Koji Ohta mostly deals with Diradical, Photochemistry, Singlet state, Two-photon absorption and Density functional theory. Koji Ohta regularly ties together related areas like Computational chemistry in his Diradical studies. His biological study spans a wide range of topics, including Ab initio, Molecule, Molecular orbital and Chemical bond.
His Photochemistry research incorporates themes from Acceptor, Nile red, Absorption, Acetonitrile and Absorption spectroscopy. The concepts of his Singlet state study are interwoven with issues in Hyperpolarizability, Molecular physics, Nonlinear optics and Open shell. His work in Two-photon absorption tackles topics such as Dimer which are related to areas like Aromaticity, Ground state, Supramolecular chemistry, Absorption cross section and Imidazole.
His scientific interests lie mostly in Photochemistry, Diradical, Singlet state, Two-photon absorption and Density functional theory. His studies deal with areas such as Crystallography, Dimer, Molecule and Absorption spectroscopy as well as Photochemistry. The various areas that he examines in his Diradical study include Molecular physics, Computational chemistry, Open shell and Molecular orbital.
His Singlet state research is multidisciplinary, incorporating perspectives in Configuration interaction, Ab initio, Coupled cluster, Hyperpolarizability and Solvent effects. Koji Ohta interconnects Absorption, Conjugated system, Chromophore and Spectral line in the investigation of issues within Two-photon absorption. His Density functional theory research also works with subjects such as
His main research concerns Diradical, Singlet state, Photochemistry, Density functional theory and Two-photon absorption. His Diradical research is multidisciplinary, incorporating elements of Chemical physics, Polarizability, Open shell, Ground state and Molecular orbital. He has researched Singlet state in several fields, including Valence, Molecular physics, Configuration interaction, Hyperpolarizability and Computational chemistry.
His studies deal with areas such as Acceptor, Crystallography, Dimer, Molecule and Solvent effects as well as Photochemistry. His Density functional theory research incorporates themes from Triplet state, Condensed matter physics and Graphene. His work deals with themes such as Conjugated system, Cationic polymerization and Chromophore, which intersect with Two-photon absorption.
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Optically active poly(triphenylmethyl methacrylate) with one-handed helical conformation
Yoshio Okamoto;Koichi Suzuki;Koji Ohta;Koichi Hatada.
Journal of the American Chemical Society (1979)
Spectroscopic studies of nile red in organic solvents and polymers
Ashim Kumar Dutta;Kenji Kamada;Koji Ohta.
Journal of Photochemistry and Photobiology A-chemistry (1996)
Second Hyperpolarizability (γ) of Singlet Diradical System: Dependence of γ on the Diradical Character
Masayoshi Nakano;Ryohei Kishi;Tomoshige Nitta;Takashi Kubo.
Journal of Physical Chemistry A (2005)
Strong two-photon absorption of singlet diradical hydrocarbons.
Kenji Kamada;Koji Ohta;Takashi Kubo;Akihiro Shimizu.
Angewandte Chemie (2007)
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.
Physical Review Letters (2007)
Strong two-photon absorption of self-assembled butadiyne-linked bisporphyrin
Kazuya Ogawa;Atsushi Ohashi;Yoshiaki Kobuke;Kenji Kamada.
Journal of the American Chemical Society (2003)
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.
Chemical Physics Letters (2003)
Singlet Diradical Character from Experiment
Kenji Kamada;Koji Ohta;Akihiro Shimizu;Takashi Kubo.
Journal of Physical Chemistry Letters (2010)
Second hyperpolarizabilities of polycyclic aromatic hydrocarbons involving phenalenyl radical units
Masayoshi Nakano;Takashi Kubo;Kenji Kamada;Koji Ohta.
Chemical Physics Letters (2006)
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.
Physical Chemistry Chemical Physics (2003)
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