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Proceedings Paper

Coherent detection of second harmonic generation in nonlinear optics
Author(s): Dominique Chauvat; Loc Le Xuan; François Marquier; Sophie Brasselet; François Treussart; Jean-François Roch
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Paper Abstract

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 beam is retrieved, as a function of the absolute orientation of the nonlinear emitters. Sensitivity of ≈ 1.6 photon per second, in the spatio-temporal mode of the local oscillator, is obtained. This value is high enough to efficiently detect the second-harmonic emission from a single KTiOPO4 crystal of sub-wavelength size, embedded in a thin polymer film.

Paper Details

Date Published: 20 April 2006
PDF: 9 pages
Proc. SPIE 6195, Nanophotonics, 61950Q (20 April 2006); doi: 10.1117/12.667251
Show Author Affiliations
Dominique Chauvat, Lab. de Photonique Quantique et Moléculaire, CNRS, École Normale Supériere de Cachan (France)
Lab. d’Electronique Quantique - Physique des Lasers, CNRS, Univ. Rennes 1 (France)
Loc Le Xuan, Lab. de Photonique Quantique et Moléculaire, CNRS, École Normale Supériere de Cachan (France)
François Marquier, Lab. EM2C, CNRS, Ecole Centrale Paris (France)
Sophie Brasselet, Lab. de Photonique Quantique et Moléculaire, CNRS, École Normale Supériere de Cachan (France)
François Treussart, Lab. de Photonique Quantique et Moléculaire, CNRS, École Normale Supériere de Cachan (France)
Jean-François Roch, Lab. de Photonique Quantique et Moléculaire, CNRS, École Normale Supériere de Cachan (France)


Published in SPIE Proceedings Vol. 6195:
Nanophotonics
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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