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Three and Four-Mode...
Three and Four-Modes Parametric Processes in Hexagonally Poled Nonlinear Photonic Crystals
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- Brambilla, E. (författare)
- Univ Insubria, Dept Sci & High Technol, Via Valleggio 11, I-22100 Como, Italy.
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- Jedrkiewicz, O. (författare)
- CNR, Ist Foton & Nanotecnol, Udr Como, Via Valleggio 11, I-22100 Como, Italy.
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- Gallo, Katia, 1972- (författare)
- KTH,Kvant- och biofotonik,Nonlinear and Quantum Photonics
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- Tamosauskas, G. (författare)
- Vilnius Univ, Dept Quantum Elect, Sauletekio 10, LT-10223 Vilnius, Lithuania.
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- Gatti, A. (författare)
- CNR, Ist Foton & Nanotecnol, Udr Como, Via Valleggio 11, I-22100 Como, Italy.
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Univ Insubria, Dept Sci & High Technol, Via Valleggio 11, I-22100 Como, Italy CNR, Ist Foton & Nanotecnol, Udr Como, Via Valleggio 11, I-22100 Como, Italy. (creator_code:org_t)
- INT FREQUENCY SENSOR ASSOC-IFSA, 2018
- 2018
- Engelska.
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Ingår i: OPTICS, PHOTONICS AND LASERS. - : INT FREQUENCY SENSOR ASSOC-IFSA. ; , s. 176-178
- Relaterad länk:
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http://www.sensorspo...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We investigate the properties of the field emitted through parametric down-conversion (PDC) in a nonlinear photonics crystal (NPC) with a hexagonal poling pattern, both from a theoretical point of view and with an experiment performed at the University of Insubria. Considering the high gain regime of PDC, we demonstrate the existence of concurrent PDC processes mediated by two noncollinear poling vectors which are coherently coupled and reciprocally stimulated. We find that these non-standard 3-mode and 4-mode interaction processes undergo a substantial enhancement of the parametric gain with respect to the usual 2-mode PDC, and give rise to hot spots order of magnitudes brighter than standard 2-mode fluorescence which have been observed in the source far field. We performed a complete characterization of the source spectral-angular emission, finding a very good agreement between the experiment and the theoretical predictions.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- Nonlinear optics
- Nonlinear photonics crystals
- Parametric down-conversion
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)