Surface Second Harmonic Generation(SHG)is a unique and powerful tool for probing surface/interface in ambient *** signal is however generally very weak and limited by a threshold of pump Laser intensity,which could be...
Surface Second Harmonic Generation(SHG)is a unique and powerful tool for probing surface/interface in ambient *** signal is however generally very weak and limited by a threshold of pump Laser intensity,which could be the threshold of Laser damage and/or background signal generated through higher nonlinear *** is particularly problematic if femtosecond pulse is employed because the super-continuum generation appears at intensity well below the damage threshold,and thus hinders its application on surface studies.
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