Suppression of laser induced amplified spontaneous emission between the f 0g+ (3P0) and D 0u+ (3P2) ion-pair states of I2

Shoma Hoshino, Rin Abe, Oji Yamamoto, Koichi Tsukiyama

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2 Citations (Scopus)

Abstract

Suppression of the laser induced amplified spontaneous emission (LIASE) process between the ion-pair excited states of I2 is reported. Taking advantage of a unique feature that the amplification of radiation occurs above a certain threshold of the population inversion density, we demonstrated the notable reduction of the R(78) LIASE line intensity corresponding to the f 0g+ (3P0) (vf = 0, Jf = 79) → D 0u+ (3P2) (vD = 0, JD = 78) transition, when the lower level of the transition was intentionally pre-populated through two photon excitation by a control laser.

Original languageEnglish
Article number137497
JournalChemical Physics Letters
Volume751
DOIs
Publication statusPublished - 16 Jul 2020

Keywords

  • Amplified spontaneous emission
  • Ion-pair state
  • Molecular iodine
  • Population inversion

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