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Linear and nonlinear optical properties of erbium doped zinc borotellurite glass system

Abd Azis, Muhammad Noorazlan and Mohamed Kamari, Halimah and Ab. Aziz, Sidek (2017) Linear and nonlinear optical properties of erbium doped zinc borotellurite glass system. Journal of Luminescence, 181 . pp. 400-406. ISSN 0022-2313; ESSN: 1872-7883

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Abstract

A glass series of erbium doped zinc borotellurite glass system was prepared by using the melt-quenching method. The absorption spectra revealed several bands at visible range which correspond to the following transitions (from the ground state); 4G11/2 + 2H9/2 + 4F5/2 + 4F7/2 + 2H11/2 + 4S3/2 + 4F9/2 + 4I9/2 + 4I11/2. From the Judd–Ofelt analysis, it is found that the trend of Ω2 values is a non-linear variation along with erbium concentrations. Meanwhile, the value of Ω6 decreases as the erbium concentration increases. The photoluminescence analysis shows green emission which are attributed to the 4S3/2 level to the ground state at 4I15/2. Meanwhile, the upconversion analysis revealed several emission bands at 376 nm, 424 nm, 470 nm and 558 nm which correspond to 4G11/2 → 4I15/2, 4F3/2 → 4I15/2, 4F7/2 → 4I15/2 and 4S3/2 → 4I15/2 transitions respectively. The non-linear refractive index spectra show self-defocusing behavior and negative nonlinear refraction (ƞ2<0) under laser excitation at 532 nm of wavelength. The obtained values of nonlinear absorption and nonlinear susceptibility revealed nonlinear variations.

Item Type:Article
Keyword:Borotellurite glass; Luminescence; Upconversion; Nonlinear optical properties
Faculty or Institute:Faculty of Science
Publisher:Elsevier
DOI Number:10.1016/j.jlumin.2016.09.047
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jlumin.2016.09.047
ID Code:52148
Deposited By: Nabilah Mustapa
Deposited On:05 May 2017 11:01
Last Modified:05 May 2017 11:01

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