Peer-Reviewed Journal Details
Mandatory Fields
Arabei, SM;Galaup, JP;McCaffrey, JG;Shafizadeh, N;Crepin, C
2012
August
Low Temperature Physics
Electronic spectroscopy, stimulated emission, and persistent spectral hole burning of cryogenic nitrogen matrices doped with tetrabenzoporphin
Published
2 ()
Optional Fields
SOLID-STATE LASERS PHTHALOCYANINE DYES
38
727
731
This paper deals with our on-going work on the electronic spectroscopy of tetrapyrrole molecules embedded in cryogenic hosts. Under nanosecond laser excitation of free-base tetrabenzoporphin molecules in a nitrogen matrix at 8 K, increasing laser pulse energy results in essential enhancement of the intensity of one or several vibronic emission lines in the fine-structure fluorescence spectrum. Some characteristics of stimulated radiation are realized in the observed intense monochromatic: radiation as a result of a transition from the purely electronic S-1 level to a vibrational sublevel of the S-0 state, corresponding to the excitation of C-C stretching vibrations of tetrapyrrole methane bridges. We also report on persistent spectral hole-burning effects. Hole and antihole formation analysis gives some insight on the photochemical properties of tetrabenzoporphin in a nitrogen matrix. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4746794]
MELVILLE
1063-777X
10.1063/1.4746794
Grant Details