Two-photon excitation of fluorescence from chicken tissue
- 1 February 1997
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 36 (4) , 968-970
- https://doi.org/10.1364/ao.36.000968
Abstract
We have measured UV fluorescence excited through two-photon absorption from native chicken tissue, using 600-nm, 500-fs pulses from a R6G dye laser. The observed emission signal was found to depend quadratically on the excitation intensity. The two-photon excitation-induced fluorescence spectrum is attributed to tryptophan residues in proteins.Keywords
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