excited-state lifetime

См. также в других словарях:

• excited-state lifetime — sužadintosios būsenos gyvavimo trukmė statusas T sritis radioelektronika atitikmenys: angl. excited state lifetime vok. Lebensdauer des angeregten Zustands, f rus. время жизни возбуждённого состояния, n pranc. durée de vie d état excité, f …   Radioelektronikos terminų žodynas

• Excited state — Excitation is an elevation in energy level above an arbitrary baseline energy state. In physics there is a specific technical definition for energy level which is often associated with an atom being excited to an excited state.In quantum… …   Wikipedia

• Fluorescence lifetime imaging — or FLIM is a powerful tool for producing an image based on the differences in the exponential decay rate of the fluorescence from a fluorescent sample. It can be used as an imaging technique in confocal microscopy, Two photon excitation… …   Wikipedia

• metastable state — Excited state (see excitation) of an atom, nucleus, or other system that has a longer lifetime than the ordinary excited states and generally has a shorter lifetime than the ground state. It can be considered a temporary energy trap or a somewhat …   Universalium

• metastable state — 1. an excited state with an unusually long lifetime, ranging from 10−6 second to several minutes. 2. an intermediate state between the ground and excited states, requiring additional energy before decay to the ground state can occur …   Medical dictionary

• luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… …   Universalium

• Fluorescence — Fluorescent minerals emit visible light when exposed to ultraviolet light Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength.[1] It is a form of luminescence.… …   Wikipedia

• Zero-phonon line and phonon sideband — The zero phonon line and the phonon sideband jointly constitute the line shape of individual light absorbing and emitting molecules (chromophores) embedded into a transparent solid matrix. When the host matrix contains many chromophores, each… …   Wikipedia

• Förster resonance energy transfer — (abbreviated FRET), also known as Fluoresence resonance energy transfer or resonance energy transfer (RET), describes an energy transfer mechanism between two chromophores. A donor chromophore in its excited state can transfer energy by a… …   Wikipedia

• Indirect DNA damage — occurs when a UV photon is absorbed in the human skin by a chromophore that does not have the ability to convert the energy into harmless heat very quickly. Molecules which do not have this ability have a long lived excited state. This long… …   Wikipedia

• Photoprotection — The term Photoprotection designates the mechanisms that nature has developed to minimize the damages that the human body suffers when exposed to UV irradiation. These damages are mostly occurring in the skin, but the rest of the body (especially… …   Wikipedia