DataVXAdvanced Optical MaterialsPaper
journal article·2017-10Open access

A Broadband Optical Diode for Linearly Polarized Light Using Symmetry‐Breaking Metamaterials

Minkyung Kim, Kan Yao, Gwanho Yoon, Inki Kim, Yongmin Liu, Junsuk Rho

Advanced Optical Materials· Volume 5· Issue 19
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Source abstract

Abstract

As an analog of electrical diodes, optical diodes enable asymmetric transmission or one‐way transmission of light. Here, a thin bilayer metamaterial supporting asymmetric transmission is experimentally demonstrated for linearly polarized light but not for circularly polarized light over a broad bandwidth up to 50 terahertz in the near‐infrared region. A simple and intuitive working principle based on the symmetry inherent in the metamaterial design is provided, along with full‐wave simulations that agree well with the experimental results. It is also proved that the design is extremely insensitive to spatial misalignment, which may occur during the nanofabrication process. These prominent features promise a wide range of applications, such as ultrafast optical computing, information processing, and suppressing undesired interactions of light in integrated micro‐ and nanodevices.
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Research context

Nanomaterials

OpenAlex topics: Metamaterials and Metasurfaces Applications · Plasmonic and Surface Plasmon Research · Photonic Crystals and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Mechanical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea

Department of Electrical and Computer Engineering Northeastern University Boston MA 02115 USA

Department of Mechanical and Industrial Engineering Northeastern University Boston MA 02115 USA

Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea

National Institute of Nanomaterials Technology (NINT) Pohang 37673 Republic of Korea

Funding

National Research Foundation of Korea · Ministry of Science, ICT and Future Planning · Office of Naval Research

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