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One-and two-photon ionization of aqueous tryptophan by the harmonics of the Nd laser

✍ Scribed by B. Finnström; F. Tfibel; L. Lindqvist

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
397 KB
Volume
71
Category
Article
ISSN
0009-2614

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✦ Synopsis

Study of the photcuomzatlon of aqueous tryptophan by the 265 nm harmoruc of the Nd-glass laser at dfierent hser pulse durations and energies estabhshed that ths reaction IS due to one-photon as well as two-photon absorption, the latter occurrmg mamly ma the evxed smglet State Adchtlon of the 353. or, alternatIvely, the 530 nm harmomc increased the photoelectron yield appreciably Double-pulse elperlments (lower harmomc delayed with respect to the 265 nm pulse) were used to determme the relative Importance of the exIted smglet and trIplet states m the two-photon processes responnble for ths mcrense

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