laser emits in CW mode

См. также в других словарях:

• laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …   Universalium

• Laser pointer — A laser pointer is a portable, pen sized laser designed to be held in the hand, and most commonly used to project a point of light to highlight items of interest during a presentation. Most laser pointers have low enough power that the projected… …   Wikipedia

• Laser engraving — is the practice of using lasers to engrave or mark an object. The technique can be very technical and complex, and often a computer system is used to drive the movements of the laser head. Despite this complexity, very precise and clean… …   Wikipedia

• Laser beam welding — (LBW) is a welding technique used to join multiple pieces of metal through the use of a laser. The beam provides a concentrated heat source, allowing for narrow, deep welds and high welding rates. The process is frequently used in high volume… …   Wikipedia

• Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment …   Wikipedia

• Laser diode — Top: a packaged laser diode shown with a penny for scale. Bottom: the laser diode chip is removed from the above package and placed on the eye of a needle for scale …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Yttrium aluminium garnet — YAG redirects here. For the IATA airport code see Fort Frances Municipal Airport. For the YMCA sponsored program see YMCA Youth and Government. Yttrium aluminium garnet General Category synthetic mineral Chemical formula Y3Al …   Wikipedia

• Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …   Wikipedia

• LIGO — For the Latvian holiday Ligo, see Jāņi.LIGO stands for Laser Interferometer Gravitational Wave Observatory. Cofounded in 1992 by Kip Thorne and Ronald Drever of Caltech and Rainer Weiss of MIT, LIGO is a joint project between scientists at MIT… …   Wikipedia

• Microtome — A microtome used in microscopy. A microtome (from the Greek mikros, meaning small , and temnein, meaning to cut ) is a sectioning instrument that allows for the cutting of extremely thin slices of material, known as sections. Microtomes are an… …   Wikipedia