In certain molecules, the so-called photoacids, a proton can be released locally by excitation with light. There is a sudden change in the pH value in the solution—a kind of fast switch that is important for many chemical ...
Analytical Chemistry
Apr 3, 2023
0
298
Hot bodies emit heat in the form of electromagnetic radiation. Lightbulbs and night vision cameras are examples of technologies based on this physical phenomenon. Our daily experience tells us that heat is always directed ...
Nanophysics
Mar 30, 2023
1
278
An international team of researchers, led by Drexel University, has found that a thin coating of MXene—a type of two-dimensional nanomaterial discovered and studied at Drexel for more than a decade—could enhance a material's ...
Nanophysics
Mar 30, 2023
1
501
Solar-thermal technology is a promising, environmentally friendly energy harvesting method with a potential role to play in solving the fossil fuel energy crisis.
Nanophysics
Feb 21, 2023
0
101
A newly discovered exoplanet could be worth searching for signs of life. Analyses by a team led by astronomer Diana Kossakowski of the Max Planck Institute for Astronomy describe a planet that orbits its home star, the red ...
Astrobiology
Feb 3, 2023
3
2135
Researchers have experimentally demonstrated, for the first time, a mechanically flexible silver mesh that is visibly transparent, allows high-quality infrared wireless optical communication and efficiently shields electromagnetic ...
Optics & Photonics
Jan 25, 2023
0
231
Researchers in Drexel University's College of Engineering have developed a thin film device, fabricated by spray coating, that can block electromagnetic radiation with the flip of a switch. The breakthrough, enabled by versatile ...
Nanophysics
Jan 16, 2023
3
384
Some of the largest and most sophisticated telescopes ever made are under construction at the Simons Observatory in Northern Chile. They are designed to measure cosmic microwave background—electromagnetic radiation left ...
Astronomy
Dec 2, 2022
0
239
Detecting electromagnetic waves in the terahertz frequency range remains a challenging problem. Researchers from the University of Cambridge, together with physicists from the University of Augsburg, have recently discovered ...
General Physics
Sep 2, 2022
0
937
A special bonding state between atoms has been created in the laboratory for the first time: With a laser beam, atoms can be polarized so that they are positively charged on one side and negatively charged on the other. This ...
Optics & Photonics
Aug 1, 2022
0
696
