Advanced search

Filter By:

Journal Check one or more journals to show results from those journals only.

Choose more journals

Article type Check one or more article types to show results from those article types only.
Subject Check one or more subjects to show results from those subjects only.
Date Choose a date option to show results from those dates only.

Custom date range

Clear all filters
Sort by:
Showing 1–4 of 4 results
Advanced filters: Author: Yasutomo Ota Clear advanced filters

  • Alkylphosphonates are used as chargeneutral replacements for naturally-occurring phosphodiester backbones in nucleotides but the choice of alkyl moieties that can be attached to phosphorus atoms in these compounds is limited to methyl groups or primary/secondary alkyls. Here, the authors demonstrate the tertiary alkylation of the phosphorus atoms of phosphites bearing two 2’-deoxynuclosides using a carbocation generated via a light-driven radical-polar crossover mechanism

    • Kenji Ota
    • Kazunori Nagao
    • Hirohisa Ohmiya
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9

  • The room-temperature lasing of a single nanowire containing 50 quantum dots is demonstrated, paving the way towards ultrasmall lasers with extremely low power consumption for integrated photonic systems.

    • Jun Tatebayashi
    • Satoshi Kako
    • Yasuhiko Arakawa
    Research
    Nature Photonics
    Volume: 9, P: 501-505

  • Lithium niobate on insulator (LNOI) is emerging as a powerful photonic integration platform for synthetic dimension approaches that enable probing of higher-dimensional physical models within low-dimensional devices. The authors present a LNOI ring device, whose frequency modes represent lattice sites for versatile simulation of tight-binding models with up to three-dimensional connectivity.

    • Hiep X. Dinh
    • Armandas Balčytis
    • Thach G. Nguyen
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-9

  • For most lasing and photonic applications, it is essential to control the number of lasing modes that are present. In this work, an interface between two topologically distinct photonic crystals is used to ensure single-mode lasing with enhanced light-matter interactions due to a near-diffraction-limited mode volume.

    • Yasutomo Ota
    • Ryota Katsumi
    • Yasuhiko Arakawa
    ResearchOpen Access
    Communications Physics
    Volume: 1, P: 1-8