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Extreme Measurement and Nanotechnology Lab
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A lab that combines scanning probe microscopy with light to measure the nanoworld at ultrafast speeds.
AboutAbout the lab
Measuring the limits of time and space in the nanoworld.
The Shigekawa Lab develops new measurement techniques at the extreme limits, built around scanning probe microscopy and fusing in cutting-edge technologies from different fields such as quantum optics.
The lab aims to create measurement tools with extreme resolution in both time and space, by combining a light source with extreme time resolution and a microscope with atomic-level spatial resolution.
With this technology, the lab aims to advance studies of physical properties at the nanometer scale and at the level of single molecules, the search for new materials, and the development of devices with new functions.
The lab values not only collecting data by combining existing instruments, but also developing new experimental techniques.
Key terms
- Scanning probe microscope
- An instrument that brings a sharp tip close to a sample surface to obtain information from directly beneath it. It can also probe electronic states and forces
- Femtosecond
- A unit of time equal to one quadrillionth (one 1000-trillionth) of a second
- Nanometer
- A unit of length equal to one billionth of a meter
ResearchResearch themes
The lab believes that advancing nanoscale science and technology requires measurement that can resolve individual devices down to their internal local structures, and analyze and control them in extreme regimes. Built around scanning probe microscopy, it combines cutting-edge technologies from other fields such as quantum optics to develop new measurement techniques, aiming to open up new directions in science.
*Illustrative imageMeasuring the Nanoscale with Optical STM
This theme is the development and application of methods that can measure the structure of materials and the ultrafast motion of electrons and holes with nanoscale spatial resolution. One example presented is measuring nanoscale photovoltage by light-modulated tunneling spectroscopy.
*Illustrative imageMeasuring Ultrafast Phenomena on the Femtosecond Scale
The lab measures physical phenomena that occur on picosecond (one trillionth of a second) and femtosecond (one quadrillionth of a second) scales in real time. One example given is the temperature dependence of the ultrafast response that accompanies the metal–insulator phase transition in low-dimensional organic conductors.
MembersFaculty
The members of the Shigekawa Lab consist of faculty members, visiting faculty members and researchers, administrative staff, and master's (first-stage doctoral) program and undergraduate students.As of 2024
- Specially Appointed ProfessorHidemi Shigekawa
- Associate ProfessorOsamu Takeuchi
- Associate ProfessorShoji Yoshida
- Assistant ProfessorYusuke Arashida
- Assistant ProfessorHiroyuki Mogi
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “4-Probe Scanning Tunneling Microscope ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Measuring the Nanoscale with Optical STM: “ESR-STM at QNS in Ewha - front view” Rickinasia / CC BY-SA 4.0 (cropped)
- Measuring Ultrafast Phenomena on the Femtosecond Scale: “Femtosecond Laser and Pulse Compressor - Optics Lab - INRIM” Giorgio Brida from Torino, Italy / CC BY 2.0 (cropped)
- Related lab (光物性理論研究室): “Laser optique” 作者不詳 / Public domain (cropped)
- Related lab (走査電子顕微鏡): “Scientist during work with Scanning Electron Microscope” Gabriela P. / CC BY 4.0 (cropped)
- Related lab (人工ナノ構造物性): “Nion UltraSTEM Electron Microscope ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (量子物性分子理論研究室): “Wire Bonded Superconducting Quantum Chip with 6 Transmons 003” OJB Quantum / CC BY 4.0 (cropped)
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