Type i and type II second harmonic generation of conically refracted beams

Alex Turpin, Yurii V. Loiko, Todor K. Kalkandjiev, Jose Trull, Crina Cojocaru, Jordi Mompart

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Resum

Type I and type II second harmonic generation (SHG) of a beam transformed by the conical refraction phenomenon are presented. We show that, for type I, the second harmonic intensity pattern is a light ring with a point of null intensity while, for type II, the light ring possesses two dark regions. Taking into account the different two-photon processes involved in SHG, we have derived analytical expressions for the resulting transverse intensity patterns that are in good agreement with the experimental data. Finally, we have investigated the spatial evolution of the second harmonic signals, showing that they behave as conically refracted beams. © 2013 Optical Society of America.
Idioma originalEnglish
Pàgines (de-a)2484-2486
RevistaOptics Letters
Volum38
DOIs
Estat de la publicacióPublicada - 15 de jul. 2013

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