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首页> 中文期刊> 《中国物理快报：英文版》 >Four-Photon Process Induced Upconversion Lasing

Four-Photon Process Induced Upconversion Lasing

         
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摘要

@@ It is measured that upconversion fluorescent intensity of a new molecule is proportional to the quartic of excitation density. This demonstrates that it is a four-photon absorption process. Furthermore, at high-density ultrashort pulse laser pumping, an emission appears to satisfy four criteria of lasing, including the highly directional emission,the short emission duration, the spectral narrowing, and changing to linear output/input relationship above a threshold. The experimental results demonstrate that the four-photon-process-induced amplified spontaneous emission occurs.

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  • 来源
    《中国物理快报：英文版》 |2005年第5期|1152-1154|共3页
  • 作者

    FAN Hai-Hua; WANG He-Zhou; TIAN Yu-Peng;

  • 作者单位

    State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275;

    State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275;

    Department of Chemistry, Anhui University, Hefei 230039;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
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