Characterizations of Single-Crystal Lithium Niobate Thin Films

Crystals

Honghu Zhang¹  Qingyun Li¹  Houbin Zhu¹  Hui Hu¹ 

[1] State Key Laboratory of Crystal Materials, School of Physics, Shandong University, Jinan 250100, China;

关键词: lithium niobate thin films;    crystal lattice;    domain inversion voltage;    electro-optical coefficient;   

DOI  :  10.3390/cryst12050667

来源: DOAJ

【 摘 要 】

Single-crystal lithium niobate thin films (lithium niobate on insulator, LNOI) are becoming a new material platform for integrating photonics. Investigation into the physical properties of LNOI is important for the design and fabrication of photonic devices. Herein, LNOIs were prepared by two methods: ion implantation and wafer bonding; and wafer bonding and grinding. High-resolution X-ray diffraction (HRXRD) and confocal Raman spectroscopy were used to study the LNOI lattice properties. The full-width at half-maximum (FWHM) of HRXRD and Raman spectra showed a regular crystal lattice arrangement of the LNOIs. The domain inversion voltage and electro-optical coefficient of the LNOIs were close to those of LN bulk material. This study provides useful information for LNOI fabrication and for photonic devices in LNOI.

【 授权许可】

Unknown