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

doi:10.1088/1361-6528/aabf53

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 journal › Article › peer-review

16 Scopus citations

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 language	English (US)
Article number	285202
Journal	Nanotechnology
Volume	29
Issue number	28
DOIs	https://doi.org/10.1088/1361-6528/aabf53
State	Published - May 14 2018

Funding

This material is based upon work supported by the Materials Research Science and Engineering Center (NSF-MRSEC) (DMR-1121262) of Northwestern University. KA also acknowledges the support from the Office of Naval Research Young Investigator Program (ONR-YIP) Award. This work utilized the Northwestern University Micro/Nano Fabrication Facility (NUFAB) and EPIC facility, which have received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. Also, use of Center for Nanoscale Materials, an Office of Science user facility, was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.

Keywords

2D materials
anisotropy
black phosphorus
localized surface plasmon resonances
plasmonics

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Bioengineering
General Chemistry
General Materials Science
Electrical and Electronic Engineering

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10.1088/1361-6528/aabf53

Cite this

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title = "Extrinsic polarization-controlled optical anisotropy in plasmon-black phosphorus coupled system",

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.",

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AU - Wells, Spencer A.

AU - Butun, Serkan

AU - Palacios, Edgar

AU - Hersam, Mark C.

AU - Aydin, Koray

PY - 2018/5/14

Y1 - 2018/5/14

N2 - 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.

AB - 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.

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

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Keywords

ASJC Scopus subject areas

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