Perfect absorption arises from the strong interaction of valence electrons with light in a conducting material. Optical metamaterial is an effective approach to exploit the superior photon capture capability. Thus, the perfect ...
Optics & Photonics
Apr 1, 2024
0
24
Neutron stars are the end products of massive stars and gather together a large part of the original stellar mass in a super-dense star with a diameter of only around ten kilometers. On 17 August 2017, researchers observed ...
Astronomy
Dec 21, 2023
0
373
The demand to shrink the size of semiconductors coupled with the problem of the heat generated at the hot spots of the devices not being effectively dispersed has negatively affected the reliability and durability of modern ...
Nanophysics
Jun 1, 2023
0
21
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
Armed with a newly minted undergraduate degree in geology, Jasper Baur is in the mining business. Not those mines where we extract metals or minerals; the kind that kill and maim thousands of people every year. Baur and colleagues ...
Earth Sciences
Sep 20, 2021
0
58
UCLA materials scientists have developed a class of optical material that controls how heat radiation is directed from an object. Similar to the way overlapping blinds direct the angle of visible light coming through a window, ...
Materials Science
Apr 27, 2021
0
47
Due to the continuing progress in miniaturization of silicon microelectronic and photonic devices, the cooling of device structures is increasingly challenging. Conventional heat transport in bulk materials is dominated by ...
Nanomaterials
Oct 13, 2020
0
106
Reciprocity isn't always a good thing.
General Physics
Feb 18, 2020
0
103
When you search your lost keys with a flash lamp, when bats detect obstacles during their night flight, or when car radars locate other cars on the road, the very same physical principle works. Be it light, sound, or an electromagnetic ...
Optics & Photonics
Dec 23, 2019
0
12
Researchers at the University of Chicago (UChicago) have recently reported an experimental observation of a matter field with thermal fluctuations that is in accordance with Unruh's radiation predictions. Their paper, published ...
