Brewer Science’s Post

Ancient 3D paper art, kirigami, could reshape modern wireless technology. Researchers at Drexel University and the University of British Columbia believe kirigami, the ancient Japanese art of cutting and folding paper to create intricate three-dimensional designs, could provide a model for manufacturing the next generation of antennas. Recently published in the journal Nature Communications, research from the Drexel-UBC team showed how kirigami—a variation of origami—can transform a single sheet of acetate coated with conductive MXene ink into a flexible 3D microwave antenna whose transmission frequency can be adjusted simply by pulling or squeezing to slightly shift its shape - https://lnkd.in/gDECTXYg #antennas

Curious about the nanoscale structures within thin films? Join us for an insightful webinar as we unveil the mysteries with Grazing-Incidence X-ray Scattering (GISAXS). This powerful technique is revolutionizing our understanding of nanoscale architecture in thin films and surfaces. 🔍 𝐖𝐞𝐛𝐢𝐧𝐚𝐫 𝐓𝐢𝐭𝐥𝐞: Unveiling Nanoscale Structures in Thin Films with Grazing-Incidence X-ray Scattering 📅 𝐃𝐚𝐭𝐞 𝐚𝐧𝐝 𝐓𝐢𝐦𝐞: March 6, 2024, 16:00 - 17:00 (UTC+08:00) 🌐 𝐎𝐯𝐞𝐫𝐯𝐢𝐞𝐰: Grazing-incidence small-angle X-ray scattering (GISAXS) has become a game-changer in investigating nanoscale structures. This webinar will provide a comprehensive overview of GISAXS, its physical principles, and how it's reshaping our understanding of thin films and surfaces. 🔬 𝐖𝐞𝐛𝐢𝐧𝐚𝐫 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬: • Physical principles and basics of grazing-incidence X-ray scattering. • Components used in GISAXS experiments. • Data interpretation basics. • Optimizing experiments for precise results. • Application examples showcasing real-world impact. 🎙️ 𝐒𝐩𝐞𝐚𝐤𝐞𝐫: Dr. Armin Moser (Language: English) 🔗 https://loom.ly/I6w2ZFU #smallanglexray #webinar #webinars #xray #xrayscattering #thinfilm #films #nanoscale #architecture

⚡️ A paper authored by B-PHOT researchers has emerged as one of the most downloaded articles in the March edition of Optica's Optics Express journal. 🔝 ⚙️ Titled "Fabrication of multilevel metalenses using multiphoton lithography: from design to evaluation", the paper outlines a groundbreaking procedure for designing and fabricating multilevel metalenses using multiphoton-based direct laser writing. 🧑🔬 The study, led by Koen Vanmol, Al Ameen ABDUL NAZAR, Hugo Thienpont, Francesco Ferranti, and Jürgen Van Erps, delves into the meticulous process of pushing the boundaries of this rapid and adaptable fabrication technique to achieve compact high-numerical aperture metalenses on flat substrates and optical fiber tips. 📄 Download the paper here: https://lnkd.in/eZTZiZk6 #BPHOT #VUBrussel #Photonics #Optics #Optica #Journal #Paper #Publication #Fabrication #Manufacturing #Design #Metalenses #Lens #Laser #LaserWriting #Multiphotoni #Litography

Free-standing microscale photonic lantern spatial mode (De-)multiplexer fabricated using 3D nanoprinting Nature https://lnkd.in/gzKxHRPu

Download tip!

Nano-imprint lithography of broad-band and wide-angle antireflective structures for high-power lasers. #SOLNIL Anti reflection coatings are key components of high power laser systems. Many different materials and fabrication processes have been developed to match the requirements of different laser applications (CW, nanosecond or ultrashort pulses, from UV to IR). However, conventional nano-fabrication methods for these devices pose several issues in terms of scalability. Here we show efficient anti reflection coatings on conventional glass and fused silica with high total transmission and achromaticity (99.5% < T < 99.8% from 390 to 900 nm and 99% < T < 99.5% from 800 to 1600 nm) and wide angular acceptance for both polarization channels (T > 99% up to 50 degrees for pp and ss polarization). Our components exhibit high laser induced damage threshold in the sub-picosecond regime (>5 J/cm 2 at 1030 nm, 500 fs), nanosecond regime (>150 J/cm 2 at 1064 nm, 12 ns and >100 J/cm 2 at 532 nm, 12 ns), and low absorption in the CW regime (<1.3 ppm at 1080 nm) close to those of the fused silica substrate. They are obtained with a sustainable method, sol-gel coating and nano-imprint lithography of metal oxides, a mask-less, direct moulding process adaptable to different substrates, compatible with plate-to-plate and roll-to-plate industrial production. Beyond high-power laser optics, our results are relevant to displays, automotive glass, imaging, photovoltaic, telecommunication, wireless communication, fiber optics, detector devices, emitting devices and quantum optics. https://lnkd.in/eJjZK6GH

