Hiroshi Okamoto & Noriaki Kida Group
Applied Physics [Quantum condensed-matter science]
Set high goals and do your researches
to achieve your own dream.
Our research is to clarify and control electronic properties of condensed matter by using various kinds of laser lights with different frequencies and temporal widths. By utlizing unique features of correlated electron and/or low dimensional electron systems in transition metal compounds and organic molecular materials, we expect to achieve the final goal of making next-generation optical devices, which show the higher peformance than those based upon convential semiconductors.
In just the past thirty years, the optical technology has been extensively improved. Thirty years ago, we did not imagine that we could detect directly dynamics of electrons, spins, atoms and molecules in solids, but now we can do that by using ultrashort laser pulses. We hope that students set high goals and make researches to achieve their dreams. In our laboratoy, a lot of students have thus far made fascinating discoveries. We believe that all the new students will be able to experience their own discoveries, each of which is the world’s first one.
Professor Hiroshi Okamoto
- 1983 Graduated, Faculty of Engineering, Univ. of Tokyo
- 1988 Doctor of Engineering, Univ. of Tokyo
- 1988 Research Associate, Institute for Molecular Science
- 1992 Lecturer, RISM, Tohoku University
- 1995 Associate Professor, RISM, Tohoku University
- 1998 Associate Professor, Faculty of Engineering, Univ. of Tokyo
- 1999 Associate Professor, Faculty of Frontier Sciences, Univ. of Tokyo
- 2005 Professor, Faculty of Frontier Sciences, Univ. of Tokyo
Associate Professor Noriaki Kida
- 2002 Doctor of Engineering, Osaka Univ.
- 2002 PostDoc Researcher, Research Center for Superconductor Photonics, Osaka Univ.
- 2003 Researcher, ERATO Tokura Spin Superstructure Project, JST
- 2007 Researcher, ERATO Tokura Multiferroics Project, JST
- 2010 Associate Professor, Faculty of Frontier Sciences, Univ. of Tokyo
Introduction of the study
In correlated electron systems as well as low-dimensional electron systems, there are unique possibilities for the emergence of new optical functionalities, which would be beyond the properties of conventional semiconductors. In our laboratory, we employ a variety of ultrafast laser spectroscopies covering a range from the visible region to the terahertz region on transition metal oxides, organic molecular materials, polymers, and nanotubes. By those laser spectroscopies, we explore new optical functionalities originating from strong electron correlations and/or low dimensionalities, and aim to clarify mechanisms of observed phenomena and design new materials. Our main themes are as follows.
- Explorations of ultrafast photoinduced insulator-metal transition phenomena
- Realizations of ultrafast controls of magnetisms, dielectrics, and structures by lights and terahertz waves
- Explorations of gigantic third-order nonlinear optical responses and designs of ultrafast switching devices
- Developments of laser spectroscopy systems with high time-resolutions
- Developments of spatial- and time-resolved terahertz spectroscopy systems
Message from a senior
Professors Okamoto and Kida are great teachers. They are always thinking about students, propose a very interesting theme to each student, and suggest the interpretations of our experimental data. The purpose of my study is to control physical properties of solids by light. Optical science and technology should become important more and more in future. I am very excited when I imagine that my research will contribute to our future life. The members of our laboratory are friendly with each other. If there are some problems to be solved, we discuss together. Apart from researches, we are enjoying our student life together.