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University of Tokyo News
Optical Imaging Circuit Bridges Timescales in High-Speed Photography
TOKYO, Dec. 28, 2023 — Ultrafast optical imaging is typically measured in picoseconds, whereas high-speed electronic cameras image at the millisecond and microsecond timescale. To bridge the gap between these technologies, a research team at the University of Tokyo developed a technology they’re calling “spectrum circuit,” a precision optical circuit that allows superfine images to be taken over multiple timescales at high speed. Using the new technology, the researchers
Measurement-based Quantum Compute Leaves Bottlenecks at the Gate
WAKO, Japan, Dec. 27, 2023 — Much of the progress so far in quantum computing has been done on so-called gate-based quantum computers. These devices use physical components, most notably superconducting circuits, to host and control the qubits. The approach bears similarity to...
Wearable Sensor Uses Raman Spectroscopy for Chemical Analysis
TOKYO, July 4, 2022 — An ultrathin sensor spun from gold can be attached directly to the skin without irritation or discomfort. Developed by researchers at the University of Tokyo, the sensor is enabled by Raman spectroscopy and can measure different biomarkers or...
Squeezed Light Source Aims to Hasten Arrival of Large-Scale Quantum Computers
TOKYO, Jan. 13, 2022 — NTT Corp., in collaboration with the University of Tokyo and RIKEN, has developed an optical fiber-coupled quantum light source. Such a light source that can produce squeezed light is considered to be a crucial component to realizing a...
Light-Activated Molecule Eliminates Alzheimer’s Protein in Live Mice
TOKYO, April 15, 2021 — Research from the University of Tokyo has demonstrated the efficacy of a small, light-activated molecule in removing clumps of amyloid protein found in the brains of mice with Alzheimer’s disease. If perfected for use in humans, the method...
Microscopy Method More Sensitive for Viewing Live Cells
TOYKO, Jan. 4, 2021 — Researchers from the University of Tokyo have developed a way to increase the extent and types of information they are able to ascertain about the insides of living cells by using existing microscopy techniques. Their method does not require...
Laser-Powered Nanomotors Follow Their Path
TOKYO, Nov. 4, 2020 — Researchers from the Institute of Industrial Science at the University of Tokyo have designed linear nanomotors that can be made to move in controlled directions by laser light. The technology has applications in microfluidics, including...
Extreme UV Source Facility Opens for Use
TOKYO, Oct. 1, 2020 — University of Tokyo researchers have established a high-frequency laser source facility located at the university that enables investigation of time-dependent phenomena such as ultrafast chemical reactions and fast-acting biological processes. The...
Infrared Spectroscopy Moves to the Fast Lane
TOKYO, Sept. 2, 2020 — Researchers at the University of Tokyo have developed a technique to drastically increase the speed of infrared spectroscopy. The technique, called time-stretch infrared spectroscopy, surpasses dual-comb spectroscopy nearly 10× over. The...
True Holographic Movie Within Reach
TOKYO, Sept. 1, 2020 — It’s been 43 years since audiences heard those famous words “Help me, Obi-Wan Kenobi. You’re my only hope” from a hologram projection in the first Star Wars film, yet true holographic movies, like the one R2-D2 projected of...
Photonic Crystal Generates VUV Light at Wavelengths Suitable for Spectroscopy
TOKYO, July 31, 2020 — Researchers at the University of Tokyo have created a tabletop device that efficiently generates circularly polarized vacuum ultraviolet (VUV) light using an ultrathin film with nanoscale perforations. VUV wavelengths, which can be absorbed by air...
Sensor Uses Quantum Entanglement to Detect Magnetic Excitation
TOKYO, Feb. 21, 2020 — Using the principle of quantum entanglement, scientists at the University of Tokyo’s Research Center for Advanced Science and Technology (RCAST) demonstrated the coupling of a millimeter-size magnetic sphere with a sensor and showed that the...
1D Analogs of 2D Heterostructures Could Find Multiple Applications
TOKYO, Feb. 6, 2020 — Technological devices are becoming smaller and more feature-rich in part because scientists are exploring new materials and new ways to use existing materials. One area being investigated by materials scientists is the function of flat...
Spectroscopy Technique Widens Spectra for Measuring Molecular Structure
TOKYO, Sept. 27, 2019 — Researchers at the University of Tokyo have combined two current spectroscopy techniques — infrared (IR) absorption and Raman scattering spectrometry — to create complementary vibrational spectroscopy. The new technique employs IR absorption and...
Engineers Perform Computational Logic with Optical and Electrical Signals
TOKYO, Jan. 16, 2019 — In work that could help advance low-power, high-performance computer chips, researchers at the University of Tokyo and RIKEN have employed UV light and electric fields to perform logic operations with a chemical device. The use of electric fields...
Microgears Made from Germanium Generate Twisted Light
SOUTHAMPTON, England, Dec. 31, 2018 — Miniature gears made from germanium have demonstrated the ability to generate light that has orbital angular momentum. This new light source could be used to boost the amount of data that can be transmitted through optical computing. Light carries...
Broadband Networks, Sensing Spur Fiber Optic Progression
Apr 5, 2017 — Optical fiber technology itself is not new. But it is quickly expanding and finding integration in novel sensors and laser systems. In 2017, a total of 421 million kilometers of optical fiber is expected to be installed in communication networks...
Collaboration Fuels Asia-Pacific Market Growth
Feb 18, 2016 — Science and technology in Asia-Pacific is ahead of the pack in some focused markets; Japan, China, Taiwan and Korea are dominating various sectors, while Singapore is demonstrating “world-leading photonics activity.” In fact, the entire...
Laser Glasses Aim to Counteract Low Vision
KANAGAWA, Japan, March 12, 2015 — A new type of smart glasses that shine laser light directly onto the retinas could be a boon to people with poor eyesight. QD Laser Inc. is developing the device in collaboration with the Institute for Nano Quantum Information Electronics at the...
New CEO Joins Mitsubishi Electric
TOKYO, Feb. 24, 2014— Mitsubishi Electric Corp. has named Masaki Sakuyama as its new president and CEO. He will replace Kenichiro Yamanishi, effective April 1. Sakuyama began working at Mitsubishi in 1977 as an engineer for Kobe Works. He became the company’s...
Squeezed light measures moving target
TOKYO – A novel quantum mechanical squeezing technique that precisely tracks the phase of optical waveforms in motion has broken the standard limits for ultraprecise measurement by exploiting quantum lightwaves in a different way. In optical communications,...
Moving Target Measured with Squeezed Light
TOKYO, Sept. 24, 2012 — A novel quantum mechanical squeezing technique that precisely tracks the phase of optical waveforms in motion has broken the standard limits for ultraprecise measurement by exploiting quantum lightwaves in a different way.
Ultrathin solar cells for stretchable applications
Jun 1, 2012 — An ultrathin flexible organic solar cell less than 2 µm thick could have implications for the design of future flexible electronic devices. Scientists from Johannes Kepler University Linz and the University of Tokyo developed the...
Tsunami mapped with laser scanners
SENDAI, Japan – Using eyewitness video and terrestrial lasers to map the epic March 2011 Tohoku tsunami could produce flooding forecasts that influence future evacuation plans and building designs and could help prevent disasters of similar magnitude from taking...
Ultrathin Solar Cells for Stretchable Applications
LINZ, Austria, April 6, 2012 — An ultrathin flexible organic solar cell less than 2 µm thick could have implications for the design of future flexible electronic devices.
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June 2024
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