Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum

被引：89

作者：

Iskhakov, Timur ^{[1
]}

Chekhova, Maria V. ^{[1
,2
]}

Leuchs, Gerd ^{[2
,3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia

[2] Max Planck Inst Sci Light, D-91058 Erlangen, Germany

[3] Univ Erlangen Nurnberg, D-91058 Erlangen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 18期

关键词：

QUANTUM-NOISE; PARAMETRIC AMPLIFICATION; TWIN BEAMS; LIGHT; STATES; INTERFERENCE; TOMOGRAPHY; CRYSTAL;

D O I：

10.1103/PhysRevLett.102.183602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

共 38 条

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