发布求助
文献互助 智能选刊 最新文献

Short Wavelength Coherent Radiation: Generation and Applications最新文献

筛选
英文 中文
Intense Coherent Radiation in the VUV and XUV Region with Electron Beam Pumped Rare Gas Excimer Lasers 电子束抽运稀有气体准分子激光器在VUV和XUV区的强相干辐射
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos184
W. Sasaki, K. Kurosawa, P. Herman, K. Yoshida, Y. Kato
{"title":"Intense Coherent Radiation in the VUV and XUV Region with Electron Beam Pumped Rare Gas Excimer Lasers","authors":"W. Sasaki, K. Kurosawa, P. Herman, K. Yoshida, Y. Kato","doi":"10.1364/swcr.1988.swlos184","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos184","url":null,"abstract":"Rare gas excimer lasers are attractive sources for applications in laser spectroscopy, plasma diagnostics and photolytic pumping of other lasers. Since 1981, we have developed high-power rare-gas excimer lasers pumped by a pulsed electron beam and studied their performance using tunable cavities [1,2].","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122896381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time-resolved study of surface recombination at Si(111) surfaces Si(111)表面复合的时间分辨研究
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.soa392
N. Halas, J. Bokor
{"title":"Time-resolved study of surface recombination at Si(111) surfaces","authors":"N. Halas, J. Bokor","doi":"10.1364/swcr.1988.soa392","DOIUrl":"https://doi.org/10.1364/swcr.1988.soa392","url":null,"abstract":"At present, the technologically important phenomenon of nonradiative surface recombination at semiconductor surfaces and interfaces is very poorly understood. Since the phenomenon was initially described by Shockley, Bardeen, and others over 30 years ago, knowledge of the basic physics has progressed surprisingly little. We have endeavored to obtain a complete microscopic understanding of surface recombination at a semiconductor surface, including knowledge of the surface-state electronic structure and the detailed kinetics of the bulk-surface transfer of charge carriers. The Si(111) cleaved surface is an excellent model system for this study since the surface electronic structure is extremely well known experimentally and theoretically. There is a single intrinsic mid-gap state at 0.45 eV above the bulk valence band maximum (vbm) which is labelled π*. Previously, infrared radiation was used[1] to selectively excite the π* state without exciting the bulk and the details of its decay kinetics were measured. We have now directly observed the role played by this state in surface recombination of bulk electrons and holes.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"319 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soft X-Ray Lasing of Li-like Ions in Laser-Produced Plasmas* 类锂离子在激光等离子体中的软x射线激光*
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos135
Y. T. Lee, W. M. Howard
{"title":"Soft X-Ray Lasing of Li-like Ions in Laser-Produced Plasmas*","authors":"Y. T. Lee, W. M. Howard","doi":"10.1364/swcr.1988.swlos135","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos135","url":null,"abstract":"Several demonstrations of lasing in the extreme–ultraviolet (XUV) wavelength region have been successfully achieved using either collision or recombination pumping. The first successful demonstration was reported for the 3p–3s transitions in Ne–like selenium ions. Laser transitions at shorter wavelengths have also been achieved by using the 4d–4p transitions in Ni–like ions. These schemes are based on collisional excitation pumping, while in other successful schemes the upper lasing levels are populated directly by recombination processes.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130766434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Symmetries and Asymmetries in Above-Threshold Ionization 阈上电离的对称与不对称
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.hilim258
P. Bucksbaum, M. Bashkansky, D. Schumacher
{"title":"Symmetries and Asymmetries in Above-Threshold Ionization","authors":"P. Bucksbaum, M. Bashkansky, D. Schumacher","doi":"10.1364/swcr.1988.hilim258","DOIUrl":"https://doi.org/10.1364/swcr.1988.hilim258","url":null,"abstract":"Angular distributions of atomic electrons photoionized above threshold by intense elliptically polarized light contain strong asymmetries with respect to reflection about either principal polarization axis.1 These observations, which contradict Keldysh-Faisal-Reiss theory predictions,2,3,4 point to the significant role of the long range electrostatic potential of the ion in shaping the wave function of the outgoing electron. The experimental evidence for this phenomenon is reviewed for helium, krypton, and xenon photoelectron spectra, as a function of laser intensity, polarization, and electron energy.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134509591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time Development of Amplification in Na XI Hα-Line at 54.19 Å
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos137
H. Nishimura, H. Shiraga, H. Daido, T. Tachi, P. Herman, E. Miura, H. Takabe, M. Yamanaka, Y. Kato, G. Tallents, M. Key
{"title":"Time Development of Amplification in Na XI Hα-Line at 54.19 Å","authors":"H. Nishimura, H. Shiraga, H. Daido, T. Tachi, P. Herman, E. Miura, H. Takabe, M. Yamanaka, Y. Kato, G. Tallents, M. Key","doi":"10.1364/swcr.1988.swlos137","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos137","url":null,"abstract":"Temporal behavior of the Na XI Balmer-α (Hα) transition in a laser-produced. NaF plasma is experimentally investigated. The time variation of the gain value was derived from the ratio of the Hα intensities along and transverse to the x-ray laser axis. The Na XI Hα line is amplified during 100-500 psec after laser irradiation with the maximum gain of 2-4 cm−1. The experimental result is in close agreement with a model calculation using a 2-dimensional hydrodynamic code.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124162487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrahigh Peak Power Pulses Produced by Chirped Pulse Amplification 啁啾脉冲放大产生的超高峰值功率脉冲
