{"title":"飞秒分辨率超快离子反应时间测量-脉冲激光场解吸-飞行时间光谱","authors":"T. Tsong","doi":"10.1063/1.35910","DOIUrl":null,"url":null,"abstract":"Using a pulsed‐laser field desorption technique and an ion reaction time amplification scheme for the time‐of‐flight spectroscopy, dissociation by atomic tunneling of 4HeRh2+ in a field of ∼3 to 4.5 V/A has been measured to be 790±21 fs. This is the time for the ion to rotate 180°. A strong isotope effect by replacing 4He with 3He confirms the ion reaction to be produced by atomic tunneling of a mass dependent potential barrier.","PeriodicalId":298672,"journal":{"name":"Advances in Laser Science-I","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Femtosecond resolution ultrafast ion reaction time measurement a pulsed‐laser field desorption time‐of‐flight spectroscopy\",\"authors\":\"T. Tsong\",\"doi\":\"10.1063/1.35910\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Using a pulsed‐laser field desorption technique and an ion reaction time amplification scheme for the time‐of‐flight spectroscopy, dissociation by atomic tunneling of 4HeRh2+ in a field of ∼3 to 4.5 V/A has been measured to be 790±21 fs. This is the time for the ion to rotate 180°. A strong isotope effect by replacing 4He with 3He confirms the ion reaction to be produced by atomic tunneling of a mass dependent potential barrier.\",\"PeriodicalId\":298672,\"journal\":{\"name\":\"Advances in Laser Science-I\",\"volume\":\"24 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Laser Science-I\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/1.35910\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Laser Science-I","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.35910","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Femtosecond resolution ultrafast ion reaction time measurement a pulsed‐laser field desorption time‐of‐flight spectroscopy
Using a pulsed‐laser field desorption technique and an ion reaction time amplification scheme for the time‐of‐flight spectroscopy, dissociation by atomic tunneling of 4HeRh2+ in a field of ∼3 to 4.5 V/A has been measured to be 790±21 fs. This is the time for the ion to rotate 180°. A strong isotope effect by replacing 4He with 3He confirms the ion reaction to be produced by atomic tunneling of a mass dependent potential barrier.
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