flakes, we demonstrate for the first time a combined anisotropic plasmonic-semiconductor coupling that provides significant control over the polarization-dependent optical properties of the plasmon-BP hybrid material system, enhancing polarization-sensitive responses to a larger degree. This hybrid material system not only unveils the plasmon-enhanced mechanisms in BP, but also provides novel controllable functionalities in optoelectronic device applications involving polarization-sensitive optical and electrical responses.

Original languageEnglish
Article number285202
JournalNanotechnology
Volume29
Issue number28
DOIs
Publication statusPublished - May 14 2018

Fingerprint

Optical anisotropy
Phosphorus
Polarization
Hybrid materials
Surface plasmon resonance
Electronic properties
Optoelectronic devices
Photonics
Light absorption
Nanostructures
Optical properties
Semiconductor materials

Keywords

  • 2D materials
  • anisotropy
  • black phosphorus
  • localized surface plasmon resonances
  • plasmonics

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Extrinsic polarization-controlled optical anisotropy in plasmon-black phosphorus coupled system. / Liu, Zizhuo; Wells, Spencer A.; Butun, Serkan; Palacios, Edgar; Hersam, Mark C; Aydin, Koray.

In: Nanotechnology, Vol. 29, No. 28, 285202, 14.05.2018.

Research output: Contribution to journalArticle

Liu, Zizhuo ; Wells, Spencer A. ; Butun, Serkan ; Palacios, Edgar ; Hersam, Mark C ; Aydin, Koray. / Extrinsic polarization-controlled optical anisotropy in plasmon-black phosphorus coupled system. In: Nanotechnology. 2018 ; Vol. 29, No. 28.
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