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Short-Wavelength Coherent Radiation: Generation and Application最新文献

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Resonantly-Enhanced Harmonic Conversion at High Laser Intensity 高激光强度下共振增强的谐波转换
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1991-05-12 DOI: 10.1364/swcr.1991.mc3
M. Perry, K. Budil, S. Allendorf, J. Crane
{"title":"Resonantly-Enhanced Harmonic Conversion at High Laser Intensity","authors":"M. Perry, K. Budil, S. Allendorf, J. Crane","doi":"10.1364/swcr.1991.mc3","DOIUrl":"https://doi.org/10.1364/swcr.1991.mc3","url":null,"abstract":"In much the same way that intermediate states shifted through resonance by a strong field influence the electron spectrum in above threshold ionization (ATI),1,2 so too can these states influence the nonlinear dipole responsible for high order harmonic generation.3 However, because of the additional propagation effects (phase matching), such field induced resonances can have an even more important effect on the harmonic spectrum.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123923295","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
Resistance of Short Pulses to Self-Focusing 短脉冲自聚焦的阻力
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1991-05-12 DOI: 10.1364/JOSAB.11.000492
D. Strickland, P. Corkum
{"title":"Resistance of Short Pulses to Self-Focusing","authors":"D. Strickland, P. Corkum","doi":"10.1364/JOSAB.11.000492","DOIUrl":"https://doi.org/10.1364/JOSAB.11.000492","url":null,"abstract":"Self-focusing arises in all materials, gases, liquids, solids or plasmas. Yet, it has been investigated only in the limit where the beam diameter is significantly less than the pulse length (cτ, where τ is the pulse duration). In this case, the beam is predicted to selffocus to moving singularities in the absence of other nonlinear effects. However, there is another extreme which is rarely, if ever, noted where the beam diameter is much larger than the pulse length and the pulse will disperse before any self-focusing can occur. Short pulse self-focusing is more related to the second extreme than the first.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114957905","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: 40
Modal Study of Refractive Effects on X-ray Laser Coherence 折射效应对x射线激光相干性的模态研究
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1991-04-05 DOI: 10.1364/swcr.1991.wa5
P. Amendt, R. London, M. Strauss
{"title":"Modal Study of Refractive Effects on X-ray Laser Coherence","authors":"P. Amendt, R. London, M. Strauss","doi":"10.1364/swcr.1991.wa5","DOIUrl":"https://doi.org/10.1364/swcr.1991.wa5","url":null,"abstract":"Current X-ray laser designs rely on amplifying spontaneous emission in a high temperature plasma.1 An important issue involved in the study of X-ray lasers is the degree of transverse spatial coherence necessary for holographic applications.2 Longitudinal coherence appears to be satisfactory, but transverse coherence remains problematic and requires further optimization study.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116193321","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
Future Directions of Laboratory X-ray Laser Research 实验室x射线激光研究的未来方向
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tud3
M. Rosen
{"title":"Future Directions of Laboratory X-ray Laser Research","authors":"M. Rosen","doi":"10.1364/swcr.1991.tud3","DOIUrl":"https://doi.org/10.1364/swcr.1991.tud3","url":null,"abstract":"Recently, gain-length products exceeding 8 have been achieved with the Ni-like (Ta and W),4d-4p x-ray laser scheme (MacGowan et. al. Phys. Rev. Lett. 65, 420 (1990)) with wavelengths just inside and just outside the water window, near the carbon K edge at 43.7 Å. This success, however, is tempered by the fact that it took two of the ten arms of Nova, the world's most powerful laser, to pump the exploding foils that served as the amplification medium. If applications of x-ray lasers are to become a reality, we must devote some thought and effort to schemes that can produce such short wavelength lasing using more user friendly and less costly facilities.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","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":"127055401","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: 2
Intense Field Non-Resonant Multiphoton Absorption of Diatomic Molecules 双原子分子的强场非共振多光子吸收
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.mb1
B. Yang, M. Saeed, L. DiMauro
{"title":"Intense Field Non-Resonant Multiphoton Absorption of Diatomic Molecules","authors":"B. Yang, M. Saeed, L. DiMauro","doi":"10.1364/swcr.1991.mb1","DOIUrl":"https://doi.org/10.1364/swcr.1991.mb1","url":null,"abstract":"Recently, schematic theoretical1,2 and experimental3 investigations have begun to examine questions concerning the high field behavior of molecules. Obviously these studies become inherently more complex due to the richness of molecular structure (internal degrees of freedom) but do raise some interesting and unique aspects concerning the role and interplay of ionization and dissociation. The special problem presented by the study of molecular species is the disentanglement of the field from the structural effects. We have begun a schematic investigation of homo- and hetero-nuclear diatomics in an intense field. In this paper we will report results for hydrogen, oxygen, and chlorine molecules.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"21 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":"127871858","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
Instrumentation for Generating Tunable VUV Radiation 产生可调谐VUV辐射的仪器
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tua8
Xiaoxiong. Xiong, T. Mcilrath, C. Westbrook
