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physics.optics2009★ 8 cited
Second harmonic generation in surface periodically-poled lithium niobate waveguides: on the role of multiphoton absorption
M. Cherchi, S. Stivala, A. Pasquazi +5
Second harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase-matched by surface periodic-poling. The reduction in conversion e…
physics.optics2005
Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals
Alessia Pasquazi, Alessandro Alberucci, Marco Peccianti +1
The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating ac…