Diamonds engage both optical microscopy and MRI for better imaging
When doctors or scientists want to peer into living tissue, there's always a trade-off between how deep they can probe and how clear a picture they can get......»»
World"s first micromachine twists 2D materials at will
Just a few years ago, researchers discovered that changing the angle between two layers of graphene, an atom-thick sheet of carbon, also changed the material's electronic and optical properties. They then learned that a "twist" of 1.1 degrees—dubbe.....»»
Repurposing pencil lead as an optical material using plasma
Optical materials are essential in many modern applications, but controlling the way a material reflects light on its surface is costly and difficult. Now, in a recent study, researchers from Japan found a simple and low-cost way of tuning the reflec.....»»
Advanced orbital angular momentum mode switching in multimode fiber utilizing an optical neural network chip
The rapid development of technologies such as the internet, mobile communications, and artificial intelligence has dramatically increased the demand for high-capacity communication systems. Among various solutions, mode-division multiplexing (MDM) ha.....»»
Quality control: Neatly arranging crystal growth to make fine thin films
Table salt and refined sugar look white to our eyes, but that is only because their individual colorless crystals scatter visible light. This feature of crystals is not always desirable when it comes to materials for optical and electrical devices, h.....»»
Polarization volume gratings break uniformity-efficiency tradeoff in AR waveguide displays
Augmented reality (AR) has evolved from a futuristic concept to a widespread technology, thanks to advancements in microdisplay technologies, ultracompact imaging optics, and high-speed digital processors......»»
Observations from Black Hat USA 2024, BSidesLV, and DEF CON 32
I recently spent six days in Las Vegas attending DEF CON, BsidesLV, and Black Hat USA 2024, where I had the opportunity to engage with and learn from some of the top security experts in the world. A major theme across all three conferences was the cu.....»»
Novel light transport model improves X-ray phase contrast imaging
Researchers at the University of Houston unveiled an advancement in X-ray imaging technology that could provide significant improvements in medical diagnostics, materials and industrial imaging, transportation security and other applications......»»
New insights into neural circuit imaging: A comparison of one-photon and two-photon techniques
In the quest to unravel the complexities of neural circuits, scientists are beginning to use genetically encoded voltage indicators (GEVIs) to visualize electrical activity in the brain. These indicators are crucial for understanding how neurons comm.....»»
Coherence entropy unlocks new insights into light-field behavior
Light technology is at the heart of many cutting-edge innovations, from high-speed internet to advanced medical imaging. However, transmitting light through challenging environments, such as turbulent atmospheres or deformed optical systems, has alwa.....»»
Advanced microscopy method reveals hidden world of nanoscale optical metamaterials
Scientists from the Department of Physical Chemistry at the Fritz Haber Institute of the Max Planck Society have made a significant discovery in the field of nanotechnology, as detailed in their latest publication in Advanced Materials. Their paper,.....»»
AI-driven method enhances electron microscopy imaging capabilities of complex biological systems
Electron microscopy has enabled visualization of the intricate details inside cells. The advancement to 3D electron microscopy, known as volume EM (vEM), has further expanded this three-dimensional, nanoscale imaging capacity. However, trade-offs bet.....»»
Researchers discover new material for optically-controlled magnetic memory
Researchers at the University of Chicago Pritzker School of Molecular Engineering (PME) have made unexpected progress toward developing a new optical memory that can quickly and energy-efficiently store and access computational data. While studying a.....»»
Ars asks: What was the last CD or DVD you burned?
With the demise of Apple's SuperDrive, we reminisce on our final homemade optical discs. Enlarge / This is one method of burning a disc. (credit: 1001slide / Getty Images) We noted earlier this week that time seems to ha.....»»
PrivacyLens uses thermal imaging to turn people into stick figures
"Most consumers do not think about what happens to data collected by smart home devices." Enlarge / The round lens of PrivacyLens captures standard digital video while the square lens senses heat. The heat sensor improves the cam.....»»
Novel X-ray imaging technique resolves fusion-related nanofoams in 3D
The sun's fusion reactions drive its temperatures to thousands of degrees, and today scientists are seeking to recreate these star-powering processes in the lab as a means of an alternative clean energy......»»
Precise stirring conditions key to optimizing nanostructure synthesis
Stirring allows for homogenization and efficient gas exchange—this fact has been known for decades. Controlling the stirring rate during the nanocluster synthesis is pivotal in achieving nanostructures with well-defined sizes, structures, optical p.....»»
Towards high quality transferred barium titanate ferroelectric hybrid integrated modulator on silicon
Future optical communication and signal processing systems will require high-volume optical links, wherein photonic integrated devices play a key role. Si photonics is currently among the most advanced techniques for realizing low-cost PIC. However,.....»»
Microscopy technique "paves way" for improving understanding of cellular functions
Scientists have developed a new way of counting labeled proteins in living cells that could become a standard and valuable tool in the field of biomedical research......»»
Optical navigation tech could streamline planetary exploration
In a dim, barren landscape like the surface of the moon, it can be easy to get lost. With few discernable landmarks to navigate with the naked eye, astronauts and rovers must rely on other means to plot a course......»»
Improving resolution and reducing noise in fluorescence microscopy with ensured fidelity
Fluorescence microscopy is a cornerstone of modern biological imaging, allowing scientists to study cells and their processes in real time. However, limitations in resolution and noise levels can hinder the clarity and detail of these images. Moreove.....»»