Generation of Multi-Color Ultimately-short Optical Pulse and Its Application to the-State-of-the-Art Modern Technology
Generation of Multi-Color Ultimately-short Optical Pulse and Its Application to the-State-of-the-Art Modern Technology
批准号:
13853006
负责人:
IMASAKA Totaro
金额:
$72.05万
依托单位:
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
项目状态:
已结题
起止时间:
2001 至 2004
中文摘要
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英文摘要
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
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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。
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发表时间:
期刊:
影响因子:
--
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。
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作者:
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通讯作者:
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:
--
作者:
[Kataoka, M. et al., Y.Kida]
通讯作者:
Y.Kida
Self-compression of a femtosecond pulse due to Raman coherence of rotational motion
由于旋转运动的拉曼相干性而导致飞秒脉冲的自压缩
DOI:
--
发表时间:
2004
期刊:
Physical Review A 70
影响因子:
--
作者:
[Shin-ichi Zaitsu, Yuichiro Kida, Totaro Imasaka]
通讯作者:
Totaro Imasaka
Rainbow Stars -A Laser Display Twinkling in Rainbow Colors - (in Japanese)
Rainbow Stars - 闪烁彩虹色的激光显示屏 - (日语)
DOI:
--
发表时间:
2003
期刊:
INTRODUCTION OF THE RESEARCH IN KYUSHU UNIVERSITY
影响因子:
--
作者:
[FUJIOKA, Hiromichi, KITA Yasuyuki et al., T.Imasaka]
通讯作者:
T.Imasaka
共 61 条
Laser Ionization Mass Spectrometry Using an Ultrashort Optical Pulse in the Vacuum Ultraviolet Region
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批准号:26220806
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项目类别:Grant-in-Aid for Scientific Research (S)
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资助金额:$124.88万
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财政年份:2014
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负责人:IMASAKA Totaro
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依托单位:
Development of a method for evaluation of small particles and cells with a high accuracy based on use of a Laguerre-Gaussian beam
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批准号:24655066
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项目类别:Grant-in-Aid for Challenging Exploratory Research
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资助金额:$2.58万
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财政年份:2012
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负责人:IMASAKA Totaro
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依托单位:
Development of a Mass Spectrometer based on Wavelength-Tunable Femtosecond Laser Source and Its Application to Scientific Instrumentation
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批准号:23245017
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$32.95万
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财政年份:2011
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负责人:IMASAKA Totaro
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依托单位:
Generation of Multicolor and Ultrashort pulse laser and development of its applications
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批准号:20245018
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$30.45万
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财政年份:2008
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负责人:IMASAKA Totaro
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依托单位:
Generation of an ultimate ultrashort pulse and development of its applications
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批准号:17205010
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$31.87万
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财政年份:2005
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负责人:IMASAKA Totaro
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依托单位:
ON-SITE REAL-TIME MONITORING OF DIOXINS AND RELATED COMPOUNDS
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批准号:10355033
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项目类别:Grant-in-Aid for Scientific Research (A).
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资助金额:$19.65万
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财政年份:1998
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负责人:IMASAKA Totaro
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依托单位:
FUNDAMENTAL STUDY AND APPLICATION OF OPTICAL CHROMATOGRAPHY - TRACE ANALYSIS OF BIOACTIVE SUBSTANCES AND PRECISE DETERMINATION OF MICROORGANISM'S POWER
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批准号:09450310
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$9.15万
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财政年份:1997
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负责人:IMASAKA Totaro
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依托单位:
LASER ABLATION/SUPERSONIC BEAM/MULTIPHOTON IONIZATION/MASS SPECTROMETRY OF CHEMICAL SPECIES RESULTING FROM BIOLOGICAL AND SYNTHETIC POLYMERS
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批准号:06453110
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$4.61万
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财政年份:1994
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负责人:IMASAKA Totaro
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依托单位:
GENERATION OF MULTIFREQUENCY/ULTRASHORT OPTICAL PULSES BASED ON TWO COLOR STIMULATED RAMAN EFFECT AND ITS APPLICATION TO ANALYTICAL CHEMISTRY
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批准号:06555255
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$9.98万
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财政年份:1994
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负责人:IMASAKA Totaro
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依托单位:
Studies on New Spectrometric Light Source -Rainbow Stars-
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批准号:01850171
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项目类别:Grant-in-Aid for Developmental Scientific Research
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资助金额:$10.5万
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财政年份:1989
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负责人:IMASAKA Totaro
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依托单位:
Trace Analysis of Biochemical Substances by Near-Infrared Semiconductor Laser Fluorimetry
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批准号:62550549
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.22万
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财政年份:1987
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负责人:IMASAKA Totaro
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依托单位:
Ultratrace Analysis Using Semiconductor Laser as an Exciting Source
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批准号:60550539
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.41万
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财政年份:1985
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负责人:IMASAKA Totaro
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依托单位:
海外基金