A Laser Must Be Pumped to Achieve

question 64

Multiple Choice

A laser must be pumped to achieve:

• A)a metastable state
• B)fast response
• C)stimulated emission
• D)population inversion
• E)the same wavelength for all photons

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Definitions:

Absolute Threshold

The minimum stimulus intensity required to be detectable by the senses.

Stimulus Intensity

The magnitude or strength of a stimulus, which can affect the perception and response of the sensory system to that stimulus.

Criterion

A standard or principle by which something is judged or recognized.

Noise Level

The intensity of unwanted or disturbing sounds in a particular environment, often measured in decibels.