Picosecond Nonlinear Optical Transmission Measurement on Anatase TiO2 Thin Films
A TiO2 optical thin ¯lm is fabricated by use of a sol-gel method. The structure of the TiO2 thin ¯lm is examined by using an X-ray diraction measurement, which shows that the gelation process at 500 ±C results in an anatase phase. A nonlinear optical transmission measurement is performed by pumping...
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Veröffentlicht in: | Journal of the Korean Physical Society 2006, 49(3), , pp.938-942 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A TiO2 optical thin ¯lm is fabricated by use of a sol-gel method. The structure of the TiO2 thin ¯lm is examined by using an X-ray diraction 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 ¯lm. 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 TiO2 thin ¯lm. KCI Citation Count: 2 |
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ISSN: | 0374-4884 1976-8524 |