Three-photon absorption of a new series of halogenated fluorene derivatives

Ion Cohanoschi; Marisol García; Carlos Toro; Kevin D. Belfield; Florencio E. Hernández

doi:10.1016/j.cplett.2006.08.093

Three-photon absorption of a new series of halogenated fluorene derivatives

Ion Cohanoschi, Marisol García, Carlos Toro, Kevin D. Belfield, Florencio E. Hernández

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

In this Letter, we report the characterization of the pure three-photon absorption and the measurement of the three-photon absorption cross-section (σ₃^′) of a new series of halogenated fluorene derivatives. The three-photon absorption of these compounds corresponds to the S₀ → S₁ electronic transition. All four compounds presented here have potential application as photosensitizers in deep photodynamic therapy induced via high order nonlinear absorption. The measurements were done using a tunable OPG pumped by a 25 ps Nd-YAG laser, and performing transmittance vs. input intensity as well as open aperture Z-scan at different wavelengths to determine the highest value of σ₃^′.

Original language	English (US)
Pages (from-to)	133-138
Number of pages	6
Journal	Chemical Physics Letters
Volume	430
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2006.08.093
State	Published - Oct 19 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2006.08.093

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abstract = "In this Letter, we report the characterization of the pure three-photon absorption and the measurement of the three-photon absorption cross-section (σ3′) of a new series of halogenated fluorene derivatives. The three-photon absorption of these compounds corresponds to the S0 → S1 electronic transition. All four compounds presented here have potential application as photosensitizers in deep photodynamic therapy induced via high order nonlinear absorption. The measurements were done using a tunable OPG pumped by a 25 ps Nd-YAG laser, and performing transmittance vs. input intensity as well as open aperture Z-scan at different wavelengths to determine the highest value of σ3′.",

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T1 - Three-photon absorption of a new series of halogenated fluorene derivatives

AU - Cohanoschi, Ion

AU - García, Marisol

AU - Toro, Carlos

AU - Belfield, Kevin D.

AU - Hernández, Florencio E.

PY - 2006/10/19

Y1 - 2006/10/19

N2 - In this Letter, we report the characterization of the pure three-photon absorption and the measurement of the three-photon absorption cross-section (σ3′) of a new series of halogenated fluorene derivatives. The three-photon absorption of these compounds corresponds to the S0 → S1 electronic transition. All four compounds presented here have potential application as photosensitizers in deep photodynamic therapy induced via high order nonlinear absorption. The measurements were done using a tunable OPG pumped by a 25 ps Nd-YAG laser, and performing transmittance vs. input intensity as well as open aperture Z-scan at different wavelengths to determine the highest value of σ3′.

AB - In this Letter, we report the characterization of the pure three-photon absorption and the measurement of the three-photon absorption cross-section (σ3′) of a new series of halogenated fluorene derivatives. The three-photon absorption of these compounds corresponds to the S0 → S1 electronic transition. All four compounds presented here have potential application as photosensitizers in deep photodynamic therapy induced via high order nonlinear absorption. The measurements were done using a tunable OPG pumped by a 25 ps Nd-YAG laser, and performing transmittance vs. input intensity as well as open aperture Z-scan at different wavelengths to determine the highest value of σ3′.

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Three-photon absorption of a new series of halogenated fluorene derivatives

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