Nano Light-Emitting Fibers In the Lab 67
moscowde writes "Researchers at Cornell University have created a so-called Nano-Lamp — a microscopic collection of light-emitting fibers with dimensions of only a few hundred nanometers. The fibers are made of a polymer spiked with ruthenium molecules in a process dubbed 'electrospinning.' The bright spots on the fibers are smaller than the wavelength of the light they emit. The nanofiber glows bright orange when exposed to an electric field and can be seen in the dark with the naked eye. A professor at Princeton University called this 'a breakthrough in the way nanosize light sources are made.' Since the nanofibers are flexible, they could potentially be used in clothing or bendable computer displays."
Bendable screens (Score:5, Interesting)
Four questions about bendable screens (which I love the idea of. I would have to update my laptop if they come out with those.) I am not a scientist, so I have no clue what the answers could be.
Re:Light (Score:3, Interesting)
flexible displays (Score:3, Interesting)
Clothes (Score:2, Interesting)
I don't get it (Score:3, Interesting)
2) put down a drop of it smaller than a wavelength
3) excite it with UV light or electrons
4) viola and arbitrarily small light source much smaller than a wavelength
Coat the tip of any nano fiber this way and it's still true.
Wha's the big deal? Atoms emit light from source smaller than a wavelength all the time.
What's tricky is that short of negative index materials you can't propagate light or confine light beyond the near field in areas less than the wavelength squared (or thereabouts). This is not to say that light guides can't be smaller than the wavelength because some guides don't actually confine the light inside.
TFA does not give me enough info to see if they are beating this last effect.
Re:Clothes (Score:3, Interesting)
http://youtube.com/watch?v=Yd99gyE4jCk [youtube.com]
Re:Bendable screens (Score:2, Interesting)
We're talking a bendable screen here, and average personal intelligence. I'd never take a laptop anywhere it could get wet, but say I had something resembling a piece of paper--I know I'll end up treating it like one every so often. As things get less klunky, they need to also get more dummy resistant. As an over-obvious example, I wonder how many people accidentally drowned their phones before cell phones came out!... scratch that thought.. the number would be too large for me to maintain my withering dignity.
Re:Bendable screens (Score:3, Interesting)
I have noticed LED back lights becoming available in desktop LCD displays where power is not as significant an issue.