Accession Number:

ADA112439

Title:

The Evaluation of Saturated Amines as Potential Ultraviolet Laser Sources.

Descriptive Note:

Final rept. 30 Sep 80-31 Dec 81,

Corporate Author:

NORTHEASTERN UNIV BOSTON MA DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1982-02-25

Pagination or Media Count:

18.0

Abstract:

The specific goal of the project as outlined in the proposal was to determine whether under various pump conditions saturated amines could be observed to lase in the expected ultraviolet 280 - 320 nm region. A variety of chemical and physical systems was chosen in order to maximize the likelihood that lasing action could be produced and observed. While superradiant fluorescence was almost always detected under conditions of 249-nm KrF laser irradiation, no evidence of amine lasing was obtained for any compound under any conditions i.e. vapor or condensed phase. For vapor phase systems, it was observed that extensive ionization current was produced consequent to laser pumping. While quantitative measurements of the ion yields were not performed, it is believed that the principle loss mechanism in the amine laser cavity is via up-pumping to an ion state of the parent or fragment. Thus, despite the initially favorable prognosis of these compounds with respect to lasing action, i.e., relatively easily achievable threshold conditions, the up-pumping cross section of these compounds is apparently too large to allow for net amplification.

Subject Categories:

  • Organic Chemistry
  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE