Title

Excited-state absorption spectroscopy of metallo-porphyrin dyes with both Q-and B-band excitation

Abstract

Metallophthalocyanine and metallo-porphyrine derivatives, both of which have strong absorption band in the red/near-infrared (Q-band) and the blue/ultraviolet (B-band) spectral regions, were studied at 532 nm. With picosecond pulses, strong excited-state absorption was observed from the bottom of this manifold. On nanosecond time scales, this excited state may decay to a triplet state, or decay to the ground state. Due to the strong reverse-saturable absorber of these materials, excited-state absorption (ESA) and refraction at other wavelengths throughout the visible are also studied. The spectral behavior of the ESA depends on both the linear and excited-state spectra. The latter could be expected to be different for Q-band and B-band excitation.

Publication Date

1-1-1998

Publication Title

Conference on Lasers and Electro-Optics Europe - Technical Digest

Number of Pages

145-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0031634415 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031634415

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