Akira Ito

Cryopreservation of cells, tissues and organs by nano-heating.

Researcher

Akira Ito

Outline

Successful cryopreservation of organs and tissues can eliminate shortage of transplant donors. Moreover, cryopreservation techniques for tissue and cell transplantation are essential for practical application of regenerative medicine. The aim of this study is to establish cryopreservation technology of biological tissues, which is based on spectroscopic understanding and controlling of heat generation of magnetic nanoparticles under alternating magnetic fields. The result of this research is expected to contribute to the health of the people as a novel nanotechnology.

Hajime Okajima

Molecular Selective Thermometry by Raman Temperature Imaging

Researcher

Hajime Okajima

Outline

For understanding non-thermally equilibrium systems, such as conducting devices, it is important to distinguish which molecular species are heated and where the heat is localized. Since Raman spectroscopy detects molecular vibrations, molecular selective in situ measurements of temperature are possible by using the spectroscopy. This research aims at developing a novel temperature imaging which can visualize localized heat at particular molecular species by focusing on thermal distribution temperatures of molecular vibrations, which is called “Raman temperatures”.

Naoki Ogawa

Dynamics of nonreciprocal quantum transport visualized via imaging spectroscopy

Researcher

Naoki Ogawa

Outline

In materials with broken inversion symmetry, nonreciprocal transport of photon, electron, magnon, phonon etc. can be expected. I am going to visualize spatiotemporal evolution of these particles/excitations in solids by using ultrafast/momentum-resolved optical spectroscopies, and try to unveil the directional flow of energy at non-equilibrium/non-diffusive limit. I aim at selective excitation and coherent control of such energy flow by exploring the materials with broken space-inversion and time-reversal symmetries.

Toshiki Sawada

Nanoscale thermodynamics-based development of innovative materials for energy transport using hierarchically assembled biomacromolecules

Researcher

Toshiki Sawada

Outline

In this study, development of innovative materials for energy transport based on engineering of biomacromolecules using properties unique to natural systems is focused. The essential factors for efficient energy transport of various biomacromolecular assemblies will be clarified by spectrally understanding the heat transport mechanisms. Furthermore, construction of innovative materials that have a capability to control an on/off switching of energy transport by utilization of reversibility of non-covalent bonds.

Takuma Shiga

Spectral thermal engineering in terms of particle and wave nature of phonons for designing thermal functionalized materials

Researcher

Takuma Shiga

Outline

In this work, utilizing particle and wave nature of phonons, I will realize a manipulation of spectral phonon transport at nanostructured interface, disordered and phononic materials. This work ultimately enables us to design and fabricate thermally functional materials/devices such as thermal switching, thermal diode, low-coherence-loss phononic crystal.

Yoshihiro Taguchi

Phonon Transport Imaging using Near-field Optics

Researcher

Yoshihiro Taguchi

Outline

A spectroscopic thermal sensing technique is essential for a thermal control of innovative devices. In this project, I propose a novel phonon transport imaging method by using the multi spectral near-field light, which can selectively excite the quasi-ballistic and diffusive phonon transport in the nano-devices. This will provide a fundamental understanding of the phonon energy transport in the phonic crystal with ultra-high spatiotemporal resolution beyond the diffraction limit of light.

Emi Minamitani

Ab-initio analysis of energy and momentum resolved electron-phonon coupling in layered materials

Researcher

Emi Minamitani

Outline

In this research, I will analyze the momentum and energy resolved electron-phonon coupling with high precision via ab-initio calculations. The electron-phonon coupling is a source of various thermal properties from Joule heating to thermoelectric effect. The purpose of this research is to find new guiding principal to control heat, and electron transport pass with less heat loss. Main target material is layered material which is a promising candidate of next generation devise material.

Tomohide Yabuki

Measurement and Control of Boiling Characteristic Spectra for Developing New Thermal Devices

Researcher

Tomohide Yabuki

Outline

This project develops technologies for precise prediction of boiling heat transfer and ultra high heat flux removal by high-resolution measurement and control of boiling heat transfer using a MEMS thermal sensor and micro- and nano-structures. Achievements of this project leads to a dramatic technological progress in the electronic cooling and the waste heat recovery.