DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Nam, Chang-Hee | - |
dc.contributor.advisor | 남창희 | - |
dc.contributor.author | Mocek, Tomas | - |
dc.contributor.author | 토마스 모첵 | - |
dc.date.accessioned | 2011-12-14T07:22:14Z | - |
dc.date.available | 2011-12-14T07:22:14Z | - |
dc.date.issued | 2000 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=157980&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/47236 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 물리학과, 2000.2, [ [iii], 125 p. ] | - |
dc.description.abstract | This thesis is devoted to experimental study of the interaction of femtosecond laser pulse at terawatt power level with various forms of matter. The soft X-ray emission form laser-irradiated gases, solids, and gaseous clusters has been investigated by means of time-integrated spectroscopy in the wavelength region 40-500 Å. Spectroscopic study of optical-field-ionized Ar, Kr, Xe, and oxygen plasmas is presented. By focusing 20-fs laser pulse at intensity of $\sim7\times10^16W/cm^2$ into high-pressure gas jet and/or low-density static gas cell, emission on lines originating from ions up to Ar IX, Kr IX, and Xe IX was observed. The feasibility of using the powerful, femtosecond Ti:Sapphire laser system developed at KAIST for pumping of collisional-excitation and recombination soft X-ray lasers is investigated. Spectra from highly charged ions of up to F VII, Al XI, Ti XII, Fe XVI, and Cu XIX are presented, and the effect of femtosecond prepulse on the X-ray emission from solid target is examined. The interaction of intense, 25-100 fs pulses with Ar and Ne clusters from a cryogenically-cooled gas jet target is explored. New spectral lines from charge states as high as Ar XI and Ne VIII appeared with decreasing temperature, and significant enhancement of X-ray line emission was observed with cooling, demonstrating efficient collisional heating of near-solid-density expanding clusters by 25-100 fs laser pulses. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Femtosecond | - |
dc.subject | Cluster | - |
dc.subject | Plasma | - |
dc.subject | X-ray laser | - |
dc.subject | X-ray spectroscopy | - |
dc.subject | Terawatt | - |
dc.subject | 테라와트 | - |
dc.subject | 펨토초 | - |
dc.subject | 클러스터 | - |
dc.subject | 플라즈마 | - |
dc.subject | X-선 레이저 | - |
dc.subject | X-선 분광학 | - |
dc.title | Soft X-ray emission generated by the interaction of intense, femtosecond laser with gas, solid, and cluster targets | - |
dc.title.alternative | 강한 펨토초 레이저와 기체, 고체, 클러스터 표적과의 상호작용에 의한 연 X-선 발생 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 157980/325007 | - |
dc.description.department | 한국과학기술원 : 물리학과, | - |
dc.identifier.uid | 000964001 | - |
dc.contributor.localauthor | Mocek, Tomas | - |
dc.contributor.localauthor | 토마스 모첵 | - |
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