Labs in The University of Electro-Communications

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A lab that explores one-dimensional superfluidity in liquid helium confined in nanopores.

The Taniguchi Lab works in low-temperature physics (quantum fluids), studying systems in which liquid helium is confined in nanoscale spaces. The lab has investigated one-dimensional quantum systems, long considered difficult to realize experimentally, using liquid helium inside nanopores. At extremely low temperatures, every substance other than helium freezes, making it possible to maintain an extremely clean system for a long time. Taking advantage of this, the lab is also advancing research in nanotribology, which examines interfacial friction from a microscopic perspective, using pure physisorbed films as the subject.

#Superfluidity #Low-dimensional quantum systems #Nanotribology

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A lab that explores quantum mechanical theory using ultracold atoms and atomic nuclei.

The Quantum Few- and Many-Body Theoretical Physics Lab conducts theoretical research on quantum mechanics, the laws of physics in the microscopic world, using mathematical formulas and computer simulations. Guided by the question "What intriguing phenomena emerge when the Schrödinger equation is solved?", the lab focuses mainly on ultracold atomic gases and atomic nuclei. It is a new lab, established in October 2023. The lab welcomes inquiries and lab visits from students who are considering lab assignment or graduate school.

#Quantum few-body systems #Ultracold atomic gases #Atomic nuclei

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A lab that studies silicon photonics and crystal growth technology for diamond.

The Isshiki Lab studies silicon photonics and diamond crystal growth technology. On the lab's website, the research as a whole is described as "Hybrid & Heterogeneous Integration Research." The website lists silicon photonics, diamond power devices and modules, complex metal oxides, nanocrystalline diamond powder, and integrated quantum photonics as keywords.

#Silicon photonics #Diamond crystal growth #Mixed metal oxides

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A lab that designs nanoscale materials and devices through theory and computation.

The Nakamura Lab investigates the properties of nanoscale materials and devices through theory and simulation, and works on designing new catalysts and materials. The lab belongs to the Electronic Engineering Program in Class III (Science and Engineering) of the School of Informatics and Engineering at the University of Electro-Communications, and to the Department of Engineering Science in the Graduate School of Informatics and Engineering. The research page lists a wide range of themes, including catalysts that reduce carbon dioxide, ultrafast semiconductor devices, thermoelectric materials, and interactions between nanocarbon and molecules. Results of joint research with a technical university in Mexico and the National Institute for Materials Science have been published as papers.

#CO2 reduction catalysts #Hybrid CMOS #Thermoelectric materials

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A lab that explores how light propagates in polymer optical fibers and how they can detect strain.

The Furukawa Lab studies the materials of polymer optical fibers, which are made of polymers, and sensors that use them. The lab works with fibers whose cores have suppressed birefringence, and investigates the relationship between core composition and the properties of light. It also works on polymer optical fiber sensors that detect strain, and on materials that combine polymers with helical carbon microstructures.

#Optical fiber sensors #Optical fibers #Photofunctional polymers

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坂本 克好　研究室 (introduction coming soon)

Optoelectronic devices / surface and interface physics

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A lab that works broadly from electronic materials to electronic device development.

The Tsukamoto Lab works broadly from electronic materials to the development of electronic devices. The lab covers everything from crystal growth of Group IV semiconductors to device prototyping, and also develops elemental technologies for diamond-based devices. Its themes include devices that operate at high frequencies such as millimeter waves, light-emitting semiconductor materials, and diamond power devices. The research is motivated by the goals of building an energy-saving society and opening up frequency resources in high frequency bands.

#Group IV semiconductors #Diamond devices #High-frequency devices

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A lab that experimentally explores the optical properties of nanostructures and phosphors.

The Quantum Optical Properties Lab experimentally studies the optical properties of new phosphor materials, nano-optical materials, and semiconductor microstructures. The lab works to clarify the optical properties of quantum confinement structures such as quantum dots and nanowires, and their interactions with luminescent centers. It searches for new materials and phenomena that contribute to low energy consumption and are environmentally friendly. On the lab's website, it is introduced under the name "Quantum Optical Properties Lab."

#Phosphor science #Semiconductor nanostructures #Laser spectroscopy

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A lab that explores solar cells and optical devices using quantum dots and III-V semiconductors.

The Miyashita Lab, jointly with the Yamaguchi Lab, conducts basic research on creating nanometer-sized materials and investigating their properties. The central focus is quantum dot structures that confine electrons and holes in three dimensions, and the lab also works with quantum nanowires (quantum wires). The Miyashita Lab also develops technologies for solar cells, such as multijunction solar cells combining III-V semiconductors, and studies methods for evaluating them. The lab's website is shared with the Yamaguchi Lab and the Kaizu Lab, and they are introduced together on the same site.

#Quantum dots #Multijunction solar cells #Crystal growth

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A lab pursuing basic research from nanostructures such as quantum dots toward next-generation optoelectronic devices.

Together with the Miyashita Lab, the Yamaguchi Lab conducts basic research toward developing new next-generation optoelectronic nanodevices, through the creation of nanometer-sized materials and the evaluation and analysis of their properties. The central theme is quantum dot structures that confine electrons and holes in three dimensions. The lab studies how to fabricate quantum dots and quantum nanowires and their optoelectronic properties, and researches applications to semiconductor lasers, solar cells, single-photon sources, and more. On the lab's website, the Yamaguchi Lab, the Miyashita Lab, and the Kaizu Lab are introduced together.

#Quantum dots #Solar cells #Scanning probe microscopy