Laser Laser A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light "coherently". Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial
Laser Focus World also an annual buyer's guide. The magazine is the recipient of the 2011 Folio Awards. Laser Focus World Laser Focus World is a monthly magazine published by PennWell Corporation covering laser, photonics and optoelectronics technologies, applications, and markets. Many professionals in those fields receive it free of charge; it is also possible to subscribe to the magazine. "Laser Focus World" has been published since 1965. It is published on a monthly basis and owned by PennWell Corporation. The headquarters of the magazine is in Tulsa, Oklahoma. Approximately 70,000 subscribers have access to an annual "Lasers and Photonics Marketplace Seminar" and