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Pré-Publication, Document De Travail Année : 2006

Balanced homodyne detection in second-harmonic generation microscopy

Résumé

We demonstrate the association of two-photon nonlinear microscopy with balanced homodyne detection for investigating second harmonic radiation properties at nanoscale dimensions. Variation of the relative phase between second-harmonic and fundamental beams is retrieved, as a function of the absolute orientation of the nonlinear emitters. Sensitivity down to approximately 3.2 photon/s in the spatio-temporal mode of the local oscillator is obtained. This value is high enough to efficiently detect the coherent second-harmonic emission from a single KTiOPO4 crystal of sub-wavelength size.
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Dates et versions

hal-00022891 , version 1 (15-04-2006)
hal-00022891 , version 2 (20-09-2006)

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Citer

Loc Le Xuan, François Marquier, Dominique Chauvat, Sophie Brasselet, François Treussart, et al.. Balanced homodyne detection in second-harmonic generation microscopy. 2006. ⟨hal-00022891v1⟩

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