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Research & Technology News

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 fault-tolerant, large-scale universal optical quantum computer. To achieve a large-scale universal fault-tolerant optical quantum computer, the light source would require highly squeezed quantum noise and photon number parity that is maintained even in
Research Pinpoints Benefits of Varying Size and Shape of Classical VCSELs
BEIJING, Jan. 12, 2022 — A study conducted by the Bimberg Chinese-German Center for Green Photonics, Changchun Institute of Optics, Fine Mechanics, and Physics of the Chinese Academy of Sciences reported on the progress on multi-aperture VCSELs. The study showed that the...
Metasurface-Based Multiplexing Sharpens Vector Beam Communications
SHENZHEN, China, Jan. 11, 2022 — An approach to cylindrical vector beam (CVB) multiplexing that is based on off-axis polarization control, developed by a research team from Shenzhen University, could help realize the potential of CVB multiplexing as a pathway to high-capacity...
Supercomputer Adds Efficiency to Light-Matter Simulations
TSUKUBA, Japan, Jan. 11, 2022 — Researchers at the University of Tsukuba developed a unified method for simulating light-matter interaction at the atomic scale. The method is considered to be highly efficient by the researchers, as it simultaneously calculates electromagnetic...
Optogenetics Tool Brings Dynamics of Cellular and Tissue Mechanics to Light
OKAZAKI, Japan, Jan. 10, 2022 — A research team at the National Institute for Basic Biology (NIBB) developed an optogenetic tool that can reduce cellular contractile force to better understand how contractile forces generated by cells — those that affect an array of...
Photon-Controlled Electron Beams Push Bounds of Quantum Metrology
LAUSANNE, Switzerland, Jan. 7, 2022 — The combination of integrated photonics and electron microscopy supports a method for highly efficient electron-beam modulation. The experimental work described by scientists at École polytechnique fédérale de Lausanne (EPFL),...
Shift to Transmissive Mode Improves Thick Tissue Laser Speckle Contrast Imaging
WUHAN, China, Jan. 7, 2022 — Although reflective-detected laser speckle contrast imaging (LSCI) is a powerful tool for monitoring blood flow circulation at the surface layers of tissue, it is inadequate for detecting signals from thick tissue layers. A scientific team from...
Photoelectrochemical Sensor Tests for Coronavirus in Minutes
MADRID, Jan. 6, 2022 — Scientists in Spain have designed a photoelectrochemical aptasensor to quickly detect coronavirus using a saliva sample. The sensor device, developed by a research team at the Universidad Carlos III de Madrid (UC3M), obtains quantitative...
Solar Cell Simulator Advances Photovoltaic Efficiency
CAMBRIDGE, Mass., Jan. 5, 2022 — A differentiable solar cell simulator, newly developed by researchers at MIT and Google Brain, tells scientists which changes will provide the improvements they wish to make in a solar cell configuration. The new simulator computes the power...
Magnetically Controlled Nanolasers Protect Optical Signals
ESPOO, Finland, Jan. 4, 2022 — A lasing control mechanism, introduced by a research team at Aalto University, enables users to control plasmonic nanolasers remotely, using a magnetic field. Until now, the only way to switch plasmonic nanolasers on and off has been through direct...
Continuous-Wave Diodes Shrink Size, Cost of 3D Laser Printers
KARLSRUHE, Germany, Jan. 3, 2022 — Compact desktop printers could soon take the place of big, expensive laser printers for printing 3D micro- and nanostructures. A two-step 3D printing process, invented by researchers at Karlsruhe Institute of Technology (KIT) and Heidelberg...
EU Project Combines Optics, Nanotechnology to Restore Vision
GENOA, Italy, Jan. 3, 2022 — HyVIS, an EU-funded initiative targeting degenerative eye disease, is scheduled to get underway. The four-year project aims to develop a way to restore sight in people with diseases such as age-related macular degeneration and retinitis pigmentosa,...
