| Project/Area Number |
15340130
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
原子・分子・量子エレクトロニクス・プラズマ
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
KATSURAGAWA Masayuki UEC, Faculty of Electro-Communications, Associate Professor, 電気通信学部, 助教授 (10251711)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥16,200,000 (Direct Cost: ¥16,200,000)
Fiscal Year 2005: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2004: ¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2003: ¥8,200,000 (Direct Cost: ¥8,200,000)
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| Keywords | Raman / Stimulated Raman Scattering / Adiabatic / Modulation / Sideband / Coherence / Hydrogen / Molecule |
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| Research Abstract |
This project aimed realization of a novel ultrashort pulse laser by using a coherently-oscillating high-density molecular-ensemble as an ultrahigh-frequency light-modulator.
We summarize the main points of the achievments for this three-years-project.
1.Realization of ultrahigh frequency light-modulator at both 125THz (vibration) and 10THz (rotation) (This is equivalent to the realization of near-maximal coherence state such that all the molecules coherently oscillate.)
2.Generation of ultrabroad Raman sidebands which extends from near vacuum ultraviolet to infrared with a frequency width of 〜70,000cm^<-1>(〜2,100 PHz)
3.Generation of a train of 10-fs ultrashort pulses at ultrahigh repetition-rate of 10-THz with high stability as an actual light source by controlling the spectral phases of the broad Raman sidebands. This result is quantitatively evaluated based on a well-established pulse measurement technique, second-harmonic-generation autocorrelation.
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