Laser devices use light to store, transfer, or print images and text; they are also used in a wide range of other applications, including surgery and weaponry. The coherent radiation of the laser gives it special strength. The laser (Light...

A device that uses radiating properties of atoms or molecules to generate light of one or more discrete wavelengths. All waves are polarized, aligned and matching in phase. Lasing action can occur from ultraviolet to infrared wavelengths. The eye and,...

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It is said that necessity is the mother of invention. This adage says volumes about the early development of the laser. During World War II, U.S. military and civilian scientists searched frantically for improved radar. While these researchers met...

A laser is an electronic-optical device that produces coherent radiation. The term "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation.[1][2] A typical laser emits light in a narrow, low-divergence beam and with a...

Light amplification by stimulate envision of radiations Inspirado en los autores: ROBERT SIGNORE y PEDRO PUIGDOMENECH, de la Enciclopedia Universitas de Salvat Editores. Siendo rayo de luz amplificado, el LASER nace de fisica función la de emitir un haz estimulado...

Hair removal, which has been the purview of the $1 billion electrolysis industry, is going high tech. Recently two Massachusetts laser manufacturers said they have gained government clearance to market hair removal systems primarily to dermatologists and plastic surgeons. Candela Corp. of...

People who shine laser pointers at airplanes could face up to five years in prison under legislation approved Tuesday by the House.The use of cheap, hand-held laser pens "presents an imminent threat to aviation security and passenger safety," said House Judiciary Committee Chairman John Conyers,...

The days of peeling pesky stickers off apples and tomatoes may soon be over. A Georgia company is seeking federal approval for a laser that etches indelible but edible labels onto the skins of fruits and vegetables.The laser device could tag onions, cucumbers, kiwis, pears...

A history and overview of the laser, a device that produces amplified coherent light. The laser's many practical uses in today's society range from CD players, scanners, and printers to surgical instruments and military missile defense.