Certain molecules, when exposed to laser light, emit bright pulses called Raman light.

When it is again exposed to a laser, the altered molecules emit Raman light, which can be read by a photo diode.

This makes it highly probable that a nearby molecule will emit into the mode of the waveguide.

All of this occurs because they dye molecule must emit into something called a mode, and the available modes are determined by the environment.

They are developing a portable kit in which specially designed molecules emit a light signal when bound to bacteria.

"Excited" by this solar energy, the molecule then emits electrons into the supporting semiconductor.

The molecule shed energy and emitted another photon of the same frequency.

And since the molecules emit feeble electromagnetic signals, the progress of the experiment can be monitored on a computer screen.

Smaller bodies such as asteroids, in which the molecules emitted from the surface escape to space, are not considered to have exospheres.

Even individual molecules with internal temperatures greater than absolute zero also emit black-body radiation from their atoms.