scholarly journals Excited-state Structure and Dynamics of Nitric Oxide probed by Resonant Four-wave Mixing Techniques

1996 ◽  
Vol 49 (2) ◽  
pp. 445 ◽  
Author(s):  
EF McCormack ◽  
ST Pratt ◽  
PM Dehmer ◽  
JL Dehmer

We review the results from two experiments that used resonant four-wave mixing (RFWM) techniques to investigate double-resonance transitions in NO. In the first experiment, laserinduced grating decay curves that reveal quantum beats due to the hyperfine structure of the A 2Σ, υ' = 0 state were observed and interpreted. In the second, multistate interactions between the L 2II1/ 2,3/2, υ = 8 and Q 2II1/ 2,3/2, υ = 0 states were investigated, and new assignments were made. The results highlight the potential of RFWM techniques for probing excited-state physics.

2016 ◽  
Vol 23 (1) ◽  
pp. 132-140 ◽  
Author(s):  
Filippo Bencivenga ◽  
Marco Zangrando ◽  
Cristian Svetina ◽  
Alessandro Abrami ◽  
Andrea Battistoni ◽  
...  

The recent advent of free-electron laser (FEL) sources is driving the scientific community to extend table-top laser research to shorter wavelengths adding elemental selectivity and chemical state specificity. Both a compact setup (mini-TIMER) and a separate instrument (EIS-TIMER) dedicated to four-wave-mixing (FWM) experiments has been designed and constructed, to be operated as a branch of the Elastic and Inelastic Scattering beamline: EIS. The FWM experiments that are planned at EIS-TIMER are based on the transient grating approach, where two crossed FEL pulses create a controlled modulation of the sample excitations while a third time-delayed pulse is used to monitor the dynamics of the excited state. This manuscript describes such experimental facilities, showing the preliminary results of the commissioning of the EIS-TIMER beamline, and discusses original experimental strategies being developed to study the dynamics of matter at the fs–nm time–length scales. In the near future such experimental tools will allow more sophisticated FEL-based FWM applications, that also include the use of multiple and multi-color FEL pulses.


1998 ◽  
Vol 108 (15) ◽  
pp. 6291-6302 ◽  
Author(s):  
Mark J. Fernée ◽  
Peter F. Barker ◽  
Alan E. W. Knight ◽  
Halina Rubinsztein-Dunlop

2003 ◽  
Vol 72 (8) ◽  
pp. 1863-1866 ◽  
Author(s):  
Osamu Arimoto ◽  
Mieko Sakamoto ◽  
Yutaka Imai ◽  
Shunsuke Nakanishi ◽  
Hiroshi Itoh

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