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173 labs · 21 student voices
Faculties at Hokkaido University ›
Hidekatsu Suzuura, Professor
0 student voices
The Condensed Matter Physics Engineering Lab studies, from a theoretical standpoint, the properties shown by electrons in materials. In nanoscale materials, quantum properties appear strongly, and behaviors different from those of large crystals emerge. Targeting carbon nanotubes, quantum dots, antiferromagnets, and superconductors, the lab investigates electron transport phenomena and optical responses. Using symmetry-based techniques and first-principles calculations, the lab works to predict physical phenomena that are not yet known.
Koichi Ichimura, Professor
0 student voices
The Topology Science and Engineering Lab studies the properties of matter from the perspective of topology (the mathematical study of shapes and spaces). Topology is a field of mathematics that focuses on properties that do not change under continuous deformation. The lab investigates the behavior of electrons, focusing mainly on low-dimensional conductors, in which electrons can move only in limited directions and which exhibit charge density waves and superconductivity. Using scanning tunneling microscopy and spectroscopy and molecular beam epitaxy, the lab also studies the properties of strongly correlated electron systems and ultrathin films.
Osamu Matsuda, Professor
0 student voices
The Quantum Functional Engineering Lab uses ultrashort pulse lasers to generate sound inside materials and observes how it propagates. Ultrasound, whose frequencies are far higher than the sound audible to the human ear, can reveal very fine structures and stiffness. The lab films ripples spreading across crystal surfaces as video, and controls how sound travels using phononic crystals and acoustic metamaterials. It also works on detecting nanoscale vibrations with atomic force microscopy and observing ultrafast electron and heat diffusion.
Hiroyuki Takakura, Associate Professor
0 student voices
The Crystal Physics and Engineering Lab studies the structure and properties of solids called quasicrystals. Quasicrystals are materials in which atoms are arranged in an orderly way despite having no periodicity, and they were discovered in 1984. They exhibit five-fold and ten-fold rotational symmetries, which are forbidden in ordinary crystals, and are also related to the golden ratio and fractals. Using diffraction to determine how atoms are arranged, the lab clarifies how quasicrystals differ in properties from periodic crystals and amorphous solids.
Tsutomu Uchida, Associate Professor
0 student voices
The Nanobio Engineering Lab pioneers methods for measuring and controlling atoms and molecules at the nanoscale. Using an electron microscope that can see individual atoms, the lab observes graphene and single atoms and creates new materials. The other pillar is research on water: the lab investigates what structures water takes inside and outside cells and how it is involved in biological activity. The lab aims to apply this nanobiotechnology to life sciences, energy, the environment, information and communications, and more.
Ryuji Nomura, Professor
0 student voices
The Superfluid Physics Lab is a low-temperature physics lab that studies the behavior of matter at extremely low temperatures. The Nomura-Tani group works on the superfluidity shown by helium, as well as quantum liquids and quantum solids. The Kobayashi group investigates the electronic properties of organic conductors from the perspectives of superconductivity and magnetism. The lab has reported results in papers, such as anomalous oscillations of helium droplets and time crystals that appear in dripping.
Ryuji Morita, Professor
0 student voices
The Optical Quantum Physics Lab studies quantum physics using lasers. At its center is a new kind of light called an "optical vortex," which carries orbital angular momentum. The lab combines techniques for creating optical vortices with techniques for making laser light high-intensity and ultrashort-pulsed, as well as nonlinear optics. It aims to apply this to the search for new physical properties, the control and processing of materials, and ultra-high-precision measurement.
Satoru Adachi, Professor
0 student voices
The Extreme Quantum Optics Lab develops new light sources and spectroscopic methods, and uses light to measure and control material properties in real time. The Adachi Group conducts basic and applied research focused on the spins of electrons, holes, and nuclei in semiconductor nanostructures. The Sekikawa Group studies the interaction between the intense optical fields produced by ultrashort-pulse lasers and atoms and molecules. Using ultrashort extreme ultraviolet pulses generated by high-order harmonics, the lab follows reactions that proceed on femtosecond timescales.
Yuji Hasegawa, Professor
0 student voices
The Photonics Lab studies methods for extracting the information contained in light waves and photons accurately and efficiently. With quantum optics and matter-wave optics as keywords, the lab carries out experiments that test fundamental phenomena of quantum mechanics. These include experiments using neutron interferometers and precision measurements of atoms and molecules cooled with lasers. The lab also conducts joint research with private companies, research institutes, and other universities.
Hideaki Obuse, Professor
0 student voices
The Solid State Physics Lab studies phenomena occurring in matter from a theoretical standpoint. In addition to long-standing topics in condensed matter physics such as phonons, disordered systems, and topological phases, the lab also deals with newer topics such as non-Hermitian systems and quantum walks. The symmetries and topological phases of physical systems play major roles in a wide range of systems, including phonon, electron, and photon systems. The lab goes beyond theory and also puts effort into proposing experiments to verify the phenomena it predicts.
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