Two-photon excitation of fluorescence from chicken tissue

Yici Guo, Q. Z. Wang, N. Zhadin, Feng Liu, S. Demos, D. Calistru, A. Tirksliunas, A. Katz, Y. Budansky, P. P. Ho, R. R. Alfano

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


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 languageEnglish (US)
Pages (from-to)968-970
Number of pages3
JournalApplied Optics
Issue number4
StatePublished - Feb 1 1997
Externally publishedYes


  • Spectroscopy
  • Tissue
  • Two-photon excitation-induced fluorescence

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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