wave amplification

См. также в других словарях:

• Chirped pulse amplification — Diagramatic scheme of chirped pulse amplification. Chirped pulse amplification (CPA) is a technique for amplifying an ultrashort laser pulse up to the petawatt level with the laser pulse being stretched out temporally and spectrally prior to… …   Wikipedia

• Deviancy amplification spiral — (also simply called deviance amplification) is a media hype phenomenon defined by media critics as a cycle of increasing numbers of reports on a category of antisocial behavior or some other undesirable event, leading to a moral panic. The term… …   Wikipedia

• traveling-wave tube — An electron tube in which a stream of electrons interacts continuously or repeatedly with a guided electromagnetic wave, moving substantially in synchronism with it and in such a way that there is a net transfer of energy from the stream to the… …   Aviation dictionary

• Shock wave — Bombshock redirects here. For the Transformers character, see Micromasters#Bombshock. For other uses, see shockwave. Schlieren photograph of an attached shock on a sharp nosed supersonic body. A shock wave (also called shock front or simply shock …   Wikipedia

• Gravitational wave — In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from a moving object or system of objects. Gravitational radiation is the energy transported by these waves. Important… …   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

• Traveling-wave tube — A traveling wave tube (TWT) is an electronic device used to amplify radio frequency signals to high power, usually in an electronic assembly known as a traveling wave tube amplifier (TWTA).The bandwidth of a broadband TWT can be as high as three… …   Wikipedia

• Slow-wave sleep — (SWS), often referred to as deep sleep, consists of stages 3 and 4 of non rapid eye movement sleep, according to the Rechtschaffen Kales (R K) standard of 1968.[1] As of 2008, the American Academy of Sleep Medicine (AASM) has discontinued the use …   Wikipedia

• Light Amplification by Stimulated Emission of Radiation — Dieser Artikel wurde aufgrund von inhaltlichen Mängeln auf der Qualitätssicherungsseite des Portals Physik eingetragen. Dies geschieht, um die Qualität der Artikel aus dem Themengebiet Physik auf ein akzeptables Niveau zu bringen. Dabei werden… …   Deutsch Wikipedia

• traveling-wave tube — noun : an electron tube used for the generation of microwave frequency radiation or for amplification at ultrahigh frequencies whose operation depends on the interaction of a beam of electrons with an electromagnetic wave * * * /trav euh ling… …   Useful english dictionary

• travelling-wave tube — noun A device used in communications for increasing signal power, amplification being produced by interaction between a wave of radio frequency travelling on a wire helix and an electron beam travelling at roughly the same velocity inside the… …   Useful english dictionary