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Laser Technology Produces Beam Suitable for Radiation Therapy
QUEBEC CITY, Canada, Jan. 1, 2024 — In experiments at the Advanced Laser Light Source Laboratory at the Institut national de recherche scientifique (INRS), researchers demonstrated that ultrafast laser technology can potentially be used in radiation treatment of cancer. The INRS team collaborated with researchers at McGill University Health Centre to show that electrons accelerated in ambient air can provide a high enough dose rate for radiation therapy applications. From left to right: Steve MacLean, CTO at Infinite
Metasurface Technique Enables Advanced Holography Applications
WUHAN, China, Dec. 28, 2023 — Computer-generated holography (CGH) represents a cutting-edge technology that employs computer algorithms to dynamically reconstruct virtual objects. Despite its broad application spectrum, contemporary techniques for CGH rely on projection devices...
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...
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...
Researchers Develop High-Precision Dual-Color Optogenetic Brain Probe
AMHERST, Mass., Dec. 26, 2023 — Optogenetics promises to manipulate brain circuitry by exciting or inhibiting neurons with different wavelengths of light. Until now, neural probes have largely been limited to single colors, only capable of either excitation or inhibition. Probes...
Laser Light Sheet Offers Insight into Snowflake Acceleration
SALT LAKE CITY, Utah, Dec. 25, 2023 — A winter wonderland calls to mind piles of fluffy, glistening snow. But to reach the ground, snowflakes are swept into the turbulent atmosphere, swirling through the air instead of plummeting directly to the ground. The path of precipitation is...
Optoacoustics, AI Monitor Disease in Patients With Diabetics
MUNICH, Dec. 21, 2023 — One complication of diabetes is microangiopathy, a condition affecting the microvascaulature, which affects numerous organs, including the skin. Routine examinations of the skin’s microvasculature could help clinicians better manage diabetes...
Team Deepens Understanding of IC-PIC Integration's Thermal Penalty
LOUVAIN-LA-NEUVE, Belgium, Dec. 21, 2023 — Co-packaged optics for high performance computing and other data center applications require dense integration of silicon PICs with electronic integrated circuits (EICs). Stacking an electronic chip on top of a photonic chip allows for a tight...
Flow Cytometry Uncovers Predictive Biomarker for Severe COVID
MUNICH, Dec. 19, 2023 — Using image-based flow cytometry, researchers at the Technical University of Munich (TUM) identified a biomarker for predicting how serious a COVID-19 infection will be. They also developed a rapid test for assessing a patient’s risk of severe...
3D Printed Micro-optics Embed into a Durable Hybrid Laser
STUTTGART, Germany, Dec. 18, 2023 — Researchers have shown that 3D-printed polymer-based micro-optics can withstand the heat and power levels that occur inside a laser. The advancement enables inexpensive compact and stable laser sources that would be useful in a variety of...
Two-Photon Holographic Mesoscope Probes Activity Across Large Brain Regions
BERKELEY, Calif., Dec.18, 2023 — Recent advancements in two-photon (2P) mesoscopes have extended the field of view (FOV) for deep brain imaging, making it possible to image brain regions as large as 25 mm2. Until now, though, mesoscopes could only measure neural signals; they could...
Photon Sieves Prove to be Pivotal to NASA's Heliophysics Studies
GREENBELT, Md., Dec. 15, 2023 — A pair of precision-orbiting small satellites will attempt to capture the first views ever of small-scale features near the surface of the sun that scientists believe drive the heating and acceleration of solar wind. According to Doug Rabin, a...
Laser Technology Mobilizes Head Trauma Assessment
BIRMINGHAM, England, Dec. 14, 2023 — The decisions made about patient care in the hour following a traumatic brain injury (TBI) are critical to patient outcome. A hand-held diagnostic device to assess the severity of the injury immediately, at the point of care, could make the...
Self-Assembled Resonator for Optical Chips Confines Light at Atomic Scale
KONGENS LYNGBY, Denmark, Dec. 14, 2023 — Optical resonators increase the strength of light-matter interaction by storing light over a long period of time. The smaller the resonator, the tighter the confinement of light will be, resulting in an even stronger interaction that can be used to...
EUV Sources Track Molecular Dissociation in Tandem
HEIDELBERG, Germany, Dec. 12, 2023 — Reportedly for the first time, scientists have combined a broadband extreme-ultraviolet (EUV) probe pulse from high-order harmonic generation (HHG) with a free-electron laser (FEL) pump pulse to observe photodissociation pathways leading to...
Lasers, Spectroscopy, and OCT Cut Bone Safely
BASEL, Switzerland, Dec. 7, 2023 — Researchers at the University of Basel have developed a system that increases the safety and precision of lasers used to cut bone in surgical settings. The system is able to cut bone, control the cutting depth, and differentiate between tissues,...
Optical Data Storage Dips Below the Diffraction Limit
NEW YORK, Dec. 6, 2023 — Physicists at The City College of New York (CCNY) have developed a technique with the potential to enhance optical data storage capacity in diamonds. This is possible by multiplexing the storage in the spectral domain. “It means that we can...
Nanowire Single-photon Detector Lets Machines See Through Walls
TIANJIN, China, Dec. 5, 2023 — Using a superconducting nanowire single-photon detector (SNSPD) as the light-sensing element, researchers from Tianjin University demonstrated non-line-of-sight (NLOS) imaging at two infrared (IR) wavelengths, 1560 nm and 1997 nm. NLOS systems...
Compact Accelerator Achieves a Major Energy Milestone
AUSTIN, Texas, Dec. 4, 2023 — A compact particle accelerator developed by the University of Texas at Austin, several national laboratories, and the Texas-based company TAU Systems has produced an electron beam with an energy of 10 billion electron volts (10 GeV). The...
Mathematically Enhanced Photonic Chip Simplifies Data Processing
MILAN, Italy, Dec. 4, 2023 — Researchers from Politecnico di Milano, Scuola Superiore Sant’Anna, the University of Glasgow, and Stanford University have created photonic chips that mathematically calculate the optimal shape of light to best pass through any environment,...
Researchers Triple Carbon Nanotube Yield with Chemical Vapor Deposition
MOSCOW, Nov. 30, 2023 — Scientists at Skolkovo Institute of Science and Technology (Skoltech) have found a way to increase the yield of single-walled carbon nanotube film production. The materials are promising for solar cells, LEDs, flexible and transparent electronics,...
Micrometric Photovoltaic Cells Aim To Shrink Electronic Devices
OTTAWA, Ontario, Nov. 28 2023 — Researchers have manufactured back-contact micrometric photovoltaic cells, a world-first, according to the multi-institutional collaborators. The work paves the way for a new era of miniaturization for electronic devices. The cells, with a size...
Algorithm Boosts Live-Cell Imaging's Capabilities
OEIRAS, Portugal, Nov. 27, 2023 — Superresolution radial fluctuations (SRRF), a superresolution algorithm, works by observing fluctuations in radial symmetry throughout the frames of an image. SRRF supports live-cell, superresolution microscopy on a range of microscopy platforms...
Laser Technique Accelerates Metamaterial Studies
CAMBRIDGE, Mass., Nov. 27, 2023 — Although they’re made from everyday polymers, ceramics, and metals, metamaterials take on extraordinary properties due to precision microscale construction in intricate architectures. With the help of computer simulations, engineers can play...
Fabrication Method Enables Novel Metamaterial Properties
PHILADELPHIA, Nov. 24, 2023 — In recent decades, researchers have fabricated metamaterials that interact with light in ways that go beyond the physical limits imposed on naturally occurring materials. A metamaterial is composed of arrays of “meta-atoms,” which have...

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