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Determination of oxacyanine dyes and rhodamine by a second harmonic generation technique using a femtosecond laser

✍ Scribed by Takanori Inoue; Masao Moriguchi; Teiichiro Ogawa

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 372 KB
Volume: 330
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(96)00172-9

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✦ Synopsis

A second harmonic generation (SHG) technique has been used for a highly sensitive determination on a surface in ambient air. The detection limit (signal : noise=3) of an oxacyanine dye on a glass plate was 2 PM/cm', which was equivalent to 0.8% of the monolayer coverage. Rhodamine was found to create a dimer at higher surface concentrations.

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