Linear And Nonlinear Optical Susceptibilities And Hyperpolarizability Of Borate Linab4o7 Single Crystals

1143 WordsOct 23, 20145 Pages
Linear and Nonlinear Optical Susceptibilities and Hyperpolarizability of Borate LiNaB4O7 Single Crystals: Theory and Experiment Ali Hussain Reshak, Xuean Chen, S. Auluck and H. Kamarudin Journal of Applied Physics 2012 Volume 112, Issue 5, Pages 053526 (1 – 11) Since the successful demonstration of second harmonic generation by a propagation of a ruby laser beam via a quartz crystal by Franken et al,1 borate materials have been widely studied to employ in the potential applications such as nonlinear optics (NLO) and laser (mainly in visible and UV light) engineering.2, 3, 4, 5 Materials with NLO properties are useful for generating new frequency laser sources that cannot be directly produced from the common laser sources.2 Consequently, NLO materials have enabled a wider range of frequencies produced from the available laser. Borate materials have a few great properties, for example, short growth period, high damage threshold, large effective nonlinear coefficient and good mechanical properties.6 This suggests that borate materials are well fitted for the purpose of laser frequency conversion. BaB2O4, LiB3O5, CsB3O5 and YCa4(BO3)3O are examples of well-known borate-based NLO crystals.2 An early review on the comparison of the damage threshold and optical transmittance of these mentioned borate crystal compounds have been done by Becker in which the use of the favourable anionic group and birefringence in the borate materials are the essential features needed to produce

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