Laser-induced pattern formation from homogeneous polyisoprene solutions |
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| Authors: | Lin Dian-Yang Li Ming Wang Shu-Jie Lü Zhi-Wei |
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| Affiliation: | Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001, China; Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001, China;College of Science, Inner Mongolia University of Technology, Hohhot 010062, China; School of Management, Harbin Institute of Technology,Harbin 150001, China |
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| Abstract: | This paper reports that the pattern formation in homogeneoussolutions of polyisoprene in toluene saturated with Claser-induced, patternformation, polyisopreneProject supported by theMultidiscipline Scientific Research Foundation of Harbin Institute ofTechnology (Grand No HIT. MD. 2003. 08) and the Program of ExcellenceTeam in Harbin Institute of Technology.4265J, 4270JThis paper reports that the pattern formation in homogeneoussolutions of polyisoprene in toluene saturated with Claser-induced, patternformation, polyisopreneProject supported by theMultidiscipline Scientific Research Foundation of Harbin Institute ofTechnology (Grand No HIT. MD. 2003. 08) and the Program of ExcellenceTeam in Harbin Institute of Technology.4265J, 4270JThis paper reports that the pattern formation in homogeneoussolutions of polyisoprene in toluene saturated with Claser-induced, patternformation, polyisopreneProject supported by theMultidiscipline Scientific Research Foundation of Harbin Institute ofTechnology (Grand No HIT. MD. 2003. 08) and the Program of ExcellenceTeam in Harbin Institute of Technology.4265J, 4270JThis paper reports that the pattern formation in homogeneoussolutions of polyisoprene in toluene saturated with Claser-induced, patternformation, polyisopreneProject supported by theMultidiscipline Scientific Research Foundation of Harbin Institute ofTechnology (Grand No HIT. MD. 2003. 08) and the Program of ExcellenceTeam in Harbin Institute of Technology.4265J, 4270JThis paper reports that the pattern formation in homogeneoussolutions of polyisoprene in toluene saturated with C$_{60}$ inducedby a continuous-wave visible laser is observed experimentally. Thetransmitted beam patterns change with the increase of the laserirradiation time. In the initial phase, the patterns with concentricring-shaped structure are formed. In the end, the patterns becomespeckle-shaped. The incubation time of the transmitted beam wideningis inversely proportional to the laser power density and solutionconcentration. The pattern formation results from theoptical-field-induced refractive index changes in the solutions, butthe mechanism of optical-field-induced refractive index changes inthe polymer solutions needs to be further studied. |
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| Keywords: | laser-induced patternformation polyisoprene |
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