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May 2023 Vol. 21 No. 5

View from the Top

  • Hiroshi Tomiyasu, Senior Vice President, Head of Technology and Innovation General Headquarters, NTT DATA

Front-line Researchers

  • Masaya Notomi, Senior Distinguished Researcher, NTT Basic Research Laboratories and Project Leader of NTT Nanophotonics Center

Rising Researchers

  • Yasufumi Ogawa, Distinguished Researcher, NTT Network Innovation Center

Feature Articles: Plasmon Control Technology

  • Overview and Prospects for Research on Plasmons in Two-dimensional Semiconductor Systems
  • Electrical Control of Plasmon Reflectivity in Graphene
  • Ultrafast Optical-to-electrical Conversion Processes in Graphene
  • Theoretical Proposal for Edge Magnetoplasmon Crystal
  • Time-resolved Measurement of Ambipolar Plasmon Transport in Semiconductor Composite Quantum Wells

Regular Articles

  • Ultrafast and Low-power-consumption Membrane Lasers on Si with Integrated Optical Feedback

Global Standardization Activities

  • Report of the First ITU-T TSAG Meeting for the 2022–2024 Study Period

Special Report

  • 50th Anniversary of NTT Yokosuka R&D Center

External Awards