Coherent multidimensional optical probes for electron correlations and exciton dynamics: from NMR to X-rays.

ABSTRACT: Over the past 15 years, researchers have extended the multidimensional techniques which originated with NMR in the 1970s to infrared and visible coherent spectroscopy. These advances have dramatically enhanced the temporal resolution from the microsecond to the femtosecond regime. NMR spectroscopists have developed principles for the design of pulse sequences that enhance selected spectral features and reveal desired dynamical events. Extending these principles to the optical regime offers numerous opportunities for narrowing the line shapes in specific directions, unraveling weak cross-peaks from otherwise congested spectra, and controlling the interferences between quantum pathways. We can achieve these enhancements by shaping the spectral and temporal profiles of the pulses. Pulse polar

SUBMITTER: Mukamel S 

PROVIDER: S-EPMC2753380 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature