News tagged with photonics technology letters


Engineers Closing the Gap Between High-Speed Data Transmission and Processing

Engineers Closing the Gap Between High-Speed Data Transmission and Processing

Technology / Engineering

created Jan 27, 2009 | popularity 4.3 / 5 (4) | comments 0

(PhysOrg.com) -- Electrical engineers at the University of California, San Diego have achieved world-record speeds for real-time signal processing in an effort to meet ambitious goals set by the Defense Advanced ...





Search results for photonics technology letters


Moving video to 'captcha' robot hackers

Technology / Computer Sciences

created 8 hours ago | popularity 3 / 5 (1) | comments 1

We see the popular "captcha" security mechanism often ― wavy letters websites ask us to type into a box. It's used by web pages and newsletter sign-up forms to prevent computer robots from hacking into servers and databases. ...


Glider robot a sleek ocean explorer

Space & Earth / Earth Sciences

created Dec 27, 2009 | popularity 4.6 / 5 (13) | comments 2

The sea was heaving, the skies gray. The captain of the research ship was worried about the weather. About 120 miles off the coast of Spain, three Rutgers University scientists had a narrow window of opportunity to find and ...


Researchers crack part of the neuronal code

Researchers crack part of the neuronal code

Medicine & Health / Neuroscience

created Dec 22, 2009 | popularity 4.9 / 5 (7) | comments 0

(PhysOrg.com) -- Prostheses for paralysed patients, communication with patients who have lost all capacity for normal communication - the hopes for modern brain research are high. However, such brain-machine ...


Glowing channels: Microanalysis system for rapid mercury detection

Chemistry / Analytical Chemistry

created Dec 22, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Water contaminated with mercury is very dangerous for both people and the environment, as mercury is one of the most toxic heavy metals. Though laboratory analyses do deliver precise quantitative measurements, ...


Caltech scientists discover fog on Titan

Scientists discover fog on Titan

Space & Earth / Space Exploration

created Dec 18, 2009 | popularity 4.8 / 5 (11) | comments 2

Saturn's largest moon, Titan, looks to be the only place in the solar system—aside from our home planet, Earth—with copious quantities of liquid (largely, liquid methane and ethane) sitting on its surface. ...


Caltech scientists film photons with electrons

Caltech scientists film photons with electrons

Physics / General Physics

created Dec 16, 2009 | popularity 4.9 / 5 (21) | comments 0

(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...


Thermochemical nanolithography now allows multiple chemicals on a chip

Thermochemical nanolithography now allows multiple chemicals on a chip

Nanotechnology / Nanophysics

created Dec 16, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of ...


Efforts under way to make Web more accessible (AP)

Efforts under way to make Web more accessible

Electronics / Consumer & Gadgets

created Dec 15, 2009 | popularity not rated yet | comments 0

(AP) -- Imagine not being able to use a mouse to open a Web browser or a keyboard to type an e-mail. What if you couldn't distinguish colors on a computer screen or type the distorted letters in order to ...


A view of the Swiss Alps at Matterhorn

Sunshine speeded 1940s Swiss glacier melt: scientists

Space & Earth / Earth Sciences

created Dec 14, 2009 | popularity 5 / 5 (4) | comments 4

A surge in sunshine more than 60 years ago helped Swiss mountain glaciers melt faster than today, even though warmer average temperatures are being recorded now, Swiss researchers said Monday.


Elusive 'hot' electrons captured in ultra-thin solar cells

Physics / General Physics

created Dec 11, 2009 | popularity 4.5 / 5 (12) | comments 3

Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...



List of search results for photonics technology letters