Time-Resolved Spectroscopy in Complex Liquids An Experimental Perspective [Paperback]

Time-Resolved Spectroscopy in Complex Liquids is intended to introduce the experimental researchers to state-of-the-art techniques in the study of the dynamics of complex liquids. The contributors concentrate on time-resolved optical spectroscopy, which recently produced many relevant results and new information about complex liquids. This is an emerging topic of soft-matter science and this book provides the most up-to-date account of new development.

The investigation of liquid properties is as old as the human desire to observe natural phenomena. The paramount relevance of such state of matter is - vious, spanning from the basic theoretical model of random systems to the more advanced technical applications. Nevertheless the interpretation and - derstanding of liquid properties remains a challenge in materials science. In the liquid state, the potential and kinetic energies are characterized by similarvalues,differentlyfromthegasorsolid/crystalphases.Thisfundamental physical property prevents a description of the liquid structure independently fromitsdynamics.Theintermolecularforcesandmolecularmotionsarestrictly interconnected, producing the peculiar features of liquid phases. In particular when the intermolecular potential is characterized by speci?c features,asanisotropicand/orlong-rangeinteractions,theliquidstateshows- cal dynamic aggregation and structuring phenomena. This is the distinguishing characteristic of complex liquids. Typical examples are the hydrogen-bonded liquids, glass formers, polymers and liquid crystals. Also relatively simple molecular liquids, e.g., CS and benzene, clearly show complex dynamics, 2 evidence of local structuring effects. During the last years, researchers have undertaken a steady effort to improve the knowledge of liquid matter, both from experimental and theoretical points of view. New spectroscopic techniques, based on nonlinear optical phenomena, have been realized and applilC!