Evaluation of crystal structure in TlInS2 by optical second- harmonic generation

6th International Conference on Optical, Optoelectronic and Photonic Materials and Applications 2014

Wakita, K.^1 ; Hagiwara, M.^1 ; Paucar, R.^1 ; Shim, Y.^2 ; Mimura, K.^2 ; Mamedov, N.^3

Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba

275-0016, Japan^1

Osaka Prefecture University, 1-1Gakuen-cho, Naka-ku, Osaka, Sakai

599-8531, Japan^2

Institute of Physics, H. Javid 33, Baku

AZ-1143, Azerbaijan^3

关键词: Confocal laser microscopes;    Ferroelectric phase;    Layered compound;    Low-temperature ferroelectric phase;    Optical second harmonic generation;    Polarization properties;    Symmetric spaces;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/619/1/012006/pdf
DOI  :  10.1088/1742-6596/619/1/012006

来源: IOP

【 摘 要 】

Second-harmonic generation (SHG) in layered TlInS2crystals was studied over the temperature range of 77-300 K using a confocal laser microscope system. As expected, the SHG signal was observed in the low temperature ferroelectric phase of the layered compound. In addition, the polarization properties of the SHG signals of TlInS2were investigated in the 80-180 K range. The results are in good agreement with those of the symmetric space group C32in the ferroelectric phase.