In a similar process, the electron bombardment of the metal both extracts and excites electrons inside the metal.

Light energy that has been absorbed by a leaf will excite electrons in chlorophyll molecules.

In every explosion, the heat generated excites electrons to higher energy levels.

When placed in the sun, photons of the sunlight can excite electrons on the p-type side of the semiconductor, a process known as photoexcitation.

Heating a semiconductor can excite electrons into conduction states, but it is more practical to increase conductivity by adding impurities to the crystal.

It happens when UV light excites electrons in certain substances.

When sunlight (photons) strike PV cells, they excite electrons and allow them to flow, creating an electrical current.

The upper part is exposed to an intense light beam which excites electrons in the material that, in turn, releases phonons.

They exhibit absorption lines at well defined frequencies that are correlated with the energies required to excite electrons in various elements from one level to another.

The energy from the absorbed light excites electrons to higher energy states, in which their magnetic properties are different.