Chin. Phys. Lett.  2002, Vol. 19 Issue (5): 739-741    DOI:
Original Articles |
Two-Photon-Absorption Induced Superradiance of a New Organic Dye PSPS
ZHOU Guang-Yong;WANG Dong;WANG Xiao-Mei;YANG Sheng-Jun,XU Xin-Guang;ZHAO Xian;SHAO Zong-Shu;JIANG Min-Hua
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Ji’nan 250100
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ZHOU Guang-Yong, WANG Dong, WANG Xiao-Mei et al  2002 Chin. Phys. Lett. 19 739-741
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Abstract The linear and nonlinear optical properties of a new two-photon absorption (TPA) dye, trans-4-(4'-pyrrolidinyl styryl)-N-methyl pyridinium methyl sulfate (abbreviated as PSPS) is reported. Intense red superradiance with a peak located at 625nm can be observed from PSPS solution in benzyl alcohol when pumped by a focused picosecond laser beam operated at 1064nm. The lifetimes of one-photon absorption (OPA) and TPA fluorescence were measured to be 370 and 384ps, respectively. The pulse widths of OPA and TPA superradiance were 60 and 58 ps, respectively. The highest net upconversion efficiency from the absorbed pump laser to the upconverted superradiance is 8.3% at the pump energy of 0.6 mJ.
Keywords: 78.20.Ci      81.05.Lg      45.25.Bs      42.79.Gn     
Published: 01 May 2002
PACS:  78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))  
  81.05.Lg (Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)  
  45.25.Bs  
  42.79.Gn (Optical waveguides and couplers)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I5/0739
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ZHOU Guang-Yong
WANG Dong
WANG Xiao-Mei
YANG Sheng-Jun
XU Xin-Guang
ZHAO Xian
SHAO Zong-Shu
JIANG Min-Hua
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