Superior characteristics of organic chalcone single crystals as efficient nonlinear optical material

High-quality biaxial single crystals of chalcone derivatives were grown by solution growth technique. Their molecular structures were designed to possess large second-order nonlinearities by choosing proper donor/acceptor groups while retaining a high transparency in the visible and infrared spectra...

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Bibliographic Details
Published in:Applied physics letters 2008-03, Vol.92 (11), p.113307-113307-3
Main Authors: Kiran, A. John, Kim, H. C., Kim, K., Rotermund, F., Ravindra, H. J., Dharmaprakash, S. M., Lim, H.
Format: Article
Language:English
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Summary:High-quality biaxial single crystals of chalcone derivatives were grown by solution growth technique. Their molecular structures were designed to possess large second-order nonlinearities by choosing proper donor/acceptor groups while retaining a high transparency in the visible and infrared spectral regions. The second-order nonlinear optical coefficients, determined by applying the Maker fringe technique, were found to be much larger than those of Li B 3 O 5 , K Ti O P O 4 , K H 2 P O 4 , and urea. The advantages, such as easy synthesis and crystal growth, low cutoff wavelength ( < 450 nm ) , large optical nonlinearity, and high damage threshold ( > 7.2 GW ∕ cm 2 ) , make these organic crystals promising for efficient frequency doubling.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2896640