A laser medium is the material used in a laser that amplifies light by stimulated emission, determining the laser's wavelength and efficiency. It can be a solid, liquid, gas, or semiconductor, and its properties are crucial for the laser's application in various fields such as medicine, communications, and manufacturing.

Laser Medium

laser medium

amplifies light

Stimulated emission is a process where an incoming photon induces an excited electron to drop to a lower energy level, emitting a second photon with the same phase, frequency, polarization, and direction as the incoming photon. This principle is fundamental to the operation of lasers, where it leads to the amplification of light.

stimulated emission

laser's wavelength

Laser's efficiency

solid

liquid

Semiconductors are materials with electrical conductivity between that of a conductor and an insulator, making them essential for modern electronics. They are the foundation of integrated circuits and devices like transistors, enabling the functionality of computers, smartphones, and other digital technologies.

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