Low-Threshold Random Laser with One Mirror and Feedbacks in PMMA Nano-Composite Films
SUN Xiao-Hong1,2, TAO Xiao-Ming1, XUE Pu1, KWAN Kai-Cheong1, DENG Jian-Guo1
1Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
2Department of Physics, University of Science and Technology of China, Hefei 230026
Low-Threshold Random Laser with One Mirror and Feedbacks in PMMA Nano-Composite Films
SUN Xiao-Hong1,2;TAO Xiao-Ming1;XUE Pu1;KWAN Kai-Cheong1;DENG Jian-Guo1
1Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
2Department of Physics, University of Science and Technology of China, Hefei 230026
Abstract： A low-threshold random laser with one mirror and feedback is investigated in the PMMA film containing rhodamine 590 and TiO2 nano-particles. Incoherent and coherent laser emission is observed. Effect of particle concentration on light emission is explored, and the optimum particle concentration is obtained. Optical microscopy and scanning probe microscopy are used to investigate the film structure, and the principle of incoherent and coherent laser is analysed.
SUN Xiao-Hong;TAO Xiao-Ming;XUE Pu;KWAN Kai-Cheong;DENG Jian-Guo. Low-Threshold Random Laser with One Mirror and Feedbacks in PMMA Nano-Composite Films[J]. 中国物理快报, 2005, 22(10): 2568-2570.
SUN Xiao-Hong, TAO Xiao-Ming, XUE Pu, KWAN Kai-Cheong, DENG Jian-Guo. Low-Threshold Random Laser with One Mirror and Feedbacks in PMMA Nano-Composite Films. Chin. Phys. Lett., 2005, 22(10): 2568-2570.
2005, Vol. 22 
