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|Title:||Observation of a fifth-order optical nonlinearity in Bi0.9 La0.1 Fe0.98 Mg0.02 O3 ferroelectric thin films|
|Authors:||Gu, B. |
|Citation:||Gu, B., Wang, Y., Ji, W., Wang, J. (2009). Observation of a fifth-order optical nonlinearity in Bi0.9 La0.1 Fe0.98 Mg0.02 O3 ferroelectric thin films. Applied Physics Letters 95 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3191668|
|Abstract:||Ferroelectric Bi0.9 La0.1 Fe0.98 Mg 0.02 O3 thin films with high optical quantity were deposited on quartz substrates by radio frequency magnetron sputtering at 650°C. The interplay between third- and fifth-order optical nonlinearities is observed by performing Z -scans under femtosecond laser excitation with 1.60 eV photon energy. The measured third-order nonlinearities mainly originate from electronic Kerr effect and two-photon absorption (2PA), while the population redistribution assisted by 2PA leading to an equivalent stepwise X3: X1 process is the main mechanism of the fifth-order effect. © 2009 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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