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 semiconductor devices, such as GaN, to organic materials, such as receptor proteins. 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 U.K. 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
                    Hiroshi Yamaguchi
 We are studying solid-state quantum systems and devices, 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 nanodevices, 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 into fundamental issues.
 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/optics, 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 on optical communications and optical signal processing, and seeks fundamental scientific progresses.
 The three groups in our laboratory are working for the quantum state control of light, the quantum state control of materials by light, the analysis of high speed phenomena using very short pulse laser, the optical properties of nano-structure semiconductor like quantum dot, and very small optical integrated circuit using two-dimensional photonic crystals.
 In this year, we realized improvements of quantum cryptography and quantum entangled photon pair generation, high-Q (10,000) compound semiconductor photonic crystal resonator, and  measurements of photon decay time and pulse delay time in ultra-high Q-value photonic crystal resonator.


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