light-induced grating

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• Electromagnetically induced grating — (EIG) is a physics phenomenon based on light interference (or, more generally, on electromagnetic fields) where an interference pattern is used to build a dynamic spatial diffraction grating in matter. Introduction Electromagnetically induced… …   Wikipedia

• Electromagnetically induced transparency — The effect of EIT on a typical absorption line. A weak probe normally experiences absorption shown in blue. A second coupling beam induces EIT and creates a window in the absorption region (red). This plot is a computer simulation of EIT in an… …   Wikipedia

• Photon induced electric field poling — In physics, photon induced electric field poling is a phenomenon whereby a pattern of local electric field orientations can be encoded in a suitable ferroelectric material, such as perovskite. The resulting encoded material is conceptually… …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

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• Evoked potential — Intervention MeSH D005071 An evoked potential (or evoked response ) is an electrical potential recorded from the nervous system of a human or other animal following presentation of a …   Wikipedia

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• Fluorescence spectroscopy — aka fluorometry or spectrofluorometry, is a type of electromagnetic spectroscopy which analyzes fluorescence from a sample. It involves using a beam of light, usually ultraviolet light, that excites the electrons in molecules of certain compounds …   Wikipedia

• Resonance Raman spectroscopy — Resonance Raman (RR) spectroscopy is a specialized implementation of the more general Raman spectroscopy. Overview As in Raman spectroscopy, RR spectroscopy provides information about the vibrations of molecules, and can also be used for… …   Wikipedia