Visualizing Optical Phase Anisotropy in Black Phosphorus

Shoufeng Lan, Sean Rodrigues, Lei Kang, Wenshan Cai

    Research output: Contribution to journalArticle

    36 Citations (Scopus)

    Abstract

    Layered black phosphorus has triggered enormous interest since its recent emergence. Compared to most other two-dimensional materials, black phosphorus features a moderate band gap and pronounced in-plane anisotropy, which stems from the unique atomic-puckering crystal structure. The future potential of black phosphorus in optoelectronics demands a deeper understanding of its unique anisotropic behavior. In particular, the phase information on light when interacting with the material is imperative for many applications in the optical regime. In this work we have comprehensively studied a wide range of optical anisotropic properties of black phosphorus, including the Raman scattering, extinction spectra, and phase retardance by utilizing conventional spectral measurements and a uniquely developed interferometric spectroscopy and imaging technique. The phase retardance of light passed through black phosphorus is exploited in conjunction with polarization interferometric techniques to demonstrate an optical contrast an order of magnitude higher than a purely polarization-based measurement could offer.

    Original languageEnglish (US)
    Pages (from-to)1176-1181
    Number of pages6
    JournalACS Photonics
    Volume3
    Issue number7
    DOIs
    StatePublished - Jul 20 2016

    Fingerprint

    Anisotropy
    Phosphorus
    phosphorus
    anisotropy
    Polarization
    Crystal atomic structure
    Light
    Light extinction
    Raman Spectrum Analysis
    polarization
    stems
    imaging techniques
    Optoelectronic devices
    Raman scattering
    Spectrum Analysis
    extinction
    Energy gap
    Spectroscopy
    Raman spectra
    Imaging techniques

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Biotechnology
    • Atomic and Molecular Physics, and Optics
    • Electrical and Electronic Engineering

    Cite this

    Lan, Shoufeng ; Rodrigues, Sean ; Kang, Lei ; Cai, Wenshan. / Visualizing Optical Phase Anisotropy in Black Phosphorus. In: ACS Photonics. 2016 ; Vol. 3, No. 7. pp. 1176-1181.
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    Visualizing Optical Phase Anisotropy in Black Phosphorus. / Lan, Shoufeng; Rodrigues, Sean; Kang, Lei; Cai, Wenshan.

    In: ACS Photonics, Vol. 3, No. 7, 20.07.2016, p. 1176-1181.

    Research output: Contribution to journalArticle

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