Noncollinear type-II second-harmonic generation in a Al(0.3)Ga(0.7)As/Al2O3 one-dimensional photonic crystal

Bosco, A.; Centini, Marco; Sciscioe, L.; Sibili, C.; Fazio, E.; Bertolotti, M.; Fiore, Andrea; Convertino, Annalisa; Cerri, Luciana; Scalora, Michael

doi:10.1063/1.1713039

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…In the early 1960s, SHG [18] and PDC [19] were well studied, both in their experimental [20] and theoretical aspects. Recently, the discovery of photonics structures [21] and new optical materials [22] has yielded the increase in the efficiencies of nonlinear processes and stimulated technical research.…”

Section: Boolean Logics By Parametric Processesmentioning

confidence: 99%

Logic Functions, Devices, and Circuits Based on Parametric Nonlinear Processes

Ceipidor

Bosco

Fazio

2008

J. Lightwave Technol.

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Second-harmonic generation and parametric downconversion processes have been studied as the basis of all-optical logic gates. All possibilities that are obtainable with both the low and high conversion efficiencies of such processes have been analyzed here. XOR and AND gates are also experimentally proven by using 1-ps pulses at 800 nm within a -BaB 2 O 4 crystal, reaching conversion efficiencies of as high as 80%. Based on these phenomena, complex algebraic operations are proposed for performing several different logic functionalities particularly concerning network switching and arithmetic calculation.

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Section: Boolean Logics By Parametric Processesmentioning

confidence: 99%

Logic Functions, Devices, and Circuits Based on Parametric Nonlinear Processes

Ceipidor

Bosco

Fazio

2008

J. Lightwave Technol.

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“…Consecutively, experimental demonstrations of enhanced SHG have been performed inside GaAs planar PhC. 2,3,4 In this work, we report on the experimental demonstration of a giant SHG processus inside a GaN PhC slab. GaN-based structures have already proven a massive impact on photonics and optoelectronics.…”

Section: Introductionmentioning

confidence: 98%

Second harmonic generation in GaN-based photonic crystals for single molecule investigations

Coquillat

Torres

d'Yerville

et al. 2012

Proceedings of SPIE

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III-Nitride semiconductors are promising nonlinear materials for optical wavelength conversion. However second harmonic generation in bulk GaN is weak because GaN is strongly dispersive. We show that appropriate photonic crystal patterning in GaN helps to overcome dispersion and provides quasi-phase matching conditions, resulting in substantially increased conversion efficiency obtained in a flexible manner. Enhancement factors of more than five orders of magnitude can be achieved. Use of photonic crystals makes it possible to reduce the effective observation volume, thereby opening new opportunities such as the study of single-molecule dynamics, even in high concentration solutions. We have demonstrated sharp enhancement of the fluorescence of single molecules immobilized on the surface of a GaN photonic crysta,l when the molecules are excited via the resonant second harmonic generation process.

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