χ(3) measurements and optical limiting in dibenzylideneacetone and its derivatives

Kiran, A. John; Chandrasekharan, K.; Nooji, Satheesh Rai; Shashikala, H.D.; Umesh, G.; Kalluraya, Balakrishna

doi:10.1016/j.chemphys.2005.12.006

Cited by 79 publications

(19 citation statements)

References 19 publications

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“…Survey of literature indicates that organic materials with nonlinear optical properties will turn out to be key elements for future photonic technologies 5 . This may be due to superior and more rapid response of organic materials, their synthetic flexibility, a strong donor-acceptor intermolecular interaction and a delocalized π-electron system which facilitates nonlinear optical activity 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Studies on Non-Linear Optical Property of New Chalcone Based Polymers

2017

Chem Sci Trans

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Abstract:A new series of non linear optical (NLO) copolyesters have been synthesized by solution polycondensation method. The two diols namely 2,6 bis(4-methoxy-3-hydroxybenzylidene)-3-methylcyclohexanone and 1-(3-hydroxyphenyl)-3-(4-methoxy-3-hydroxyphenyl)-prop-2-en-1-one, isopthaloyl chloride and succinyl, oxalyl and glutaryl chlorides were employed in the synthesis of the six copolyesters. Claisen-Schmidt condensation reaction was employed in synthesizing these two monomer diols. The formed polymeric materials were characterized by involving viscosity measurements, solubility study and FT-IR, 1 H NMR, 13 C NMR and UV-Visible spectroscopic techniques. Thermal transitions of these six copolyesters were recorded in an inert nitrogen atmosphere using Thermogravimetric Analysis. The second harmonic generation (SHG) efficiency of these copolyesters was measured by the standard powder technique using Nd-YAG laser and they were found to be NLO active.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Studies on Non-Linear Optical Property of New Chalcone Based Polymers

2017

Chem Sci Trans

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“…As regards the electromagnetic field, the absorption of the field can be described by using the field intensity I ( t ) [22]:

(\frac{\partial}{\partial z} + \frac{1}{c} \frac{\partial}{\partial t}) I (t) = - N [σ^{(1)} I (t) + σ^{(2)} I^{2} (t)]

where N is the molecular density. σ (1) and σ (2) are the total OPA and TPA cross sections, respectively, and they can be expressed as

{sans-serifσ}^{(1)} = {sans-serifσ}_{s_{0} s_{1}} ({sans-serifρ}_{s_{0}} - {sans-serifρ}_{s_{1}}) + {sans-serifσ}_{s_{0} s_{1}} ({sans-serifρ}_{s_{1}} - {sans-serifρ}_{s_{2}}) {sans-serifσ}^{(2)} = {sans-serifσ}_{s_{0} s_{2}} ({sans-serifρ}_{s_{0}} - {sans-serifρ}_{s_{2}})

…”

Section: Theoretical Methods and Computational Detailsmentioning

confidence: 99%

The Effect of the Substituent Position on the Two-Photon Absorption Performances of Dibenzylideneacetone-Based Isomers

Zhao

Zhang

et al. 2016

Materials

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The two-photon absorption and optical limiting properties of two dibenzylideneacetone derivatives with different substituent positions have been theoretically investigated by solving the coupled rate equations-field intensity equation in the nanosecond time domain using an iterative predictor-corrector finite-difference time-domain method. The calculations show that the electronic structure, the transition dipole moment, the energy gap between the highest occupied orbital (HOMO) and the lowest unoccupied orbital (LUMO), and the pumping rate for the two molecules are quite different due to the different position of chlorine atoms. Importantly, two-photon absorption and optical limiting properties of the molecules depend crucially on the substituent positions of the terminal group, indicating that subtle manipulation on the molecule can affect the nonlinear optical properties of the medium.

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“…A Tauc's plot (Fig. 9) between (ahm) 2 and incident photon energy hm shows a direct transition between excited state and ground state. The energy gap can be obtained by extrapolating the linear portion of the curve to a point (ahm) 2 = 0 [22].…”

Section: Uv-visible Spectroscopymentioning

confidence: 97%

“…In recent decades, there is a great demand for organic nonlinear optical (NLO) materials for inventing new photonic devices including optical limiters, harmonic generators, optical switches, signal processors and for these potential applications extensive range of organic optical materials has been examined [1,2]. NLO property has been investigated in many organic materials, such as chalcones, phenyl acetylenes, phthalocyanines, porphyrins and naphthalocyanines [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Structure–property relation and third order nonlinear optical absorption study of a new organic crystal: 1-(3,4-Dimethoxyphenyl)-3-(2-fluorophenyl) prop-2-en-1-one

et al. 2015

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χ(3) measurements and optical limiting in dibenzylideneacetone and its derivatives

Cited by 79 publications

References 19 publications

Synthesis and Studies on Non-Linear Optical Property of New Chalcone Based Polymers

Synthesis and Studies on Non-Linear Optical Property of New Chalcone Based Polymers

The Effect of the Substituent Position on the Two-Photon Absorption Performances of Dibenzylideneacetone-Based Isomers

Structure–property relation and third order nonlinear optical absorption study of a new organic crystal: 1-(3,4-Dimethoxyphenyl)-3-(2-fluorophenyl) prop-2-en-1-one

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