Details

Autor(en) / Beteiligte

• Le Xuan, L.
• Brasselet, S.
• Treussart, F.
• Roch, J.-F.
• Marquier, F.
• Chauvat, D.
• Perruchas, S.
• Tard, C.
• Gacoin, T.

Titel

Balanced homodyne detection of second-harmonic generation from isolated subwavelength emitters

Ist Teil von

• Applied physics letters, 2006-09, Vol.89 (12)

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2006

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The authors 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 a few photons per second in the spatiotemporal 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 subwavelength size.