Defocused imaging of second harmonic generation from a single nanocrystal
| Autor: | Jean-François Roch, Nicolas Sandeau, Chunyuan Zhou, Dominique Chauvat, L. Le Xuan, Sophie Brasselet |
|---|---|
| Přispěvatelé: | Brasselet, Sophie, Institut FRESNEL ( FRESNEL ), Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Photonique Quantique et Moléculaire ( LPQM ), École normale supérieure - Cachan ( ENS Cachan ) -CentraleSupélec-Centre National de la Recherche Scientifique ( CNRS ), Institut d'Alembert ( IDA ), Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Cachan ( ENS Cachan ), Institut FRESNEL (FRESNEL), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Photonique Quantique et Moléculaire (LPQM), École normale supérieure - Cachan (ENS Cachan)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Institut d'Alembert (IDA), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU) |
| Rok vydání: | 2009 |
| Předmět: |
Physics
[SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic business.industry Second-harmonic generation 02 engineering and technology Crystal structure Radiation 021001 nanoscience & nanotechnology Polarization (waves) 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Nonlinear system Dipole Optics Nanocrystal 0103 physical sciences [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic [ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photonic 0210 nano-technology business Excitation ComputingMilieux_MISCELLANEOUS |
| Zdroj: | HAL Optics Express Optics Express, Optical Society of America, 2007, 15 (24), pp.16051-60 Optics Express, 2007, 15 (24), pp.16051-60 Optics Express, Optical Society of America-OSA Publishing, 2007, 15 (24), pp.16051-60 |
| ISSN: | 1094-4087 |
| Popis: | We demonstrate the direct imaging of the second harmonic generation radiation from a single nonlinear nanocrystal using defocused nonlinear microscopy. This technique allows the retrieval of complete information on the 3D orientation of a nanocrystal as well as possible deviations from its purely crystalline nature, in a simple experimental implementation. The obtained images are modeled by calculation of the radiation diagram from a nonlinear dipole that accounts for the excitation beam, the crystal symmetry and the particle size. Experimental demonstrations are performed on Potassium Titanyl Phosphase (KTP) nanocrystals. The shape and structure of the radiation images show a strong dependence on both crystal orientation and field polarization state, as expected by the specific nonlinear coherent coupling between the induced dipole and the excitation field polarization state. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|