The Behaviour of χ(2) Grating Encoding Function |
| P. Chmela Institute of Physical Engineering, Technical University of Brno, Technická 2, 61669 Brno, Czech Republic |
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| A new phenomenological model of self-organized second-harmonic generation is proposed describing the photoinduced χ(2) grating formation as a cumulative third-order nonlinearity via a complex χ(2) encoding function being dependent upon the light intensities of fundamental and second-harmonic writing radiations. The theoretical results attained are confronted with recent experimental measurements by Lambelet and Feinberg and the χ(2) encoding function is constructed for this special case. |
| DOI: 10.12693/APhysPolA.95.735 PACS numbers: 42.65.-k |