Lasers
Definition
Lasers are devices that produce a narrow, intense beam of coherent light through the process of stimulated emission.
Analogy
Imagine a laser as a super-focused flashlight that emits a concentrated beam of light, like when you use a magnifying glass to focus sunlight into a small point.
Related terms
Stimulated Emission: The process in which an incoming photon triggers the release of additional photons with the same frequency and phase.
Coherent Light: Light waves that have the same frequency and are in phase with each other, resulting in constructive interference.
Optical Resonator: A cavity or structure within a laser that reflects light back and forth to amplify it before it is emitted as a laser beam.
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