Temporal contrast in Ti:Sapphire lasers:: Characterization and control

作     者：Nantel, M Itatani, J Tien, AC Faure, J Kaplan, D Bouvier, M Buma, T Van Rompay, P Nees, J Pronko, PP Umstadter, D Mourou, GA 

作者机构：Univ Michigan Ctr Ultrafast Opt Sci Ann Arbor MI 48109 USA Univ Tokyo Inst Solid State Phys Minato Ku Tokyo 106 Japan Alliage Inc F-75005 Paris France Medox Electroopt Inc Ann Arbor MI 48108 USA 

出 版 物：《IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS》 (IEEE J Sel Top Quantum Electron)

年 卷 期：1998年第4卷第2期

页      面：449-458页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0702[理学-物理学] 

基　　金：America Inc Center for Ultrafast Optical Science, (STC PHY 8 920 108) IMRA National Science Foundation, NSF U.S. Department of Energy, USDOE, (DE-FG02-96ER14685) U.S. Department of Energy, USDOE Foundation for Community Association Research, FCAR U.S. Air Force, USAF, (F49620-95-1-0474) U.S. Air Force, USAF 

主　　题：amplified spontaneous emission chirped-pulse amplification intensity contrast ratio pulse cleaning terawatt lasers 

摘      要：As ultrafast lasers achieve ever higher focused intensities on target, the problem of ensuring a clean laser-solid interaction becomes more pressing. In this paper, we give concrete examples of the deleterious effects of low-contrast interactions, and address the problem of subpicosecond laser intensity contrast ratio on both characterization and control fronts, We present the new technique of high-dynamic-range plasma-shuttered streak camera contrast measurement, as well as two efficient and relatively inexpensive ways of improving the contrast of short pulse lasers without sacrificing on the output energy: a double-pass Pockels cell (PC), and clean high-energy-pulse seeding of the regenerative amplifier.