Spectral Simplification of the NH Spectrum by Intermediate Level Labeling

 

 

a) The DFWM spectrum of the Q-branch region in the (0-0) band of the A-X electronic transition displays a congested spectrum exhibiting a series of overlapping transitions; 

 

 

b) simplified two-color RFWM spectrum by tuning the PUMP laser to the Q1(5) transition in the (1-0) band and scanning the frequency of the DUMP laser

 

 

simpl-pict