Faculty Members / Research Areas

Advanced nuclear fusion plasma

We are conducting experimental research on high -performance plasma confinements aimed at realizing an economic fusion core. We adopt a unique high -beta method that actively applies the "connecting magnetic line" phenomenon that is universally observed in astronomical plasma.

Quantum Nanophotonics and Topological Photonics

Aiming at the realization of novel photonic devices and quantum information devices, we are researching optical science in photonic nanostructures, developing unique technology for controlling light and photons based on the concept of topology and researching diamond nanophotonics.

Superconducting technology for next-generation energy equipment

We are conducting research on electrical energy equipment and systems with excellent characteristics, utilizing advanced materials such as superconductors and high-performance permanent magnets, with the aim of efficient use of electric energy and the realization of advanced electromagnetic applied systems.

Creation of novel next-generation spin devices using ultra-high quality semiconductor/oxide quantum nano-heterostructures

Our group is developping atomically controlled high-quality single-crystal quantum heterostructures consisting of various material systems, mainly oxides and semiconductors. We combine the quantum properties of electrons with spin degrees of freedom to control spin current flow with high efficiency. We aim to pioneer novel physics and realize highly efficient low-energy consumption devices that will lead to next-generation green innovation.

Plasma application technology - medicine, surface engineering to aerospace engineering applications

We are engaged in the development of plasma-based medical, surface, energy, and aerospace engineering applications, as well as fundamental research on plasma spectroscopy measurements and simulations.

Frontier of High voltage / High Current Technology

The electric power system is undergoing a major transformation in response to the need to build a carbon-neutral society. In addition to the upgrade of the conventional AC grid, there is an urgent need to develop fundamental technologies for the DC grid. With the application of social infrastructure construction in mind, we are developing new sensors to understand physical properties and discharge physics, and elucidate discharge phenomena, current interruption phenomena, and electrical conduction phenomena in solids. The laboratory is directed in collaboration with Associate Professor Masahiro Sato and Project Professor Takashi Fujii.

Materials / devices / systems to realize carbon neutrality.

Our interests spread from basic research on renewable energy to social implementation. The most exciting frontiers exist at the interfaces such as the ones between electricity and chemistry, research and society.

新材料・機能集積で切り拓く超低消費電力CMOS半導体デバイス

半導体デバイス研究の最先端で、今世界中でホットに進められている研究にすぐに飛び込んで見たい方、これまで学んできた物性理論や半導体の知識が実際どのように役立つのか実感して見たい方など、意欲的な皆さんの参加を期待します

Nanometer world explored by nanoprobes - "Observe" what are invisible to our eyes -

Our laboratory aims to establish new methods for evaluating physical properties in the nanometer range by making full use of the nanoprobe technology that has high spatial resolution at nanometer scale and to contribute to the exploration of new devices through understanding of those physical properties.

Small Chip Intelligently Managing Large Power

To achieve a carbon-free world by 2050, we are conducting research on integrated power management, in which a small IC chip can intelligently handle large amounts of power, with the goal of making power electronics systems more energy-efficient.

New electronic materials / devices, spintronics, quantum science and technology

We are conducting research on new materials, hetero structures, nano structures, and devices, aiming to create new electronics using electronic spin functions and quantum phenomena. We are working on a wide range of themes, from basic research based on intellectual curiosity to research with an engineering application.

MEMS/NEMS, Micro/Nano mechatronics

MEMS (microelectromechanical systems) technology is a composite field of electrical engineering, mechanics, chemistry, material science, fluidics, optics and else. Using semiconductor microfabrication technology, we develop various MEMS applications such as optic communication, image display, medical diagnosis, IoT sensors, and energy harvesters.

Photonic integrated circuits and renewable energy system based on semiconductors

In our laboratory, we fabricate photonics integrated circuits and solar cells by ourselves from scratch. Facing the fabricated devices and carefully examining their characteristics, you will realize that they are quite different from virtual devices modeled on a computer. Dialogue with real devices is one of the most important research process for us.

Integrated quantum electronics and Thermoelectric energy harvesting

We are promoting physics exploration in semiconductors and two -dimensional materials and developing next -generation thermal flow control technology. We are studying new basic physics unique to a hybrid state of multiple quantums, which cannot be achieved with a single quantum, and is studying devices that enable quantum broadcasts. Applied research provides environmental thermal power generation and energy -saving devices, basic understanding of the physics of phonon and thermal control, which supports its technology development, and exploration of new physics.

Create electricity using electricity -control of devices for smart grid-

We apply new technologies such as power electronics, energy storage technology, and ICT to the electric power field, and we are conducting research that contributes to the construction of better electric energy systems. We are conducting research close to hardware, such as actually going to remote islands and experiments.

