Japan STA Program: Quenching of Gaseous Fluroescence by Large Magnetic Fields and Magnetic Field Effects on Reaction Products After Excitation

日本STA项目：大磁场猝灭气体荧光及激发后磁场对反应产物的影响

• 批准号: 9602496
• 负责人: Wade Sisk
• 金额: $ 0.69万
• 依托单位: NC Fellowships
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1999-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9602496&HistoricalAwards=false
• 关键词: Japan; STA; Program; Quenching; Gaseous

9602496 Sisk This award supports a 24 month Science and Technology Agency of Japan (STA) Postdoctoral Fellowship for Dr. Wade Sisk at the The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama, Japan. Dr. Sisk will work with Dr. Hisaharu Hayashi, on a research project entitled, "Quenching of Gaseous Fluorescence by Large Magnetic Fields up to 10 T and Magnetic Field Effects on Reactions Products After Excitation". Research on the chemical reaction of gas phase molecules has previously been carried out at ordinary fields (H2.5 T). The proposed study will investigate the chemical reactions of gaseous molecules with large magnetic fields (H2.5 T). When a molecule is excited, e.g. via laser light application, it may relax to its intial state through the emission of light (fluorescence). Accordingly, the examination of levels of fluoresence is an effective way to monitor reactants or products of a chemical reaction. When a molecule is excited in the presence of a defined magnetic field, the magnitude of the fluorescence is also altered. In the proposed research, fluorescence quenching and time- resolved absorbance spectro-scopy will be carried out under the influence of different applications (the emphasis on magentic fields) in order to: 1) gain a more comprehensive understanding of how large magnetic fields quench fluorescence in gasphase candidates; 2) ascertain the long- term effects that large magnetic fields have on complicated reaction mechanisms. ***

9602496 Sisk该奖项支持Wade Sisk博士在日本埼玉县Wako市物理化学研究所（RIKEN）获得为期24个月的日本科学技术振兴机构（STA）博士后奖学金。Sisk博士将与Hisaharu Hayashi博士合作进行一项名为“高达10 T的大磁场对气体荧光的猝灭以及激发后磁场对反应产物的影响”的研究项目。气相分子化学反应的研究以前在普通场（H2.5 T）进行过。本研究将研究大磁场（H2.5 T）下气体分子的化学反应。当一个分子被激发时，例如通过激光应用，它可以通过发光（荧光）放松到其初始状态。因此，检测荧光水平是监测化学反应的反应物或产物的有效方法。当一个分子在一个确定的磁场中被激发时，荧光的强度也会改变。在本研究中，荧光猝灭和时间分辨吸收光谱将在不同应用（重点是磁场）的影响下进行，以便：1)更全面地了解大磁场如何猝灭候选气相中的荧光；2)确定大磁场对复杂反应机制的长期影响。＊＊＊