Second Harmonic Generation from Bi3.75La0.25Ti3O12 Thin Films Grown by Sol-gel Method

Min, Haesik; Jeon, Yoonnam; Park, Sungmin; Kwon, Hyosang; Pak, Jaemoon; Park, Doyoung; Song, Sanghoon; Cheong, Hyeonsik; Park, Gwangseo; Kim, Hyunjung; Kim, Doseok

doi:10.3938/jkps.55.1278

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Second Harmonic Generation from Bi3.75La0.25Ti3O12 Thin Films Grown by Sol-gel Method

Min, Haesik;
Jeon, Yoonnam;
Park, Sungmin;
Kwon, Hyosang;
Pak, Jaemoon;
... Cheong, Hyeonsik;
... Kim, Hyunjung;
... Kim, Doseok;
외 3명

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초록

Ferroelectric Bi3.75La0.25Ti3O12 (BLT) thin films were grown on Pt(111)/Ti/SiO2/Si substrates by repeatedly using the sol-gel method at an 800 degrees C annealing temperature. Varying the film thickness via the number of applied sol-gel processes hardly changed the bulk structure as verified by X-ray diffraction and Raman spectroscopy. The optical second-harmonic signal showed no appreciable change either while the phase of the generated second-harmonic signal increased gradually with the film's thickness, suggesting that the second-harmonic signal originated from the buried, bottom BLT layer.

키워드

BLT thin film; Second-harmonic generation; SHG phase measurement; X-ray diffraction; Raman; BISMUTH TITANATE; FERROELECTRIC PROPERTIES; OPTICAL-PROPERTIES; MICROSCOPY; FATIGUE; FIELD; AXIS

제목: Second Harmonic Generation from Bi3.75La0.25Ti3O12 Thin Films Grown by Sol-gel Method

저자: Min, Haesik; Jeon, Yoonnam; Park, Sungmin; Kwon, Hyosang; Pak, Jaemoon; Park, Doyoung; Song, Sanghoon; Cheong, Hyeonsik; Park, Gwangseo; Kim, Hyunjung; Kim, Doseok

DOI: 10.3938/jkps.55.1278

발행일: 2009-09

유형: Article; Proceedings Paper

저널명: Journal of the Korean Physical Society

권: 55

호: 3

페이지: 1278 ~ 1281