stimulated emission

American  

[stim-yuh-layt-id-i-mish-uhn] / ˈstɪm jəˌleɪt ɪd ɪˈmɪʃ ən /

noun

stimulated emissions plural

1. Physics. Also called induced emission. the emission of a photon from an excited atom when an electron falls from a higher to a lower energy level after interacting with an incident photon whose energy equals the difference between the two levels, with the result that the emitted and incident photons have identical energy and emerge in phase and in the same direction, thereby amplifying the radiation. Stimulated emission is used to produce laser beams.

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stimulated emission Scientific  

/ stĭm′yə-lā′tĭd /

1. The emission of electromagnetic radiation in the form of photons of a given frequency, triggered by photons of the same frequency. For example, an excited atom, with an electron in an energy orbit higher than normal, releases a photon of a specific frequency when the electron drops back to a lower energy orbit; if this photon strikes another electron in the same high-energy orbit in another atom, another photon of the same frequency is released. The emitted photons and the triggering photons are always in phase, have the same polarization, and travel in the same direction.

2. Also called induced emission

3. See also population inversion

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Other Word Forms

Derived Forms

• stimulated-emission
  adjective

Inflected Forms

Nouns

• stimulated emissions
  plural

Example Sentences

Or, drink as cold tea to stimulate digestion and the kidneys, relieving fluid retention.

From Salon • Jan. 31, 2024

The pickles come in with crunch, tanginess, and probiotics; the red pepper flakes stimulate digestion and help flush your system.

From Los Angeles Times • Jan. 7, 2017

An undue amount of pepper, mustard, horseradish, pickles, and highly seasoned meat-sauces may stimulate digestion for the time, but they soon impair it.

From A Practical Physiology by Blaisdell, Albert F.

They rouse the appetite, stimulate digestion, and finally form carbonates in combination with the alkalies, thus increasing the alkalinity of the blood.

From The Chemistry of Food and Nutrition by Duncan, A. W.

So far as wine is taken to aid digestion, Blackie, who considers that wine "may even be necessary to stimulate digestion," holds that "healthy young men can never require such a stimulus."

From Study and Stimulants; Or, the Use of Intoxicants and Narcotics in Relation to Intellectual Life by Reade, Alfred Arthur