Physics
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11j5053m&link_type=abstract
New Journal of Physics, Volume 11, Issue 10, pp. 105053 (2009).
Physics
2
Scientific paper
We report a convenient model of second harmonic (SH) spectra resulting from shaped laser fields created in pixilated pulse shaping devices based on a matrix of all possible pair-wise, field interactions. This model is useful in estimating simultaneous two-photon absorption (TPA) and second harmonic generation (SHG) cross sections. A simple geometric interpretation of the model allows for a graphical representation of the SH spectrum as a set of vectors in the complex plane. This interpretation can be used to illustrate the effects of applied phase (and amplitude) shaping on second-order observables and it provides a facile explanation of the spectral focusing mechanism observed in numerous control problems.
Damrauer N. H.
Montgomery M. A.
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