The two-photon phosphorescence excitatio
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L. Singer; Z. Baram; A. Ron; S. Kimel
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Article
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1977
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Elsevier Science
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English
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The two-photon excited phosphorescenceof triphenyiene in PMMA matrix at 77 K was measured using a tunable flashramp-pumped rhodamine dye laser in the effective spectral region 32000-36000 cm-\*. The band origin of the So-S2 transition, which is uncertain in the one-photon absorption spectrum, was ob