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Optical limiting properties and ultrafast dynamics of six-branched styryl derivatives based on 1,3,5-triazine
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10.1063/1.3619796
/content/aip/journal/jap/110/3/10.1063/1.3619796
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/3/10.1063/1.3619796

Figures

Image of FIG. 1.
FIG. 1.

Molecular structures of compounds T03-a, T03-b, and T03-c.

Image of FIG. 2.
FIG. 2.

(Color online) Absorption spectra and steady-state fluorescence spectra of T03-a, T03-b, and T03-c solutions in CHCl3.

Image of FIG. 3.
FIG. 3.

(Color online) a) The experimental data (open circle) and fitting results (solid line) of open aperture Z-scan results for T03-a, T03-b, and T03-c solutions in CHCl3, using 800 nm fs pulses. b) Open aperture Z-scan results for T03-b at different incident power. c) The value of vs pulse energy for T03-b.

Image of FIG. 4.
FIG. 4.

(Color online) a) TPF intensities of compound T03-a under different excitation power density. Inset is TPF intensity vs the square of the excitation power density. b) Two-photon fluorescence emissions spectra for T03-b and T03-c in solution (THF in dispersion of the nanoaggregate form with 90% water) at 10−5 M. Inset are TPF emissions images of T03-b in pure THF and in water mixture (90% water) excited by 800 nm beams.

Image of FIG. 5.
FIG. 5.

(Color online) a) Femtosecond transient absorption spectra of compound T03-a in CHCl3 solution in delay time range of 100 ps. b) Dynamics decay traces for compound T03-a in CHCl3 at different probe wavelengths.

Image of FIG. 6.
FIG. 6.

(Color online) a) Femtosecond transient absorption spectra of compound T03-b in CHCl3 solution in delay time range of 100 ps. b) Dynamics decay traces for compound T03-b in CHCl3 at different probe wavelengths.

Image of FIG. 7.
FIG. 7.

(Color online) a) Femtosecond transient absorption spectra of compound T03-c in CHCl3 solution in delay time range of 100 ps. b) Dynamics decay traces for compound T03-c in CHCl3 at different probe wavelengths.

Image of FIG. 8.
FIG. 8.

(Color online) Energy level diagram. : ground state; : localized excited state; a: absorption; ic: internal conversion; ICT: intramolecular charge transfer state; f: fluorescence; isc: intersystem crossing; p: phosphorescence; : the first triplet state. Dashed line represents the nonradiative process.

Image of FIG. 9.
FIG. 9.

(Color online) a) Normalized transmittance and b) the output-input relationship of three compounds with the concentration of 3.7 mmol/l, 4.0 mmol/l, and 3.8 mmol/l, respectively, at a wavelength of 800 nm. The points are the experimental data, while the solid lines are the theoretical fits.

Tables

Generic image for table
Table I.

Optical properties of compounds T03-a, T03-b, and T03-c in CHCl3 solutions.

Generic image for table
Table II.

Summary of the time constants of T03-a, T03-b, and T03-c in CHCl3 solution.

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/content/aip/journal/jap/110/3/10.1063/1.3619796
2011-08-09
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical limiting properties and ultrafast dynamics of six-branched styryl derivatives based on 1,3,5-triazine
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/3/10.1063/1.3619796
10.1063/1.3619796
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