Single KTiOPO4 nanocrystals for nonlinear probing of local optical fields and interaction with a metallic nanostructure

We isolate nonlinear KTiOPO4 (KTP) nanocrystals and study them by second-harmonic generation (SHG) microscopy and atomic force microscopy (AFM). With both polarization analysis and defocused imaging of the emitted second harmonic field, we extract the Euler angles of the crystalline axes of a single...

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Published inCLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference p. 1
Main Authors Le Xuan, L., Slablab, A., Zhou, C., Chauvat, D., De Wilde, Y., Perruchas, S., Tard, C., Gacoin, T., Villeval, P., Roch, J.-F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2009
Subjects
Atomic force microscopy
Nanobioscience
Nanocrystals
Nonlinear optics
Optical films
Optical harmonic generation
Optical imaging
Probes
Surface emitting lasers
Ultrafast optics
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Summary:We isolate nonlinear KTiOPO4 (KTP) nanocrystals and study them by second-harmonic generation (SHG) microscopy and atomic force microscopy (AFM). With both polarization analysis and defocused imaging of the emitted second harmonic field, we extract the Euler angles of the crystalline axes of a single nanocrystal. The nonlinear features and photostability of a single KTP nanocrystal make it a good candidate for a vectorial probe of electromagnetic near-fields and coherent imaging.
ISBN:1424440793
9781424440795
DOI:10.1109/CLEOE-EQEC.2009.5192089