2013 Fiscal Year Final Research Report
Development and applications of spatial and temporal optimal control simulation with pulse propagation
| Project/Area Number |
23550004
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
OHTSUKI Yukiyoshi 東北大学, 理学(系)研究科(研究院), 准教授 (40203848)
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| Project Period (FY) |
2011 – 2013
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| Keywords | コヒーレント制御 / レーザーパルス / 最適化 / パルス伝播 / 回転波束 / 偏光 / 量子干渉 / 同位体分離 |
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| Research Abstract |
We have developed control schemes that utilize Raman transitions, which can minimize undesirable effects due to absorption by using non-resonant laser pulses. Focusing on the rotational control, which is essential prior to molecular-fixed-frame experiments, we have proposed/developed the polarization control to align molecules in a specified direction, the molecular orientation control highly enhanced by alignment, isotope separation that utilize rotational wave packet motion, and pulse-amplitude/fluence-specified optimal control simulation algorithms. As an application of vibrational Raman transitions, quantum interference signals induced by strong laser pulses are also examined. We developed our own original codes to calculate pulse propagation, and clarified the effectiveness of the isotope separation after propagation when we use non-resonant laser pulses.
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