News tagged with laser signal
Biochip-based device for cell analysis
(Phys.org) -- Inexpensive, portable devices that can rapidly screen cells for leukemia or HIV may soon be possible thanks to a chip that can produce three-dimensional focusing of a stream of cells, according ...
Chemistry / Analytical Chemistry
May 30, 2012 |
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'Microring' device could aid in future optical technologies
(PhysOrg.com) -- Researchers at Purdue University and the National Institute of Standards and Technology (NIST) have created a device small enough to fit on a computer chip that converts continuous laser light ...
Oct 19, 2011 |
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Engineers grow nanolasers on silicon, pave way for on-chip photonics
Engineers at the University of California, Berkeley, have found a way to grow nanolasers directly onto a silicon surface, an achievement that could lead to a new class of faster, more efficient microprocessors, ...
Feb 06, 2011 |
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Redefining electrical current law with the transistor laser
(PhysOrg.com) -- While the laws of physics weren't made to be broken, sometimes they need revision. A major current law has been rewritten thanks to the three-port transistor laser, developed by Milton Feng ...
May 12, 2010 |
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New nanolaser -- spaser -- key to future optical computers and technologies
(PhysOrg.com) -- Because the new device, called a "spaser," is the first of its kind to emit visible light, it represents a critical component for possible future technologies based on "nanophotonic" circuitry, ...
Aug 16, 2009 |
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Taking the twinkle out of the night sky
If you are like most people, you probably enjoy the twinkling of stars that blanket the sky on a clear summer night. If you are an astronomer, chances are you find it extremely annoying.
Aug 04, 2010 |
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City lights could reveal E.T. civilization
In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. In a new paper, Avi Loeb (Harvard-Smithsonian Center for Astrophysics) and Edwin Turner ...
Nov 03, 2011 |
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Up-scale: Frequency converter enables ultra-high sensitivity infrared spectrometry
In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, ...
Aug 26, 2009 |
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Lasers generate underwater sound
Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...
Sep 04, 2009 |
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Finding explosives with laser beams
Scientists at Vienna University of Technology have found a way to detect chemicals over long distances, even if they are enclosed in containers.
Feb 27, 2012 |
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New sensor exploits traditional weakness of nano devices
By taking advantage of a phenomenon that until now has been a virtual showstopper for electronics designers, a team led by Oak Ridge National Laboratory's Panos Datskos is developing a chemical and biological sensor with ...
Feb 12, 2010 |
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Shifting sound to light may lead to better computer chips
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.
Mar 16, 2009 |
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High-speed signal mixer demonstrates capabilities of transistor laser
(PhysOrg.com) -- Scientists at the University of Illinois have successfully demonstrated a microwave signal mixer made from a tunnel-junction transistor laser. Development of the device brings researchers ...
Mar 19, 2009 |
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Researchers find cells move in mysterious ways (w/ Video)
Our cells are more like us than we may think. They're sensitive to their environment, poking and prodding deliberately at their surroundings with hand-like feelers and chemical signals as they decide whether ...
Dec 16, 2009 |
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De-multiplexing to the max: 640 Gbits/second
Sliced light is how we communicate now. Millions of phone calls and cable television shows per second are dispatched through fibers in the form of digital zeros and ones formed by chopping laser pulses into bits. This slicing ...
Feb 02, 2009 |
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