A collaborative of Korean researchers has discovered the mechanism of photoluminescence (PL) loss from semiconductor nanoparticles called quantum dots (QDs) and proposed an effective method for stabilization of PL.
Nanophysics
Jun 19, 2015
0
22
The probe of an atomic force microscope (AFM) scans a surface to reveal details at a resolution 1,000 times greater than that of an optical microscope. That makes AFM the premier tool for analyzing physical features, but ...
Nanophysics
May 1, 2015
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1315
Researchers at the UT-research institute MESA+ have developed a method to improve the resolution of a conventional wide-field optical microscope. Scattered light usually reduces the resolution of conventional optical microscopes. ...
Optics & Photonics
Apr 28, 2015
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39
Optical tweezers have been used as an invaluable tool for exerting micro-scale force on microscopic particles and manipulating three-dimensional (3-D) positions of particles. Optical tweezers employ a tightly-focused laser ...
Optics & Photonics
Apr 23, 2015
0
44
The complexity of biology can befuddle even the most sophisticated light microscopes. Biological samples bend light in unpredictable ways, returning difficult-to-interpret information to the microscope and distorting the ...
Optics & Photonics
Apr 14, 2015
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70
To design the next generation of optical devices, ranging from efficient solar panels to LEDs to optical transistors, engineers will need a 3-dimensional image depicting how light interacts with these objects on the nanoscale.
Nanophysics
Apr 8, 2015
0
1633
Lack of oxygen in cells is an indicator of diseases as serious as cerebral haemorrhages, stroke and cancer. Regrettably measuring real-time oxygen concentration in living tissue is difficult with current technologies. Now ...
Analytical Chemistry
Mar 9, 2015
0
11
A new laboratory tool which will allow scientists to build and move microscopic cells could lead to the development of better treatments for disease.
Cell & Microbiology
Mar 2, 2015
0
28
(Phys.org) —Recent experiments have confirmed that a technique developed several years ago at the National Institute of Standards and Technology (NIST) can enable optical microscopes to measure the three-dimensional (3-D) ...
Nanophysics
Aug 27, 2014
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0
Researchers at the University of Illinois at Urbana-Champaign have demonstrated that an array of novel gold, pillar-bowtie nanoantennas (pBNAs) can be used like traditional photographic film to record light for distances ...
Nanophysics
Jul 17, 2014
0
0
