Coherent Multidimensional Vibrational Spectroscopy of Representative N-Alkanes

Optical multidimensional coherent SPECTROSCOPY

Coherent multidimensional optical spectroscopy.

Multidimensional optical techniques, the focus of this special issue, are analogues of their NMR counterparts; that is, rather than using spin transitions as little spies within a molecule, we use vibrational or optical transitions. Similar to NMR, the spectroscopic states often respond in a very sensitive way to their chemical environment. By modeling the coupling of one of these states to eit...

Magnetic Resonance Analogies in Multidimensional Vibrational Spectroscopy

We survey the principles for the design of multidimensional vibrational spectroscopies that draw upon the analogy with liquid or solid state NMR and EPR spectroscopy. The much faster time-scales and the different energy regime in laser spectroscopy provide additional possibilities that lack magnetic spectroscopy counterparts. We also discuss the notion of through-bond vs through-space couplings...

Surface-Enhanced Impulsive Coherent Vibrational Spectroscopy

Surface-enhanced Raman spectroscopy (SERS) has attracted a lot of attention in molecular sensing because of the remarkable ability of plasmonic metal nanostructures to enhance the weak Raman scattering process. On the other hand, coherent vibrational spectroscopy triggered by impulsive excitation using ultrafast laser pulses provides complete information about the temporal evolution of molecula...

Terahertz vibrational modes induced by heterogeneous nucleation in n-alkanes

0009-2614/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.cplett.2010.05.075 * Corresponding author. E-mail address: [email protected] (D.M. Mittleman) We describe the observation of a broad and strongly temperature-dependent peak in the terahertz absorption spectrum of several linear n-alkanes. On cooling from the liquid into the rotator phase, the absorption is enhanced within a very narr...