All such devices are classified as "lasers" based on the method of producing light by stimulated emission. Lasers are employed where light of the required spatial or temporal coherence can not be …

Laser Physics is an international journal covering the fundamental and applied aspects of laser science. The journal was founded in 1990 on the initiative of Alexander M Prokhorov, Nobel Laureate in Physics.

A laser is device that emits coherent and monochromatic light. Laser light is produced by population inversion and subsequent de-excitation of electrons in a material (solid, liquid, or gas).

Dec 4, 2025 · Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The emission generally …

May 24, 2025 · Though laser physics was born from quantum ideas, the laser itself became a tool for probing even deeper into quantum mechanics. Today, researchers use lasers to explore quantum …

A laser is created when electrons in the atoms in optical materials like glass, crystal, or gas absorb the energy from an electrical current or a light. That extra energy “excites” the electrons enough to move …

Making a laser All laser oscillators (as opposed to amplifiers) have 3 parts: Gain medium – gas, solid state, liquid – what provides the lasing transition.