two-beam

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• Beam dump — A beam dump is a device that absorbs a beam. This may be a beam of photons ( light ) such as a laser beam, or a beam of electrically charged particles.Optical beam dumpsAn optical beam dump is an optical element used to absorb a beam of light.… …   Wikipedia

• Two-photon excitation microscopy — is a fluorescence imaging technique that allows imaging of living tissue up to a very high depth, that is up to about one millimeter. Being a special variant of the multiphoton fluorescence microscope, it uses red shifted excitation light which… …   Wikipedia

• Two-photon absorption — (TPA) is the simultaneous absorption of two photons of identical or different frequencies in order to excite a molecule from one state (usually the ground state) to a higher energy electronic state. The energy difference between the involved… …   Wikipedia

• beam — [bēm] n. [ME < OE, a tree, piece of wood, column; akin to Ger baum, Du boom, tree] 1. Obs. the squared off trunk of a tree 2. a) a long, thick piece of wood, metal, or stone, used in building b) such a piece used as a horizontal support for a… …   English World dictionary

• beam — [n1] length of material used as support axle, bail, balk, bolster, boom, brace, cantilever, column, crossbar, crosspiece, girder, jamb, joist, lath, lintel, pile, piling, pillar, plank, pole, post, prop, rafter, reach, scaffolding, scantling,… …   New thesaurus

• Beam tilt — is used in radio to aim the main lobe of the vertical plane radiation pattern of an antenna below (or above) the horizontal plane.The simplest way is mechanical beam tilt, where the antenna is physically mounted in such a manner as to lower the… …   Wikipedia

• Beam propagation method — (BPM) refers to a computational technique in Electromagnetics, usedto solve the Helmholtz equation under conditions of a time harmonic wave. BPM works under slowly varying envelope approximation, for linear and nonlinear equations.The beam… …   Wikipedia

• Two Casitas Vacation Rentals - Three-Bedrooms - Santa Fe — (Санта Фе,США) Категория отеля: Адрес: PO Box 1829 …   Каталог отелей

• Two Casitas Santa Fe Vacation Rentals — (Санта Фе,США) Категория отеля: 3 звездочный отель Адрес: Diff …   Каталог отелей

• Beam Approach Beacon System — (or BABS) is an automatic RADAR landing system developed in the early 1940 s.It is a responder (or transponder) mounted in a Hillman van and placed at the end of the runway. In some cases fixed sites were installed and by the mid 1950 s Standard… …   Wikipedia

• Beam diameter — The beam diameter or beam width of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be obtained in many… …   Wikipedia