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Chemistry

D-Index
53
Citations
9684
World Ranking
13108
National Ranking
990

Overview

Koji Ohta is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. The research work of this scientist spans multiple disciplines, primarily focusing on engineering and medicine, with notable contributions in surgery, electrical and electronic engineering, biomedical engineering, and polymers and plastics.

The main research topics addressed by Ohta encompass spinal fractures and fixation techniques, hip and femur fractures, medical imaging and analysis, advancements in battery materials, semiconductor materials and devices, and transition metal oxide nanomaterials.

Ohta's recent publications include the following:

  • Evaluating the effect of early balloon kyphoplasty on adjacent vertebral fracture risk in osteoporotic vertebral fracture management: a retrospective study (2025, Asian Spine Journal)
  • Fabrication and Characterization of LiMn2O4 Thin Films for Flexible Thin Film Lithium-ion Batteries: Effect of thermal Annealing (2021, International Journal of Engineering and Applied Sciences (IJEAS))

The scientist has collaborated frequently with several co-authors, including:

  • Masatoshi Yamamoto
  • Daisuke Hirano
  • M Noguchi
  • Shuhei Ayukawa
  • Keigo Shirasaki

Ohta's work has been published in venues such as the Asian Spine Journal and the International Journal of Engineering and Applied Sciences (IJEAS), reflecting the interdisciplinary nature of their research combining clinical medical studies with engineering investigations.

Best Publications

  • Optically active poly(triphenylmethyl methacrylate) with one-handed helical conformation

    Yoshio Okamoto;Koichi Suzuki;Koji Ohta;Koichi Hatada

  • Spectroscopic studies of nile red in organic solvents and polymers

    Ashim Kumar Dutta;Kenji Kamada;Koji Ohta

  • Second Hyperpolarizability (γ) of Singlet Diradical System: Dependence of γ on the Diradical Character

    Masayoshi Nakano;Ryohei Kishi;Tomoshige Nitta;Takashi Kubo

  • Comparison Among Several Numerical Integration Methods for Kramers-Kronig Transformation

    Koji Ohta;Hatsuo Ishida

  • Strong two-photon absorption of singlet diradical hydrocarbons.

    Kenji Kamada;Koji Ohta;Takashi Kubo;Akihiro Shimizu

  • Relationship between third-order nonlinear optical properties and magnetic interactions in open-shell systems: a new paradigm for nonlinear optics.

    Masayoshi Nakano;Ryohei Kishi;Suguru Ohta;Hideaki Takahashi

  • Strong two-photon absorption of self-assembled butadiyne-linked bisporphyrin

    Kazuya Ogawa;Atsushi Ohashi;Yoshiaki Kobuke;Kenji Kamada

  • Two-photon absorption properties of symmetric substituted diacetylene: drastic enhancement of the cross section near the one-photon absorption peak

    Kenji Kamada;Koji Ohta;Yoichiro Iwase;Koichi Kondo

  • Singlet Diradical Character from Experiment

    Kenji Kamada;Koji Ohta;Akihiro Shimizu;Takashi Kubo

  • Matrix formalism for calculation of electric field intensity of light in stratified multilayered films

    Koji Ohta;Hatsuo Ishida

  • Second hyperpolarizabilities of polycyclic aromatic hydrocarbons involving phenalenyl radical units

    Masayoshi Nakano;Takashi Kubo;Kenji Kamada;Koji Ohta

  • A systematic femtosecond study on the two-photon absorbing D-π-A molecules–π-bridge nitrogen insertion and strength of the donor and acceptor groups

    Liudmil Antonov;Kenji Kamada;Koji Ohta;Fadhil S. Kamounah

  • Molecular Design for Organic Nonlinear Optics: Polarizability and Hyperpolarizabilities of Furan Homologues Investigated by Ab Initio Molecular Orbital Method†

    Kenji Kamada;Minoru Ueda;Hidemi Nagao;Keiko Tawa

  • Impact of diradical character on two-photon absorption: bis(acridine) dimers synthesized from an allenic precursor.

    Kenji Kamada;Shin-ichi Fuku-en;Shu Minamide;Shu Minamide;Koji Ohta

  • Two-photon-absorption-induced accumulated thermal effect on femtosecond Z-scan experiments studied with time-resolved thermal-lens spectrometry and its simulation

    Kenji Kamada;Kinu Matsunaga;Akihiro Yoshino;Koji Ohta

  • Synthesis and photophysical properties of new two-photon absorption chromophores containing a diacetylene moiety as the central π-bridge

    Yoichiro Iwase;Kenji Kamada;Koji Ohta;Koichi Kondo

  • Two-photon absorption properties of self-assemblies of butadiyne-linked bis(imidazolylporphyrin).

    Kazuya Ogawa;Atsushi Ohashi;Yoshiaki Kobuke;Kenji Kamada

  • Giant Enhancement of the Second Hyperpolarizabilities of Open-Shell Singlet Polyaromatic Diphenalenyl Diradicaloids by an External Electric Field and Donor–Acceptor Substitution

    Masayoshi Nakano;Takuya Minami;Kyohei Yoneda;Shabbir Muhammad

  • Erratum to: (Hyper)polarizability density analysis for open-shell molecular systems based on natural orbitals and occupation numbers

    Masayoshi Nakano;Hitoshi Fukui;Takuya Minami;Kyohei Yoneda

  • Second Hyperpolarizabilities (γ) of Bisimidazole and Bistriazole Benzenes: Diradical Character, Charged State, and Spin State Dependences

    Masayoshi Nakano;Ryohei Kishi;Nozomi Nakagawa;Suguru Ohta

  • (Hyper)polarizability density analysis for open-shell molecular systems based on natural orbitals and occupation numbers

    Unknown

Frequent Co-Authors

Kenji Kamada
Kenji Kamada National Institute of Advanced Industrial Science and Technology
Masayoshi Nakano
Masayoshi Nakano Osaka University
Takashi Kubo
Takashi Kubo Osaka University
Benoît Champagne
Benoît Champagne University of Namur
Kizashi Yamaguchi
Kizashi Yamaguchi Osaka University
Kazuhiro Nakasuji
Kazuhiro Nakasuji Osaka University
Yasushi Morita
Yasushi Morita Aichi Institute of Technology
Yoshio Okamoto
Yoshio Okamoto Nagoya University
Akihiro Shimizu
Akihiro Shimizu Osaka University
Yoshiaki Kobuke
Yoshiaki Kobuke Nara Institute of Science and Technology

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