Sentences with phrase «excited by the electron»

Using tunneling ionization and ultrashort laser pulses, scientists have been able to observe the structure of a molecule and the changes that take place within billionths of a billionth of a second when it is excited by an electron impact.

Hence Mario Merz's attachment to Fibonacci's invention of a numerical system that behaves like self - generating patterns in nature (the breeding of rabbits and the structure of shells, for example) and his fondness for the brilliant gaseous light neon gives off once excited by electrons.

Not exact matches

Instead of relying on light waves emitted by electrons, it would use radiation emitted when the nucleus is excited to a high energy state, and then drops into a lower energy state.

To date, they all work by exciting electrons that are either floating freely or in atoms, prompting the emission of a burst of light.

In particular, if an atom inside a solid such as a silica wafer is hit by an X-ray photon and a hole forms, it's not clear that the excited electron hangs around to form an exciton.

«Superradiance of an ensemble of nuclei excited by a free electron laser.»

In the late 1990s, Arthur Nozik of the National Renewable Energy Laboratory in Golden, Colorado, and the University of Colorado, Boulder, theorized that if the semiconductors were made out of nanoparticles, they could excite multiple electrons with less photon energy, because less of the incoming energy would be sapped by vibrating atoms in the crystalline lattice.

Bond and her collaborators are using metal - coated nanotubes bunched together like a jungle canopy to amplify the signals of both the incident and Raman scattered light by exciting local electron plasmons.

The researchers detected excited electrons (and the holes they left behind) produced by adsorption of chemicals onto the diode's surface.

We initiated the solvent motion by exciting the hydrated electron in the cluster.

A weak UV pulse excited an outer electron to a higher state, followed by a strong infrared pulse creating a field in which the electron escaped from the molecule due to the tunneling effect.

The electrons travel from their initial state to the excited state by two paths rather than one — similar to a forked road leading to the same destination.

When both members of the pair became excited, one of them would normally fall to the lower rung before being struck by an incoming photon, producing no photon along the way and leaving too few excited electrons to make laser light.

Electrons within a target atom are first excited by a photon contained within the pump pulse, which is then followed after a short delay by a second photon in a probe pulse.

In a traditional solar panel, silicon atoms are struck by sunlight and the atoms» outermost electrons absorb energy from some of these wavelengths of sunlight, causing the electrons to get excited.

«It was very satisfying to see such high resolution electron densities by the second day of our experiment, but to then also see such strong signals from the changes in the structure was even more exciting,»

In a semiconductor, electrons can be excited by absorbing laser light.

When excited by incoming energy, an electron may jump to a higher energy level before falling back.

As a result, various elements including phosphorus and sulphur can be directly observed by exciting their inner - shell electrons.

He identified the excited electron states in 15 chromophores, or light - absorbing structures, and provided theoretical chemistry insights on the mechanisms by which these molecules take in the light.

Electrons in such charge - transfer complexes are easy to excite to a higher energy level by light.

canopy is into the sun 24/7 so the reason they don't have to eat is their pulling all of their electrons that are excited by photons uh — in those two ways.

In addition, they revealed that the excited electrons move to the lanthamum titanate, leading to efficient hydrogen production from water by proton reduction.