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Rotational level lifetimes and self-quenching of 127I2 by fluorescence demodulation spectroscopy

✍ Scribed by Uwe K.A. Klein; J. Mastromarino; A. Suwaiyan

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 424 KB
Volume: 217
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)e1366-o

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✦ Synopsis

Fluorescence demodulation spectroscopy (FDS) has been applied to determine lifetimes and self-quenching cross sections of two absorption lines in the X-B spectrum of 127-iodine. The lines are the R(93), 2-16 (v"-v') transition and the P(95), 1-14 (u"-u') transition. Both states exhibit pure lifetimes of about 280 ns and cross sections for self-quenching of about 46 A'. Values of both the lifetimes and the cross sections are considerably smaller than previously reported.