Emission spectra and stimulated emission characteristics of [N2]2−N2 molecular dimer

  • Zuochun Shen
  • Jianye Lu
  • Ajmal H. Hamdani
  • Huide Gao
  • Zuguang Ma
Article
  • 57 Downloads

Abstract

It has been proved byab initio calculation and theoretical analysis that there exist [N2]2−N2 molecular dimers with D2h symmetry group, and there also exists an electric dipole excimer-like transition a1B2g→a1B3u. The theoretical spectra accord with the experimental results for transition a1B2g→a1B3u. The stimulated emission characteristic of N2 molecular dimer was researched through the microwave excited highly pure nitrogen and the method of amplified spontaneous emission. The experimental results show that N2 molecular dimer has stimulated emission characteristics when the microwave power is more than 100 W and the N2 pressure is in the range from 260 Pa to 2200 Pa.

Keywords

ab initio potential energy curve excimer-like molecule oscillator strength gain 

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Copyright information

© Science in China Press 2003

Authors and Affiliations

  • Zuochun Shen
    • 1
  • Jianye Lu
    • 1
  • Ajmal H. Hamdani
    • 2
  • Huide Gao
    • 1
  • Zuguang Ma
    • 1
  1. 1.Institute of Opto-electronicsHarbin Institute of TechnologyHarbinChina
  2. 2.IslamabadPakistan

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