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Proceedings Paper

Photochemical and lasing properties of pyrromethene dyes
Author(s): Guilford Jones; Oksana Klueva; Satish Kumar; Dennis P. Pacheco
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Paper Abstract

Pyrromethene dyes, particularly PM 567, have been studied in liquid media using various spectroscopic techniques. Photodecomposition of dyes was monitored by absorption and fluorescence spectroscopy. In laser flash photolysis experiments on dyes in liquids, phototransients were observed (microsecond time domain) that included dye triplets and at least one other transient of the radical or radical-ion type. Experiments included product studies that allowed identification of major products of photodegradation; an assessment of the effectiveness of known stabilizing additives such as DABCO and butazate was also conducted. Purposes of the work included definition of the roles of energy and electron transfer mechanisms in dye photodegradation and the effects of oxygen or additives in dye media.

Paper Details

Date Published: 16 April 2001
PDF: 12 pages
Proc. SPIE 4267, Solid State Lasers X, (16 April 2001); doi: 10.1117/12.424614
Show Author Affiliations
Guilford Jones, Boston Univ. (United States)
Oksana Klueva, Boston Univ. (United States)
Satish Kumar, Boston Univ. (United States)
Dennis P. Pacheco, Physical Sciences, Inc. (United States)

Published in SPIE Proceedings Vol. 4267:
Solid State Lasers X
Richard Scheps, Editor(s)

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