Control of lasing filament arrays in nonlinear liquid media
| Autor: | S. Champeaux, Rachel Nuter, Luc Bergé, Jean-Pierre Wolf, Laurent Guyon, François Courvoisier, Véronique Boutou, Kim M. Hajek, Antoine Vinçotte |
|---|---|
| Přispěvatelé: | Laboratoire de Spectrométrie Ionique et Moléculaire (LASIM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Théorique et Appliquée (DPTA), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Group of Applied Physics [Geneva] (GAP), University of Geneva [Switzerland], Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Université de Genève = University of Geneva (UNIGE) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Diffraction
Materials science Kerr effect Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Nonlinear optics Physics::Optics ddc:500.2 01 natural sciences Two-photon absorption 010309 optics Protein filament Modulational instability Optics Filamentation 0103 physical sciences [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic 010306 general physics business Lasing threshold |
| Zdroj: | Applied Physics B-Laser and Optics Applied Physics B-Laser and Optics, Springer Verlag, 2008, 90 (3-4), pp.383-390. ⟨10.1007/s00340-007-2914-1⟩ Applied Physics. B, Lasers and Optics, Vol. 90, No 3-4 (2008) pp. 383-390 Applied Physics B-Laser and Optics, 2008, 90 (3-4), pp.383-390. ⟨10.1007/s00340-007-2914-1⟩ |
| ISSN: | 0946-2171 |
| Popis: | International audience; Multiple filamentation in a high concentration solution of coumarin 153 in ethanol is studied. It is shown that the output filament pattern may be controlled by placing diffractive elements (circular aperture, edge) in the input beam path. These filaments are formed in highly reproducible arrays along diffraction maxima corresponding to the element used. Experimental results are supported by numerical simulations. They confirm that diffraction-induced intensity gradients swamp modulational instability on the wavefront, forcing filaments to form along diffraction maxima. The effect of two-photon absorption by coumarin molecules on filament patterns is also investigated over a range of dye concentrations. Control results are finally exploited in the production of arrays of localized lasing filaments, which should open novel applications. The resultant lasing sources are mutually coherent and highly repeatable from shot-to-shot, as is shown by their far-field interference patterns. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink