Optical microscopes and tweezers can image and manipulate objects at the microscale for applications in cellular and molecular biology. The optical resolution is, however, hampered by the diffraction limit and therefore both ...
The Galactic O-Star Spectroscopic Survey (GOSSS) is acquiring blue-violet spectroscopy of all optically accessible O stars in the Galaxy at resolution ~2500 and signal-to-noise ratio S/N > 200. To date, data from a total ...
Astronomy
Oct 30, 2018
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11
Physicists from Dresden and Würzburg have developed a novel method for optical microscopy, obtaining high-resolution images using biological motors and single quantum dots.
Nanophysics
May 1, 2018
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114
Scientists from ITMO University have used a silicon-gold nanoparticle agitated by a pulse laser in IR band as an effective source of white light. One such "nanobulb" was integrated into a standard probe microscope, which ...
Nanophysics
Jan 26, 2018
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13
The concept of a perfect lens that can produce immaculate and flawless images has been the Holy Grail of lens makers for centuries. In 1873, a German physicist and optical scientist by the name of Ernst Abbe discovered the ...
Optics & Photonics
Apr 21, 2017
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22
A team of researchers from the National University of Singapore's Faculty of Engineering has developed a novel lens for super-resolution imaging which breaks resolution limitations in microscopy and has potential applications ...
Engineering
Apr 5, 2017
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4
According to current estimates, dozens of zettabytes of information will be stored electronically by 2020, which will rely on physical principles that facilitate the use of single atoms or molecules as basic memory cells. ...
Optics & Photonics
Dec 1, 2016
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13
The angular resolution of a telescope is the smallest angle between two objects that still can be resolved as separate things; in a telescope with high angular resolution, those objects can be very close together and yet ...
Optics & Photonics
Jul 6, 2016
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44
Researchers have developed a new enhanced DNA imaging technique that can probe the structure of individual DNA strands at the nanoscale. Since DNA is at the root of many disease processes, the technique could help scientists ...
Nanophysics
Jun 17, 2016
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2607
The world's most advanced light microscopes allow us to see single molecules, proteins, viruses and other very small biological structures. But even the best microscopes have their limits.
Cell & Microbiology
May 26, 2016
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