%0 Journal Article %T Experimental study of the nonlinear hot image effect of broadband pulsed laser beams
宽频带光束非线性热像效应的实验研究 %A Wang You-Wen %A Deng Jian-Qin %A Wen Shuang-Chun %A Tang Zhi-Xiang %A Fu Xi-Quan %A Fan Dian-Yuan %A
王友文 %A 邓剑钦 %A 文双春 %A 唐志祥 %A 傅喜泉 %A 范滇元 %J 物理学报 %D 2009 %I %X The experimental investigation of the nonlinear hot image effect in brand-band pulsed laser beams is reported, placing emphasis on the observation of the formation of hot images and the influence of incident average power of pulse, pulse width, and thickness of the nonlinear medium on the location and intensity of hot images. It is shown that, hot images can be formed from obscurations in the broadband laser beam through a nonlinear Kerr medium slab, as in the case of the monochromatic continious light beam, and are located in the plane symmetrical to the obscuration with respect to the nonlinear slab. In addition, with the incident average power of pulse increasing, the intensity of hot image increases and ultimately reaches saturation, while with the pulse width increasing, the intensity of hot image decreases for a pulse of given energy. On the contrary, it increases for a pulse of given peak power. %K high-power lasers %K hot image %K broadband pulsed laser beam %K small-scale self-focusing
高功率激光, %K 热像, %K 宽带光束, %K 小尺度自聚焦 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=A6405A9BA560DA7FCACACD4AA165C66A&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=38B194292C032A66&sid=0F13B34BCC0D8726&eid=93ACFBACE750BC19&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0