Full metadata record
DC Field | Value | Language |
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dc.citation.startPage | 32567 | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 6 | - |
dc.contributor.author | Jeon, Seok-Gy | - |
dc.contributor.author | Shin, Dongwon | - |
dc.contributor.author | Hur, Min Sup | - |
dc.date.accessioned | 2023-12-21T23:13:24Z | - |
dc.date.available | 2023-12-21T23:13:24Z | - |
dc.date.created | 2016-10-07 | - |
dc.date.issued | 2016-09 | - |
dc.description.abstract | Various methods to generate ultrashort electron bunches for the ultrafast science evolved from the simple configuration of two-plate vacuum diodes to advanced technologies such as nanotips or photocathodes excited by femtosecond lasers. In a diode either in vacuum or of solid-state, the transit-time limit originating from finite electron mobility has caused spatiotemporal bunch-collapse in ultrafast regime. Here, we show for the first time that abrupt exclusion of transit-phase is a more fundamental origin of the bunch-collapse than the transit-time limit. We found that by significantly extending the cathode-anode gap distance, thereby violating the transit-time limit, the conventional transit-time-related upper frequency barrier in diodes can be removed. Furthermore, we reveal how to control the velocity chirp of bunches leading to ballistic bunch-compression. Demonstration of 0.707 THz-, 46.4 femtosecond-bunches from a 50 mu m-wide diode in three-dimensional particle-in-cell simulations shows a way toward simple and compact sources of ultrafast electron bunches for diverse ultrafast sciences. | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.6, pp.32567 | - |
dc.identifier.doi | 10.1038/srep32567 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.scopusid | 2-s2.0-84988472369 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/20566 | - |
dc.identifier.url | http://www.nature.com/articles/srep32567 | - |
dc.identifier.wosid | 000383710100001 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Violation of the transit-time limit toward generation of ultrashort electron bunches with controlled velocity chirp | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | FIELD-EMITTER ARRAYS | - |
dc.subject.keywordPlus | ACCELERATION | - |
dc.subject.keywordPlus | AMPLIFIERS | - |
dc.subject.keywordPlus | EMISSION | - |
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