Modeling of non-Lorentzian two-photon absorption line shape in dipolar chromophore

Aleks K. Rebane; Mikhail Drobizhev; Nikolay S. Makarov; Erich Beuerman; Christoph Nacke; Jüri Pahapill

doi:10.1117/12.842389

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1 March 2010 Modeling of non-Lorentzian two-photon absorption line shape in dipolar chromophore

Aleks K. Rebane, Mikhail Drobizhev, Nikolay S. Makarov, Erich Beuerman, Christoph Nacke, Jüri Pahapill

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Proceedings Volume 7599, Organic Photonic Materials and Devices XII; 759919 (2010) https://doi.org/10.1117/12.842389
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We present a new approach to modeling of homogeneous line shape in two-photon absorption (2PA) spectra of chromophores with large permanent dipole moment difference between the ground- and excited electronic states using numerical solution of stochastic two-level density matrix equation of motion. Good agreement with experimental 2PA line shapes is obtained for S1←S0 transition of Styryl 9M, which allows us to estimate that the permanent dipole moment difference varies in this chromophore within the S1←S0 band in the range, Δμ = 12 - 25 D.

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Aleks K. Rebane, Mikhail Drobizhev, Nikolay S. Makarov, Erich Beuerman, Christoph Nacke, and Jüri Pahapill "Modeling of non-Lorentzian two-photon absorption line shape in dipolar chromophore", Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 759919 (1 March 2010); https://doi.org/10.1117/12.842389

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