spontaneous emission

Clearly, the rate of spontaneous emission in free space increases with .

This means that by placing the light source in a special environment, the rate of spontaneous emission can be modified.

For these conditions, coherent processes contribute significantly to the spontaneous emission.

Spontaneous emission in free space depends upon vacuum fluctuations to get started.

But the question of whether these structures can encourage spontaneous emission in specific directions remained open.

Sometimes there are complications-bleeding, spontaneous emissions, that sort of thing."

In other words, spontaneous emission (the mirror image of absorption) would be prevented.

If the rate of spontaneous emission, or any of the other rates are fast, the lifetime is short.

The rate of spontaneous emission depends partly on the environment of a light source.

Thus, the rate of transitions between two stationary states is enhanced beyond that due to spontaneous emission.

For example, the spontaneous emission rate and behaviour of atoms is altered by such a microcavity.

He noted that controlling spontaneous emission is desirable for semiconductor processes.

They used amplified spontaneous emission as a probe to study self healing properties.

The Manager had to exert tremendous control over his spontaneous emissions as he complimented the actors.

Here's how an amplified spontaneous emission source works.

Decay of the excitons results in the production of light through spontaneous emission.

This is in contrast to spontaneous emission which occurs without regard to the ambient electromagnetic field.

An energy level diagram illustrating the process of spontaneous emission is shown below:

One arrives at the following equations, including spontaneous emission:

The lifetime of a spontaneous emission process.

It's a serious problem for John, who's trying to focus a beam in spite of all the spontaneous emission this tachyon noise causes.

The induced emission comes from the pumping procedure and then is added to the spontaneous emission.

Spontaneous emissions of sound are produced by the ears of normal people from time to time for no apparent reason.

For example, spontaneous emissions are merely emissions induced by a "virtual" electromagnetic field.

The emitted radiation, based on amplified spontaneous emission, has relatively low spatial coherence.