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Third order nonlinear optical properties and optical limiting behavior of alkali metal complexes of p-nitrophenol
Thangaraj M, , Sabari Girisun T.C, Anandan P, Ravi G.
Published in Elsevier BV
Volume: 73
Pages: 130 - 134
Optical nonlinearity of metal complexes of p-nitrophenolate (M=Li, Na and K) in ethanol is studied by using a continuous wave (cw) diode pumped Nd:YAG laser (532 nm, 50 mW). The predominant mechanism of observed nonlinearity is thermal in origin. The nonlinear refractive index and the nonlinear absorption coefficient of the samples were found to be in the order of 10-8 cm2/W and 10-3 cm/W respectively. Magnitude of third-order optical parameters varies according to the choice of alkali metal chosen for metal complex formation of p-nitrophenolate. The third-order nonlinear susceptibility was found to be in the order of 10-6 esu. The observed saturable absorption and the self-defocusing effect were used to demonstrate the optical limiting action at 532 nm by using the same cw laser beam. © 2015 Elsevier Ltd. All rights reserved.
About the journal
JournalData powered by TypesetOptics & Laser Technology
PublisherData powered by TypesetElsevier BV
Open AccessNo