Send to

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2009 Jul 15;34(14):2189-91. doi: 10.1364/OL.34.002189.

Mapping the nonlinear optical susceptibility by noncollinear second-harmonic generation.

Author information

Dipartimento di Energetica-Università di Roma La Sapienza, Roma, Italy.


We present a method, based on noncollinear second-harmonic generation, to evaluate the nonzero elements of the nonlinear optical susceptibility. At a fixed incidence angle, the generated signal is investigated by varying the polarization state of both fundamental beams. The resulting polarization charts allows us to verify if Kleinman's symmetry rules can be applied to a given material or to retrieve the absolute value of the nonlinear optical tensor terms, from a reference measurement. Experimental measurements obtained from gallium nitride layers are reported. The proposed method does not require an angular scan and thus is useful when the generated signal is strongly affected by sample rotation.

PubMed Commons home

PubMed Commons


    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Support Center