- flash photolysis
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Chem.the study of photochemical reaction mechanisms in gases by analyzing spectroscopically the reaction products in a gas mixture irradiated with a powerful light flash.[1945-50]
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Universalium. 2010.
flash photolysis
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Flash photolysis — is a pump probe laboratory technique, in which a sample is firstly excited by a strong pulse (called pump pulse) of light from a laser of nanosecond, picosecond, or femtosecond pulse width or by a short pulse light source such as a flash lamp.… … Wikipedia
flash photolysis — noun : the process of decomposing a chemical with an intense flash of light and observing spectroscopically the transient molecular fragments produced … Useful english dictionary
photolysis — photolytic /foht l it ik/, adj. /foh tol euh sis/, n. the chemical decomposition of materials under the influence of light. [1910 15; PHOTO + LYSIS] * * * Breakdown of molecules into smaller units via absorption of light. Flash photolysis, an… … Universalium
flashphotolysis — flash photolysis n. A method of investigating fast photochemical reactions in gases in which a gas is exposed to very brief, intense flashes of light and the resulting products are analyzed spectroscopically. * * * … Universalium
photochemical reaction — Chemical reaction initiated by absorption of energy in the form of visible (light), ultraviolet, or infrared radiation. Primary photochemical processes occur as an immediate result, and secondary processes may follow. The most important example… … Universalium
Photodissociation — Photodissociation, photolysis, or photodecomposition is a chemical reaction in which a chemical compound is broken down by photons. Photodissociation is not limited to visible light, but to have enough energy to break up a molecule, the photon is … Wikipedia
Radiation chemistry — is a subdivision of nuclear chemistry which is the study of the chemical effects of radiation on matter; this is very different from radiochemistry as no radioactivity needs to be present in the material which is being chemically changed by the… … Wikipedia
chemical kinetics — Introduction the branch of physical chemistry (chemistry) that is concerned with understanding the rates of chemical reactions (chemical reaction). It is to be contrasted with thermodynamics, which deals with the direction in which a… … Universalium
relaxation phenomenon — ▪ physics and chemistry Introduction in physics and chemistry, an effect related to the delay between the application of an external stress to a system that is, to an aggregation of matter and its response. It may occur in nuclear, atomic,… … Universalium
Porter , George, Baron — (1920–) British chemist Born at Stainforth in Yorkshire, Porter was educated at the universities of Leeds and Cambridge, where he obtained his PhD. After working on radar during World War II, he returned to Cambridge until, in 1955, he was… … Scientists
