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首页> 外文期刊>Applied Physicsletters >Amplified spontaneous emission in the cyano-substituted oligo(p-phenylenevinylene) organic crystals: Effect of excitation wavelength
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Amplified spontaneous emission in the cyano-substituted oligo(p-phenylenevinylene) organic crystals: Effect of excitation wavelength

机译：氰基取代的低聚对亚苯基亚乙烯基有机晶体中的自发发射放大：激发波长的影响

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摘要

We report an unusual phenomenon in amplified spontaneous emission (ASE) from cyano-substituted oligo(p-pheny lenevinylene) (CNDPASDB) single crystals, i.e., the ASE peak wavelength, exhibits varied dependence on the pumping wavelength λ_(ex). The former is basically kept a constant when λ_(ex)<505 nm, while a rapid redshift from 560 to 572 nm occurs when λ_(ex)>505 nm. The observation is different from stimulated Raman resonant scattering (SRRS) in two following aspects: the nonconstant Stokes shift and a much broader emission linewidth. A model describing competition between the stimulated emission and vibration relaxations has been proposed to interpret the underlying mechanism.
机译：我们报道了氰基取代的低聚对苯二乙烯（CNDPASDB）单晶的放大自发发射（ASE）中的不寻常现象，即ASE峰值波长对泵浦波长λ_（ex）表现出不同的依赖性。当λ_（ex）<505 nm时，前者基本保持恒定，而当λ_（ex）> 505 nm时，发生从560到572 nm的快速红移。该观察在以下两个方面与受激拉曼共振散射（SRRS）不同：非恒定斯托克斯位移和更宽的发射线宽。提出了描述受激发射和振动弛豫之间竞争的模型来解释潜在的机理。

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  • 来源
    《Applied Physicsletters》 |2010年第10期|p.103508.1-103508.3|共3页
  • 作者

    Hong-Hua Fang; Qi-Dai Chen; Jie Yang; Lei Wang; Ying Jiang; Hong Xia; Jing Feng; Yu-Guang Ma; Hai-Yu Wang; Hong-Bo Sun;

  • 作者单位

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory Supramolecular Structures and Materials, College of Chemistry, Jilin University,2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China College of Physics, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China;

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