Optimized Optical Tweezers Look Before Grabbing
FREIBURG IM BREISGAU, Germany, Dec. 31, 2021 — Optical tweezers working in tandem will one day be able to grasp and manipulate cell clusters with a high level of dexterity, according to research from the University of Freiburg. The work would allow greater study of tiny objects such as miniature...
Chiral Polymers Take Fast Track to High-Efficiency Circularly Polarized OLEDs
BEIJING, Dec. 30, 2021 — Researchers in the group of Chen Chuanfeng from the Institute of Chemistry of the Chinese Academy of Sciences have demonstrated experimental devices using chiral thermally activated delayed fluorescent (TADF) materials. The devices,...
Ultracold Ions Tune Atomic Clockwork
BRAUNSCHWEIG, Germany, Dec. 30, 2021 — Researchers at the QUEST Institute at the Physikalisch-Technische Bundesanstalt (PTB) have cooled charged ions down to 200 μK. The team combined methods — its established laser cooling of coupled ions method, and those from quantum...
Theoretical Discovery Shines Photons in New Light
HANOVER, N.H., Dec. 29, 2021 — A study from Dartmouth College and SUNY Polytechnic suggests that split photons, called Majorana bosons, exist. The finding advances the fundamental understanding of light, and how it behaves, thanks to the proposed theory that relies on...
Holographic Camera Peers Through Fog, Around Corners
EVANSTON, Ill., Dec. 28, 2021 — A high-resolution camera that can capture images around corners and through scattering media, such as skin, fog, and potentially the human skull, combines high temporal resolution, a small probing area, and a large angular field of view into a...
Data Hacks Demonstrate IT Networks’ Need for Optical Protections
KARLSRUHE, Germany, Dec. 27, 2021 — Information technology computer scientists at Karlsruhe Institute of Technology (KIT) have demonstrated how data can be transmitted to LEDs — contained in regular office devices such as a printer — using a directed laser. The...
Stretchable Semiconductors Detect Ultralow Light
ATLANTA, Dec. 27, 2021 — A stretchable semiconductor material developed by researchers at Georgia Institute of Technology (Georgia Tech) is able to act like a second layer of skin and detect ultralow levels of light. The researchers believe that their soft flexible...
Probabilistically Programmed Systems See More Like Humans Do
CAMBRIDGE, Mass., Dec. 24, 2021 — MIT researchers have developed a framework to enable machines to see the world more like humans do. The artificial intelligence system for analyzing scenes learns to perceive real-world objects from just a few images. It also perceives scenes in...
Optical Oscilloscope Could Increase Data Rates by Factor of 10,000
ORLANDO, Fla., Dec. 23, 2021 — Researchers at the University of Central Florida (UCF) have developed an optical oscilloscope. The instrument converts light oscillations into electrical signals to measure the electric field of light. Due to the high speed at which light...
Protocol Aims to Standardize Raman Spectral Analysis
JENA, Germany, Dec. 23, 2021 — Artificial intelligence (AI) is used increasingly to process and analyze data collected through Raman spectroscopy. Chemometric techniques, which are data-driven and include spectral processing and statistical analysis, can be used to detect and...
Color-Sorting Metalenses Boost Imaging Performance
TOKYO, Dec. 22, 2021 — Pixel-scale metasurface lenses can be used to make imaging sensors roughly three times more sensitive than those currently in use, according to research from NTT Device Technology Labs. The sensor architecture introduced by the team could enable...
Light-Based and Lightweight, Aerogel Photocatalyst Enables Efficient Hydrogen Production
ZURICH, Dec. 22, 2021 — With appropriate pretreatment, aerogels could serve as efficient, visible light-active photocatalysts for industrial use. The Laboratory for Multifunctional Materials at ETH Zurich, headed by professor Markus Niederberger, demonstrated that...
Miniature Frequency Combs Could Confirm, or Refute, Quantum Theories
STANFORD, Calif., Dec. 21, 2021 — Researchers at Stanford University have observed the quantum properties of soliton frequency combs, opening the door to confirm quantum theories. According to the research team, the demonstration is one of the first to show how a miniaturized...

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