A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
Lasers produce coherent light through a process called stimulated emission. The laser contains a chamber in which atoms of a medium such as a synthetic ruby rod or a gas are excited to a high energy level.
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 covers an extremely limited range of visible, infrared, or ultraviolet wavelengths.
In this article, you'll learn all about the different types of lasers, their different wavelengths and the uses to which we put them (like laser pointers). But first, let's start with the fundamentals of laser technology by explaining the basics of an atom. What's Your Wavelength? How Does a Laser Pointer Work?
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