| Project/Area Number |
11640520
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | HOKKAIDO UNIVERSITY (2000)
Okazaki National Research Institutes (1999) |
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Principal Investigator |
SATO Shin-ichiro Hokkaido Univ, Grad. School of Eng., Asso. Prof., 大学院・工学研究科, 助教授 (10262601)
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| Co-Investigator(Kenkyū-buntansha) |
渡邊 一雄 岡崎国立共同研究機構, 分子科学研究所, 助手 (90312206)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1999: ¥2,900,000 (Direct Cost: ¥2,900,000)
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| Keywords | dynamics / electron / orbital / Rydberg / quantum / ZEKE / ionization / pulse |
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| Research Abstract |
The dynamics of molecules in very large electron orbitals is of interest since those molecules can be accessible with the zero kinetic energy (ZEKE) electron spectroscopy recently. The very large electron orbital is created by the resonant multi-photon laser excitation of the molecule to the very high-lying Rydberg states with high principal quantum numbers (n>100). The very high-lying Rydberg states is easily ionized with a weak pulsed electric field and can be detected electron multiplier. The lifetimes of the very high-lying Rydberg states were measured to be in the range of tens of microseconds, which are extraordinarily longer than the simple n^3 extrapolation of the lifetimes of the lower lying Rydberg states. This fact requires some dynamics that is unique to the molecules in very large electron orbital. We developed a novel sweep-off-probe time resolved two pulsed field ionization apparatus, and obtained the evidence showing the vibronic coupling between Rydberg electron and ion-core molecular vibrations.
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