By connecting two of the biggest radio telescopes in the world, astronomers have discovered that a simple binary wind cannot cause the puzzling periodicity of a fast radio burst after all. The bursts may come from a highly ...
Astronomy
Aug 26, 2021
15
433
Topological insulators have notable manifestations of electronic properties. The helicity-dependent photocurrents in such devices are underpinned by spin momentum-locking of surface Dirac electrons that are weak and easily ...
Researchers have developed a new microscopy technique that can acquire 3-D super-resolution images of subcellular structures from about 100 microns deep inside biological tissue, including the brain. By giving scientists ...
Optics & Photonics
Mar 25, 2021
0
25
For more than a century, optical coatings have been used to better reflect certain wavelengths of light from lenses and other devices or, conversely, to better transmit certain wavelengths through them. For example, the coatings ...
Nanomaterials
Feb 4, 2021
0
140
DNA is the hereditary material in the nucleus of all cells in humans and other living organisms. Besides its significance in biology, DNA has also played a specific role in controlling many physical devices. Recently, an ...
Bio & Medicine
Nov 11, 2020
0
15
Walk into a quantum lab where scientists trap ions, and you'll find benchtops full of mirrors and lenses, all focusing lasers to hit an ion "trapped" in place above a chip. By using lasers to control ions, scientists have ...
Quantum Physics
Oct 22, 2020
0
364
Researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland have developed a microchip technology that can convert invisible near-infrared laser light into any one of a panoply ...
Optics & Photonics
Oct 14, 2020
0
56
Optical spectrometers are instruments with a wide variety of uses. By measuring the intensity of light across different wavelengths, they can be used to image tissues or measure the chemical composition of everything from ...
Optics & Photonics
Oct 13, 2020
0
12
Broadband emissions in the visible spectral range can be achieved by pumping Pr3+ doped in crystal, ceramic and glass. Fluoride glasses are commonly used as host material of gain fiber due to their low-energy phonon distribution. ...
Materials Science
Mar 23, 2020
0
3
While beam steering systems have been used for many years for applications such as imaging, display, and optical trapping, they require bulky mechanical mirrors and are overly sensitive to vibrations. Compact optical phased ...
Optics & Photonics
Mar 19, 2020
0
286