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos165
P. Maine, D. Strickland, B. Bado, G. Mourou
{"title":"Ultrahigh Peak Power Pulses Produced by Chirped Pulse Amplification","authors":"P. Maine, D. Strickland, B. Bado, G. Mourou","doi":"10.1364/swcr.1988.swlos165","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos165","url":null,"abstract":"Chirped Pulse Amplification (CPA)1 allows the amplification of short laser pulses in amplifying media with good storage properties (low transition cross section) like Nd:glass1,2 or Alexandrite.3-4 In these media, straight amplification cannot be performed well, because of the large input flux necessary to reach efficient energy extraction. This condition leads to unacceptable peak powers. To minimize the intensity effects, the pulse is stretched, amplified, and recompressed. This technique allows an efficient energy extraction while maintaining a good beam quality. The intensity is kept below the onset level of small-scale focusing, occurring when values of the B integral are larger than three. We recall that the B integral is given by the expression.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121961742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum-Mechanical Interference in Four-Wave Mixing 四波混频中的量子力学干涉
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos125
P. B. Chappie, K. Baldwin, H. Bachor
{"title":"Quantum-Mechanical Interference in Four-Wave Mixing","authors":"P. B. Chappie, K. Baldwin, H. Bachor","doi":"10.1364/swcr.1988.swlos125","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos125","url":null,"abstract":"Interference between two different quantum-mechanical pathways for 4 wave mixing in sodium vapor has been observed. The 4 wave mixing was enhanced by 2-photon resonance with the 5s state, for one pathway, and the 4d state, for the other. The phase of the interference could be varied continuously by varying laser frequencies, and constructive and destructive interference effects were studied. A model based on third-order perturbation theory gives a good description of the features observed.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129870359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
All short pulse multiphoton ionization is resonant ionization 所有的短脉冲多光子电离都是共振电离
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.soa422
W. Cooke, R. Freeman, T. Mcilrath
{"title":"All short pulse multiphoton ionization is resonant ionization","authors":"W. Cooke, R. Freeman, T. Mcilrath","doi":"10.1364/swcr.1988.soa422","DOIUrl":"https://doi.org/10.1364/swcr.1988.soa422","url":null,"abstract":"Energy resolved photoelectron spectra of multiphoton ionization taken with a 300 fs laser pulse at 616 nm shows that the ionization probability is highly structured as a function of laser intensity. The spectrum is consistent with all of the ionization occurring at intensity resonances.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128177857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current Prospects for Free-Electron Lasers in the Extreme Ultraviolet* 极紫外自由电子激光器的发展前景*
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos200
B. Newnam
{"title":"Current Prospects for Free-Electron Lasers in the Extreme Ultraviolet*","authors":"B. Newnam","doi":"10.1364/swcr.1988.swlos200","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos200","url":null,"abstract":"In the last few years, free-electron laser (FEL) oscillators and amplifiers have produced coherent radiation over a broad spectral range extending from 463 nm in the visible to millimeter wavelengths as summarized graphically in Fig. 1. These successful demonstrations have encouraged a number of research centers to boldly consider extension of this electron-accelerator-based technology to the extreme ultraviolet (XUV) below 100 nm where no powerful, tunable, coherent-radiation source presently exists. Here, the peak- and average-power output of FEL oscillators and amplifiers should surpass the capabilities of any existing, continuously tunable photon sources by many orders of magnitude.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133007757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CO2 Laser-Heated Plasmas for Electron-Collisionally Pumped XUV Laser Studies 用于电子碰撞泵浦XUV激光器的CO2激光加热等离子体研究
Short Wavelength Coherent Radiation: Generation and Applications Pub Date : 1900-01-01 DOI: 10.1364/swcr.1988.swlos84
G. Enright, N. Burnett
{"title":"CO2 Laser-Heated Plasmas for Electron-Collisionally Pumped XUV Laser Studies","authors":"G. Enright, N. Burnett","doi":"10.1364/swcr.1988.swlos84","DOIUrl":"https://doi.org/10.1364/swcr.1988.swlos84","url":null,"abstract":"We describe a series of experiments to characterize plasmas produced by moderate intensity (≈ 2x1013 W/cm2), nanosecond pulse, CO2 laser irradiation of planar targets using both line (150 μm x 7 mm) and spherical (1mm diam.) focussing optics. X-ray line and continuum diagnostics have been used to infer a heat front penetration of about 20 μgm/cm2 at temperatures of approximately 300 eV. We observe only minor differences between targets whose mass is small compared to the hot electron range and much more massive ones, indicating a poor efficiency for hot electron reflexing in thin targets. In the case of Cu targets, observations of L shell x-ray transitions from neon and fluorine-like ions show a similar ionization distribution to 1 μm laser produced plasmas in which gain has recently been demonstrated. The Ne-like Cu XX 3p-3s emission lines have been observed. A comparison of on-axis to off-axis spectra provides evidence for gain on these lines.","PeriodicalId":190758,"journal":{"name":"Short Wavelength Coherent Radiation: Generation and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123309438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信