News tagged with optical techniques
Scientists control living cells with light; advances could enhance stem cells' power
Aug 11, 2009 |
4.6 / 5 (5) |
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University of Central Florida researchers have shown for the first time that light energy can gently guide and change the orientation of living cells within lab cultures. That ability to optically steer cells could be a major ...
Distinguishing Single Cells With Nothing But Light
Apr 01, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- Researchers at the University of Rochester have developed a novel optical technique that permits rapid analysis of single human immune cells using only light.
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Synergy between biology and physics drives cell-imaging technology
Jun 02, 2008 |
4.3 / 5 (6) |
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Developing techniques to image the complex biological systems found at the sub-cellular level has traditionally been hampered by divisions between the academic fields of biology and physics. However, a new interdisciplinary ...
Running electronics using light
Oct 19, 2009 |
4.3 / 5 (19) |
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(PhysOrg.com) -- "If you open up almost any electronic gadget, you will see various elements that operating using electric circuitries," Nader Engheta tells PhysOrg.com. "Many of them have different functi ...
Researchers bend light through waveguides in colloidal crystals
Jan 07, 2008 |
4.2 / 5 (10) |
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Researchers at the University of Illinois are the first to achieve optical waveguiding of near-infrared light through features embedded in self-assembled, three-dimensional photonic crystals. Applications for the optically ...
Counterfeit euros are detected with an optical mouse
Nov 17, 2009 |
3 / 5 (1) |
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The sensor of some optical mice can be used to easily and cheaply detect counterfeit euros, according to a study published by Spanish researchers of the University of Lleida (UdL) in the scientific journal ...
Quantum-limited Measurement Method for Nanosensors
Oct 14, 2009 |
4.3 / 5 (4) |
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(PhysOrg.com) -- (PhysOrg.com) -- A team of scientists from the Max Planck Institute of Quantum Optics and the Ludwig Maximilians University have succeeded in applying a novel optical method to nano-mechanical ...
Using 'slow light' to modulate single photon wavepackets
Sep 11, 2008 |
4.4 / 5 (25) |
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(PhysOrg.com) -- Single photons have been studied for a long time, Steve Harris tells PhysOrg.com. “But this is the first time that their wavepackets have been modulated.” Just as electrons may be described as either particles ...
New Research Promises Better Atomic Clocks
Apr 22, 2009 |
4.7 / 5 (9) |
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(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Caravaggio used photographic techniques: researcher
Mar 10, 2009 |
4.5 / 5 (12) |
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Italian Renaissance painter Caravaggio used revolutionary optical instruments to "photograph" his models more than 200 years before the invention of the camera, according to a researcher in Florence.
Researchers use light to detect Alzheimer's
Mar 14, 2008 |
4.5 / 5 (6) |
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A team of researchers in Bedford, Mass. has developed a way of examining brain tissue with near-infrared light to detect signs of Alzheimer's disease.
Perfect sight: Rosetta cameras track asteroid target
Space & Earth / Space Exploration
Aug 18, 2008 |
4.6 / 5 (8) |
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(PhysOrg.com) -- On 14 August, Rosetta conducted a successful trajectory correction manoeuvre using data obtained from the Agency's first-ever optical tracking of an asteroid target, (2867) Steins. Images ...
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