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16 January 2002Spectral and kinetic behavior of phenylacetylene oligimers
Daniel G. McLean,1 Joy E. Rogers,2 Thomas M. Cooper3
1Science Applications International Corp. (United States) 2Technical Management Concepts International (United States) 3Air Force Research Lab. (United States)
To develop novel nonlinear dyes for photonic applications, we synthesized a series of transition metal-containing phenylacetylene oligomers. Theoretical properties of these compounds were measured by UV/Vis absorption, photoluminescence, and nanosecond flash photolysis experiments. It was found that as the number of oligomer units increased ,the transition energies decreased without saturation. The low ground state absorption and UV absorption edge gives rise to solutions that are nearly water clear. A very broad triplet state absorption extending from the absorption edge to the limits of our spectrometer is demonstrated to also be intense. These results enhance the understanding of these materials when used for nonlinear absorption applications and enable the prediction properties for materials extending this class of dyes.
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Daniel G. McLean, Joy E. Rogers, Thomas M. Cooper, "Spectral and kinetic behavior of phenylacetylene oligimers," Proc. SPIE 4462, Nonlinear Optical Transmission Processes and Organic Photorefractive Materials, (16 January 2002); https://doi.org/10.1117/12.452735