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.
|Original language||English (US)|
|Number of pages||3|
|State||Published - Feb 1 1997|
- Two-photon excitation-induced fluorescence
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics