Short-Wavelength Coherent Radiation: Generation and Application最新文献_第5页

Efficient Coupling of High-Intensity Sub-Picosecond Laser Pulses into Solid Grating Targets 高强度亚皮秒激光脉冲与固体光栅目标的有效耦合

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tue1

M. Mumane, H. Kapteyn, J. Bokor, W. Mansfield, R. Gnall, E. Glytsis, T. Gaylord, R. Falcone

引用次数: 0

Broadband Diffractive Optics* 宽带衍射光学*

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tue4

N. Ceglio, A. Hawryluk, D. Gaines, R. London, L. Seppala

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Soft-X-Ray Emission Characteristics of Line-Shaped, Laser-Produced Plasmas 线状激光等离子体的软x射线发射特性

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.wa12

Shisheng Chen, Xiaofang Wang, A. Qian, Zhi‐zhan Xu

引用次数: 0

Recent advances in soft-x-ray laser research 软x射线激光研究进展

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tud1

B. MacGowan

{"title":"Recent advances in soft-x-ray laser research","authors":"B. MacGowan","doi":"10.1364/swcr.1991.tud1","DOIUrl":"https://doi.org/10.1364/swcr.1991.tud1","url":null,"abstract":"Soft x-ray laser experiments at the Lawrence Livermore National Laboratory, Nova laser will be described. Much of the work involves the study of collisionally pumped Ne-like and Ni-like lasers1 although some studies of recombination pumped and resonantly photo-pumped x-ray lasers will be discussed. These experiments have produced nickel-like collisionally pumped x-ray lasers at wavelengths near to, and below that of the K absorption edge of carbon (43.76-Å)2. Recent work has concentrated on the development of the Ni-like Ta amplifier as a high power source at 44.83- Å. Amplification occurs in a laser produced plasma created by irradiating a thin foil of Ta with two beams of the Nova laser. Up to 8 gainlengths have been demonstrated so far, with a gain coefficient of 3 cm–1 and a gain duration of 250 psec. The Ni-like Ta amplifier at 44.83- Å lies at the edge of the water window, and provides the basis for the design of an x-ray laser source that should fulfill some of the requirements for holography of living cells. It remains to optimize the coherent output power of the amplifier to use it as a source for future x-ray holography experiments. Experiments utilizing normal incidence x-ray optics to enhance the power output from this laser will be described.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"65 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":"128685986","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

Molecular Multiphoton Ionization and the "Universal" Short-pulse ATI Spectrum 分子多光子电离和“通用”短脉冲ATI光谱

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.mb2

G. Gibson, R. Freeman, T. Mcilrath

引用次数: 0

A 0.5 Terawatt, 125 Femtosecond Ti:Sapphire Laser 一个0.5太瓦，125飞秒的钛蓝宝石激光器

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.tua13

J. Kmetec, J. J. Macklin, B. Lemoff, J. Young

{"title":"A 0.5 Terawatt, 125 Femtosecond Ti:Sapphire Laser","authors":"J. Kmetec, J. J. Macklin, B. Lemoff, J. Young","doi":"10.1364/swcr.1991.tua13","DOIUrl":"https://doi.org/10.1364/swcr.1991.tua13","url":null,"abstract":"Broadband, high-energy storage, solid state amplifiers and chirped-pulse amplification further extend the peak power obtainable from a laser source. Laser-generation of x-rays and strong-field experiments require focusable beams at terawatt power levels. We have constructed a system at 802 nm using Ti:sapphire amplifiers and the technique of chirped-pulse amplification. In our system, a dye laser produces a train of 85 fsec seed pulses. A positively-dispersive grating pair expander chirps these pulses, stretching the pulsewidth to 180 psec while preserving the femtosecond bandwidth. The stretched pulses seed a Ti:sapphire regenerative amplifier, producing 8 mJ, 180 psec output. Further amplification in a triple-passed Ti:sapphire amplifier increases the pulse energy to 120 mJ. A negatively-dispersive parallel grating pair removes the chirp, recompressing the pulse to 125 fsec. The final output contains 60 mJ of energy in a 125 fsec pulsewidth. The output beam is Gaussian and measured to be 1.2 times diffraction limited. Focusing with an f/6 lens achieves 87% transmission through a 10.8 micron pinhole. Hence, f/6 focusing will produce 1018W/cm2. Passage through a saturable absorber reduces the amplifier noise to signal power ratio to 10−9 in the leading edge of the short pulse, with a large signal, whole beam transmission of 70%. Both the regenerative and the final amplifier are pumped by the 532 nm frequency-doubled output of a single commercially available 10 Hz Nd:YAG laser.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"11 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":"126502318","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

Studies of the Interaction of Molecules and Solids with Intense Subpicosecond 248 NM Radiation 248纳米亚皮秒强辐射下分子与固体相互作用的研究

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.ma2

C. Rhodes

引用次数: 0

Laser-plasma sources for lithography 光刻用激光等离子体光源

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.wb3

J. Forsyth

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Optical Wiggler Free-Electron X-Ray Laser as a Two-Level Quantum, Generator with Fully Inverted Medium 光摆动自由电子x射线激光器作为完全倒置介质的二能级量子发生器

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.wa2

É. Belenov, S. Grigoriev, A. Nazarkin, I. Smetanin

{"title":"Optical Wiggler Free-Electron X-Ray Laser as a Two-Level Quantum, Generator with Fully Inverted Medium","authors":"É. Belenov, S. Grigoriev, A. Nazarkin, I. Smetanin","doi":"10.1364/swcr.1991.wa2","DOIUrl":"https://doi.org/10.1364/swcr.1991.wa2","url":null,"abstract":"Recently the possibility was widely discussed of creation of an X-ray free-electron laser (FEL) using a high-power laser pulse as the undulator (optical wiggler FEL) [1]. Optical wiggler FEL is characterized by relatively small energy of the used electrons (ε ~ 1÷10 MeV). In order to achieve high values of the gain for X-rays it is necessary to use rather monoenergetic electron beams (Δγ/γ ~ 10–4) and the wigglers with a large number of periodic elements (N ≥ 104). In such FEL the energy of X-ray quantum can exceed the induced emission Cabsorption) linewidth: ωX > max {εΔγ/γ, ε(4N–1)}. We have shown that in this case the electrons interacting with the fields in FEL behave as two-level particles (the energies of these two levels are defined by energy and momentum conservation laws in an elementary act of stimulated Compton backscattering). The electron beam injected into the region of interaction with the energy close to the energy of the upper level represents a fully inverted medium for the amplified X-ray emission. The possibility is shown of FEL lasing with full extraction of inversion.","PeriodicalId":286766,"journal":{"name":"Short-Wavelength Coherent Radiation: Generation and Application","volume":"134 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":"127369570","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

Progress in the Development of a Compact Capillary Discharge Soft X-Ray Laser 小型毛细放电软x射线激光器的研制进展

Short-Wavelength Coherent Radiation: Generation and Application Pub Date : 1900-01-01 DOI: 10.1364/swcr.1991.wa9

J. Rocca, M. Marconi, B. Szapiro, J. Meyer

引用次数: 0