Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Stivala, Salvatore"'
Publikováno v:
In Solid State Electronics September 2022 195
Autor:
Pernice, Riccardo *, Sparacino, Laura, Nollo, Giandomenico, Stivala, Salvatore, Busacca, Alessandro, Faes, Luca
Publikováno v:
In Biomedical Signal Processing and Control July 2021 68
Autor:
Stivala, Salvatore, Busacca, Alessandro C., Pasquazi, Alessia, Oliveri, Roberto L., Morandotti, Roberto, Assanto, Gaetano
Publikováno v:
Optics Letters, Vol. 35, Issue 3, pp. 363-365 (2010)
We observe second harmonic generation via random quasi-phase-matching in a 2.0 \mu m periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output profiles exhibit a characteristic pattern stemming from a stochastic
Externí odkaz:
http://arxiv.org/abs/1210.1366
Autor:
Pasquazi, Alessia, Busacca, Alessandro, Stivala, Salvatore, Morandotti, Roberto, Assanto, Gaetano
Publikováno v:
IEEE Photonics J., Vol. 2, pages 18-28 (2010)
We implement a simple and powerful approach to characterize the domain distribution in the bulk of quadratic ferroelectric crystals via far-field second-harmonic spectroscopy. The approach is demonstrated in a lithium tantalate sample with periodic e
Externí odkaz:
http://arxiv.org/abs/1210.1363
Autor:
Stivala, Salvatore, Pasquazi, Alessia, Colace, Lorenzo, Assanto, Gaetano, Busacca, Alessandro C., Cherchi, Matteo, Riva-Sanseverino, Stefano, Cino, Alfonso C., Parisi, Antonino
Publikováno v:
JOSA B, Vol. 24, Issue 7, pp. 1564-1570 (2007)
We carried out second-harmonic generation in quasi-phase-matched \alpha-phase lithium niobate channel waveguides realized by proton exchange and surface periodic poling. Owing to a limited ferroelectric domain depth, we could observe the interplay be
Externí odkaz:
http://arxiv.org/abs/1209.5293
Autor:
Bazzan, Marco, Sada, Cinzia, Argiolas, Nicola, Busacca, Alessandro C., Oliveri, Roberto L., Stivala, Salvatore, Curcio, Luciano, Sanseverino, Stefano Riva
Publikováno v:
J. Appl. Phys. 106, 104121 (2009)
Domain engineering technology in lithium tantalate is a well studied approach for nonlinear optical applications. However, for several cases of interest, the realization of short period structures (< 2 \mu m) is required, which make their characteriz
Externí odkaz:
http://arxiv.org/abs/1209.5298
Autor:
Stivala, Salvatore, Buccheri, Fabrizio, Curcio, Luciano, Oliveri, Roberto L., Busacca, Alessandro C., Assanto, Gaetano
Publikováno v:
Optics Express, Vol. 19, Issue 25, pp. 25780-25785 (2011)
We report on bulk and guided-wave second-harmonic generation via random Quasi-Phase-Matching in Lithium Tantalate. By acquiring the far-field profiles at several wavelengths, we extract statistical information on the distribution of the quadratic non
Externí odkaz:
http://arxiv.org/abs/1209.5282
Autor:
Stivala, Salvatore, Busacca, Alessandro C., Curcio, Luciano, Oliveri, Roberto L., Riva-Sanseverino, Stefano, Assanto, Gaetano
Publikováno v:
Appl. Phys. Lett. 96, 111110 (2010)
We report on backward second-harmonic-generation in bulk periodically poled congruent lithium niobate with a 3.2 microns period. A tunable continuous-wave Ti:sapphire laser allowed us exciting two resonant quasi-phase-matching orders in the backward
Externí odkaz:
http://arxiv.org/abs/1209.4288
Autor:
Cherchi, Matteo, Taormina, Alberto, Busacca, Alessandro C., Oliveri, Roberto L., Bivona, Saverio, Cino, Alfonso C., Stivala, Salvatore, Sanseverino, Stefano Riva, Leone, Claudio
Publikováno v:
IEEE J. Quantum Electron. 46, 368-376 (2010)
We present a detailed analysis and comparison of dielectric waveguides made of CdTe, GaP, GaAs and InP for modal phase matched optical difference frequency generation (DFG) in the terahertz domain. From the form of the DFG equations, we derived the d
Externí odkaz:
http://arxiv.org/abs/0906.3683
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