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作者机构:Moscow MV Lomonosov State Univ Fac Phys Moscow 119992 Russia Moscow MV Lomonosov State Univ Ctr Int Laser Moscow 119992 Russia Inst Technol & Proc Glass Struct Saratov 410044 Russia USA Aviat & Missile Command Ctr Res Dev & Engn Weap Sci Directorate Redstone Arsenal AL 35898 USA CNR Area Ric Ist Proc Chim Fisici I-56124 Pisa Italy
出 版 物:《LASER PHYSICS》 (激光物理)
年 卷 期:2004年第14卷第5期
页 面:780-784页
核心收录:
学科分类:070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
主 题:COMPRESSION PROPAGATION GUIDANCE LIGHT AIR
摘 要:Hollow-core photonic-crystal fibers with passbands in the range of wavelengths from 0.4 to 2.0 mum are demonstrated. Changes in the envelope and the evolution of the spectral phase and the chirp of femtosecond pulses propagating through hollow photonic-crystal fibers are experimentally studied. Envelope and phase distortions of ultrashort pulses transmitted through such fibers are shown to be controlled by the detuning of the carrier frequency of laser pulses from the central frequency of the passband in the transmission of the fiber. Near the passband edges, which map the edges of photonic band gaps of the fiber cladding, ultrashort pulses transmitted through the fiber display considerable envelope distortions, as well as frequency- and time-dependent phase shifts.