Romanian scientists have discovered a novel approach for the optical manipulation of macromolecules and biological cells. Their findings, published in the European Physical Journal B, stem from challenging the idea that visible ...
Optics & Photonics
Sep 18, 2013
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(Phys.org) —The applications of gene therapy and genetic engineering are broad: everything from pet fish that glow red to increased crop yields worldwide to cures for many of the diseases that plague humankind. But realizing ...
Optics & Photonics
Aug 7, 2013
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Physicists have, for the first time, now built a theoretical construct of beams made of twisted atoms. These findings by Armen Hayrapetyan and colleagues at Ruprecht-Karls-University Heidelberg in Germany are about to be ...
General Physics
Aug 7, 2013
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(Phys.org) —Researchers working at the French National Center for Scientific Research have for the first time, directly measured the Van der Waals force between two atoms. In their paper published in the journal Physical ...
(Phys.org) —A novel process for selecting and examining protein microcrystals, which can be essential for understanding biological functions, is expected to save precious research days and resources and lead to faster breakthroughs ...
Biochemistry
Jun 17, 2013
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A small piece of paper sticks to an electrically charged plastic ruler. The principle of this simple classroom physics experiment is applied at the microscopic scale by so-called optical tweezers to get the likes of polystyrene ...
General Physics
May 8, 2013
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(Phys.org)—Researchers at the University of Dundee in Scotland have devised a means of using a Microsoft Kinect sensing system to allow for hand control of holographic optical tweezers. They describe their results in a ...
(Phys.org)—Using ultra-low input power densities, researchers at the University of Illinois at Urbana-Champaign have demonstrated for the first time how low-power "optical nanotweezers" can be used to trap, manipulate, ...
General Physics
Sep 17, 2012
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(Phys.org)—Researchers at Sandia National Laboratories in Albuquerque, New Mexico have succeeded in observing the interference of a single atom over a distance far greater than its coherence length using lasers and sequences ...
(Phys.org) -- Laser beams can be made to form dark as well as bright intensity helices, or corkscrews of light. In a paper shortly to appear in Optics Express, Dr Ole Steuernagel, at the University of Hertfordshire's Science ...
Optics & Photonics
Jun 12, 2012
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