Astronomers from the Yunnan University in China and other institutions have carried out photometric and spectroscopic ...

The James Webb Space Telescope has done it again, discovering the "mother of all early galaxies," a record-breaking distant ...

Researchers from Beijing Institute of Control Engineering, Northwestern Polytechnical University, and Macau University of ...

Rare earth elements (REEs) is a peculiar group of chemical ... The results of the intermediate condition (Set 2) were clear in the spectrum; they displayed good sensitivity, low background emission ...

The analysis combines a recent formulation of the Purcell effect in semiconductor nanolasers with finite-element modeling and established theoretical models for temperature-dependent emission spectra.

Now an international team of astronomers has analyzed an unusual energy peak detected by NASA's Fermi Gamma-ray Space Telescope and concluded that it was an emission spectra, according to a new ...

giving each element a distinctive emission spectrum. When the energy of an incident photon matches the energy difference between two electronic energy levels in an atom, the atom absorbs the photon, ...

Interestingly, rare earth ions are widely used as luminescent materials due to their sharp emission bands and longer lifetime derived from the special electron layer structure of rare earth elements .

Parts of the electromagnetic spectrum invisible to human eyes reveal a vast amount of information about the universe, but it took a long time for astronomers to learn how to view it. For thousands ...

Choi. "Therefore, if these two technologies are appropriately combined and applied in real life, a synergistic effect that reduces the emission of air pollutants as well as improves combustion ...