Articles tagged with Stereolithography
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Researchers create a new method for laser-based powder bed fusion that achieves unprecedented lattice walls and surfaces while reducing memory demand. The approach enables the high-fidelity fabrication of microscale shell lattices with improved strength and toughness.
Researchers developed new photon avalanching nanoparticles that exhibit high nonlinearities, overcoming challenges in realizing intrinsic optical bistability at the nanoscale. The breakthrough paves the way for fabricating optical memory and transistors on a nanometer scale comparable to current microelectronics.
Researchers created complex 3D structures that mimic bone microstructure using laser 3D printing and an alternate soaking process. The method supports the creation of bone grafts or artificial bone marrow, offering a potential solution to treating leukemia, lymphoma, and immune diseases.
The study found that 3D integration can lead to significant heat spreading and crosstalk, reducing heater efficiency by up to -43.3% and increasing thermal crosstalk by up to +44.4%. However, optimizing design variables, such as spacing between µbumps and interconnect linewidth, can minimize the thermal penalty of 3D integration.
Researchers have made groundbreaking progress in confining light to subnanometer scales using a novel waveguiding scheme. The approach generates an astonishingly efficient and confined optical field with applications in light-matter interactions, super-resolution nanoscopy, and ultrasensitive detection.
Researchers successfully fabricate a microlens on a single-mode polarization-stable VCSEL chip using 2-photon-polymerization 3D printing, reducing beam divergence from 14.4° to 3° and enabling compact optical gas sensors with improved performance.
A new parallel peripheral-photoinhibition lithography system has been developed, enabling the fabrication of subdiffraction-limit features with high efficiency. The system uses two beams to excite and inhibit polymerization, allowing for nonperiodic and complex patterns to be printed simultaneously.
Researchers have developed stronger and more ductile microlattice materials by reducing unit sizes from 60 μm to 20 μm, enabling tailoring of mechanical properties. The size effect results in higher fracture strain and strength, making these materials suitable for various structural and functional applications.
Researchers characterize material properties of IP-Q using Raman spectroscopy and nanoindentation, revealing elastic parameters and their effects on acoustic behavior. The study optimizes elastic parameters for TPP-fabricated structures, benefiting applications in life science, mobility, and industry.
A research group from Tokyo University of Science has discovered molecular features that govern the filling process at nanoscales, enabling finer resolutions in ultraviolet nanoimprint lithography. The findings provide valuable insights for guiding the selection and design of optimized resists for sub-10 nm resolution.
Researchers have created a new glass-ceramic that emits light in response to mechanical stress, enabling potential applications for monitoring stress in artificial joints and structures.
Researchers developed new polymer materials with adjustable refractive index, enabling easy creation of optical interconnects between photonic chips and board-level circuits. The technology has the potential to boost Internet data center efficiency by reducing power consumption and heat generation.
Researchers have developed miniaturized reflectors that enlarge the uses of remote infrared spectroscopy, allowing for field-ready devices with minimal size, weight, and power requirements. The devices utilize Ge-BaF2 thin films for surface micromachined mid-wave and long-wave infrared reflectors.
Researchers demonstrate commercialization of photonic MEMS switches fabricated on silicon-on-insulator wafers using regular photolithographic and dry-etching processes. The switch design includes a 32x32 matrix of replicated elements, achieving excellent light power loss, optical bandwidth, and switching speed.
Researchers at UC San Diego developed a new method to fabricate perovskites as single-crystal thin films, resulting in flexible single-crystal films with controlled area, thickness, and composition. These single-crystal films showed greater efficiency and enhanced stability than polycrystalline counterparts.
Researchers have developed a new approach to rapid and large-scale stereolithographic 3D printing, called HARP, which surpasses the capabilities of existing methods like CLIP. The method uses a flowing layer of fluorinated oil as a heat exchanger, allowing for faster rates and wider resin compatibility.
A new 3D printing technique enables fast fabrication of microlens arrays with precise optical surfaces, overcoming existing limitations. The method combines oscillation-assisted digital light processing (DLP) and grayscale UV exposure to produce uniform lenses with high surface smoothness.
Researchers pack laser-written structures deep into silicon chips, enabling arbitrary 3D fabrication without layers above or below. The method also enables creating functional optical devices and 3D sculpturing of entire wafers.
Researchers develop low-cost fabrication process using low-power laser etching to create polymer waveguides, enabling integration of optical sensing onto lab-on-a-chip devices. The new technique also shows promise for other applications requiring precision microstructuring.
Researchers from the University of Illinois have developed a simplified approach to fabricating flat, ultra-thin optics using plasmon-assisted etching. This technique enables simple etching without hazardous chemical agents, greatly simplifying design iteration steps and reducing workload in cleanrooms.
Researchers have made significant breakthroughs in femtosecond laser writing, enabling the creation of new optical materials and devices. Key findings include the importance of temperature in material structuring and the potential for precise control of induced birefringence.
Recent progress in chalcogenide glass photonics has been driven by scientific and technological challenges. The issue highlights the unique optical properties of chalcogenides, which have found important applications in electronics, imaging, and sensing applications.
Researchers at Duke University have developed a novel class of Janus particles that can be controlled in six degrees of freedom. This breakthrough allows for precise manipulation of the particles' positions and orientations, opening up possibilities for various applications, including electronic paper and self-propelling micromachines.