TWO-PHOTON CORRELATION MEASUREMENTS OF NON-CLASSICAL LIGHT AND ITS APPLICATIONS OF ULTRAFAST SPECTROSCOPY

非经典光的双光子相关测量及其超快光谱应用

• 批准号: 03640344
• 负责人: KUGA Takahiro
• 金额: $ 1.28万
• 依托单位: THE UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03640344/
• 关键词: Parametric Fluorescence; Squeezed Light; Non-linear Optics; Ultrafast Spectroscopy; Two-Photon Intensity Correlation; Intensity Interference; パラメトリック増幅; スクイーズ係数; スワイ-ズ系数測定

We have invcstigated statistical characters of a squeezed pulse train by two-photon coincidenec counting. We have also measured a pulsc duration of a weak picosccond pulscs by using an interferometer and counting technique. The results are listed below.1. We have performed two-photon coincidence counting measurements of a squeezed pulse train from a parametric amplifier pumped by a continuous-wave mode-locked laser. The intensity correlation function at zcro time dclay can determined by measuring the ratio of two types of the coincidences, the one within the same mode-locked pulse and the one among different pulses. lambda single mode analysis of the intensity correlation function g^<(2)> (O) is made to explain the experimental resuits.2. We have developed a new two-photon interference scheme for measuring the coherence time and pulse width of ultrafast pulses. Experiments have been performed with the output pulses of a cw mode-locked dye laser, with results in good agreement with the conventional second-harmonic autocorrclation mcasurement.

本文用双光子符合计数方法研究了压缩脉冲序列的统计特性。我们还用干涉仪和计数技术测量了皮秒级弱脉冲的脉宽。结果如下所示。我们对连续波锁模激光泵浦的参量放大器产生的压缩脉冲序列进行了双光子符合计数测量。通过测量同一锁模脉冲内和不同锁模脉冲间两种符合的比值，可以确定零时刻dclay的强度相关函数。对强度相关函数g^（2）（0）进行了λ单模分析，解释了实验结果.我们发展了一种新的双光子干涉方案，用于测量超快脉冲的相干时间和脉宽。用连续波锁模染料激光器的输出脉冲进行了实验，其结果与常规的二次谐波自相关测量符合得很好。

项目成果

Y.Miyamoto: "Measurement of Ultrafast Optical Pulses with Two-Photon Interferences" Optics Latters. 18. 900-902 (1993)

Y.Miyamoto：“利用双光子干涉测量超快光脉冲”光学后者。

久我 隆弘: "ピコ秒〜フェムト秒領域の分光実験技術" 固体物理. 27. 990-997 (1992)

Takahiro Kuga：“皮秒到飞秒区域的光谱实验技术”固体物理 27. 990-997 (1992)。

Y.Miyamoto: "Ultrafast Optical Pulse Measurement with TwoーPhoton Interference" Intemational Conference on Quantum Electronics.

Y.Miyamoto：“双光子干涉的超快光脉冲测量”量子电子学国际会议。

T.Kuga, T.Hirano, Y.Miyamoto, and M.Matuoka: "Two-Photon Correlation of Squeezed Pulse Train" Optics Communications. (submitted).

T.Kuga、T.Hirano、Y.Miyamoto 和 M.Matuoka：“压缩脉冲序列的双光子相关性”光学通信。

T.Kuga: "Picosecond Linear and Nonlinear Spectroscopies of Excitons and Biexcitons in CuCl" Optical Properties of Solids(World Scientific). 109-135 (1991)

T.Kuga：“CuCl 中激子和双激子的皮秒线性和非线性光谱”固体光学性质（世界科学）。