Balanced homodyne detection of second-harmonic generation from isolated subwavelength emitters
Year: 2006
Type: article
Abstract: 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.
Source: Applied Physics Letters
DOI: 10.1063/1.2356375
Institutions: École Normale Supérieure Paris-Saclay, Centre National de la Recherche Scientifique, Laboratoire de Photonique Quantique et Moléculaire, École Centrale Paris, Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion, Université Rennes 1, Université de Rennes, École Polytechnique, Laboratoire de Physique de la Matière Condensée
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2090036416