{"title":"Instrumentation for Generating Tunable VUV Radiation","authors":"Xiaoxiong. Xiong, T. Mcilrath, C. Westbrook","doi":"10.1364/swcr.1991.tua8","DOIUrl":"https://doi.org/10.1364/swcr.1991.tua8","url":null,"abstract":"In this paper, we discuss a simple system (one dye laser and one pumping laser) constructed for generating tunable vacuum ultraviolet (VUV) radiation suitable for high resolution spectroscopy. Our special considerations are focused on the capability of generating hydrogen lyman-α at 121.6 nm and helium two-photon excitation radiation at 120.3 nm, and on the capability of monitoring both the intensity and the wavelength of the generated VUV radiation for precision spectroscopy. Third-order sum-difference frequency mixing, ωVUV = 2ωUV - ωir, is used to generate the VUV radiation in rare gases of Kr, Xe, and Ar. The input UV frequency is tuned near, but not on, two-photon intermediate resonances (Kr: 4p - 5p) to enhance the nonlinear susceptibility χ(3), and to provide the tunability of the VUV radiation. Operating near, but not on, intermediate resonances allows an efficient, tunable system with only one tunable laser. The optimal phase matching condition is achieved by mixing two oppositely dispersive gases [1 - 5].","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","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":"128444288","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
Plasma Reflectivity and Propagation Effects in a Femtosecond Laser Pulse 飞秒激光脉冲中的等离子体反射率和传播效应
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tua3
S. Rae, K. Burnett
{"title":"Plasma Reflectivity and Propagation Effects in a Femtosecond Laser Pulse","authors":"S. Rae, K. Burnett","doi":"10.1364/swcr.1991.tua3","DOIUrl":"https://doi.org/10.1364/swcr.1991.tua3","url":null,"abstract":"The development of table-top terawatt lasers, producing intensities of 1015−1018 W/cm2 in pulses of duration on the order of a picosecond or less, has opened up a whole new regime for plasma physics. The interactions occurring in a femtosecond-pulse laser-produced plasma differ in a number of important respects from the traditional mechanisms observed in, for example, an ICF plasma. Much of the interest in the field of femtosecond plasma physics centres on the production of ultrashort pulses of x-rays [1], and there has also been a considerable amount of work devoted to studies of energy absorption, in an attempt to characterise the hot, near-solid-density plasmas produced [2-4].","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"49 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":"116114803","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
X-ray holography using photoresists 使用光刻胶的x射线全息术
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.ma1
C. Jacobsen, S. Lindaas, M. Howells
{"title":"X-ray holography using photoresists","authors":"C. Jacobsen, S. Lindaas, M. Howells","doi":"10.1364/swcr.1991.ma1","DOIUrl":"https://doi.org/10.1364/swcr.1991.ma1","url":null,"abstract":"We have recorded 56 nm resolution Gabor holograms of biological specimens using photoresist detectors and 1.8-3.6 nm x-rays from an undulator source. With this technique, we are able to obtain high image resolution without the use of x-ray lenses; the resolution limit of the photoresist PMMA is thought to be in the 5-10 nm range. The technique also makes good use of partially coherent or multimode sources; monochromaticity requirements are eased compared to longer focal length zone-plate based scanning x-ray microscopes, and multiple spatially coherent modes can be used to record a hologram of a large field (although the image resolution will be limited by the width of one mode). Since the image is focussed in the reconstruction stage, the specimen alignment requirements are non-demanding. Judging from the survivability of photoresist exposures obtained using laser plasma x-ray sources, our current scheme may be compatible with flash exposures with x-ray lasers as they become available.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","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":"129170840","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
Multiphoton Spectroscopy Using Tunable VUV Radiation from a Raman-Shifted Excimer Laser 利用拉曼位移准分子激光器可调谐VUV辐射的多光子光谱
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tua10
G. Faris, M. J. Dyer
{"title":"Multiphoton Spectroscopy Using Tunable VUV Radiation from a Raman-Shifted Excimer Laser","authors":"G. Faris, M. J. Dyer","doi":"10.1364/swcr.1991.tua10","DOIUrl":"https://doi.org/10.1364/swcr.1991.tua10","url":null,"abstract":"Multiphoton spectroscopy has proved to be a valuable technique at visible and uv wavelengths, allowing access to high-lying states and the excitation of transitions not allowed for one photon excitation. Using vuv radiation for multiphoton excitation allows probing even higher states, but high powers are required to obtain reasonable signals. Two-photon excitation with vuv radiation has been performed using tunable excimer laser radiation1 and by Raman-shifting a frequency-doubled dye laser.2","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"30 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":"115370522","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: 1
The Physics of X-Ray Multilayer Structures x射线多层结构的物理学
Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.wc1
D. Windt, R. Hull, W. Waskiewicz
{"title":"The Physics of X-Ray Multilayer Structures","authors":"D. Windt, R. Hull, W. Waskiewicz","doi":"10.1364/swcr.1991.wc1","DOIUrl":"https://doi.org/10.1364/swcr.1991.wc1","url":null,"abstract":"The development of multilayer coatings for soft x-ray optics has matured in the last decade, resulting in numerous applications in many fields including x-ray astronomy, x-ray microscopy, x-ray lasers, and projection lithography. High performance multilayer-coated optics have been realized for normal incidence applications at wavelengths longer than the silicon absorption edge near 124 Å and for grazing incidence applications at shorter wavelengths, yet the challenge remains to develop high-reflectance normal incidence coatings above the silicon edge.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"99 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":"123909281","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: 1
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