Effect of size and composition on the second harmonic generation from lithium niobate powders at different excitation wavelengths

被引:15
作者
Sanchez-Dena, O. [1 ]
Garcia-Ramirez, E. V. [1 ]
Fierro-Ruiz, C. D. [2 ]
Vigueras-Santiago, E. [3 ]
Farias, Rurik [2 ]
Reyes-Esqueda, J. A. [1 ]
机构
[1] Univ Nacl Autonoma Mexico, Inst Fis, Cd Mx 04510, DF, Mexico
[2] Univ Autonoma Ciudad Juarez, Av Del Charro 450 Norte, Ciudad Juarez 32310, Chihuahua, Mexico
[3] Univ Autonoma Estado Mexico, Lab Invest & Desarrollo Mat Avanzados, Toluca 50120, Estado De Mexic, Mexico
关键词
second harmonic generation; nonlinear optics materials; nanomaterials; lithium niobate;
D O I
10.1088/2053-1591/aa62e5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
LiNbO3 microcrystalline systems, possessing almost stoichiometric composition, were produced by varying the temperature and time parameters in the annealing processes following a mechanochemical reaction of raw powders. SHG from these samples, detected for every fundamental wavelength in the range 800-1300 nm, and being maximal at a certain wavelength, lambda(max), for each sample, has been addressed to a random scattering of the induced nonlinear polarizations. Possible tuning of lambda(max) could be ascribed to control of composition and grain size of the sample. Random orientation of the produced nanocrystallites was verified since no dependence for SHG intensity on incident polarization was observed.
引用
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页数:7
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