Electrically biased suspended graphene devices show an intense electroluminescence in the visible range with a tunable emission spectrum. Graphene and related two-dimensional materials are ...

In this International Year of Light, it is particularly appropriate to review the historical concept of what is light and the controversies surrounding the extent of the visible spectrum. Today we ...

If we confine ourselves to the visible portion of the electromagnetic spectrum, and ignore the brain's role in color perception (see: recent blue/black vs gold/white dress controversy) an object ...

The human brain literally glows, but with a light so faint that it remains invisible to the naked eye. Canadian researchers ...

Since most quantum dots emit in the visible spectrum, only emission near the surface of the skin can be detected. Biology, however, is fairly transparent in the infrared and therefore deeper ...

Learn how hot gases and can emit visible line spectra, and how they can absorb wavelengths of light. You’ll also learn about the Big Bang Theory.

The QDI 2010™ microspectrophotometer is used to obtain UV-visible-NIR spectra and images of microscopic samples with accurately and easily. The QDI 2010™ is designed to measure the absorbance, ...

The spectral emission lasted for about 40 seconds and reached a peak energy of about 12 MeV, compared to 2 or 3 MeB for visible light, per the authors. Science, 2024. DOI: 10.1126/science.adj3638 ...

Bright Visible Light Emission in Graphene (VIDEO) ... This movie clip schematically shows the light emission from graphene and radiation spectrum engineering by strong optical interference effect.