Month: September 2022

NO LIMITS. " There are no theoretical limitations on the size of an object hidden with an invisibility cloak based on transformation optics." https://lnkd.in/enxaHbT View in LinkedIn

"METAMATERIAL CLOAKING is the usage of metamaterials in an invisibility cloak. This is accomplished by manipulating the paths traversed by light through a novel optical material. Metamaterials direct and control the propagation and transmission of specified parts of the light spectrum and demonstrate the potential to render an object seemingly invisible." https://lnkd.in/efMKQTG View in LinkedIn

AN ILLUSION. "Metamaterial cloaking, based on transformation optics, describes the process of shielding something from view by controlling electromagnetic radiation. Objects in the defined location are still present, but incident waves are guided around them without being affected by the object itself." https://lnkd.in/efMKQTG View in LinkedIn

CHIRAL LIGHT. "One of the peculiar properties of plasmonic materials and metamaterials resides in their negative local polarizability, which is the main mechanism behind the cloaking phenomenon for reduction of total scattering." https://lnkd.in/eAziAGc View in LinkedIn

ANTI-CLOAKS. "We also note the interesting possibility of realizing "anti-cloaks", i.e., covers to be placed around a cloaked object that undo its effect by realizing an anti-transformation that neutralizes the transformation in the invisibility cloak." https://lnkd.in/eV48D4C View in LinkedIn

SIZE MATTERS. "All-angle invisibility for human-scale bodies in the visible is extremely challenging to achieve, even if the phase requirement is dropped. This is because human-scale objects are considerably larger than the wavelength of light, and visible frequencies correspond to quite a broadband window to cover." https://lnkd.in/eV48D4C View in LinkedIn

"BREAKING THE DIFFRACTION LIMIT has opened new vistas for exploitation of light on the nanoscale. To some extent theory has raced ahead of experiment, but the challenges are being met and new technology developed. It is an exciting time of nanoscale light." https://lnkd.in/eVf6BPv View in LinkedIn

EIGHT YEARS OLD. "Arguably the most exciting application of metamaterials to date is the possibility of cloaking objects, or suppressing their detectability to incoming waves of different form. This concept has been experimentally verified at specific frequencies of operation, but we are still far from achieving broadband invisibility in the optical range for large-scale objects." (2014). https://lnkd.in/ejq5Tyt View in LinkedIn

ULTRA-SMART SCIENCE. There are so many truly gifted and imaginative scientists applying their trade of curiosity and deduction that it makes for truly thrilling living. Not a week goes by without a new insight, albeit often badly dressed in obscure jargon, but nevertheless, a gift to culture and humanity. View in LinkedIn

TIP OF THE FUNDING ICEBERG. "The U.S. Defense Advanced Research Projects Agency (DARPA) -- the research wing of the Pentagon -- has received the green light for $15 million in funding over three years to investigate urban obfuscants. This ambitious project is an attempt to create a protective shield for use by soldiers in urban combat situations." Urban obfuscants, DARPA talk. https://lnkd.in/eQxdyWG View in LinkedIn