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DTIC ADA474846: Development of Novel Two-Photon Absorbing Chromophores |
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by Defense Technical Information Center |
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There has been much interest in the development of two- |
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photon absorbing materials and many efforts to understand |
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the nonlinear absorption properties of these dyes, but |
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this area is still not well understood. A computational |
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model has been developed in our lab to understand the |
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nanosecond nonlinear absorption properties that |
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incorporate all of the measured one-photon photophysical |
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parameters of a class of materials called AFX. We have |
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investigated the nonlinear and the photophysical |
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properties of the AFX chromophores including the two- |
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photon absorption cross-section, the excited state cross- |
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section, the intersystem crossing quantum yield, and the |
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singlet and triplet excited state lifetimes using a |
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variety of experimental techniques that include UV- |
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visible, fluorescence and phosphorescence spectroscopy, |
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time correlated single photon counting, ultrafast |
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transient absorption, and nanosecond laser flash |
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photolysis. The model accurately predicts the nanosecond |
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nonlinear transmittance data using experimentally |
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measured parameters. |
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Date Published: 2018-06-15 11:05:23 |
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Identifier: DTIC_ADA474846 |
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Item Size: 10950676 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Cooper, Thomas M ; AIR ... |
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@chris85 |
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