News tagged with evanescent fields

Novel Superlens Offers a Simplified Subwavelength Imaging Technique

(PhysOrg.com) -- Since the first demonstrations of subwavelength imaging just a few years ago, scientists have been making great improvements, developing a variety of new methods for realizing high-resolution imaging. Recently, ...

Physics / Optics & Photonics

created May 11, 2009 | popularity 4.3 / 5 (16) | comments 1 weblog




Search results for evanescent fields


New technique lights up the creation of holograms

Researchers at the RIKEN Advanced Science Institute (Japan) have developed a unique way to create full-color holograms with the aid of surface plasmons.

Physics / General Physics

created Mar 19, 2012 | popularity 4.7 / 5 (37) | comments 1

Coke cans focus sound waves beyond the diffraction limit

(PhysOrg.com) -- When trying to focus sound waves into as small an area as possible, scientists run into a fundamental limit called the diffraction limit. That is, when sound waves are focused into a region ...

Physics / General Physics

created Jul 12, 2011 | popularity 4.7 / 5 (20) | comments 27 | with audio podcast report

Tiny ring laser accurately detects and counts nanoparticles

(PhysOrg.com) -- A microlaser no bigger than a pinprick can accurately detect and count individual viruses, the particles that jumpstart cloud formation or those that contaminate the air we breathe.

Nanotechnology / Nanophysics

created Jun 28, 2011 | popularity 3.7 / 5 (3) | comments 1 | with audio podcast

Nano-LEDs emit full visible spectrum of light

(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs aren't intended ...

Nanotechnology / Nanophysics

created Jun 17, 2011 | popularity 4.9 / 5 (18) | comments 2 | with audio podcast feature

Nanopillars yield more precise molecular photography

(PhysOrg.com) -- A Stanford research team uses glowing nanopillars to give biologists, neurologists and other researchers a deeper, more precise look into living cells.

Nanotechnology / Bio & Medicine

created Apr 07, 2011 | popularity 5 / 5 (3) | comments 2 | with audio podcast

Researchers make first perovskite-based superlens for the infrared

Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses ...

Physics / Optics & Photonics

created Mar 29, 2011 | popularity 5 / 5 (3) | comments 2 | with audio podcast

Anti-mirror optical illusion could increase LED luminosity and laser power

(PhysOrg.com) -- By making multiple objects appear to look like only one using a "perfect lens," scientists have demonstrated a new optical illusion that could have practical applications in lighting systems. ...

Physics / Optics & Photonics

created Nov 15, 2010 | popularity 5 / 5 (20) | comments 7 | with audio podcast feature

Extraordinary light enhancement technique proposed for nanophotonic devices

(PhysOrg.com) -- In a new study, scientists have shown that simply tailoring the nanoscale geometrical parameters of dielectric structures can result in an increase in the light intensity to unprecedented levels. Theoretically, ...

Nanotechnology / Nanophysics

created Nov 03, 2010 | popularity 4.7 / 5 (13) | comments 0 | with audio podcast feature

Transformation optics make a U-turn for the better

(PhysOrg.com) -- Berkeley researchers have combined the scientific fields of transformation optics and plasmonics to demonstrate that with only moderate modifications of the dielectric component of a metamaterial, ...

Physics / General Physics

created Jul 01, 2010 | popularity 4.9 / 5 (11) | comments 0 | with audio podcast

German physicists develop a quantum interface between light and atoms

German hysicists at the Johannes Gutenberg University Mainz have developed a quantum interface which connects light particles and atoms.

Physics / Quantum Physics

created May 27, 2010 | popularity 4.8 / 5 (24) | comments 8 | with audio podcast


List of search results for evanescent fields