A set of five gas discharge tubes are arranged such that when they are touched with a Tesla coil, their characteristically colored emission spectra are seen. The Tesla coil can burn your skin on ...

Learn about a new observation of a galaxy emitting ultraviolet light that broke through the early universe's dense fog.

This causes line emission spectra to be produced, as shown below. This is not a continuous spectrum as only light of specific frequencies and specific colours are produced. Different types of ...

When a gas is very hot, it doesn’t emit all wavelengths of light. Hot gases don’t produce a continuous emission spectrum. Black hydrogen absorption lines are at the same wavelength as the ...

Astronomers have identified a bright hydrogen emission from a galaxy in the very early universe. The surprise finding is ...

This work demonstrates a novel method of manipulating the QDs’ optical properties beyond controlling their size, composition ...

provides a light source to photoexcite molecules in the sample holder ... In this example I’ve loaded in two images, a photo of a CFL spectrum and a photo of the emission spectrum of quinine sulfate.

In fact, Henry Round at Marconi Labs noted the emission of light from a semiconductor diode ... In 1929, Losev published detailed measurements of LED spectra and clearly observed their dependence ...

Moreover, they maintained stable green emission purity and a narrow emission spectrum (94 meV ... Framing emission gain ...

Amplified spontaneous emission is a physical phenomenon that entails the amplification of the light spontaneously emitted by ...

When excited, these fluorophores emit light at a longer wavelength ... The STED laser has a wavelength that matches the emission spectrum of the fluorophores. When the STED laser is applied, it ...