Overview of Research in Laboratories

Material Science Laboratory                      Keiichi Torimitsu
The Materials Science Laboratory (MSL) aims at producing new functional materials and designing of advanced device based on novel materials and biological function. Controlling the configuration and coupling of atoms and molecules is our approach to accomplish these goals. Bio-nano research is set as our principle research in this laboratory.
We have three research groups covering from inorganic materials, such as semiconductors, to organic materials, such as neurotransmitters. The characteristic feature of MSL is the effective sharing of the unique nanofabrication and measurement techniques of each group. This enables fusion of research fields and techniques, which leads to innovative material research for the IT society.
We set up European laboratory in UK for bio-nano research, our principal research, in last year and strengthen our research activities. We promote collaborations with international organizations to develop a firm basis of basic science.

Physical Science Laboratory
                    Yoshiro Hirayama
We are studying solid-state quantum systems and nanodevices, which will have revolutionary impact on communication and information technologies in the 21st century. In particular, we are making firm and steady progress in the pursuit for solid-state qubits, and related physics and technology for future quantum information processing. We maintain an open-door policy and engage in collaborations with many outside organizations to enhance our basic research.
The five groups in our laboratory are working in the following areas: quantum coherent control of semiconductor and superconductor systems, carrier interactions in semiconductor hetero- and nanostructures, spintronics manipulating both electron and nuclear spins, precise and dynamical control of single electrons, nanodevices operating at ultimately low power consumption, atom traps, and novel nanomechanics based on compound semiconductors. These studies are supported by cutting-edge nanolithography techniques, well-controlled nanofabrication processes, high-quality crystal growth, and theoretical studies including first-principle calculations.

Optical Science Laboratory                        Yasuhiro Tokura
This laboratory aims the development of core-technologies that will innovate in optical communications and optical signal processing, and also seeks fundamental scientific progress.
The three groups in our laboratory are working for the quantum state control of light, the quantum state control of materials using light, the analysis of high speed phenomena using very short pulse laser, the optical properties of semiconductor nano-structures, and very small optical integrated circuit realized with two-dimensional photonic crystals.
This year, we made great strides in the speed of quantum cryptography, generation of quantum entangled photon pairs, absolute control of carrier envelope phase, time-resolved absorption spectrum with wide-band x-ray pulse, and realizing very low-loss wave-guide and very high Q-value point-defect resonators.


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