Coherent Spectroscopy

Wolfgang Demtröder

Hebin Li, Bachana Lomsadze, Galan Moody +2 more

Abstract An introduction to multidimensional coherent spectroscopy (MDCS) is provided in this chapter. We start out by introducing MDCS in qualitative terms, as an extension of transient absorption spectroscopy. We proceed to discuss the meaning and utility of coherent spectroscopy more generally. We go on to discuss the specifics of MDCS as a specific form of coherent spectroscopy. Pulse sequences involved in generating MDCS plots are introduced. Finally, we discuss density matrix perturbation theory and double-sided Feynman diagrams, and the role of this formalism in simulating and interpreting MDCS.

Wolfgang Demtröder

Hebin Li, Bachana Lomsadze, Galan Moody +2 more

Abstract Multidimensional coherent spectroscopy (MDCS) of atomic ensembles is discussed in this chapter. Atomic vapors such as potassium and rubidium atomic vapors are used a model system for demonstrating MDCS. The technique of MDCS can also be used to probe many-body dipole-dipole interaction and correlation in atoms by using double-quantum 2D spectroscopy. Multi-quantum 2D spectroscopy can detect many-body correlations associated with coherent states of multiple atoms in atoms.

В. В. Самарцев, Yu. V. Naboĭkin, Nataliya B. Silaeva

A review is given of the papers presented at the Third All-Union Symposium on Optical Echo and Coherent Spectroscopy. The physics of optical transient and superradiant phenomena and the results of applications of these phenomena in spectroscopy were discussed at the Symposium. A new branch of optical spectroscopy is now in existence and it is called coherent spectroscopy. Methods used in this spectroscopy and possible technical applications of these phenomena were discussed in detail at the Symposium.