Raman spectroscopy stimulated

Stimulated Raman spectroscopy is experimentally different from normal Raman spectroscopy in that the scattering is observed in the forward direction, emerging from the sample in the same direction as that of the emerging exciting radiation, or at a very small angle to it. 

In the stimulated Raman effect it is only the vibration that gives the most intense Raman scattering that is involved this is the case for Vj in benzene. 

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Temkin S. I., Thuet J. M., Bonamy L., Bonamy J., Robert D. Angular momentum and rotational energy relaxation in N2-N2 collisions calculated from coherent and stimulated Raman spectroscopy data,... 

Y. Matsuda, M. Hachiya, A. Fujii, and N. Mikami, Stimulated Raman spectroscopy combined with vacuum ultraviolet photoionization Application to jet cooled methanol clusters as a new vibrational spectroscopic method for size selected species in the gas phase. Chem. Phys. Lett. 442, 217 219 (2007). 

Figure 2.5 Schematics of the concepts for (a) ionization-loss stimulated Raman spectroscopy (ILSRS), where resonant two photon ionization of the molecular parent, follows the depletion of ground state reactant species as a result of SRS and (b) VMP, where preexcited molecules are dissociated and the ensuing H photofragments are probed by (2 -I-1) resonantly enhanced multiphoton ionization. Reproduced with permission from Ref. [86]. Copyright (2009) AIP Publishing LLC.

Figure 3-41 (a) Experimental setup for stimulated Raman spectroscopy, (b) a diagram showing the stimulated Raman spectrum of benzene, and (c) anti-Stokes rings of stimulated Raman spectrum of benzene. (Reproduced with permission from Ref. 104.)... 

Figure 3.6-5 Energy-level diagram illustrating the two excitation steps of Ionization Detected Stimulated Raman Spectroscopy (IDSRS).

S Ionization detected stimulated Raman spectroscopy (IDSRS)... 

The interacting u and 1/3 bands of natural silane (Lavorel et ah, 1990 Millot et ah, 1990 Lavorel et ah, 1993) and of stannane " SnH4 (Tabyaoui et ah, 1991) have been measured by high resolution infrared and stimulated Raman spectroscopy. All these results were compiled in the T.D.S. data bank (Tomsk-Dijon Spectroscopy project) and were incorporated into a comprehensive model for the rovibrational spectra of methane and other spherical top molecules (Babikov et ah, 1993 Champion et ah, 1992). 

The methods of nonlinear Raman spectroscopy, i. e. spontaneous hyper Raman scattering (based on the hyperpolarizability) and coherent nonlinear Raman scattering (based on the third-order-nonlinear susceptibilities) are discussed in detail in Sec. 3.6.1. In Sec. 3.6.2 the instrumentation needed for these types of nonlinear spectroscopy is described. In this section we present some selected, typical examples of hyper Raman scattering (Sec. 6.1.4.1), coherent anti-Stokes Raman. scattering (Sec. 6.1.4.2), stimulated Raman gain and inverse Raman spectroscopy (Sec. 6.1.4.3), photoacoustic Raman spectroscopy (Sec. 6.1.4.4) and ionization detected stimulated Raman spectroscopy (Sec. 6.1.4.5). 

Kukura P, McCamant DW, Mathies RA (2007) Femtosecond stimulated Raman spectroscopy. Annu Rev Phys Chem 58 461 88... 

Dasgupta J, Frontiera RR, Taylor KC, Lagarias JC, Mathies RA (2009) Ultrafast excited-state isomerization in phytochrome revealed by femtosecond stimulated Raman spectroscopy. Proc Nad Acad Sci USA 106 1784-1789... 

Kukura, R, Yoon, S., Mathies, R. A., Femtosecond Stimulated Raman Spectroscopy, Anal. Chem. 2006, 78, 5952 5959. 

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