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Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum

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Iskhakov,  Timur
Optical Technologies, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;
Quantum Radiation, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Chekhova,  Maria V.
Quantum Radiation, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
Chekhova Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Optical Technologies, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Iskhakov, T., Chekhova, M. V., & Leuchs, G. (2009). Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum. PHYSICAL REVIEW LETTERS, 102(18): 183602. doi:10.1103/PhysRevLett.102.183602.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6BE3-2
Abstract
Using a traveling-wave optical parametric amplifier with two orthogonally oriented type-I BBO crystals pumped by picosecond pulses, we generate vertically and horizontally polarized squeezed vacuum states within a broad frequency-angular range. Depending on the phase between these states, fluctuations in one or another Stokes parameter are suppressed below the shot-noise limit. Because of the large number of photon pairs produced, no local oscillator is required, and 3 dB squeezing is observed by means of direct detection.