テラヘルツナノサイエンスと極限デバイス物理

平川研究室では、単一分子や量子ドット、NEMSなどナノ構造の物理を明らかにし、それに基づく新しい動作原理のデバイスや超高感度検出技術などを考える研究を行っています。物理にロマンを感じる人、もの作りが好きな人、歓迎します。

Semiconductor silicon nano device aimed at large -scale integration

Hiramoto/Kobayashi Laboratory is pursuing ultimate integrated nanoelectronics by device innovation to solve the world's issues.

Research on energy systems analysis and carbon-neutral societies

Matsuhashi Lab has conducted researches on energy systems and measures to mitigate global warming, and various researches related to energy policies. Currently, we are developing models of power systems that takes into account the large scale introduction of renewable energies, and the construction of novel energy economic models in consideration of bounded rationality, and integrating them.

革新的レーザ計測技術の開発と高電圧研究への適用

直流グリッドが共存した次世代電力システムの実現に向け、光を用いた電界計測やレーザプラズマを用いた設備診断技術など、レーザの特長を生かした様々な応用研究や、レーザ特有の非線形現象の解明を行っています。

Toward Next Generation Mechatronics and Control

My team and I aim to achieve control performance that pushes the physical limits through innovations in control theory driven by the requirements of cutting-edge industrial and scientific applications. We pursue both performance and robustness through integrated optimization of the entire mechatronic system and controller design, including system identification and learning control. Our application includes precision mechatronics, electrical motors, power electronics, plasma, thermal systems, and pneumatic systems. Through domestic and international industry-academia collaboration, we propose and implement control theory and control system design methods for world-class control targets such as semiconductor manufacturing equipment, railroad systems, and power system equipments to support a sustainable and prosperous society.

Startled Computers: Space makes semiconductors surprised

In Sci-Fi movies, androids are often depicted as having cold and emotionless character. We may have such impression because most of computers rely on digital processing in which everything is flatly divided into "1" or "0", but—would you believe it?—they are easily surprised and often get upset. It is caused by a strike of tiny invisible particles, fragments of exploding stars a.k.a cosmic rays, but the shock is significant. The shock makes a computer chip surprised and lose its memory, control, and even its fundamental ability to boot up. So, what will you do next?

Phyisics and smart AI-aided electrical and electronic materials design

To achieve carbon neutrality in a materials limited world, we are designing new electrical and electronic materials with the aid of the laws of nature and artificial intelligence. By understanding the underlying phyisics of high electric field phenomena, we propose novel approaches for tailoring the material properties.

Electronics to learn "bio" to "learn and bio"

We aim to create new electronics inspired by bio-systems, with the keyword of "Yuragi (fluctuation)" which is unique to life-systems. We fabricate artificial lattices composed of magnetic and ferroelectric phases, and conduct basic researches on the relation between their physical properties caused by "fluctuations" and the flexiblity/plasticity of bio-systems.

Semiconductor integrated photonics

Our research focuses on integrated photonics, which invoves using a compact semiconductor chip of a few millimeters in size to manipulate the state of light. By leveraging the unique properties of "light", such as ultrabroad bandwidth, parallelism, and linearity, and offloading the intelligent digital computations to "electronic" circuits, we aim to create innovative photonic devices that can be applied to a wide range of fields, including next-generation optical communications, imaging, computing, and more.

Advanced electronic devices using semiconductors and functional materials

Our research focuses on the development of functional electronic devices based on semiconductor and ferroelectric materials. We explore various research areas such as material engineering, device physics, and new-concept computing by leveraging the unique properties of these materials and devices.

Organic electronics for flexible sensor application

Our group develop the soft electronics by organic materials. Our focus is Device Physics, Development of new process, Application.

Realization of semiconductor materials and devices that integrate "magnetism", "superconductivity" and "topology".

Our focus is to integrate "magnetism", "superconductivity" and "topology" to all-in-one semiconductor platforms, using nanoscale semiconductor/ferromagnet/superconductor hybrid structures. These integrated material platforms would pave new ways to fundamental technologies for ultra-low power-consumption electronics and fault-tolerant quantum information.

第一原理計算は固体中に膨大に存在している電子の状態を計算することで、物質全体の物性を予測できる手法です。研究の現場では物性発現メカニズムの解明や新物質の探索に役立っています。本研究室では第一原理計算を活用した高機能なスピントロニクス材料の探索や、探索の精度・効率をより良くするために計算手法の開発を行っています。

Novel functional electronic devices and their applications to AI electronics

We are conducting research toward thechnological innovation in highly-efficient AI computing hardware. The research is promoted by both wheels: one is hardware research that creates novel functional electronic devices, and another is software research that includes proposal of physics-oriented computing system as well as information science on methodology and principle.

Computational fabrication and interaction

By designing the materials and structures of things by calculation, and manufacturing by digital fabrication, we realize a new real world interaction that cannot be realized by conventional methods and use.