News tagged with light signals


Paper sheds new 'light' on fascinating rhythms of the circadian clock

Paper sheds new 'light' on fascinating rhythms of the circadian clock

Biology /

created Feb 16, 2009 | popularity 4.6 / 5 (7) | comments 0

(PhysOrg.com) -- Scientists have long known that interrupting the 24-hour circadian rhythm plays havoc with the lives and health of medical, military and airline personnel, factory employees and travelers.





Search results for light signals


Green light from Silicon

Physics / Condensed Matter

created Apr 15, 2009 | popularity 4.2 / 5 (15) | comments 4

(PhysOrg.com) -- Researchers at the University of St Andrews have made a surprise discovery that the material at the heart of the microelectronics industry can emit green light.


New research findings pave the way to more accurate interpretation of brain imaging data

Medicine & Health / Neuroscience

created Aug 28, 2009 | popularity 4.8 / 5 (4) | comments 0

Functional magnetic resonance imaging (fMRI) is a technique widely used in studying the human brain. However, it has long been unclear exactly how fMRI signals are generated at brain cell level. This information is crucially ...


Compressing photonic signals for greater bandwidth

Compressing photonic signals for greater bandwidth

Physics / Optics & Photonics

created Nov 03, 2009 | popularity 4.5 / 5 (6) | comments 3

Cornell researchers have developed an ingenious method to time-compress optical signals. The process could enable optical communication systems to carry many more bits per second or could also be used to generate ...


Scientists guide immune cells with light and microparticles

Scientists guide immune cells with light and microparticles (w/ Video)

Chemistry / Biochemistry

created Nov 16, 2009 | popularity 5 / 5 (3) | comments 0

A team led by Yale University scientists has developed a new approach to studying how immune cells chase down bacteria in our bodies. Their findings are described in the November 15 issue of Nature Methods Advanc ...


Light Peak Module

Intel's Light Peak Will Replace Copper Wires

Technology / Hi Tech

created Sep 24, 2009 | popularity 4.5 / 5 (33) | comments 18

(PhysOrg.com) -- At the Intel Developer Forum in San Francisco Wednesday, the company announced a new optical cable that will be able to transfer data, between electrical devices, starting at speeds of 10 ...


LED closes the yellow gap: Full conversion of blue into amber light by new nitride phosphor

LED closes the yellow gap: Full conversion of blue into amber light by new nitride phosphor

Physics / Condensed Matter

created Jul 23, 2009 | popularity 4.8 / 5 (8) | comments 1

(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, ...


Shifting sound to light may lead to better computer chips

Shifting sound to light may lead to better computer chips

Physics / General Physics

created Mar 16, 2009 | popularity 4 / 5 (4) | comments 0

By reversing a process that converts electrical signals into sounds heard out of a cell phone, researchers may have a new tool to enhance the way computer chips, LEDs and transistors are built.


New findings about brain proteins suggest possible way to fight Alzheimer's

New findings about brain proteins suggest possible way to fight Alzheimer's

Medicine & Health / Research

created Oct 06, 2009 | popularity 5 / 5 (2) | comments 0

The action of a small protein that is a major villain in Alzheimer's disease can be counterbalanced with another brain protein, researchers at UT Southwestern Medical Center have found in an animal study.


Scientists see the light: How vision sends its message to the brain

Medicine & Health / Research

created Jan 29, 2009 | popularity 4 / 5 (5) | comments 0

Scientists have known for more than 200 years that vision begins with a series of chemical reactions when light strikes the retina, but the specific chemical processes have largely been a mystery. A team of researchers from ...


IMEC reports method to integrate plasmonic technology with state-of-the-art ICs

IMEC reports method to integrate plasmonic technology with state-of-the-art ICs

Physics / Optics & Photonics

created Apr 30, 2009 | popularity 4.3 / 5 (8) | comments 1

IMEC reports a method to integrate high-speed CMOS electronics and nanophotonic circuitry based on plasmonic effects. Metal-based nanophotonics (plasmonics) can squeeze light into nanoscale structures that ...



List of search results for light signals