Abstract
Abstract Spectral hole burning was used to study bacteriochlorophyll d (BChl d) of green sulphur bacteria Chlorobium vibriofome. The zero phonon hole (ZPH) widths (δHB) burned in the absorption and fluorescence spectra of BChl monomers were small in comparison with the δHB of BChl oligomers in whole cells. The phenomenon of laser induced hole filling (LIHF) of a primary hole after burning of secondary holes at a different wavelengths is reported for BChl monomers. Relative hole filled area depends mono-exponentialy on the secondary burning exposition. The hole filling coefficient (τ) decreases linearly with the distance between the primary (ΛB) and the secondary burning wavelengths (Λs) for Λs < ΛB.
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