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EDUCATION NEWS
Imaging Algorithm Delivers Superresolution and Fidelity in 3D 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 with commonly used fluorescent protein tags. A new implementation of SRRF, called enhanced superresolution radial fluctuations (eSRRF), was introduced by a team at the Gulbenkian Science Institute. According to the research team, eSRRF provides
Label-Free Imaging Shows Dynamics of Intracellular Cargo Transport DAEJEON, South Korea, Nov. 22, 2023 — Until now, scientists have relied on fluorescence microscopy techniques to study intracellular cargo transport, a vital process to maintaining essential cellular functions. However, the effects of photobleaching and the visual isolation of cellular...
Laser Pulse Compression with Plasma Puts Zettawatt Powers Within Reach GLASGOW, Scotland, Nov. 21, 2023 — The ability to compress laser pulses to ultrahigh powers could open the way for compact lasers in the order of exawatt and above. Such powerful lasers would enable scientists to push the limits of physical science by deepening their study of the...
Light-Activated Tool Controls Protein Bonds and Tracks Cell Adhesion TAMPERE, Finland, Nov. 20, 2023 — Optical tools can be used to activate biological functions, but with current methods the effects are slow to appear, and sustained effects require continuous light activation. As a result, these light-activation tools provide limited control of fast...
Imaging Algorithm Boosts Resolution Without Adding Noise BOSTON, Nov. 16, 2023 — Scientists have used various approaches to improve spatial resolution in fluorescence microscopy. Deconvolution, in which images are numerically deblurred based on a knowledge of the microscope’s point spread function, is one approach....
Leibniz Institute to Open Centre for Photonics in Infection Research JENA, Germany, Nov. 16, 2023 — Germany’s Federal Ministry of Education and Research is funding the establishment of the Leibniz Centre for Photonics in Infection Research (LPI) at the Jena University Hospital. The center aims to advance the development of light-based...
Targeted Photoresist Helps Meet Demand for Smaller Chips UPTON, N.Y., Nov. 14, 2023 — To achieve performance gains in microelectronics, semiconductor size continues to shrink, with feature sizes now in the sub-10-nm range. The challenges associated with the extreme downscaling of semiconductors have led to the adoption of a powerful...
Low-Power Optical Tweezers Shield Trapped Bioparticles from Damage AUSTIN, Texas, Nov. 10, 2023 — Optical tweezers trap and manipulate minute particles with light. The technology is used across fields, ranging from manufacturing to biotech, though it requires the use of high-powered lasers to ensure proper function. These lasers can damage the...
3D Printing and Co-Assembly Smooth Path to Broader Use of Metamaterials POHANG, South Korea, Nov. 9, 2023 — Metamaterials, artificial nanostructures that manipulate light, are costly and technologically challenging to fabricate. The broad, practical use of metamaterials depends on lowering their manufacturing cost and making them easier to create....
Integrating Light-Based Techniques Improves Phototherapy for Cancer BALTIMORE, Nov. 7, 2023 — Photoimmunotherapy targets cancer cells with microscopic, nano-engineered cancer drugs that are light-activated at the lesion site. Although the technology is increasingly used to treat metastatic cancer, tools to improve the effectiveness of...
Virtual Superlens Exceeds Diffraction Limit Without Image Distortion SYDNEY, Nov. 6, 2023 — The diffraction limit enforces physical restrictions on how closely an object can be examined using traditional optical methods. Previous attempts to develop superlenses that image beyond the diffraction limit have met with extreme visual losses, to...
Synthesized Nanoresonators Harness Power of IR for Optics and Electronics STANFORD, Calif., Nov. 1, 2023 — When combined with electronics, infrared (IR) light can enable small, fast devices for sensing, imaging, and signaling at the molecular level. To fully harness the advantages of IR light, the materials used for IR optical and optoelectronic...
Optica Names 2024 Fellows WASHINGTON, D.C., Oct. 31, 2023 — The board of directors of Optica elected 129 members from 26 countries to the society’s 2024 fellow class. Optica fellows are selected based on several factors, including outstanding contributions to research, business, education, engineering,...
