Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
single-crystal substrates irradiated with electrons宮崎 尚*; 守本 純*; 戸田 耕司*; 小野田 忍; 大島 武
Japanese Journal of Applied Physics, 50(7), p.07HB07_1 - 07HB07_4, 2011/07
被引用回数：1 パーセンタイル：4.79(Physics, Applied)Electron irradiation effects on lithium niobate (LiNbO) single crystals have been investigated by photoacoustic spectroscopy (PAS), Fourier transform infrared spectroscopy (FT-IR), and Raman scattering spectroscopy. As a result of PAS and FT-IR, it was found that the oxygen vacancies are generated in LiNbO by electron irradiation. The Raman signal intensity observed from as-sliced surface decreases with increasing electron fluence, although the signal intensity observed from mirror-polished surface is not changed. The differences in these results are related to surface composition. Therefore the control of the composition is the most important to avoid the effects of electron irradiation to LiNbO.
宮崎 尚*; 守本 純*; 戸田 耕司*; 小野田 忍; 大島 武
Proceedings of 9th International Workshop on Radiation Effects on Semiconductor Devices for Space Applications (RASEDA-9), p.226 - 229, 2010/10
LiNO has several advantages for opto-electronic and acousto-optic applications including waveguides, modulators, second harmonic generators and surface acoustic wave (SAW) devices. In this study, we characterized the defects in electron irradiated LiNbO single crystal substrates using Raman. The Raman peak of symmetrical O-Nb-O bending mode drastically decreased with increasing electron irradiation. It is thought that the electron irradiation gives the biggest influence on the Nb-O bond.
