Photochemical and lasing properties of pyrromethene dyes

Guilford Jones II; Oksana Klueva; Satish Kumar; Dennis P. Pacheco

doi:10.1117/12.424614

16 April 2001 Photochemical and lasing properties of pyrromethene dyes

Guilford Jones II, Oksana Klueva, Satish Kumar, Dennis P. Pacheco

Proceedings Volume 4267, Solid State Lasers X; (2001) https://doi.org/10.1117/12.424614
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

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.

Citation Download Citation

Guilford Jones II, Oksana Klueva, Satish Kumar, and Dennis P. Pacheco "Photochemical and lasing properties of pyrromethene dyes", Proc. SPIE 4267, Solid State Lasers X, (16 April 2001); https://doi.org/10.1117/12.424614

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