You're here: My Science Blogging » Discovery » Article: Reveal Mistery of Insibility Cloak by Nanolayers Technology
Yessi Pratiwi — October 5, 2007 / 1:51 am
Since the 1970’s, nanolayers have been important parts of lasers and other optical devices that require good 2-D confinement in a thin layer. Nanolayers has been around longer than other nanotechnology applications. Actually, a nanolayer is a layer of material which is no thicker than a few nanometers. Nanolayers are more commonly known as quantum wells.
Now, insibility cloaks that work at optical wavelengths are a step closer to reality. Invisibility cloaks burst into the public consciousness last year, when a transatlantic team unveiled both the theory and a working device. Engineering constraints only allowed them to construct a cloak that could hide a very small object at microwave wavelengths, as confirmed by a microwave detector, and they warned that to achieve the same feat at optical wavelengths would require an extremely difficult leap in miniaturisation.
Ideally we should surround the entire quantum well with reflectors. We don’t’ want to lose the photons right away otherwise we’ll never achieve coherent emission of monochromatic photons. The photons will need to bounce around the quantum well (thanks to the reflectors) and aid in the stimulation of more photons of the exact same wavelength. Maybe there are not many people realize that this is the way all modern lasers are made.
Well, I cant say this nanolayer technology as a new invention. But you know, this have been a fundamental structures of nanotechnology.
Post to: delicious, Digg, ma.gnolia, Stumbleupon
Search only in this blog
Search across Asia Blogging Network
More? Go to Asia Blogging Network Column section.
ibnusomowiyono on Music For Heart Disease Healing ibnusomowiyono on Virtual Heart Siturir on Genetic Roots of Synaesthesia Discovered ibnusomowiyono on Hydrogen Technology as Our Next Fuel? LnddMiles on Engineers Make First ‘Active Matrix’ Display Using Nanowires, Research Reported p4ladin on Hydrogen Cars With New Storage System Fitri Wulandari on Birth Control Pill Gives Long-lasting Protection Against Ovarian Cancer? Flash on Giant Sperm Found in Microfossil Ahmad on The Contactless Payment swine flu in Texas on Mobile Phones Affects Animal’s Memory, Research FoundA feed could not be found at http://3gweek.net/feed/
A feed could not be found at http://feeds.feedburner.com/transjogja
Ikuti diskusi, tuliskan komentar Anda.