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beam expander

См. также в других словарях:

  • Dye laser — Close up of a table top dye laser based on Rhodamine 6G, emitting at 580 nm (yellow orange). The emitted laser beam is visible as faint yellow lines. The orange dye solution enters the laser from the left, and is pumped by a 514 nm (blue green)… …   Wikipedia

  • Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …   Wikipedia

  • Multiple-prism dispersion theory — The first description of multiple prism arrays, and multiple prism dispersion, was given by Newton in his book Opticks.[1] Prism pair expanders were introduced by Brewster in 1813.[2] A modern mathematical description of the single prism… …   Wikipedia

  • Zoom lens — Nikkor 28 200 mm zoom lens, extended to 200 mm at left and collapsed to 28 mm focal length at right A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed… …   Wikipedia

  • Multiple-prism grating laser oscillator — Multiple prism grating laser oscillators,[1] or MPG laser oscillators, use multiple prism beam expansion to illuminate a diffraction grating mounted either in Littrow configuration or grazing incidence configuration. Originally, these narrow… …   Wikipedia

  • Isaac Newton — Sir Isaac Newton …   Wikipedia

  • Prism compressor — A prism compressor is an optical device used to shorten the duration of a positively chirped ultrashort laser pulse by giving different wavelength components a different time delay. It typically consists of two prisms and a mirror. Figure 1 shows …   Wikipedia

  • N-slit interferometric equation — Quantum mechanics was first applied to optics, and interference in particular, by Paul Dirac.[1] Feynman, in his lectures, uses Dirac’s notation to describe thought experiments on double slit interference of electrons.[2] Feynman’s approach was… …   Wikipedia

  • Breast reconstruction — is the rebuilding of a breast, usually in women. It involves using autologous tissue or prosthetic material to construct a natural looking breast. Often this includes the reformation of a natural looking areola and nipple. This procedure involves …   Wikipedia

  • MagBeam — is the name given to an ion propulsion system for space travel initially proposed by Professor Robert Winglee of the Earth and Space Sciences Department at the University of Washington for the October 2004 meeting of the NIAC.[1] MagBeam is… …   Wikipedia

  • Magnetic sail — A magnetic sail or magsail is a proposed method of spacecraft propulsion which would use a static magnetic field to deflect charged particles radiated by the Sun as a plasma wind, and thus impart momentum to accelerate the spacecraft.[1][2] A… …   Wikipedia

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