Superradiant pulse and amplified spontaneous emission from the flash pumped atomic iodine system undergoing the laser transition of 2P 1/2-2P3/2

Jae W. Hahn, Gyu U. Kim, Sang S. Lee

Research output: Contribution to journalArticle


Recently, Jaroszynski and King found superradiance(SR) occurring in photodissociatively created systems using NaI and n-C3F7I molecules, and Hahn and Lee have performed the amplified spontaneous emission(ASE) experiment in an iodine photodissociation laser(IPL) amplifier. In general, to observe SR experimentally, a very short intense pumping pulse of which FWHM is about a few tens of nanoseconds, is used for making a totally inverted system. But in this work, the amplifier is pumped with conventional flashlamps of FWHM=3us, yet we have detected a output pulse which is a superposition of ASE and SR. The temporal behaviour of the pulse is investigated in detail, and the experimental results are compared with theoretical results.

Original languageEnglish
Pages (from-to)429-430
Number of pages2
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1987 Jan 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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