Study on the optical limiting properties of the mixed liquid of carbon black suspensions and green tea solution by multi-pulse laser
Niu Yan-Xiong(牛燕雄)a)b)†, Yang Hai-Lin(杨海林)a), Zhang Peng(张鹏)a), Shen Xue-Ju(沈学举)a), Jiang Nan(姜楠)a), Chen Yan(陈燕)a), and Tang Fang(唐芳)a)
a Department of Optics & Electrical Engineering, Ordnance Engineering College, Shijiazhuang 050003, China; b Tsinghua University, Key Laboratory of Precision Instrument and Testing Technology of Nation, Beijing 100084, China
Abstract The optical limiting properties of the mixed liquid of carbon black suspensions (CBS) and green tea solution were studied by using an 8 ns laser pulse at 532 nm. The optical limiting effects of the CBS and mixed liquid have been compared between 5 and 10 Hz repetition frequencies with nanosecond laser pulse. The experimental results indicate that the optical limiting threshold of the sample with the incidence laser at 10 Hz repetition frequency is lower than at 5 Hz repetition frequency. The possible reasons for the influence of the repetition frequency on the samples are discussed. And by observing the optical radiant distributions when the laser pulse passing through different samples, a possible mechanism for the observed effects is suggested. At the same time, the result shows that the optical limiting of CBS is the dominant factor to optical limiting of the mixed liquid.
Received: 22 December 2007
Revised: 25 April 2008
Accepted manuscript online:
PACS:
42.65.Re
(Ultrafast processes; optical pulse generation and pulse compression)
Fund: Project supported by the National
Science Foundation for Post-doctoral Scientists of China (Grant No
20060400418), and the Key Scientific Research Foundation of the
Ordnance Engineering College, China (Grant No YJJXM05002).
Cite this article:
Niu Yan-Xiong(牛燕雄), Yang Hai-Lin(杨海林), Zhang Peng(张鹏), Shen Xue-Ju(沈学举), Jiang Nan(姜楠), Chen Yan(陈燕), and Tang Fang(唐芳) Study on the optical limiting properties of the mixed liquid of carbon black suspensions and green tea solution by multi-pulse laser 2008 Chin. Phys. B 17 3367
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