Natural and manmade physical structures all lose energy, and scientists work hard to eliminate that loss or compensate for it. Optical and photonic devices lose energy through light scattering, radiation or material absorption. ...
Optics & Photonics
Sep 10, 2021
0
208
Like a chameleon of the night sky, the moon often changes its appearance. It might look larger, brighter or redder, for example, due to its phases, its position in the solar system or smoke in Earth's atmosphere. (It is not ...
Planetary Sciences
Apr 28, 2021
0
64
Hyaluronic acid, also known as hyaluronan, is a polysaccharide that helps establish the viscosity of bodily fluids. According to a new study by EPFL scientists, it also influences the behavior of far more water molecules ...
Materials Science
Mar 4, 2021
0
41
Recently, Prof. Gao Xiaoming's group from the Anhui Institute of Optics and Fine Mechanics (AIOFM) of the Hefei Institutes of Physical Science (HFIPS) designed and manufactured a photoacoustic spectroscopy-based sensor to ...
Analytical Chemistry
Jan 6, 2021
0
6
Current state-of-the-art techniques have clear limitations when it comes to imaging the smallest nanoparticles, making it difficult for researchers to study viruses and other structures at the molecular level.
Nanophysics
Nov 16, 2020
0
326
Many people wear masks in public to slow the spread of COVID-19, as recommended by the Centers for Disease Control and Prevention (CDC). However, masks with exhalation valves do not slow the spread of the disease, and now, ...
Soft Matter
Nov 10, 2020
3
1909
Scientists in Australia have stumbled across an unusual way to observe color that had previously gone unnoticed.
Optics & Photonics
Oct 15, 2020
1
3218
Like a comic book come to life, researchers at Stanford University have developed a kind of X-ray vision—only without the X-rays. Working with hardware similar to what enables autonomous cars to "see" the world around them, ...
Optics & Photonics
Sep 9, 2020
1
486
Antimony sulfide, or stibnite (Sb2S3), has been investigated intensively in recent years as a promising material for nontoxic, environmentally friendly solar cells. It is now possible to fabricate thin photovoltaic films ...
Optics & Photonics
Aug 26, 2020
2
12
Light-by-light scattering is a rare phenomenon in which two photons—particles of light—interact, producing another pair of photons. Direct observation of this process at high energy had proven elusive for decades, until ...
General Physics
Jun 19, 2020
0
44
