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pump photon

См. также в других словарях:

  • Optical parametric oscillator — Infrared optical parametric oscillator An optical parametric oscillator (OPO) is a parametric oscillator which oscillates at optical frequencies. It converts an input laser wave (called pump ) into two output waves of lower frequency (ωs,ωi) by… …   Wikipedia

  • Quantum defect — The term quantum defect is highly ambiguous. Various meanings are discussed below.Quantum defect in laser scienceIn laser science, the term quantum defect refers to the fact that the energy of a pump photon is generally higher than that of an… …   Wikipedia

  • Energy transfer upconversion — or ETU is a physical principle (most commonly encountered in solid state laser physics) that involves the excitation of a laser active ion to a level above that which would be achieved by simple absorption of a pump photon, the required… …   Wikipedia

  • Diode-pumped solid-state laser — A frequency doubled green laser pointer, showing internal construction. Cells and electronics lead to a laser head module (see lower diagram) This contains a powerful 808 nm IR diode laser that pumps a Nd:YVO4 laser crystal, that in turn outputs… …   Wikipedia

  • Photonics Encyclopedy — or RP Photonics Encyclopedy is website that promotes the consulting service for the Laser and Photonics Industry belobging to Dr.R.Paschotta [http://www.rp photonics.com , URL of the encyclopedy.] . The declared Open Access allows only reading,… …   Wikipedia

  • Raman amplification — (pronounced /rʌmɑn/) is based on the Stimulated Raman Scattering (SRS) phenomenon, when a lower frequency signal photon induces the inelastic scattering of a higher frequency pump photon in an optical medium in the nonlinear regime. As a result… …   Wikipedia

  • Population inversion — In physics, specifically statistical mechanics, a population inversion occurs when a system (such as a group of atoms or molecules) exists in state with more members in an excited state than in lower energy states. The concept is of fundamental… …   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

  • Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… …   Wikipedia

  • Light-dependent reactions — of photosynthesis at the thylakoid membrane See also: Light independent reactions The light dependent reactions , or light reactions, are the first stage of photosynthesis, the process by which plants capture and store energy from sunlight. In… …   Wikipedia

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

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