Quenching kinetics and small signal gain spectrum of the ZnI photodissociation laser

A. W. McCown, M. N. Ediger, J. G. Eden

Research output: Contribution to journalArticle

Abstract

By photodissociation ZnI2 with 193 nm (ArF) laser radiation, the rate constants for quenching of the upper and lower energy levels of the ZnI (B → X) laser by ZnI2 have been measured to be (1.7 ± 0.2) × 10-9 and (1.4 ± 0.4) × 10-9 cm3 s-1, respectively. Although the former rate constant was found to be laser intensity-dependent for I {greater-than or approximate} 105 W cm-2, the ZnI(B) state radiative lifetime was determined to be 26 ± 4 ns. Also, the small signal gain coefficient, g0, of this molecular laser has a peak value of {reversed tilde equals} 15% cm-1 at λ {reversed tilde equals} 602 nm and exceeds 5% cm-1 for 591 nm ≤ λ ≤ 608 nm for a potential tuning range of at least 170 Å.

Original languageEnglish (US)
Pages (from-to)190-194
Number of pages5
JournalOptics Communications
Volume40
Issue number3
DOIs
StatePublished - Jan 1 1982

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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