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Picosecond nonlinear optical transmission measurement on anatase TiO 2 thin films

Title
Picosecond nonlinear optical transmission measurement on anatase TiO 2 thin films
Authors
Kim M.J.Hwang J.Wu J.W.Lee S.M.Rhee B.K.Kwak J.H.An I.
Ewha Authors
우정원
SCOPUS Author ID
우정원scopus
Issue Date
2006
Journal Title
Journal of the Korean Physical Society
ISSN
0374-4884JCR Link
Citation
vol. 49, no. 3, pp. 938 - 942
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
A TiO2 optical thin film is fabricated by use of a sol-gel method. The structure of the TiO2 thin film is examined by using an X-ray diffraction measurement, which shows that the gelation process at 500 °C results in an anatase phase. A nonlinear optical transmission measurement is performed by pumping near the energy gap edge of the TiO2 thin film. The nonlinear optical responses of the d- and the sp-orbitals are found to be responsible for the large optical Kerr nonlinearity in the anatase TiO 2 thin film.
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자연과학대학 > 물리학전공 > Journal papers
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