Reverse saturation absorption spectra and optical limiting properties of chlorinated tetrasubstituted phthalocyanines containing different metals

Tuhl, Ahmad; Manaa, Hacene; Al-Awadi, Nouria; Matthew, Jacob; Ibrahim, Hamada Mohamed; Behbehani, Haider

Title: Reverse saturation absorption spectra and optical limiting properties of chlorinated tetrasubstituted phthalocyanines containing different metals
Creator: Tuhl, Ahmad
Creator: Manaa, Hacene
Creator: Makhseed, Saad
Creator: Al-Awadi, Nouria
Creator: Matthew, Jacob
Creator: Ibrahim, Hamada Mohamed
Creator: Nyokong, Tebello
Creator: Behbehani, Haider
Subject: To be catalogued
Date Issued: 2012
Date: 2012
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/243498
Identifier: vital:51158
Identifier: xlink:href="https://doi.org/10.1016/j.optmat.2012.05.018"
Description: A highly non-aggregated series of peripherally tetra(2,6-diisopropylphenoxy) substituted phthalocyanines (Pcs) containing different metals (Al, Ga, In and Zn) were prepared and their nonlinear optical properties (NLO), including the optical limiting behavior were investigated. This study explores the effect of the implanted metals along with the peripheral chlorine atoms on the NLO of the prepared complexes, thereby improving their optical limiting performance. The best wavelength at which the Pc complex exhibits the strongest nonlinear effect was determined over the low absorption window region (420–590 nm) comprised between the Q and B bands using a nanosecond pulsed laser with the aid of a Z-scan technique. The excited state absorption cross sections (σeff) have been found to be wavelength dependent with common double peaks at 505 nm and around 485 nm and the highest value was calculated for Pc1–In (1.1 × 10−16 cm2). The figure of merit spectra show different spectral structure when compared to the excited state absorption spectra and the largest figure of merit value was found to be around 107 for Pc1–In derivative. In full agreement with reverse saturation results, the optical limiting measurements, carried out at 485 nm and 532 nm for each derivative, show very low optical limiting thresholds at the former wavelength. In the continuous wave excitation regime, the Z-scan measurements, which were carried out at 632.8 and 532 nm, showed strong refractive and absorptive nonlinear effects.
Format: computer
Format: online resource
Format: application/pdf
Format: 1 online resource (9 pages)
Format: pdf
Publisher: Elsevier
Language: English
Relation: Optical Materials
Relation: Tuhl, A., Manaa, H., Makhseed, S., Al-Awadi, N., Mathew, J., Ibrahim, H.M., Nyokong, T. and Behbehani, H., 2012. Reverse saturation absorption spectra and optical limiting properties of chlorinated tetrasubstituted phthalocyanines containing different metals. Optical Materials, 34(11), pp.1869-1877
Relation: Optical Materials volume 34 number 11 p. 1869 2012 1873-1252
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
Rights: Closed Access

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RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology

Nyokong, Tebello (Distinguished Professor)

RU Department of Chemistry

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