The bright plumage of birds is often a feast for the eyes, but it has been a headache for scientists who have struggled to recreate the photonic nanostructures that generate those colors in the lab.
Nanophysics
Oct 26, 2023
0
49
Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have built a superconducting camera containing 400,000 pixels—400 times more than any other device of its type.
Optics & Photonics
Oct 25, 2023
11
458
Rotating objects carry angular momentum; this fact extends even to the tiniest of particles, such as photons. Photons possess not one but two distinct forms of angular momentum: spin angular momentum (SAM) and orbital angular ...
Optics & Photonics
Oct 18, 2023
0
58
With the growth in artificial intelligence (AI), 5G systems, cloud computation, and the Internet of Things, transmitters with extremely high capacities are required for data communication. Ultrafast optical modulation is ...
Optics & Photonics
Oct 17, 2023
0
34
A collaborative group of researchers has manipulated the behavior of light as if it were under the influence of gravity. The findings, which were published in the journal Physical Review A on September 28, 2023, have far-reaching ...
Condensed Matter
Oct 16, 2023
0
85
A research team led by Dr. Zhang Jujia from Yunnan Observatories of the Chinese Academy of Sciences and Prof. Wang Xiaofeng from Tsinghua University has revealed the stellar mass violently ejected from a progenitor at the ...
Astronomy
Oct 16, 2023
0
57
Lanthanide (Ln3+)-doped photon avalanche (PA) upconversion nanoparticles (UCNPs) can be applied in super-resolution bioimaging, miniaturized lasers, single-molecule tracking and quantum optics.
Nanophysics
Oct 13, 2023
0
1
Electro-optic modulators, which convert signals from the electrical to the optical domain, are at the heart of optical communications, terahertz wireless communications, microwave signal processing, and quantum technology. ...
Optics & Photonics
Oct 12, 2023
1
16
Physicists have shown that simulating models of hypothetical time travel can solve experimental problems that appear impossible to solve using standard physics.
General Physics
Oct 12, 2023
61
684
Absorption spectroscopy is an analytical chemistry tool that can determine if a particular substance is present in a sample by measuring the intensity of the light absorbed as a function of wavelength. Measuring the absorbance ...
Optics & Photonics
Oct 11, 2023
0
133
