Photocathodes that produce electron beams for electron microscopes and advanced accelerators can be refreshed and rebuilt repeatedly without opening the devices that rely on them, provided the electron emitting materials ...
Nanomaterials
Jul 1, 2020
0
40
Wavefront measurement has various applications in high power amplifiers, adaptive optical system, and phase microscopy. Among methods for high-precision wavefront measurement, the coherent diffraction imaging (CDI) is a technique ...
General Physics
Jul 1, 2020
0
2
Scientists from Skoltech and their colleagues from Russia and Finland have figured out a non-invasive way to measure the thickness of single-walled carbon nanotube films, which may find applications in a wide variety of fields ...
Nanomaterials
Jun 30, 2020
0
6
A team of Brown University physicists has developed a new type of compact, ultra-sensitive magnetometer. The new device could be useful in a variety of applications involving weak magnetic fields, the researchers say.
General Physics
Jun 8, 2020
3
415
When we think of wrinkles, we usually envision the lines etched into our skin, for some an unwelcome reality and for others a proud sign of a life well-lived. In material science, wrinkles can also be either wanted or unwanted. ...
General Physics
Jun 5, 2020
0
266
The performance of magnetic storage and memory devices depends on the magnetization dynamics of nanometer-scale magnetic elements called nanomagnets. Researchers at UC Santa Cruz have developed a new optical technique that ...
General Physics
Jun 2, 2020
0
22
There is currently a strong demand to replace organic liquid electrolytes used in conventional rechargeable batteries, with solid-state ionic conductors which will enable the batteries to be safer and have higher energy density.
General Physics
May 13, 2020
0
6
David Storm, a research physicist, and Tyler Growden, an electrical engineer, both with the U.S. Naval Research Laboratory, developed a new gallium nitride-based electrical component called a resonant tunneling diode (RTD) ...
Optics & Photonics
May 12, 2020
1
1332
Using the same technology that allows high-frequency signals to travel on regular phone lines, researchers tested sending extremely high-frequency, 200 GHz signals through a pair of copper wires. The result is a link that ...
General Physics
Mar 31, 2020
1
1349
Atrial fibrillation (AF) is a heart condition that causes an irregular and abnormally fast heart rate, potentially leading to blood clots, stroke, heart failure and other heart-related complications. While the causes of AF ...
Quantum Physics
Mar 31, 2020
0
203
