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Pattern formation without diffraction matching in optical parametric oscillators with a metamaterial

par Tassin, Philippe;Van Der Sande, Guy ;Veretennicoff, Irina;Kockaert, Pascal ;Tlidi, Mustapha
Référence Optics Express, 17, page (9428)
Publication Publié, 2009

Article révisé par les pairs

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Résumé :

We consider a degenerate optical parametric oscillator containing a left-handed material. We show that the inclusion of a left-handed material layer allows for controlling the strength and sign of the diffraction coefficient at either the pump or the signal frequency. Subsequently, we demonstrate the existence of stable dissipative structures without diffraction matching, i.e., without the usual relationship between the diffraction coefficients of the signal and pump fields. Finally, we investigate the size scaling of these light structures with decreasing diffraction strength.