Posts Tagged ‘optics’
Metamaterial could lead to ‘perfect lens’
STANFORD (US) — Engineers have designed a broadband metamaterial that more than doubles the range of wavelengths of light that can be manipulated. Continue…
Wednesday, May 8, 2013 6:25 - 4 Comments
Science & Technology - Apr 9, 2013 15:14 - 0 Comments
Optical transistors: Why quantum dots could be key
MCGILL U. (CAN) — Researchers have taken an early first step toward developing an optical transistor by showing a new way to control light in the semiconductor nanocrystals known as “quantum dots.” (more…)
Top Stories - Mar 14, 2013 8:15 - 2 Comments
‘Ultimate’ endoscope as thin as a human hair
STANFORD (US) — A new prototype, single-fiber endoscope has a resolution four times better than previous devices of similar design. (more…)
Health & Medicine - Jan 15, 2013 12:23 - 0 Comments
Shot of contrast makes brain tumors glow
STONY BROOK (US) — A new contrast agent can cause brain tumors to glow, potentially leading to more precise surgery. (more…)
Science & Technology - Jan 4, 2013 9:57 - 0 Comments
Short laser pulses ‘tune’ gold nanoparticles
RICE (US) — At different wavelengths, pulsed laser light can individually activate different types of nanoparticles—in this case, shells, rods, and solid spheres mixed together. (more…)
Science & Technology - Dec 24, 2012 11:57 - 0 Comments
To check the time, force molecules to ‘chill’
COLUMBIA U. (US) — Scientists have created a new type of ultracold strontium molecule, made of pairs of atoms cooled to nearly absolute zero, or close to minus 460 degrees Fahrenheit. (more…)
Top Stories - Dec 10, 2012 11:48 - 0 Comments
‘Waveguide’ emits tiny point of light
CALTECH (US) — A new device can focus light into a point just a few nanometers across and may lead to next-generation applications in computing and imaging. (more…)
Science & Technology - Sep 4, 2012 11:29 - 2 Comments
For lighter cars, turn wires into light beams
WARWICK (UK) — One way to make cars of the future lighter and more fuel efficient could be to replace the jumble of wires under the hood with beams of light. (more…)
Science & Technology - Jun 29, 2012 13:41 - 0 Comments
Microscope technology sees sub-cellular in 3D
U. ILLINOIS (US) — A new advance in microscopy offers fast, detailed, 3D views of cells’ internal structures without the use of fluorescence or contrast agents. (more…)
Top Stories - Jun 27, 2012 10:32 - 1 Comment
Laser scalpel would leave skin unharmed
CALTECH (US) — A new way to focus light into tissue paves the way for incision-free surgery that leaves skin intact. (more…)
Science & Technology - Mar 12, 2012 14:29 - 1 Comment
Smartphones with 1,000 times more speed
U. PITTSBURGH (US) — Researchers have demonstrated a physical basis for terahertz bandwidth that could make smartphones and laptops 1,000 times faster than current communication technologies. (more…)
Science & Technology - Feb 24, 2012 11:42 - 0 Comments
Rainbow polymer reveals true colors
U. BUFFALO (US) — A new rainbow-colored polymer could lead to handheld applications for color identification. (more…)
Health & Medicine - Feb 14, 2012 16:29 - 0 Comments
Stain-free imaging zooms in on cancer
U. ILLINOIS (US) — A new stain-free method for reading biopsies promises faster and less subjective cancer detection. (more…)
Top Stories - Jan 9, 2012 17:50 - 2 Comments
‘Time cloak’ makes event vanish
CORNELL (US) — Researchers have demonstrated a “temporal cloak”—albeit on a very small scale—in the transport of information by a beam of light. (more…)
Science & Technology - Dec 9, 2011 11:21 - 0 Comments
Lasers track nanotubes in living cells
PURDUE (US) — A new imaging tool that tracks carbon nanotubes in living cells and the bloodstream could advance their use for biomedical research and clinical medicine. (more…)
Science & Technology - Dec 2, 2011 10:45 - 0 Comments
Coating makes 3-D objects look flat
U. MICHIGAN (US) — Engineers have developed a carbon nanotube coating that can conceal an object’s 3-D geometry, absorbing 99.9 percent of its light to make it look like a flat black sheet. (more…)
Science & Technology - Dec 1, 2011 6:52 - 0 Comments
Ultraviolet lasers get smarter
U. MICHIGAN (US) — Scientists have discovered a way to build compact and efficient ultraviolet light sources that could enhance information storage, microscopy, and chemical analysis. (more…)
Science & Technology - Nov 8, 2011 12:16 - 0 Comments
Metamaterials pave way for superlens
CORNELL (US) — Scientists have developed a technique that could allow metamaterials, known for unusual optical properties, to self-assemble in 3-D. (more…)
Top Stories - Oct 31, 2011 12:43 - 0 Comments
Super efficient OLEDs on flexible plastic
U. TORONTO (CAN) — New organic light-emitting diodes (OLEDs) are not only the most efficient ever made, but have an added bonus: They’re produced on plastic. (more…)
