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Pulsed homodyne measurements of femtosecond squeezed pulses generated by single-pass parametric deamplification

Jérôme Wenger1, Rosa Tualle-Brouri, Philippe Grangier

  • 1Laboratoire Charles Fabry de l'Institut d'Optique, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8501, F-91403 Orsay, France. jerome.wenger@iota.u-psud.fr

Optics Letters
|June 24, 2004
PubMed

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A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.