Polarization-resolved second harmonic generation from LiNbO3 powders
| Autor: | Pierre-François Brevet, Jorge-Alejandro Reyes-Esqueda, Zacharie Behel, Christian Jonin, Emmanuel Benichou, Oswaldo Sánchez-Dena, E. Salmon |
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| Přispěvatelé: | Institut Lumière Matière [Villeurbanne] (ILM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Universidad Autónoma de Ciudad Juárez (UACJ), Optique non linéaire et interfaces (ONLI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional Autónoma de México (UNAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Photon
Materials science Harmonic intensity Lithium niobate Physics::Optics 02 engineering and technology 010402 general chemistry 01 natural sciences Inorganic Chemistry chemistry.chemical_compound [SPI]Engineering Sciences [physics] [CHIM]Chemical Sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry Ballistic photon Spectroscopy ComputingMilieux_MISCELLANEOUS [PHYS]Physics [physics] Scattering Organic Chemistry Second-harmonic generation Nonlinear optics 021001 nanoscience & nanotechnology Polarization (waves) Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry Atomic physics 0210 nano-technology |
| Zdroj: | Optical Materials Optical Materials, Elsevier, 2020, 107, pp.110169. ⟨10.1016/j.optmat.2020.110169⟩ |
| ISSN: | 0925-3467 |
| Popis: | International audience; We report a polarization-resolved analysis of the second harmonic intensity collected in retro-reflection from a Lithium Niobate microcrystals powder. Depth intensity profiles exhibit first an increase due to the beam focus entering the powder then a decrease due to multiple scattering. With a polarization analysis performed at selected depths, we show that there is a competition between ballistic and multiply scattered photons. The contribution from the multiply scattered photons dominates at all depths whereas, at the maximum of the intensity depth profiles, the contribution of the ballistic photons is at its maximum and enhanced due to collection efficiency. This latter contribution from the ballistic photons is clearly observed through distortions in the polarization-resolved plots. |
| Databáze: | OpenAIRE |
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