Laser & Optoelectronics Progress, Volume. 47, Issue 7, 71902(2010)

Study on Nonlinear Propagation Effects of Special Laser Beams

Qi Yihong*, Niu Yueping, Cui Ni, and Gong Shangqing
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    The studies on coherent control of extreme nonlinear optical properties via few-cycle laser pulses in atomic and atomic-like systems are reviewed,including self-focus effects on extreme nonlinear optics,self-induced transmission,resonant multipole vector solitons,etc. Due to the transverse effect,the 2nπ sech-pulse deformes and breaks up during the propagation. With further propagation,interference of the crescent-shape pulses,constructive interference and self-focusing phenomena are observed. Conventional area theorem is invalid in the study of ultrashort pulse in quantum wells. By defining effective area,the self-induced transmission of ultrashort pulse with effective area of 2π is investigated. The formation and propagation of resonant multipole vector soliton with weak light intensity are studied in a tripod-type atomic system,in which large nonlinearity and nearly vanishing absorption are achieved due to the quantum interference effect.

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    Qi Yihong, Niu Yueping, Cui Ni, Gong Shangqing. Study on Nonlinear Propagation Effects of Special Laser Beams[J]. Laser & Optoelectronics Progress, 2010, 47(7): 71902

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    Paper Information

    Category: Physical Optics

    Received: Mar. 30, 2010

    Accepted: --

    Published Online: Jun. 21, 2010

    The Author Email: Yihong Qi (qiyihong@siom.ac.cn)

    DOI:10.3788/lop47.071902

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