By M. D. Perry, B. C. Stuart, D. Pennington, G. Tietbohl, J. Britten, C. Brown, S. Herman (auth.), Louis DiMauro, Margaret Murnane, Anne L’Huillier (eds.)
The Optical Society of the USA convention on functions of excessive Fields and brief Wavelength resources, held in Santa Fe, New Mexico, united states, from March 20-22, 1997, was once a really intriguing convention. This convention was once the 7th in a chain of topical con ferences, held each years, that are dedicated to the new release and alertness of excessive box and brief wavelength resources. The assembly was once really overseas in scope, with equivalent participation from either inside and out of doors of the USA. some time past years, there was dramatic growth in either laser and x-ray coher ent assets, either basic and utilized. The 1997 assembly highlighted those advances, that are summarized in sections 1 and a pair of of this quantity. Terawatt-class lasers are actually avail capable within the UV or at excessive repetition charges. Michael Perry (LLNL) offered a keynote speak on petawatt classification lasers and their functions in inertial confinement fusion, whereas Jorge Rocca (Colorado nation collage) offered a keynote speak on tabletop soft-x-ray lasers. Genera tion and dimension options have gotten very subtle during the UV and x ray sector of the spectrum, and coherent assets were prolonged to wavelengths under 30A. part keep watch over within the x-ray quarter is additionally now attainable, and new phase-matching schemes within the UV were experimentally proven. it truly is transparent new box of x-ray nonlin ear optics will deveiop quickly over the following few years.
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L . • . 'l r: -:·· r ·. ~ '". ~~ .. Figure 2. 9nm laser in comparison with a 5 mW He-Ne laser. pulse energies of up to 30 ~J and to beam intensities larger than the computed saturation intensities of 56-78 MW/cm2 • The saturation intensity was calculated considering an ion temperature of 100 eV, and an effective-to-radiative lifetime ratio for the laser upper level between 20 and 30 for plasma densities of 5-Sx I 0 18 cm·3 , as computed by our magnetohydrodynamic calculations for these discharge conditions2 • The measured saturation behavior is in good agreement with the result of two independent radiation transport models for the capillary plasma columns.
In these Proceedings. 4. H. H. Kalantar, J. A. V. Weber, E. Wolfrum, D. J. Rose, J. S. S. L. G. Mac Phee, J. Warwick, A. Demir, J. Lin, R. J. Tallents. Developments in XUV laser radiography of laser driven targets. In these Proceedings. 5. H. Daido, Y. Kato, T. lmani, S. Sezaki, S. Y. Yoon, T. Jitsuno, Y. Takagi, K. Mirna, S. Wang, Z. Lin, Y. Gu, G. Huang, H. Tang, D. Ximing, G. Zhang, K. Murai and H. Takenaka. Generation of intense X-ray laser radiation at 8 nm in Ni-like Nd ions. In these Proceedings.
0 10 12 14 16 18 Capillary Length Figure 6. Variation of the coherence length in the tangential direction as a function of plasma column length. Different symbols correspond to series of measurements conducted in several different identical capillaries. The line is the result of wave-model calculations. DEMONSTRATION OF LASING CREATED BY ABLATION OF A SOLID MATERIAL: AMPLIFICATION IN Ne-LIKE S. The extension of the Ne-like Ar results to other wavelengths, in particular the search for gain in discharge-created plasmas at shorter wavelengths, will require in most cases the generation of plasma columns of elements that are solid at room temperature.