Observation of physical phenomena that no one has yet seen, new discoveries, and new technologies. We aim to be a laboratory where the enjoyment of pursuing new things gives birth to values and leads to people, knowledge, and technology that are useful to society. We are pioneering “phonon engineering,” a next-generation semiconductor thermal management technology made possible by semiconductor nanostructures based on deep physical understanding and design. Phonons are heat carriers, and advanced control of their transport will lead to applications such as thermal management in semiconductor devices, quantum communication networks, and thermoelectric energy harvesting. We hope that our physical exploration based on intellectual curiosity and the development of new technologies aimed at solving social problems will contribute to the construction of a knowledge society, green transformation, and carbon neutrality.
News
| Mar01 | Mr. Pirro Matteo has joined the Nomura Lab as a Project Researcher and Mr. Barbier–Chebbah Félix of PSL University has joined our group as an internship student. |
| Feb01 | Mr. Bin Chengwen from Zhejiang University joined our group as Visiting Associate Research Fellow. |
| Jan27 | Updated version of our Monte Carlo simulator FreePATHS is now open source and available from the official python repository. |
| Jan16 | Dr. Diego has joined our group as Project Researcher. |
| Jan01 | Prof. Nomura has been appointed Deputy Director of the Institute |
| Dec16 | Dr. Yanagisawa won Best Paper Award in PowerMEMS 2022 (IEEE). |
| Nov1 | Mr. Wu Xin from South China University of Technology and Mr. Yang Lei from Tsinghua University has joined our group as Visiting Associate Research Fellow. |
Recent publications
- Assessing phonon coherence using spectroscopy
As a fundamental physical quantity of thermal phonons, temporal coherence participates in a broad range of thermal and phononic processes, while a clear methodology for the measurement of phonon coherence … Read more - Observation of phonon Poiseuille flow in isotopically purified graphite ribbons
In recent times, the unique collective transport physics of phonon hydrodynamics motivates theoreticians and experimentalists to explore it in micro- and nanoscale and at elevated temperatures. Graphitic materials have been … Read more - Resonant Thermal Transport Driven by Surface Phonon-Polaritons in a Cylindrical Cavity
The axial thermal conductance of a cylindrical cavity supporting the propagation of hybridized guided modes along its interface with SiO22 is quantified and analyzed as a function of its radius and … Read more - Parabolic mirrors collimating and focusing fluxes of thermal phonons
Manipulating heat fluxes at the nanoscale has become increasingly important in modern microelectronics. However, many methods of heat manipulations rely on complex nanofabrication. Here, we propose simple designs for collimation … Read more - Impact of nanopillars on phonon dispersion and thermal conductivity of silicon membranes
The performance of silicon-based thermoelectric energy generators is limited by the high thermal conductivity of silicon. Theoretical works have long proposed reducing the thermal conductivity by resonant phonon modes in … Read more