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LASER‐INDUCED FLUORESCENCE LINE NARROWING OF NATIVE PORPHYRINS IN ANIMAL TISSUE
Author(s) -
Novikov A. V.
Publication year - 1994
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1994.tb04995.x
Subject(s) - monochromatic color , fluorescence , excitation , excited state , laser , spectral line , wavelength , line (geometry) , laser induced fluorescence , dye laser , chemistry , resonance fluorescence , atomic physics , materials science , optics , optoelectronics , physics , geometry , mathematics , quantum mechanics , astronomy
Using monochromatic laser excitation, narrowing of the porphyrins 0‐0 fluorescence line in rat muscle tissue to a width of 50‐70 cm −l at 4.2 K is observed. Fluorescence spectra at different excitation wavelengths and excitation spectra are measured. Fluorescence line peak follows the shift of the excitation frequency. Several of the most prominent vibrational frequencies of porphyrins in the excited electronic state are determined.