Ritsumeikan University Researcher Database
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（Last updated : 2023-05-11 14:25:02）
OISHI EIICHI
Department / Course
Research Organization of Science and Technology
Title / Position
Senior Researcher
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Academic background
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Subject of research
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research
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researchmap Researcher code
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Academic background
1.
2020/04～2023/03
Doctorial Course │ Major in Advanced Mathematics and Physics │ Graduate School, Division of Science and Engineering │ Ritsumeikan University │ Completed Doctor of Science
2.
2018/04～2020/03
Master Course │ Major in Advanced Mathematics and Physics │ Graduate School, Division of Science and Engineering │ Ritsumeikan University │ Completed Master of Science
3.
2014/04～2018/03
Department of Physical Sciences │ Faculty of Science and Engineering │ Ritsumeikan University │ Graduated Bachelor of Science
Business career
1.
2023/04 ～
Senior Researcher │ Research Organization of Science and Technology │ Ritsumeikan University
Research activities
1.
2022/01 ～
The Dielectric Society of Japan
2.
2016/12 ～
The Physical Society of Japan
Subject of research
1.
Observation and coherent excitation of chiral phonon by circularly polarized light and light vortex
Research summary
Chiral phonon investigated by light with angular momentum
Phonons, which are quasi-particle of lattice vibrations, are responsible for various physical properties such as specific heat, thermal expansion, and thermal conductivity. Until now, it has been believed that phonons only possess energy and crystal momentum. However, in recent years, it has become apparent that phonons can also have angular momentum. We aim to observe and coherently excite chiral phonons, which are phonons with angular momentum that can propagate through crystals, using circularly polarized light or optical vortices.
Present specialized field
Applied physical properties, Semiconductors, optical properties of condensed matter and atomic physics, Magnetism, superconductivity and strongly correlated systems (Keyword：Light scattering, Raman scattering, Brillouin scattering, Chirality, Phonon, Magnon)
researchmap Researcher code
R000052251