Open AccessExperimental study of the nonlinear hot image effect of broadband pulsed laser beams
Author(s) -
Youwen Wang,
Jiang Deng,
Shuangchun Wen,
Tang Zhi-xiang,
Xinghu Fu,
Dianyuan Fan
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.1738
Subject(s) - optics , materials science , pulse (music) , laser , intensity (physics) , nonlinear medium , beam (structure) , beam diameter , slab , nonlinear system , monochromatic color , physics , nonlinear optics , laser beams , quantum mechanics , detector , geophysics
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.