Generation of Multi-Color Ultimately-short Optical Pulse and Its Application to the-State-of-the-Art Modern Technology

多色终极短光脉冲的产生及其在最先进现代技术中的应用

基本信息

批准号：
13853006
负责人：
IMASAKA Totaro
金额：
$ 72.05万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (S)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2004
项目状态：
已结题

项目摘要

1.Verification of Phase-Locking in the Process of Two-Color Stimulated Raman ScatteringWe observed four rotational Raman lines using a 100-fs laser pulse as an input beam. The output beam had a duration of 30 fs, indicating that the phases are locked each other among those Raman limes. In, addition, we demonstrated another approach for pulse compression of a near-ultraviolet femtosecond pulse by probing coherent molecular motion in the process of transient stimulated Raman scattering induced by a near-infrared femtosecond laser.2.Generation of a Train of Highly-Repetitive Ultrashort PulsesWe observed continuous-wave (CW) high-order rotational Raman lines from ortho-hydrogen using a pressurized high-finesse optical resonator pumped by a CW Ti : Sapphire laser with an output power of 200 mW. We measured the temporal profile of the output beam using a laboratory-made autocorrelator, which is based on two-photon absorption of an electrode in a photomultiplier tube, showing a beat waveform … More consisting of sinusoidal modulation at a frequency of 17 THz. To our knowledge, this is the fastest light-intensity modulator. For this reason, we named it "molecular optic-modulator".3.Generation of a High-Peak-Power Ultrashort Optical PulseWe demonstrated the generation of a 17-fs optical pulse using two cells sequentially-aligned. We also showed that deuterium cooled by liquid nitrogen was useful as a Raman medium for a high-power pump pulse with a duration large than 100 fs.4.Application of Multi-Color Ultrashort Laser to Education and ResearchIn the design curriculum for students in a freshman course, we conducted a practical training for the students to fabricate the multi-color laser display using a rainbow-color laser, referred to as "Rainbow Stars." In addition, we made a contract with a company to provide the patent and to commercialize this multi-color laser system. For scientific application, we examined X-ray spectroscopy and trace analysis of dioxin compounds in the environment based on multiphoton ionization/mass spectrometry (MPI/MS). We reported that this approach (MPI/MS) had a comparable detection limit (〜0.6 pg) to that determined by JIS. Less

1.在两色刺激的拉曼散射过程中，循环循环循环旋转拉曼线，使用100-FS激光脉冲作为输入梁。输出梁的持续时间为30 fs，表明这些相位在拉曼酸橙之间彼此锁定。在此外，我们证明了另一种方法是通过在短暂的frared feytsecount激光器引起的短暂性刺激的拉曼散射过程中探测相干分子运动的脉冲压缩方法。由CW Ti：蓝宝石激光泵送的高finital光学谐振器，输出功率为200 mW。我们使用实验室制造的自相反器测量了输出光束的临时轮廓，该轮胎基于光电层管中电极的两光子滥用，显示了节拍波形……更由17 THz的正弦调制组成。据我们所知，这是最快的光强度调制器。因此，我们将其命名为“分子光学调节器”。3。高峰值功率超静光脉冲的代代证明了使用两个依次对齐的两个单元格产生了17-FS光学脉冲。我们还表明，通过液氮冷却的氘可作为拉曼媒介，用于大约100 fs的持续时间的高功率泵脉冲。4。对新生课程中的学生对学生进行教育和研究的持久培训，以对学生进行务实的培训，以使用彩虹般的彩虹圈来进行彩虹的训练。此外，我们与一家公司签订了合同，以提供专利并将这种多色激光系统商业化。为了进行科学应用，我们检查了基于多光子电离/质谱（MPI/MS）的环境中二恶英化合物的X射线光谱和痕量分析。我们报告说，这种方法（MPI/MS）具有与JIS确定的方法相当的检测极限（〜0.6 pg）。较少的

项目成果

期刊论文数量（91）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Generation of A Sub-20-fs Single Optical Pulse by Four-Wave Raman Mixing Using Two Raman Cells Filled with Molecular Hydrogen

使用两个充满分子氢的拉曼池通过四波拉曼混合生成亚 20 飞秒单光脉冲

DOI：
发表时间：
2004
期刊：
OPTICS LETTERS 29
影响因子：
0
作者：
Kataoka;M. et al.;Y.Kida
通讯作者：
Y.Kida

Generation of Highly-Repetitive Optical Pulses Based on Intra-Cavity Four-Wave Raman Mixing

基于腔内四波拉曼混频的高重复光脉冲生成

DOI：
发表时间：
2001
期刊：
Physical Review Letters 87
影响因子：
0
作者：
M.Tani;T.Sakamoto;S.Mita;S.Sakaguchi;Y.Ishii;T.Ooi;K.Shinzen et al.
通讯作者：
K.Shinzen et al.

Y.Hirakawa, K.Tohnai, T.Imasaka: "Externally Ultra-Short Pulsed Laser Generated bu Four-Wave Raman Mixing in Hydrogen Molecules for Chemical Analysis and Communication Applications"Analytical Sciences. (in press).

Y.Hirakawa、K.Tohnai、T.Imasaka：“用于化学分析和通信应用的氢分子中四波拉曼混合产生的外部超短脉冲激光”分析科学。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

L.L.Losev, Y.Yoshimura, Y.Hirakawa, T.Imasaka: "The Influence of Beam Diffraction on Multifrequency Parameric Raman Generation"Optics Communications. (in press).

L.L.Losev、Y.Yoshimura、Y.Hirakawa、T.Imasaka：“光束衍射对多频参数拉曼生成的影响”光学通信。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Efficient Generation of Rotational Stimulated Raman Emission Arising from the S(0) Transition of Cooled Deuterium in the Visible Region

可见光区冷却氘 S(0) 跃迁产生的旋转受激拉曼发射的高效生成

DOI：
发表时间：
2004
期刊：
OPTICS COMMUNICATIONS 237
影响因子：
0
作者：
A.Sasoh;N.Urabe;S.Kim;I.-S.Jeung;Akira Ito;R.Hatakeyama;石川義孝;M.Kataoka et al.;T.Ooi;H.Otsuka et al.
通讯作者：
H.Otsuka et al.