Nonlinear prism based on the natural ferroelectric domain structurein calcium barium niobate

We show the ability of calcium barium niobate as a nonlinear material to produce conical second harmonic generation in a broad frequency range. The nonlinear properties of this system are based on the broad sized microdomain distribution appearing naturally in the as-grown crystal. The large angular...

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Published in:Applied physics letters 2009-02, Vol.94 (7), p.071111-071111-3
Main Authors: Molina, P., Álvarez-García, S., Ramírez, M. O., García-Solé, J., Bausá, L. E., Zhang, Huaijin, Gao, Wenlan, Wang, Jiyang, Jiang, Minhua
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Summary:We show the ability of calcium barium niobate as a nonlinear material to produce conical second harmonic generation in a broad frequency range. The nonlinear properties of this system are based on the broad sized microdomain distribution appearing naturally in the as-grown crystal. The large angular deflection obtained for conical second harmonic generation allows considering this system as a nonlinear prism with variations in the second harmonic generation angle as large as 35° in the wavelength range of 430-660 nm.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3086306