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RefNoEC/1996/29
LevelItem
TitlePusey, Peter Nicholas: certificate of election to the Royal Society
Date1991
DescriptionCitation typed
CitationDistinguished as a pioneer of dynamic light scattering (DLS) from macromolecules and for elucidating the structure and dynamics of concentrated colloidal suspensions. From its inception, Pusey has contributed greatly to the development, underlying theory and applications of DLS. He was among the first to apply photon correlation techniques and, with colleagues, developed the now standard method of cumulant analysis for particle sizing. His recent theory, with W van Megen, of DLS by non-ergodic media has resolved long-standing difficulties and has cleared the way for DLS studies of amorphous solid-like sysems such as polymer gels and glassy colloidal suspensions. With his work on the Brownian motions of strongly interacting particles, Pusey was one of the first to apply microscopic approaches to colloidal suspensions. His recent research has exploited analogies and differences between concentrated suspensions of 'hard-sphere' colloids and atomic materials, to investigate such fundamental phenomena as crystallisation, the glass transition and the formation of ordered binary superlattices. He has also contributed to the broader area of radiation scattering by random media and is a co-discoverer of the K-distributions, now used widely to describe non-Gaussian intensity fluctuations in such diverse phenomena as laser propagation through the turbulent atmosphere and microwave scattering by the sea.
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