Nonlinear optical properties and domain microstructure of epitaxial SrBi2Nb2O9 thin films on SrTiO3 and on MgO substrates studied by second-harmonic generation

2003 ◽  
Vol 222 (1-6) ◽  
pp. 289-297 ◽  
Author(s):  
D. Rouède ◽  
Y.Le Grand ◽  
L. Leroy ◽  
J.R. Duclère ◽  
M. Guilloux-Viry
2016 ◽  
Vol 45 (18) ◽  
pp. 7627-7633 ◽  
Author(s):  
Molin Zhou ◽  
Chao Li ◽  
Xiaoshuang Li ◽  
Jiyong Yao ◽  
Yicheng Wu

New selenides K2Sn2ZnSe6, Na2Ge2ZnSe6, and Na2In2GeSe6 exhibit diverse structures and Na2In2GeSe6 possesses a moderate second harmonic generation response.


2011 ◽  
Vol 105 (1) ◽  
pp. 149-162 ◽  
Author(s):  
M. Gentile ◽  
M. Hentschel ◽  
R. Taubert ◽  
H. Guo ◽  
H. Giessen ◽  
...  

2000 ◽  
Vol 33 (2) ◽  
pp. 380-386 ◽  
Author(s):  
H. Hellwig ◽  
S. Rühle ◽  
P. Held ◽  
L. Bohatý

Linear and nonlinear optical properties of the four isomorphic orthorhombic (point groupmm2) potassium rare earth nitrates K2[RE(NO3)5(H2O)2], with RE = La, Ce, Pr or Nd, have been investigated. Refractive indices in a wavelength range from 0.35 to 2.5 µm and the transmission spectra between 0.25 to 3.0 µm were measured. Using the Maker fringe technique, the d_{ijk}^{\rm\, SHG} coefficients of second-harmonic generation for a fundamental of the Nd–YAP laser (λ = 1079.5 nm) were determined for all four compounds. The d_{ijk}^{\rm\, SHG} coefficients of all four substances are about three times larger than those of KDP, as was first published by Ebberset al.[IEEE J. Quantum Electron.(1993),29, 497–507] for K2[La(NO3)5(H2O)2]. These nitrates are promising materials for application to nonlinear optics (e.g.second-harmonic generation of Nd laser radiation). The nonlinear optical properties of these compounds seem to have their origin mainly in the nitrate groups, as indicated by a simple model (summing the molecular hyperpolarizabilities of the NO3group). Neglecting local field effects, the hyperpolarizability of the NO3group was calculated as β222= 2.52 × 10−40 m4 V−1.


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