0000000000220313
AUTHOR
G Assanto
showing 6 related works from this author
SOLITONI SPAZIALI MEDIANTE INTERAZIONE PARAMETRICA IN CRISTALLI FOTONICI NON LINEARI
2008
We report on spatial solitons via twin-beam second-harmonic-generation in two-dimensional quadratically nonlinear lattices realized by periodic poling in lithium niobate planar waveguides. These simultons can be steered by acting on the fundamental frequency input.
GENERAZIONE DI SECONDA ARMONICA MEDIANTE RANDOM QUASI-PHASE-MATCHING IN TANTALATO DI LITIO POLATO PERIODICAMENTE
2009
We experimentally observed and explained bulk Second Harmonic Generation via Random Quasi-Phase-Matching, derived from a periodically poled Lithium Tantalate sample with a randomly patterned mark-to-space-ratio.
Broadband Second-Harmonic Generation via Random Quasi-Phase-Matching in PPLT
2010
We demonstrated broadband second-harmonic generation via random Quasi-Phase-Matching in periodically poled Lithium Tantalate.
All-optical tuning of a photonic band-gap via near-infrared laser pulses
2008
We present an all-optical tuning at IR wavelength in a novel photonic crystal consisting of a polystyrene opal with gold nanoparticles. The band-gap can be finely tuned with permanent shifts as large as 30 nm irradiating the sample with ps pulses at a low rep-rate in the visible.
Spatial Solitons in 2D Lattices of a Nonlinear Nature
2008
These authors describe their observation of two-color optical solitons in a 2D parametric photonic lattice with hexagonal symmetry in lithium niobate. Their results have enabled wavelength-controlled angular steering and the displacement of self-trapped filaments of light.
PARAMETRIC SELF-TRAPPING OF OPTICAL BEAMS VIA RANDOM QUASI PHASE MATCHING IN LITHIUM TANTALATE WAVEGUIDE
2011
We report on experimental evidence of parametric spatial solitons in a lithium tantalate waveguide with randomized periodic ferroelectric poling. Two-color self-focusing via quadratic cascading overcomes the diffractive nature of both fundamental and frequency-doubled beams.