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Laser Point Light-3 pieces
A Laser Pointer is a small handheld device with a power source (usually a battery) and a diode emitting a very narrow coherent low-powered beam of visible , intended to be used to highlight something of interest by illuminating it with a small bright of colored .
Properties of light are: monochromacity (the same color), coherence (all of the light waves are in phase both spatially and temporally), collimation (all rays are parallel to each other and do not diverge significantly even over long distances).
To explain the process of light amplification in a requires an understanding of the energy transition phenomena in the atoms of its active medium. They include: spontaneous emission,
stimulated emission/absorption and non-radiative decay.
stimulated emission/absorption and non-radiative decay.
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