YOU MIGHT BE THINKING ABOUT MEMORY THE WRONG WAY! In the animated film Inside Out, we see memory being depicted as video globes that can be replayed. While this is an incorrect representation of how we remember things, the film had other incredibly accurate details about memory. Have you noticed that stories told over and over especially by many people are likely to have inconsistencies in details even if they were all eyewitnesses? Most people think they remember things perfectly well, but this is far from the truth. Memory is usually defined in accordance with the prevalent technology at the time of definition. Once it was likened to a soft wax tablet by ancient philosophers, then a library with the invention of the printing press, and with current technology, a video recording. Our memories are not replicas of past events. Our memories are reconstructive meaning they are subject to be biased, selective, and fragile.

🌟The Science of Floating: Exploring Acoustic Levitation🔊 🛰️ Acoustic levitation is a technique that uses sound waves to suspend objects in mid-air without any physical support. 🌟How It Works: -Sound Waves: Loudspeakers generate high-frequency sound waves that create pressure. -Pressure Nodes: These waves form standing waves with nodes (points of no movement) and antinodes (points of maximum movement). -Levitation: Objects placed at the nodes experience balanced forces, allowing them to float. 🌟Applications: -Material Science: Researchers can study the properties of materials without contamination from surfaces. -Pharmaceuticals: Precise mixing of drugs without containers, reducing contamination. -3D Printing: Manipulating tiny particles to build structures layer by layer. -Art Installations: Creating visually stunning displays with floating objects. 🌟In space exploration, acoustic levitation can be a game-changer for handling delicate materials in microgravity environments.🚀🌟🛰️ 🌟How It Works in Space -Microgravity: In space, the absence of gravity makes traditional handling of materials challenging. -Acoustic Levitation: By using sound waves, scientists can create pressure nodes to levitate and manipulate materials without physical contact. 🌟Applications: -Material Processing: Delicate materials can be mixed, heated, or cooled without containers, preventing contamination. -Biological Experiments: Cells and other biological samples can be studied in their natural state without interference from surfaces. -Assembly of Components: Small parts can be precisely positioned and assembled using sound waves, crucial for building complex structures in space. -Fluid Dynamics: Studying the behavior of liquids in microgravity without the need for containers. This technique allows for precise and contamination-free handling of materials, making it ideal for the unique conditions of space. 🚀🔊 #AcousticLevitation #SoundWaves #Microgravity #SpaceExploration #MaterialScience #InnovativeTech #NonContactHandling #FutureTech #ScientificResearch #TechInnovation #Antigravity

#Research #Paper 📢 ISD Research Team Introduced a New Approach to Creating 3D Microstructures A big round of applause to Prof. Mitch LI and his research team for their accepted article on Advanced Functional Materials #AFM, one of the top journals in this field. The research introduced a new approach to creating 3D #microstructures with higher simplicity and repeatability, which is a significant improvement in advanced manufacturing, especially in emerging miniaturized applications, e.g. #InvasiveRobotics, minimized #DrugDelivery, implanted #batteries and #nano-photonics. #Self-assembly is a powerful strategy for creating 3D artificial structures. The existing thin film release techniques limits structural flexibility and complexity. Prof. Mitch LI and his team proposed a localized #laser scribing strategy that can guide the self-assembly of 2D thin films into 3D microstructures. The laser-induced heating and momentum can release the films and roll them into various microstructures. This method allows accurate control of shapes, curvatures, orientations, and sizes for the fabricated rolls. No pre-patterning or post-drying is needed. The flexibility and simplicity of this method represents a significant improvement over existing self-assembly techniques and may enrich thin film self-assembly materials and applications. Let’s take a look at this video and understand how a localized laser scribing strategy prepares gold micro-rolls. #HKUST #HKUSTAIS #HKUSTISD #Manufactuing #Laser #3D #2D #Mircostrcuture #SelfAssembly #Engineering #Innovation

The researchers are optimistic about the potential of this technique as a cost-effective approach to enhancing the resolution of optical microscopes. The ability to create custom-designed microspheres with exceptional geometric qualities opens doors for novel applications in various optics and photonics research fields. #3DPrinting #Microscopy #SyntecOptics