Photonic Crystals Imitate Gravitational Effects on Light SENDAI, Japan, Oct. 25, 2023 — A group of researchers has replicated the way that light would behave if it were subject to gravity, supporting a recent scientific theory about pseudogravity. According to the theory, pseudogravity, a phenomenon replicating the effects of gravity,...
Fluorescence Lifetime Imaging Could Improve Cancer Surgery Outcomes BOSTON, Oct. 24, 2023 — Extreme precision is required to surgically remove a cancerous tumor without damaging the surrounding healthy tissue. Yet surgeons often must rely on their eyes and hands to determine where to cut. Fluorescence lifetime (FLT) imaging, developed at...
Quasiparticle Light Source Could Rival Super-Brightness of FELs ROCHESTER, N.Y., Oct. 24, 2023 — An international team of scientists is rethinking the principles of radiation physics, with the goal of creating super-bright light sources that are compact and relatively convenient to use. Coherent light sources such as free-electron lasers (FELs)...
Photonic Material Combines with Photodiodes for High-Performing PICs CHENGDU, China, Oct. 19, 2023 — Thin-film lithium niobate (TFLN) shows strong potential as a platform for integrated photonics, due to its robust electro-optic coefficient, large optical nonlinearity, and wide transparency window. TFLN is used in the development of various...
Low-Temp 3D Printing Process Uses UV Light to Make Multipurpose Glass ATLANTA, Oct. 18, 2023 — Current 3D-printing techniques for fabricating glass involve time-consuming processes that require high temperatures and considerable resources to complete. In a new approach, a research team at the Georgia Institute of Technology (Georgia Tech)...
SLSC Beamforming Reduces Bias in PA Imaging Results BALTIMORE, Oct. 17, 2023 — Photoacoustic (PA) imaging offers a noninvasive means to obtain molecular and functional information about a variety of medical conditions. However, the quality of PA images, which are acquired when light illuminates the skin, is affected by the...
Femtosecond Laser Integrates Optics in Single Glass Substrate for Easy Manufacture LAUSANNE, Switzerland, Oct. 16, 2023 — The short, regular pulses of femtosecond lasers are put to effective use in numerous applications, including laser surgery, micromachining, microscopy, and spectroscopy. Free-space optics offers substantial freedom in femtosecond laser design...
Deep Learning Delivers High-Quality Optoacoustic Images in Real Time MUNICH, Oct. 13, 2023 — High-quality medical imaging from multispectral optoacoustic tomography (MSOT) could be used to diagnose and evaluate a range of diseases, including breast cancer, Duchenne muscular dystrophy, IBD, and many more. However, the length of time...
Electro-Optic Modulators Improve Signal Quality and Cancel Noise ORLANDO, Fla., Oct. 12, 2023 — Delays in optical data transmission cause inconvenient lag times in communications and interfere with immersive experiences like gaming. Two factors that adversely affect the speed and reliability of optical communication are signal distortion over...
Liquid Crystal Optics Support High-Performance Compact VR Display ORLANDO, Fla., Oct. 10, 2023 — Virtual reality (VR) and mixed reality (MR) devices are used to access applications in a growing number of fields, from entertainment to health care to manufacturing to tourism. These applications are transforming the way that people perceive and...
Microscopy Methods Combine to Detect Treatment-Resistant Cancer Cells BALTIMORE, Oct. 9, 2023 — Therapy-induced senescent (TIS) cells are cancer cells that become resistant to therapies and enter a dormant stage. These cells can emerge from dormancy and induce tumor resistance and relapse. To provide insight into how TIS cells evolve, it is...
OLED Pumping Enables Electrically Driven Semiconductor Lasing ST. ANDREWS, Scotland, Oct. 6, 2023 — Researchers at the University of St. Andrews demonstrated an electrically driven, organic semiconductor laser using a new approach that could improve the performance of this class of laser and further the development of ultrafast, organic...
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