View allAll Photos Tagged Filaments
The Great Nebula in Orion is an intriguing place. Visible to the unaided eye, it appears as a small fuzzy patch in the constellation of Orion. But this image, an illusory-color four-panel mosaic taken in different bands of infrared light with the Earth orbiting WISE observatory, shows the Orion Nebula to be a bustling neighborhood of recently formed stars, hot gas, and dark dust. The power behind much of the Orion Nebula (M42) is the stars of the Trapezium star cluster, seen near the center of the featured image. The orange glow surrounding the bright stars pictured here is their own starlight reflected by intricate dust filaments that cover much of the region. The current Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years. via NASA go.nasa.gov/2QdYuII
Detail photo of the positioning of a small glass tube filled with argon gas that contains a twisted nanocarbon across from a high-resolution micro lens, which will be used to monitor the local temperature of the small filaments in an experiment in the Kotov Lab at the North Campus Research Center of the University of Michigan in Ann Arbor on Wednesday, December 18, 2024. This lens and the software used with it allowed for precise thermal mapping of the twisted nanocarbon. The glass tube is filled with argon because nanocarbon is highly susceptible to oxidation under air conditions, especially when heated. Argon, being an inert gas, prevents oxidation and ensures the stability of the nanocarbon during high-temperature operation.
Researchers from the Kotov Lab have found that submicrometer twisted filaments made from materials like nanocarbon or metals can produce strong chiral infrared photons, especially in the wavelength range of 500 to 300 nanometers. The twisted filaments emit light that is significantly brighter, up to 100 times more bright than other similar light emitters. The special helical shape of the filaments helps in controlling the type of twisted light they emit. Additionally, coating these nanocarbons with durable, transparent ceramics results in bright and adjustable chiral emitters capable of functioning at temperatures that were previously thought to be unreachable. This advancement opens new possibilities in the field of chiral photonics and high-temperature applications. COMPASS is the Center for Complex Particle Systems which is directed by Nicholas Kotov, the Irving Langmuir Distinguished University Professor of Chemical Sciences and Engineering.
Photo: Brenda Ahearn/University of Michigan, College of Engineering, Communications and Marketing
All rights reserved. Please do not use or reproduce this image on websites, blogs or any other media without my permission.
El Concurso Nacional de Innovaciones INNOVAR 2018 realizó su exposición abierta al público en el Espacio Darwin San Isidro. En esta edición, el gran premio INNOVAR se entregó a dos proyectos: a un sistema de monitoreo remoto de barreras ferroviarias automáticas, y a una secadora de filamento para impresión 3D. Conocé a todos los ganadores acá: www.argentina.gob.ar/noticias/se-conocieron-los-ganadores...